Page 1
Instruction Manual
VLT® 2800
Page 2
■ Contents
VLT® 2800 Series
Introduction to VLT 2800
Software version ....................................................................................................... 3
High voltage warning ................................................................................................ 4
These rules concern your safety: .............................................................................. 4
Warnings against unintended start: .......................................................................... 4
............................................................................... 3
Installation ........................................................................................................... 5
Mechanical dimensions ............................................................................................ 5
Mechanical installation .............................................................................................. 9
General information about electrical installation ...................................................... 10
EMC-correct electrical installation ........................................................................... 11
Grounding of shielded/armoured control cables ..................................................... 12
Diagram ................................................................................................................. 13
Electrical installation ............................................................................................... 14
Safety clamp .......................................................................................................... 16
Input fuses ............................................................................................................. 16
AC line connection ................................................................................................. 16
Motor connection ................................................................................................... 16
Direction of motor rotation ...................................................................................... 16
Motor thermal protection ........................................................................................ 16
Parallel connection of motors ................................................................................. 17
Motor cables .......................................................................................................... 17
Brake connection ................................................................................................... 17
Ground connection ................................................................................................ 17
Load sharing .......................................................................................................... 18
Tightening Torque, Power Terminals ....................................................................... 18
Calculation of brake resistance ............................................................................... 18
Access to control terminals .................................................................................... 18
Electrical installation, control circuitry ...................................................................... 18
Tightening torques, control cables .......................................................................... 20
Electrical installation, control terminals .................................................................... 20
Relay connection .................................................................................................... 20
VLT Software Dialog ............................................................................................... 21
Connection examples ............................................................................................. 22
Control unit ............................................................................................................ 24
Manual initialization ................................................................................................. 24
Programming the adjustable frequency drive .......................................................... 25
Display readout ...................................................................................................... 27
Hand / Auto mode operation .................................................................................. 27
Warnings/alarms .................................................................................................... 28
Special conditions .................................................................................................. 29
Temperature-related switching frequency ............................................................... 29
Derating for long motor cables .............................................................................. 29
VLT 2800 start-up .................................................................................................. 29
Programming .................................................................................................... 31
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VLT® 2800 Series
Operation & Display ................................................................................................ 31
Load and Motor ..................................................................................................... 39
References & Limits ................................................................................................ 50
Inputs and Outputs ................................................................................................ 57
Special functions .................................................................................................... 67
Serial communication ............................................................................................. 75
Technical functions ................................................................................................. 84
All about VLT 2800 ......................................................................................... 89
Warnings/alarm messages and corrective actions .................................................. 89
Warning words, extended status words and alarmwords ....................................... 93
Special conditions .................................................................................................. 94
Extreme environments ............................................................................................ 94
Galvanic isolation (PELV) ......................................................................................... 94
UL Standard ........................................................................................................... 94
General technical data ............................................................................................ 96
Technical data, mains supply 1 x 220 - 240 V/3 x 200-240V ................................ 100
Technical data, AC line supply 3 x 380 - 480 V ..................................................... 101
Available literature ................................................................................................. 102
Supplied with the unit ........................................................................................... 102
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Document Version Number 5.00.
VLT® 2800 Series
VLT 2800 Series
Instruction Manual
Software version: 2.7x
This Instruction Manual can be used for all VLT 2800 Series
adjustable frequency drives (AFD) with software version 2.7x.
The software version number can be seen from parameter
640 Software Version.
195NA009.17
2800
Introduction to VLT
NOTE
Indicates something to be noted by the reader.
Indicates a general warning.
Indicates a high-voltage warning.
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VLT® 2800 Series
■High voltage warning
The voltage of the adjustable frequency
drive is dangerous whenever the drive is
connected to electrical current. Incorrect
fitting of the motor or adjustable frequency drive may
cause damage to the equipment, serious injury or
death. Consequently, it is essential to comply with
the instructions in this manual as well as local and
national rules and safety regulations.
■These rules concern your safety:
1. Disconnect the adjustable frequency drive from
the AC line if repair work is to be carried out. Wait
4 minutes to allow for electrical discharge before
removing motor and AC line connectors.
2. The [STOP/RESET] key on the control panel
oftheadjustablefrequencydrivedoesnot
disconnect the equipment from the AC line.
Do not use it as a safety switch.
3. The unit must be grounded correctly. The user
must be protected against supply voltage and the
motor protected against overload in accordance
with applicable national and local regulations.
4. The ground leakage currents are higher than 3.5 mA.
5. Protection against motor overload is not included in
the factory setting. If this function is required, set
parameter 128 M otor thermal protection to ETR
trip or ETR warning. For North America: The ETR
functions provide class 20 overload protect
the motor, in accordance with NEC requirements.
6. Do not remove the terminal plugs for the motor
and AC line supply while the adjustable freq
drive is connected to the AC line. Ensure that
the AC line supply has been disconnected and
ion for
uency
that 4 minutes has passed before removing
motor and AC line plugs.
7. The DC bus terminals are another high voltage
input that must be disconnected before servicing
thedrive. Ensurethatallvoltageinputshave
been disconnected and that 4 minutes has
passed before repair work begins.
■Warnings against unintended start:
1. The motor can be started by means of digital
commands, bus commands, references or
a local start command whenever the drive
is connected to the AC line. Therefore, an
unintended start may occur anytime power is
applied. Never service the drive or equipment
when power is applied to the drive.
2. The motor may start while parameters are
being changed. Always activate the stop key
[STOP/RESET] by pressing it before data is modified.
3. A motor that has been stopped may start if
faults occur in the electronics of the drive, or
if a temporary overload or fault clears in the
AC line or motor connection.
■Motor overload protection
The electronic thermal relay (ETR) in UL listed
VLTs provides Class 20 motor overload protection
in accordance with the NEC in single motor
applications when parameter 128 is set for "ETR
TRIP" and parameter 105 Motor current is set
for the rated motor current.
Warning:
It can be extremely dangerous to touch the electrical parts
even when the mains supply has been disconnected.
Also ensure that other voltage inputs are disconnected
from load sharing through the DC bus.
Wait at least 4 minutes after the input power has been
removed before servicing the drive.
195NA139.10
4
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■Mechanical dimensions
The drawings below give the mechanical dimensions.
All dimensions are in mm.
VLT 2803-2815 200-240 Volt
VLT 2805-2815 380-480 Volt
VLT® 2800 Series
The drawing below gives the mechanical dimensions of
VLT 2840 (5 HP) 200-240 Volt and VLT 2855-2875 (7 10HP) 380-480 Volt. All dimensions are in inches.
VLT 2840 200-240 Volt
VLT 2855-2875 380-480 Volt
The drawing below gives the mechanical dimensions of
VLT 2822 (3 HP) 200-240 Volts and VLT 2822-2840 (3
- 5 HP) 380-480 Volts. All dimensions are in inches.
VLT 2822 200-240 Volt
VLT 2822-2840 380-480 Volt
Installation
VLT 2880-82 380-480V
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VLT® 2800 Series
■Motor coils (195N3110)
■RFI 1B filter (195N3103)
■Terminal cover
The drawing below gives the dimensions for NEMA
1 terminal covers for VLT 2803-2875.
Dimension ’a’ depends on the unit type.
■IP 21 solution
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VLT® 2800 Series
Dimensions
Typ e Code number A B C
VLT 2803-2815 200-240 V, VLT 2805-2815 380-480 V 195N2118 47 80 170
VLT 2822 200-240 V, VLT 2822-2840 380-480 V 195N2119 47 95 170
VLT 2840 200-240 V, VLT 2855-2875 380-480 V 195N2120 47 145 170
VLT 2880-2882 380-480 V 195N2126 47 205 245
■EMC filter for long motor cables
192H4719
Installation
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VLT® 2800 Series
192H4720
192H4893
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VLT® 2800 Series
■Mechanical installation
The adjustable frequency drive is cooled by air
circulation. For proper cooling, allow a minimum
of 4 inches (100 mm) of open space above and
below the unit. To protect the unit from overheating,
ensure that both the ambient temperature and the
24-hour average temperature are not exceeded.
The maximum temperature and 24-hour average
are listed in General technical data in this manual. If
the ambient temperature is in the range of 113°F 131°F (45°C - 55°C), derating of the drive must be
carried out. See Derating for ambient temperature
in this manual. The service life of the unit will be
reduced without applicable derating.
The requirements that apply to enclosures
and remote mounting must be complied
with to avoid serious injury or equipment
damage, especially when installing large units.
■Enclosures
In the USA and some other countries, a NEMA 1
terminal cover enclosing terminal connectors is required
if the drive is not installed within another enclosure.
■Side-by-side
All VLT 2800 units can be installed side-by-side
and in any position, as the units do not require
ventilation on the side.
Installation
■Spacing for mechanical installation
All units require a minimum of 4 in of air from other
components above and below the enclosure.
NOTE
With the IP 21 solution all units require a
minimum of 4 in air on each side. This means
that side-by-side mounting is n
ot allowed.
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■General information about electrical installation
■High voltage warning
The voltage of the adjustable frequency
drive is dangerous whenever the drive
is connected to the AC line. Incorrect
installation of the motor or drive may cause damage
to the equipment, serious injury or death. Comply
with the safety instructions in this manual as well
as local and national rules and safety regulations.
Touching electrical parts may be fatal - even after the
equipment has been disconnected from the AC line.
Wait at least 4 minutes for current to dissipate.
NOTE
It is the responsibility of the user or installer
to ensure correct grounding and protection in
accordance with national and local standards.
VLT® 2800 Series
■Grounding
Comply with the following at installation:
• Safety grounding: The drive has a high leakage
current and must be grounded properly for safety.
Follow all local safety regulations.
• High frequency grounding: Keep grounding
cables as short as possible.
Connect all grounds to ensure the lowest possible
conductor impedance. The lowest possible conductor
impedance is achieved by keeping the conductor as
short as possible and by grounding with the greatest
possible surface area. If multiple drives are installed
in a cabinet, the cabinet backplate, which must be
made of metal, should be used as a joint ground
reference plate. The drives must be fitted to the
backplate at the lowest possible impedance.
To achieve low impedance, connect the drive to the
backplate with the drive fastening bolts. Remove
all paint from the contact points.
■High voltage test
A high voltage test can be performed by short-circuiting
terminalsU,V,W,L1,L2andL3,andapplying
max. 2160 V DC in 1 sec. between this
short-circuit and terminal 95.
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■EMC-correct electrical installation
General points to be observed to ensure
EMC-correct electrical installation.
- Use only shielded/armoured motor cables and
shielded/armoured control cables.
- Connect the screen to ground at both ends.
- Avoid installation with twisted shield ends (pigtails),
since this ruins the shielding effect at high
frequencies. Use cable clamps instead.
VLT® 2800 Series
- It is important to ensure good electrical contact from
the installation plate through the installation screws
to the metal cabinet of the variable frequency drive.
- Use starwashers and galvanically conductive
installation plates.
- Do not use unshielded/unarmoured motor
cables in the installation cabinets.
The illustration below shows EMC-correct electrical
installation, in which the variable frequency
drive has been fitted in an installation cabinet
and connected to a PLC.
Installation
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■Grounding of shielded/armoured control cables
In general control cables must be shielded/armoured,
and the shield must be connected to the unit’s metal
cabinet with a cable clamp at each end.
The drawing below shows the correct way to perform
the grounding, and what to do when in doubt.
1. Correct grounding
Control cables and cables for serial
communication must be attached with cable
clamps at both ends to ensure maximum
possible electrical contact.
2. Incorrect grounding
Do not use twisted shield ends that are
plaited together (pigtails), as these increase shield
impedance at higher frequencies.
3. Protection with respect to ground
potential between PLC and VLT
f the ground potential between the VLT
variable frequency drive and the PLC (etc.)
is different, electric noise may occur that will
disturb the whole system. This problem can
be solved by fitting an equalising cable, to be
placed next to the control cable. Minimum cable
cross-section: 6 AWG (16 mm
2
).
4. n the event of a 50/60 Hz ground loop
If very long control cables are used, 50/60 Hz
ground loops can arise, and these can interfere
with the whole system. This problem is resolved
by attaching one end of the shield to the gr
ound
via a 100 nF capacitor (short pin length).
VLT® 2800 Series
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■Diagram
VLT® 2800 Series
* Integrated 1A RFI filter and brake is an option.
** VLT 2803-2815 200-240 V is not supplied
with intermediate circuit coils.
Installation
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■Electrical installation
VLT® 2800 Series
VLT 2803-2815 200-240 V, 2805-2815 380-480 V
14
VLT 2822 200-240 V, 2822-2840 380-480 V
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VLT® 2800 Series
VLT 2840 200-240 V, 2855-2875 380-480 V
Installation
VLT 2880-2882 380-480V
Please note, that the units will be supplied
with two bottom plates; one for metric glands
and one for conduits.
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VLT® 2800 Series
■Safety clamp
To maintain the galvanic isolation (PELV) between
the control terminals and high-voltage terminals, the
accompanying safety clamp must be attached to
VLT 2803-2815, 200-240 V, and VLT 2805-2815,
380-480 V. Attach the safety clamp to the strain
relief plate with the two screws provided.
■Input fuses
For all unit types, external fuses must be fitted in the
AC line supply to the drive. For UL/cUL applications
with an AC voltage of 200-240 Volts, use fuses type
Bussmann KTN-R (200-240 Volts) or Ferraz Shawmut
type ATMR (max. 30A). For UL/ cUL applications
with an AC voltage of 380-480 Volts, use fuses type
Bussmann KTS-R (380-480 Volts). See Technical data
in this manual for correct dimensioning of fuses.
It is the responsibility of the installer or
user to insure proper external AC power
input fusing to the drive.
380-460 Volt units with RFI-filters may not
be connected to AC line supplies in which
the voltage between phase and ground is
more than 300 Volts. Please note that for the AC line
for IT and the delta ground the AC line voltage can
exceed 300 Volts between phase and ground. Units
with type code R5 can be connected to mains supplies
with up to 400 V between phase and ground.
See Technical data for correct dimensioning
of cable cross-section.
■Motor connection
NOTE
It is recommended that an LC filter be
connected to the output of the drive for motors
without phase insulation paper.
See Technical data in this manual for correct
dimensioning for cable cross-section. All types
of three-phase asynchronous standard motors
can be connected to a drive.
■AC line connection
All drives that are equipped with an RFI
filter cannot be connected to a grounded
DELTA or IT mains/AC line system.
NOTE
Check that the AC voltage matches the voltage
rating of the drive. The drive rating is on the
drive nameplate. See Tech nical data in this
manual for correct dimensioning of cable cross-section.
For single phase 220-240 Volts input, attach the
neutral wire to terminal N
phase wire to terminal L1
No. N
(L2)L1(L1) (L3)
NL1
No. 95 Ground connection
No. N
(L2)L1(L1) (L3)
L2 L1 L3
No. 95 Ground connection
No. 91 92 93 AC line voltage 3 x 380-480 V
L1 L2 L3
No. 95 Ground connection
AC line voltage 1 x 220-240 V
AC line voltage 3 x 220-240 V
and connect the
(L2)
.
(L1)
Connect the motor to terminals 96, 97, 98.
Connect ground to terminal 99.
N0. 96 97 98 Motor voltage 0-100%
UVW of AC line voltage.
N0. 99 Ground connection
See Technical data for correct dimensioning
of cable cross-section.
Ensure that the motor is wired for the line voltage
before connecting to the drive.
■Direction of motor rotation
To change the direction of motor rotation, switch any
two phases at the drive output or at motor terminals.
■Motor thermal protection
The electronic thermal relay in UL approved variable
frequency drives has received the UL approval for single
motor protection, when parameter 128 Motor thermal
protection has been set for ETR Trip and parameter
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VLT® 2800 Series
105 Motor current, I
has been programmed to
M, N
the rated motor current (see motor nameplate).
■Parallel connection of motors
Theadjustablefrequencydriveisabletocontrol
several motors connected in parallel. The combined
total current consumption of the motors is not to
exceed the maximum rated output current (I
the adjustable frequency drive. If the motors are to
have different rpm values, use motors with different
rated rpm values. Motor frequency is changed
simultaneously, which means that the ratio between
the rated rpm values is maintained.
INV
)for
NOTE
If an unshielded/unarmoured cable is used,
some EMC requirements are not complied with,
see EMC test results in the Design Guide.
If the EMC specifications regarding emission are
to be complied with, the motor cable must be
shielded/armoured, unless otherwise stated for the
RFI filter in question. It is important to keep the
motor cable as short as possible so as to reduce the
noise level and leakage currents to a minimum. The
motor cable shield must be connected to the metal
cabinet of the variable frequency drive and to the metal
cabinet of the motor. The shield connections are to
be made with the biggest possible surface area (cable
clamp). This is enabled by different installation devices
in different variable frequency drives. Mounting with
twisted shield ends (pigtails) is to be avoided, since
these spoil the shielding effect at high frequencies. If
it is necessary to break the shield to install a motor
isolator or motor relay, the shield must be continued
at the lowest possible HF impedance.
■Brake connection
NOTE
Voltages up to 850 VDC occur on the terminals.
Installation
Problems may arise at start-up and when operating
at low rpm if the motor sizes are widely different.
This is because the small motors’ relatively high
resistance in the stator calls for a higher voltage
at the start-up and at low rpm.
In systems with motors connected in
parallel, the electronic thermal relay (ETR)
of the adjustable frequency drive cannot
be used as motor protection for the individual motor.
Protection must be provided individually for each motor.
■Motor cables
See Technical data for correct sizing of motor cable
cross-section and length. Always comply with national
and local regulations on cable cross-section.
No. 81 82 Brake resistor
R- R+ terminals
Connect the brake resistor wiring to drive terminals 81
and 82. The connection cable to the brake resistor
must be shielded/armored. Connect the shield to
both the ground of the drive and the brake resistor by
means of cable clamps. Dimension the cross-section
of the brake cable to match the brake torque.
■Ground connection
Since the leakage currents to ground may be higher
than 3.5 mA, the adjustable frequency drive must
always be connected to ground in accordance with
applicable national and local regulations. To ensure
that the ground cable has good mechanical connection
to terminal 95, the cable cross section must be a
minimum 7 AWG (10 mm
2
). To improve protection
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VLT® 2800 Series
even further, a Recidual Current Device (RCD) can be
fitted to ensure that the adjustable frequency drive
cuts out when the leakage currents get too high. Also
see RCD Application note MN.90.GX.02.
■Load sharing
Load sharing provides the facility to connect several
frequency converters’ DC intermediate circuits.
Note that voltage levels of up to 850 V DC
may occur between terminals 88 and 89.
■Tightening Torque, Power Terminals
Power and ground terminals must be tightened
with the following torques:
VLT Terminals To rq ue [ N m]
Power line brake 0.5-0.62803-
{new-
Ground 2-3
line/}2875
Power line brake 1.2-1.52880-
{new-
Ground 2-3
line/}2882
This requires that the installation is extended using
extra fuses and AC coils (see drawing below).
For load sharing parameter 400 Brake function
must be set to Load sharing [5].
Use 6.3 mm Faston Plugs for DC (Load Sharing).
Contact Danfoss or see instructions no. MI.50.NX.02
for further information.
No. 88 89 Loadsharing
-+
motor current exceeds the preset value in parameter
140. When stopping the brake is engaged when the
output frequency is less than the brake engaging
frequency, which is set in par. 139.
If the variable frequency drive is placed at alarm
status or in an overvoltage situation the mechanical
brake is cut in immediately.
NOTE
This application is only for lifting/lowering
without a counterbalance.
■Access to control terminals
All control terminals are located underneath the
protective plate on the front of the adjustable
frequency drive. Remove the protective plate by
sliding it downwards (see drawing).
■Calculation of brake resistance
In lifting/lowering applications you need to be able
to control an electromagnetic brake. The brake is
controlled using a relay output or digital output (terminal
46). The output must be kept closed (voltage-free)
for the period of time during which the variable
frequency drive is not able to ’support’ the motor,
for example due to the load being too great. Select
Mechanical brake control in parameter 323 or 341 for
applications with an electromagnetic brake.
When the output frequency exceeds the brake cut
out value set in par. 138, the brake is released if the
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VLT® 2800 Series
■Electrical installation, control circuitry
NOTE
Using unshielded/unarmored cable may not
comply with some EMI/RFI requirements.
Control wires must be shielded/armored. Connect the
shield to the drive chassis with a clamp. Normally,
the shield must also be connected to the chassis of
the controlling device. (See the instructions for the
specific device.) In analog signals or connections using
very long wires, 50/60 Hz ground loops may occur
because of noise transmitted from the AC line. It may
be necessary to break the shield and insert a 100 µF
capacitor between the shield and the chassis.
Installation
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VLT® 2800 Series
■Tightening torques, control cables
Control wires must be connected with a tightening
torque of 0.22–0.25 Nm.
■Electrical installation, control terminals
NOTE
Using unshielded/unarmored cable may not
comply with some EMC/RFI requirements.
Refer to the following table for VLT 2800 terminal
designations and their functional descriptions.
No. Function
01-03 Relay outputs 01-03 can be used for
indicating status and alarms/warnings.
12 24 VDC voltage supply.
18-33 Digital inputs.
20, 55 Common frame for input
and output terminals.
42 Analog output for displaying frequency,
reference, current or torque.
1
46
Digital output for displaying status,
warnings or alarms, as well as
frequency output.
50 +10 VDC supply
voltage for potentiometer or thermistor.
53 Analog voltage input 0 - 10 V DC.
60 Analog current input 0/4 - 20 mA.
1
67
+ 5 VDC supply voltage
to Profibus.
68,
69
70
RS-485, Serial communication.
1
1
Frame for terminals 67, 68 and 69.
Normally this terminal is not to be used.
NOTE
To supply internal 24 VDC voltage to the
digital input terminals, jumper terminal
12 to terminal 27.
■Relay connection
See parameter 323, Relay output for programming
of relay output.
No. 01 - 02 1 - 2 make (normally open)
01 - 03 1 - 3 break (normally closed)
NOTE
The cable jacket for the relay must cover
the first row of control card terminals -
otherwise the galvanic isolation (PELV)
cannot be maintained. Maximum cable diameter:
0-160 in (4 mm). See drawing.
■Profibus DIP switches setting
The dip switch is only on the control card with Profibus
DP communication. The switch position shown is the
factory setting. Switches 1 and 2 are used as cable
termination for the RS-485 interface. If the adjustable
frequency drive is located as the first or last (or only)
unit in the bus system, switches 1 and 2 must be ON.
On the remaining adjustable frequency drives, switches
1 and 2 must be OFF. Switches 3 and 4 are not applied.
1. The terminals are not valid for DeviceNet. See the
DeviceNet manual, MG.90.BX.YY for further details.
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■VLT Software Dialog
Connection to terminals 68-70 or
Sub D:
-PIN3GND
- PIN 8 P-RS 485
- PIN 9 N-RS 485
■Sub D plug
An LCP 2 control unit can be connected to the Sub D
plug on the control card. Ordering number: 175N0131.
LCP control units with ordering number 175Z0401
are not to be connected.
VLT® 2800 Series
Installation
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■Connection examples
■Start/stop
Start/stop using terminal 18 and coasting
stop using terminal 27.
Par. 302 Digital input = Start [7]
Par. 304 Digital input = Coasting stop inverted [2]
VLT® 2800 Series
■Speed up/slow down
Speed up/slow down using terminals 29/33.
Par. 302 Digital input = Start [7]
Par. 303 Digital input = Freeze re ference [14]
Par. 305 Digital input = Speed up [16]
Par. 307 Digital input = Slow down [17]
For Precise start/stop the following settings are made:
Par. 302 Digital input = Precise start/stop [27]
Par. 304 Digital input = Coasting stop inverted [2]
■Pulse start/stop
Pulse start using terminal 18 and pulse stop
using terminal 19. In addition, the jog frequency
is activated via terminal 29.
Par. 302 Digital input = Pulse start [8]
Par. 303 Digital input = Stop inverted [6]
Par. 304 Digital input = Coasting stop inverted [2]
Par. 305 Digital input = Jog [13]
■Potentiometer reference
Voltage reference via a potentiometer.
Par. 308 Analog input = Reference [1]
Par. 309 Terminal 53, min. scaling =0Volt
Par. 310 Terminal 53, max. scaling =10Volt
■Connection of a 2-wire transmitter
Connection of a 2-wire transmitter as feedback
to terminal 60.
22
Par. 314 Analog input = Feedback [2]
Par. 315 Terminal 60, min. scaling =4mA
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Par. 316 Terminal 60, max. scaling =20mA
VLT® 2800 Series
Installation
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VLT® 2800 Series
■Control unit
Onthefrontofthevariablefrequencydrive
there is a control panel.
The control panel is divided into five functional groups:
1. Status LED
2. Keys for changing parameters and shifting
display function.
3. LEDs.
4. Keys for local operation.
The [CHANGE DATA] key is also used for confirming
a change of parameter settings.
[+] / [-] are used for selecting parameters and
for changing parameter values.
These keys are also used in Display mode for selecting
the display of an operating value.
The [QUICK MENU] + [+] keys must be
pressed at the same time to give access to all
parameters. See Menu mode.
[STOP/RESET] is used for stopping the
connected motor or for resetting the variable
frequency drive after a trip.
Can be selected as Active [1] or Not active [0] via
parameter 014 Local stop/reset.InDisplaymode,the
display will flash if the stop function is activated.
NOTE
If the [STOP/RESET] key is set at Not active
[0] in parameter 014 Local stop/reset,and
thereisnostopcommandviathedigital
inputs or serial communication, the motor can
only be stopped by disconnecting the electrical
voltage to the variable frequency drive.
[START] is used for starting the variable frequency
drive. It is always active, but the [START] key
cannot override a stop command.
All displays of data are in the form of a six-digit LED
display capable of showing one item of operating
data continuously during normal operation. As a
supplement to the display, there are three LEDs
for indication of electrical connection (ON), warning
(WARNING) and alarm (ALARM). Most of the
variable frequency drive’s parameter Setups can be
changed immediately via the control panel, unless
this function has been programmed as Locked [1]
via parameter 018 Lock for data changes.
■Control keys
[QUICK MENU] allows access to the parameters
used for the Quick menu.
The[QUICKMENU]keyisalsousedifachangetoa
parameter value is not to be implemented.
See also [QUICK MENU] + [+].
[CHANGE DATA] is used for changing a setting.
■Manual initialization
To manually initialize the adjustable frequency drive to
factory default settings, first disconnect AC line voltage.
Hold the [QUICK MENU] and [+] and [CHANGE DATA]
keys down while simultaneously reconnecting the AC
line voltage. Release the keys. The drive has now
been programmed for factory settings.
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Page 26
■Data readout:
Display mode
VLT® 2800 Series
In normal operation, one item of operating data can
be displayed continuously at the operator’sown
choice. By means of the [+/-] keys the following
options can be selected in Display mode:
- Output frequency[Hz]
- Output current [A]
- Output voltage [V]
- Intermediate circuit voltage [V]
-Outputpower[kW]
- Scaled output frequency f
out
x p008
Menu mode
In order to enter the Menu mode [QUICK MENU] +
[+] must be activated at the same time.
In Menu mode, most of the variable frequency drive
parameters can be changed. Scroll through the
parameters using the [+/-] keys. While scrolling in the
Menu mode proceeds, the parameter number will flash.
The display shows that the setting in parameter
102 Motor power P
is 0.75. In order to change
M,N
the value of 0.75, [CHANGE DATA] must first
be activated; the parameter value can then be
changed using the [+/-] keys.
The display shows that in parameter 128 Motor thermal
protection the selection made is Thermistor trip [2].
Quick menu
Using the [QUICK MENU] key, it is possible to access
the 12 most important parameters of the variable
frequency drive. After programming, the variable
frequency drive is in most cases ready for operation.
When the [QUICK MENU] key is activated in Display
mode, the Quick menu starts. Scroll through the quick
menu using the [+/-] keys and change the data values
by first pressing [CHANGE DATA] and then changing
the parameter value with the [+/-] keys.
The Quick menu parameters are:
• Par. 102 Motor power P
• Par. 103 Motor voltage U
• Par. 104 Motor frequency f
• Par. 105 Motor current I
• Par. 106 Rated motor speed n
M,N
M,N
M,N
M,N
M,N
• Par. 107 Automatic motor adaption
• Par. 204 Minimum reference Ref
• Par. 205 Max imum reference Ref
MIN
MAX
• Par. 207 Ramp-up time
• Par. 208 Ramp-down time
• Par. 002 Local/remote operation
• Par. 003 Local reference
Parameter 102 - 106 can be read out from
the motor’s nameplate.
Programming the adjustable frequency drive
Installation
If for a given parameter the display shows three
dots at the right, it means that the parameter
value has more than three digits. In order to see
the value, activate [CHANGE DATA].
MG.28.A8.22 - VLT is a registered Danfoss trademark
NOTE
The motor must be stopped to change
parameter data.
Program the drive in accordance with the
following procedure:
1. Press the [QUICK MENU] key to enter
the Quick menu.
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VLT® 2800 Series
2. Scroll through the Quick menu using the
[+] and [-] keys.
3. Change the data values by first pressing
[CHANGE DATA] key
4. and then change the parameter value with
the [+] and [-] keys.
5. Press [CHANGE DATA] again to accept the change
or [QUICK MENU] to cancel the change. Press
[QUICK MENU] once more to exit Quick menu
mode and enter Display mode. (The drive will
default from Quick menu mode to Display mode
in 2 minutes if no activity has taken place.)
NOTE
Enter parameters 102 through 106 data, at
minimum, to ready the drive for operation.
Data for parameters 102 through 106 can
be read from the motor nameplate.
Automatic motor tuning
Automatic motor tuning (AMT) measures stator
resistance R
without the motor turning. This means
S
that the motor is not delivering any torque. AMT
can optimize adjustment of the adjustable frequency
drive to the motor. For best possible tuning, it is
recommended that AMT be performed on a cold
motor. Repeated AMT runs can cause motor heating,
resulting in an increase in the stator resistance. As
a rule, however, this is not critical. (See parameter
107, Automatic motor tuning, AMT, description
for more detail before running AMT.)
7. "107" will then continue to flash with the data
value [0]. Press [QUICK MENU] to exit Menu
mode and enter Display mode.
Perform AMT in accordance with the
following procedure:
1. Press the [QUICK MENU] key to enter
Quick menu mode
2. Use the [+] key to scroll to parameter 107
3. In parameter 107, Automatic m otor tuning,
"107" will now flash.
4. Press [CHANGE DATA] and use the [+] key
to select data value [2], Optimization on (AMT
START). [2] will now flash.
5. Press [START] key to activate AMT
. "107" will
now flash and dashes will move from left to
right in the data value field.
6. When "107" appears once more wit
hthedata
value [0], AMT is complete. Press [STOP/RESET]
to save the motor data into the drive memory.
26
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Page 28
■Display readout
Fr
The variable frequency drive shows the present
output frequency in Hertz [Hz].
Io
The variable frequency drive shows the present
output current in Amps [A].
Uo
The variable frequency drive shows the present
output voltage in Volt [V].
Ud
The variable frequency drive shows the intermediate
circuit voltage in Volt [V].
Po
The variable frequency drive shows the calculated
output in kilowatt [kW].
notrun
This message is shown if an attempt is made to change
a parameter value while the motor is running. Stop
the motor to change the parameter value.
LCP
This message is shown if an LCP 2 control unit is
fitted and the [QUICK MENU] or [CHANGE DATA]
key is activated. If an LCP 2 control unit is fitted
you can only change parameters with that.
Ha
ThevariablefrequencydriveshowsthepresentHand
mode reference frequency in Herz (Hz).
VLT® 2800 Series
■Hand / Auto mode operation
During Auto mode operation, the adjustable frequency
drive receives an external reference through the control
terminals as analog or digital signals. In Auto mode, use
the [+] and [-] keys to scroll through the display of drive
status messages. In Hand mode, it is possible to control
the speed of the drive locally through the keypad.
On the control terminals, the following control signals
will remain active when Hand mode is activated:
• Hand Start (LCP2)
• Off Stop (LCP2)
• Auto Start (LCP2)
• Reset
• Coasting Stop Inverse
• Reset and Coasting Stop Inverse
• Quick Stop Inverse
• Stop Inverse
• Reversing
• DC Braking Inverse
• Setup Select LSB
• Setup Select MSB
• Thermistor
• Precise Stop Inverse
• Precise Stop/Start
• Jog
• Stop Command Via Serial Comm.
Switching between Auto and Hand mode:
To switch between operational modes, press
the [Change Data] key. The display will indicate
the current mode of operation.
Installation
SC
The variable frequency drive shows scaled
output frequency (the present output frequency
x parameter 008).
MG.28.A8.22 - VLT is a registered Danfoss trademark
Use the [+] and [-] keys to toggle between Hand
and Auto mode. Press the [Change Data] key
again to activate the selected mode, otherwise
the mode displayed will take effect automatically
in about three seconds.
Operation in Hand mode:
When the adjustable frequency drive is running normally
in Hand mode, the display will show HA to indicate
Hand mode along with the drive output frequency.
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In Hand mode, the local speed reference can be
increased or decreased with the [+] and [-] keys:
In Hand mode, the [+] and [-] keys are also used to
toggle through status messages. Press and hold the
[Change Data] key for approximately 3 seconds. When
the display begins to flash, use the [+] and [-] keys
to change the drive status display. The displays are
temporary and will default back to output frequency.
NOTE
Parameter 020 can be used to disable
Hand mode operation.
■Warnings/alarms
Warnings or alarms appear in the LED display as a
numerical code [Err. xx]. A warning is displayed until
the fault has been corrected, while an alarm will flash
until the [STOP/RESET] key is pressed. The table in
Warnings/alarms messages in this manual explains
the various warnings and alarms, and whether a fault
locks the adjustable frequency drive. After a Trip
locked fault, cut off the AC line supply and correct the
fault. Then reconnect the AC line supply and press
the [STOP/RESET] key. The adjustable frequency
drive is now reset and ready. See Warnings/alarms
messages in this manual for more detail.
VLT® 2800 Series
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VLT® 2800 Series
■Special conditions
■See Derating for ambient temperature.
The ambient temperature (T
AMB,MAX
temperature allowed. The average (T
) is the maximum
AMB,AVG
)
measured over 24 hours, must be at least 5 °C
lower. If the variable frequency drive operates at
temperatures above 113 °F (45 °C), a derating of
the rated output current is necessary.
■Temperature-related switching frequency
This function ensures the highest possible switching
frequency without the adjustable frequency drive
becoming thermally overloaded. The internal
temperature determines the switching frequency based
on the load, the ambient temperature, the supply
voltage and the cable length. The function ensures that
the drive automatically adjusts the switching frequency
between the minimum and maximum switching
frequency (parameter 411), see drawing below.
■Derating for long motor cables
The adjustable frequency drive has been designed
for a 240 ft (75 m) unscreened/unarmored cable
or a 80 ft (25 m) screened/armored cable and
a motor cable with a rated cross-section. If a
cable with a larger cross-section is required, it is
recommended to reduce the output current by
5% for each step that the cable cross-section is
increased. (Increased cable cross-section leads
to increased capacitance to ground, and thus to
an increased ground leakage current.)
■VLT 2800 start-up
Pre-installation checks
1. Compare drive model number to what was ordered.
2. Ensure each of following are rated for same voltage:
•Drive
•Powerline
• Motor
3. Record following motor data:
• Voltage
• Frequency
• Full load current
• Full load speed
• Power - convert HP to kW (See conversion table
in parameter 102, Motor Power, in this manual.)
4. Ensure that rated drive current is equal to or
greater than total full load current.
• Drive can be at most onesizesmallerthanmotor.
• For multiple motor operations, add full load
current ratings of all motors.
• If drive rating is less than motor(s), full motor
output cannot be achieved.
Installation
When using the LC filter the minimum switch
frequency is 4.5 kHz.
MG.28.A8.22 - VLT is a registered Danfoss trademark
5. Check motor wiring:
• Any disconnect between drive and motor
should be interlocked to drive safety interlock
circuit to avoid unwanted drive trips.
• No power factor correction capacitors can be
connected between drive and motor.
• Two speed motors must be wired
permanently for full speed.
•Y-start,
-run motors must be wired
permanently for run.
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VLT® 2800 Series
Installation checks
1. Input fusing in power supply for all drives
must be provided.
2. Environmental concerns - for standard
NEMA 1 drive:
• Clean air supply
• Dry air (5% to 85% relative humidity,
non-condensing)
• 32°F (0°C) to 104°F (40°C) ambient temperature
operating range, or as rated
• 1000m (3,300 ft) maximum elevation
with no derating
• Keep any construction dirt out of drive.
3. Wiring
• Wire drive in accordance with instructions
and diagrams received with drive.
• Separate conduits must be provided to drive for
input power, output power, and control wiring.
• Protect signal wires from noise.
• Ground each drive individually.
• Double check input and output power
wiring for correct location.
Operational tests - AUTO
1. Ensure that drive follows run/stop and safety
interlock commands from system.
2. Ensure drive follows speed reference, or
feedback, from system.
Setting up drive for motor start
Ensure that all warnings provided in this manual have
been adhered to. Apply power to the unit. Enter motor
nameplate data into drive through Quick Menu.
1. Parameter 102, MOTOR POWER (in kW) (See
conversion table in parameter 102, Motor
Power, in this manual.)
2. Parameter 103, MOTOR VOLTAGE
3. Parameter 104, MOTOR FREQUENCY
4. Parameter 105, MOTOR CURRENT
5. Parameter 106, MOTOR SPEED
6. Parameter 107, select AUTOMATIC
MOTOR TUNING
Operational tests - HAND
1. Check motor rotation from drive. If incorrect,
disconnect input power from drive and reverse
two leads between drive and motor.
2. Accelerate motor quickly to full speed
and verify operation.
3. Decelerate motor quickly to stop and
verify operation.
4. Operate motor over entire speed range while
closely checking for resonance.
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VLT® 2800 Series
■Operation & Display
001 Language
(LANGUAGE)
Value:
✭English (ENGLISH)
German (DEUTSCH)
French (FRANCAIS)
Danish (DANSK)
Spanish (ESPANOL)
Italian (ITALIANO)
Function:
This parameter is used to choose the language
to be shown in the display whenever the LCP
control unit is connected.
Description of choice:
There is a choice of the languages shown. The
factory setting may vary.
002 Local/remote operation
(OPERATION SITE)
Value:
✭Remote operation (REMOTE)
Local operation (LOCAL)
Function:
There is a choice of two different modes of operation
of the variable frequency drive. Remote operation [0]
or Local operation [1]. See also parameter 013 L o cal
control if Local operation [1] is selected.
Description of choice:
If Remote operation [0] is selected, the variable
frequency drive is controlled via:
1. the control terminals or via serial communication.
2. the [START] key. This cannot, however, override
stop commands transmitted via the digital inputs
or via serial communication.
3. the [STOP/RESET] and [JOG] keys, on the
condition that these are active.
If L ocal operation [1], is selected, the variable
frequency drive is controlled via:
1. the [START] key. This cannot, however, override
stop commands via the digital inputs (see
parameter 013 Local control).
[0]
[1]
[2]
[3]
[4]
[5]
[0]
[1]
2. the [STOP/RESET] and [JOG] keys, on the
condition that these are active.
3. the [FWD/REV] key, on the condition that is has
been selected as active in parameter 016 Local
reversing, and that parameter 013 Local control
is set at Local control and open loop [1] or Local
control as parameter 100 [3]. Parameter 200
Output frequency range is set at Both directions.
4. parameter 003 Local reference where the reference
can be set using the [+] and [-] keys.
5. an external control command that can be
connected to the digital inputs (see parameter
013 Local control).
NOTE
The [JOG] and [FWD/REV] keys are located
on the LCP control unit.
003 Local reference
(LOCAL REFERENCE)
Value:
Par.013 Local control must be set to [1] or [2]:
0-f
MAX
(par. 202)
✭ 000,000.000
Par. 013 Lo cal control must be set to [3] or [4] and
parameter 203 Reference/feedback range to [0]:
Ref
MIN
-Ref
(par. 204-205)
MAX
✭ 000,000.000
Par. 013 Lo cal control must be set to [3] or [4] and
parameter 203 Reference/feedback range to [1]:
-Ref
MAX
-+Ref
(par. 204-205)
MAX
✭ 000,000.000
Function:
In this parameter, the local reference can be set
manually. The unit of the local reference depends on the
configuration selected in parameter 100 Configuration.
Description of choice:
In order to protect the local reference, parameter
002 Local/remote operation must be set to
Local operation [1]. Local reference cannot be
set via serial communication.
Programming
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
004 Active Setup
(ACTIVE SETUP)
Value:
Factory Setup (FACTORY SETUP)
✭setup 1 (SETUP 1)
setup 2 (SETUP 2)
Setup 3 (SETUP 3)
setup 4 (SETUP 4)
Multi Setup (MULTI SETUP)
Function:
The active parameter Setup is selected here. All
parameters can be programmed in four individual
parameter Setups. Shifts between Setups can
be made in this parameter via a digital input
or via serial communication.
Description of choice:
Factory Setup [0] contains the factory-set parameter
values. Setup 1-4 [1]-[4] are four individual
Setups which can be selected as required. Multi
Setup [5] is used where remote-controlled shifts
betweenthefourSetupsviaadigitalinputorvia
serial communication is required.
[0]
[1]
[2]
[3]
[4]
[5]
NOTE
If data is modified or copied to the active
Setup, the modifications have an immediate
effect on the unit’soperation.
006 Setup copying
(SETUP COPY)
Value:
✭No copying (NO COPY)
Copy to Setup 1 from #
(COPY TO SETUP 1)
Copy to Setup 2 from #
(COPY TO SETUP 2)
Copy to Setup 3 from #
(COPY TO SETUP 3)
Copy to Setup 4 from #
(COPY TO SETUP 4)
Copy to all Setups from # (COPY TO ALL)
Function:
You can copy from the selected active Setup in
parameter 005 Programming setup to the selected
Setup or Setups in this parameter.
[0]
[1]
[2]
[3]
[4]
[5]
NOTE
005 Programming Setup
(EDIT SETUP)
Value:
Factory Setup (FACTORY SETUP)
Setup 1 (SETUP 1)
Setup 2 (SETUP 2)
Setup 3 (SETUP 3)
Setup 4 (SETUP 4)
✭Active Setup (ACTIVE SETUP)
Function:
You can select which Setup you want to program
during operation (applies both via the control panel
and the serial communication port). It is, for example,
possible to program Setup 2 [2], while the active Setup
is set to Setup 1 [1] in parameter 004 Active Setup .
Description of choice:
Factory Setup [0] contains the factory-set data and can
be used as a source of data if the other Setups are to be
reset to a known status. Setup 1-4 [1]-[4] are individual
Setups that can be programmed freely during operation.
If Active Setup [5] is selected, the programming Setup
will be equal to parameter 004 Active Setup.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
[0]
[1]
[2]
[3]
[4]
[5]
Copying is only possible in Stop (motor stopped
in connection with a stop command).
Description of choice:
Copying begins when the required copying function
has been selected and the [OK]/[CHANGE DATA]
key has been pushed. The display indicates
when copying is in progress.
007 LCP copy
(LCP COPY)
Value:
✭No copying (NO COPY)
Upload all parameters (UPL. ALL PAR.)
Download all parameters (DWNL. ALL PAR.)
Download size-independent parameters
(DWNL.OUTPIND.PAR.)
Function:
Parameter 007 LCP copy is used if you want to use
the LCP 2 control panel’s integral copy function. The
function is used if you want to copy all parameter
[0]
[1]
[2]
[3]
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VLT® 2800 Series
setups from one variable frequency drive to another
by moving the LCP 2 control panel.
Description of choice:
Select Upload all parameters [1] if you want all
parameter values to be transferred to the control panel.
Select Download all parameters [2] if all parameter
values transferred are to be copied to the frequency
converter to which the control panel is attached. Select
Download size-independent par. [3] if you only want
to downloade the size-independent parameters. This
is used when downloading to a variable frequency
drive with a different rated power size than that from
which the parameter setup originates.
NOTE
Upload/download can only be performed
in stop mode. Download can o
performed to a frequency converter with
the same software version number, see parameter
626 Database identification no.
008 Display scaling of output frequency
(FREQUENCY SCALE)
Value:
0.01 - 100.00
Function:
In this parameter, the factor is selected by which the
output frequency is to be multiplied. The value is shown
in the display, provided parameters 009-012 Displ
readout have been set to Output frequency x scaling [5].
Description of choice:
Set the required scaling factor.
009 Large display readout
(DISPLAY LINE 2)
Value:
No readout (NONE)
Resulting reference [%]
(REFERENCE %)
Resulting reference [unit]
(REFERENCE [UNIT])
Feedback [unit] (FEEDBACK [UNIT])
✭Frequency [Hz] (FREQUENCY [HZ])
Output frequency x scaling
(FREQUENCY X SCALE)
nly be
✭ 1.00
ay
[0]
[1]
[2]
[3]
[4]
[5]
Motor current [A] (MOTOR CURRENT [A])
Torque [%] (TORQUE [%])
Power[kW] (POWER[KW])
Power [HP] (POWER [HP][US])
Motor voltage [V]
(MOTOR VOLTAGE [V])
DC link voltage [V]
(DC LINK VOLTAGE [V])
Thermal load motor [%]
(MOTOR THERMAL [%])
Thermal load [%]
(FC. THERMAL[%])
Running hours [Hours]
(RUNNING HOURS])
Digital input [Bin]
(DIGITAL INPUT[BIN])
analog input 53 [V]
(ANALOG INPUT 53 [V])
Analog input 60 [mA]
(ANALOG INPUT 60 [MA])
Pulse reference [Hz]
(PULSE REF. [HZ])
External reference [%]
(EXTERNAL REF. [%])
Status word [Hex] (STATUS WORD [HEX])
Heatsink temperature [°C]
(HEATSINK TEMP [°C])
Alarm word [Hex] (ALARM WORD [HEX])
Control word [Hex] (CONTROL WORD [HEX])
Warning word [Hex]
(WARNING WORD [HEX])
Extended status word [Hex]
(EXT. STATUS [HEX])
Communication option card warning
(COMM OPT WARN [HEX])
Pulse count
(PULSE COUNTER)
Function:
In this parameter you can select the data value that
you wish to display in the LCP control unit display
line 2 when the variable frequency drive is switched
on. The display will also be included in the scrollbar
in display mode. In parameters 010-012 Display
readout you can select a further three data values,
which are displayed in display line 1.
Description of choice:
No readout can only be selected in parameters
010-012 Small display readout.
[6]
[7]
[8]
[9]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[19]
[20]
[21]
[22]
[25]
[26]
[27]
[28]
[29]
[30]
[31]
Programming
= factory setting. () = display text [] = value for use in communication via serial communication port
✭
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VLT® 2800 Series
Resulting reference [%] gives, as a percentage,
the resulting reference in the range from Minimum
reference, Ref
to Maximum reference, Ref
MIN
MAX
.
Reference [unit] gives the resulting reference with unit
Hz in Open loop.InClosed loop the reference unit
is selected in parameter 416 Process units.
Feedback [unit] gives the resulting signal value
using the unit/scaling selected in parameter 414
Minimum feedback, FB
FB
and 416 Process units.
HIGH
, 415 Maximum feedback,
LOW
Frequency [Hz] gives the output frequency of
the variable frequency drive.
Output frequency x scaling [-] equals the present output
frequency f
multiplied by the factor set in parameter
M
008 Display scaling of output frequency .
Motor current [A] givesthephasecurrentofthe
motor measured as an effective value.
Torq u e [% ] denotes the motor’s present load in
relation to the motor’s rated torque.
Power [kW] gives the present power that the
motor is absorbing in kW.
Power [HP] gives the present power that the
motor is absorbing in HP.
Analog input 60 [mA] gives the present value
of terminal 60.
Pulse reference [Hz] givesthereferenceinHz
connected to terminal 33.
External reference [%] gives the sum of external
references as a percentage (sum of analog/pulse/serial
communication) in the range from Minimum reference,
Ref
to Maximum reference, Ref
MIN
MAX
.
Status word [Hex] gives one or several status
conditions in a Hex code. See Serial communication
in the Design Guide for further information.
Heatsink temp.[°C] gives the present heatsink
temperature of the variable frequency drive. The
cut-out limit is 195-212 °F (90-100°C), while cutting
back in occurs at 160 ± 5% (70 ± 5°C).
Alarm word [Hex] gives one or several alarms
in hex code. See Serial communication in the
Design Guide for further information.
Control word [Hex] gives the control word for the
variable frequency drive. See Serial communication
in the Design Guide for further information.
Warning word [Hex] gives one or several warnings
in hex code. See Serial communication in the
Design Guide for further information.
Motor voltage[V] gives the voltage supplied to the motor.
DC link voltage [V] gives the intermediate circuit
voltage of the variable frequency drive.
Thermal load motor [%] gives the calculated/estimated
load on the motor. 100% is the cut-out limit.
Extended status word [Hex] gives one or several status
modes in Hex code. See Serial communication in
the Design Guide for further information.
Communication option card warning [Hex] gives a
warning word if there is a fault in the communication
bus. Only active if communication options are installed.
Thermal load [%] gives the calculated/estimated
thermal load on the variable frequency drive.
If there are no communication options 0
Hex is displayed.
100% is the cut-out limit.
Pulse count gives the number of pulses that
Running hours [Hours] gives the number of hours that
the unit has registered.
the motor has tun since the last reset in parameter
619 Reset of running hours counter.
Digital input [Binary code] gives the signal status
from the 5 digital inputs (18, 19, 27, 29 and 33).
Terminal 18 corresponds to the bit on the extreme
left. ‘0’ = no signal, ‘1’ = signal connected.
Analog input 53 [V] gives the voltage value of terminal 53.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
010 Small display line 1.1
(DISPLAY LINE 1.1)
Value:
See par. 009 Large display readout
✭ Reference [%] [1]
Function:
In this parameter, the first of three data values
can be selected that is to be displayed in the LCP
control unit display, line 1, position 1. This is a useful
function, e.g. when setting the PID regulator, as
it gives a view of process reactions to reference
changes. The display readout is activated by
pushing the [DISPLAY STATUS] key.
Description of choice:
See parameter 009 Large display readout.
011 Small display readout 1.2
(DISPLAY LINE 1.2)
Value:
See parameter 009 Large display readout
✭ Motor current [A][6]
Function:
See the functional description given under parameter
010 Small display readout.
013 Local control
(LOC CTRL/CONFIG.)
Value:
Local not active (DISABLE)
Local control and open loop
(LOC CTRL/OPEN LOOP)
Remote-operated control and open loop
(LOC+DIG CTRL)
Local control as parameter 100
(LOC CTRL/AS P100)
✭Remote-operated control as parameter 100
(LOC+DIG CTRL/AS P100)
Function:
This is where the required function is selected if,
in parameter 002 Local/remote operation, Local
operation [1] has been chosen.
Description of choice:
If Local not active [0] is selected, it is not possible to
set a reference via parameter 003 Local reference.
In order to enable a shift to Local not active [0],
parameter 002 Local/remote operation must be
set to Remote operation [0].
Local control and op en loop [1] is used if the motor
speed is to be set via parameter 003 Local reference.
When this choice is made, parameter 100 Configuration
automatically shifts to Speed regulation, open loop [0].
[0]
[1]
[2]
[3]
[4]
Description of choice:
See parameter 009 Large display readout.
012 Small display readout 1.3
(DISPLAY LINE 1.3)
Value:
See parameter 009 Large display readout
✭ Power [kW][8]
Function:
See the functional description given under parameter
010 Small display readout.
Description of choice:
See parameter 009 Large display readout.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
Remote-operated control and open loop [2] functions
in the same way as Local control and open loop
[1]; however, the variable frequency drive can also
be controlled via the digital inputs.
Local control as parameter 100 [3] is used when the
motor speed is to be set via parameter 003 Local
reference,butw
automatically shifting to Speed regulation, open loop [0].
Remote-operated control as parameter 100 [4]
works the same way as Local control as parameter
100 [3]; however, the variable frequency drive can
also be controlled via the digital inputs.
Shifting from Remote operation to Local operation
in parameter 002 Local/remote operation,whileth
parameter has been set to Remote-operated control
and open loop [1]: The present motor frequency and
direction of rotation will be maintained. If th
direction of rotation does not respond to the reverse
signal (negative reference), the reference will be set to 0.
ithout parameter 100 Configuration
Programming
is
e present
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VLT® 2800 Series
Shifting from Local operation to Remote operation
in parameter 002 Local/remote control,while
this parameter has been set to Remote-operated
control and open loop [1]: The configuration
selected in parameter 100 Configuration will be
active. The shift will be smooth.
Shifting from Remote control to Local control in
parameter 002 Local/remote operation, while this
parameter has been set to Remote-operated control
as parameter 100 [4]: the present reference will
be maintained. If the reference signal is negative,
the local reference will be set to 0.
Shifting from Local operation to Remote operation
in parameter 002 Local/remote operation,while
this parameter has been set to Remote operation:
The local reference will be replaced by the
remote-operated reference signal.
014 Local stop
(LOCAL STOP)
Value:
Not active (DISABLE)
✭Active (ENABLE)
Function:
In this parameter, the local [STOP]-key can be
engaged or disengaged on the control panel
and on the LCP control panel.
[0]
[1]
Description of choice:
If Not active [0] is selected in this parameter,
the [JOG]-key will be inactive.
016 Local reverse
(LOCAL REVERSE)
Value:
✭Not active (DISABLE)
Active (ENABLE)
Function:
In this parameter you can select/deselect the reverse
function on the LCP control panel. The key can only
be used if parameter 002 Local/remote operation
is set to Local operation [1] and parameter 013
Localcontrol to Local control, open loop [1] or
Local control as parameter 100 [3].
Description of choice:
If Disab le [0] is selected in this parameter, the
[FWD/REV] key will be disabled. See also parameter
200 Output frequency range.
017 Local reset of trip
(LOCAL RESET)
Value:
Not active (DISABLE)
✭Active (ENABLE)
[0]
[1]
[0]
[1]
Description of choice:
If Not active [0] is selected in this parameter,
the [STOP]-key will be inactive.
NOTE
If Not active [0] is selected, the motor cannot
be stopped by means of the [STOP]-key.
015 Local jog
(LOCAL JOGGING)
Value:
✭Not active (DISABLE)
Active (ENABLE)
Function:
In this parameter, the jog function on the LCP control
panel can be engaged/disengaged.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
36
[0]
[1]
Function:
In this parameter, the reset function on the control
panel can be engaged/disengaged.
Description of choice:
If Not active [0] is selected in this parameter, the
reset function will be inactive.
NOTE
Select Not active [0], only if an external reset
signal has been connected via the digital inputs.
018 Lock for data changes
(DATA CHANGE LOCK)
Value:
✭Not locked (NOT LOCKED)
Locked (LOCKED)
MG.28.A8.22 - VLT is a registered Danfoss trademark
[0]
[1]
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VLT® 2800 Series
Function:
In this parameter, it is possible to ’lock’ the controls
to disable data changes via the control keys.
Description of choice:
If Locked [1] is selected, data changes in the
parameters cannot be made; however, it will
still be possible to make data changes via serial
communication. Parameter 009-012 Display readout
can be changed via the control panel.
019 Operating mode at power-up, local
operation
(POWER UP ACTION)
Value:
Auto restart, use saved reference
(AUTO RESTART)
✭Forced stop, use saved reference
(LOCAL=STOP)
Forced stop, set ref. to 0
(LOCAL=STOP, REF=0)
[0]
[1]
[2]
NOTE
In remote operation (parameter 002
Local/remote operation) the start/stop state at
the time of electrical connection will depend
on the external control signals. If Pulse start [8] is
selected in parameter 302 Digital input,themotorwill
remain stopped after electrical connection.
020 Hand operation
(HAND OPERATION)
Value:
✭Not active (DISABLE)
Active (ENABLE)
Function:
In this parameter you can select whether it should be
possible or not to switch between Auto- and Hand
mode. In Auto mode the variable frequency drive is
controlled by external signals whereas the variable
frequency drive in Hand mode is controlled via a local
reference directly from the control unit.
[0]
[1]
Function:
Setting of the required operating mode when the
electrical voltage is engaged This function can only
be active if Local operation [1] has been selected in
parameter 002 Local/remote operation.
Description of choice:
Auto restart, use saved ref. [0] is selected if the variable
frequency drive is to start using the local reference (set
in parameter 003 Local reference) and the start/stop
state given via the control keys immediately prior
to the electrical voltage being cut out.
Forced stop, use saved ref. [1] is selected if the variable
frequency drive is to remain stopped when the electrical
voltage is engaged, until the [START]-key is activated.
After a start command the motor speed is ramped up to
the saved reference in parameter 003 Local reference.
Forced stop, set ref. to 0 [2] is selected if the
variable frequency drive is to remain stopped when
the electrical voltage is cut back in. Parameter
003 Local reference is to be zeroed.
Description of choice:
If Not active [0] is selected in this parameter, the Hand
mode function will be inactive. If Active [1] is selected
you can switch between Auto- and Hand mode. For
further information, see the Control Unit section.
024 User-defined Quick Menu
(USER QUICK MENU)
Value:
✭Not active (DISABLE)
Active (ENABLE)
Function:
In this parameter you can select the standard
setup of the Quick menu key on the control panel
and the LCP 2 control panel.
Using this function, in parameter 025 Quick Menu
setup the user can select up to 20 parameters
for the Quick Menu key.
Description of choice:
If not active [0] is selected, the standard setup
of the Quick Menu key is active.
Programming
[0]
[1]
= factory setting. () = display text [] = value for use in communication via serial communication port
✭
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If Active [1] is selected, the user-defined
Quick Menu is active.
025 Quick Menu setup
(QUICK MENU SETUP)
Value:
[Index 1 - 20] Value: 0 - 999
Function:
In this parameter you define which parameters are
required in the Quick Menu when parameter 024
User-defined Quick Menu is set to Active [1]´.
Up to 20 parameters can be selected for the
user-defined Quick Menu.
NOTE
Please note that this parameter can only be set
using an LCP 2 control panel. See Order form.
✭ 000
VLT® 2800 Series
Description of choice:
The Quick Menu is set up as follows:
1. Select parameter 025 Quick Menu setup
and press [CHANGE DATA].
2. Index 1 indicates the first parameter in Quick
Menu. You can scroll between the index numbers
using the [+ / -] keys. Select Index 1.
3. Using [< >] you can scroll between the
three figures. Press the [<] key once ad
the last number in the parameter number
can be selected using the [+ / -] keys.
Set Index 1 to 100 for parameter 100 Configuration.
4. Press [OK] when Index 1 has been set to 100.
5. Repeat steps 2 - 4 until all parameters required
have been set to the Quick Menu key.
6. Press [OK] to complete the Quick Menu setup.
If parameter 100 Configuration is selected at Index
1, Quick Menu will start with this parameter every
time Quick Menu is activated.
Please note that parameter 024 User-defined Quick
Menu and parameter 025 Quick Menu setup are reset
to the factory setting during initialisation.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
■Load and Motor
100 Configuration
(CONFIGURATION)
Value:
✭Speed control, open loop
(SPEED OPEN LOOP)
Speed control, closed loop
(SPEED CLOSED LOOP)
Process control, closed loop
(PROCESS CLOSED LOOP)
Function:
This parameter is used to select the configuration
to which the variable frequency drive is to be
adapted. This makes adaptation to a given application
simple, since the parameters not used in a given
configuration are hidden (not active).
Description of choice:
If Speed control, open loop [0] is selected, normal
speed control is obtained (without feedback
signal) with automatic load and slip compensation
to ensure a constant speed at varying loads.
Compensations are active, but may be disabled in
parameter 134 Load compensation and parameter
136 Slip compensation as required.
[0]
[1]
[3]
101 Torque characteristic
(TORQUE CHARACT)
Value:
✭Constant torque
(CONSTANT TORQUE)
Variable torque low
(TORQUE: LOW)
Variable torque medium
(TORQUE: MED)
Variable torque high
(TORQUE: HIGH)
Variable torque low with CT start
(VT LOW CT START)
Variable torque medium with CT start
(VT MED CT START)
Variable torque high with CT start
(VT HIGH CT START)
Special motor mode
(SPECIAL MOTOR MODE)
CT = Constant torque
Function:
This parameter enables a choice of principle
for adaptation of the U/f ratio of the variable
frequency drive to the torque characteristic of
the load. See par. 135 U/f ratio.
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
If Speed con trol, closed loop [1] is selected, better
speed accuracy is obtained. A feedback signal must
be added, and the PID regulator must be set in
parameter group 400 Special functions.
If Process control, closed loop [3] is selected, the
internal process regulator is activated to enable precise
control of a process in relation to a given process
signal. The process signal can be set to the relevant
process unit or as a percentage. A feedback signal
must be added from the process and the process
regulator must be set in parameter group 400 Special
functions. Process closed loop is not active if a
DeviceNet card is mounted and Instance 20/70 or
21/71 is chosen in parameter 904 Instance types.
Description of choice:
If Constant torque [1] is selected, a load-dependent U/f
characteristic is obtained, in which output voltage and
output frequency are increased at increasing loads in
order to maintain constant magnetization of the motor.
Select Variable torque low [2], Variable torque
medium [3] or Variable torque high [4], if the load
is square (centrifugal pumps, fans).
Variable torque - low with CT start [5], - medium with
CT start [6] or high with CT start [7], are selected if
you need a greater breakaway torque than can be
achieved with the three first characteristics.
NOTE
Load and slip compensation are not active
if variable torque or special motor mode
have been selected.
Programming
= factory setting. () = display text [] = value for use in communication via serial communication port
✭
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Select Special motor mode [8], if a special U/f setting
is needed that is to be adapted to the present
motor. The break points are set in parameters
423-428 Voltage/frequency .
NOTE
If a value set in the name-plate parameters
102-106 is changed, parameters 108 Stator
resistance and 109 Stator reactance change
automatically. Enter motor name plate data in
sequence from parameter 102 to 106. The relationship
between values are interdependent.
102 Motor power P
M,N
(MOTOR POWER)
Value:
0.25 - 22 kW
✭ Depends on unit
Function:
Here you must set a power value [kW] P
M,N
,
corresponding to the motor’s rated power.
Description of choice:
Set a value that matches the nameplate data on the
motor. Settings between one size below and one
size over the factory setting are possible.
VLT® 2800 Series
North American HP to kW
Conversion Chart
HP kW
1/2 0.37
3/4 0.55
1 0.75
11/2 1.1
2 1.5
3 2.2
4 3.0
5 4
71/2 5.5
10 7.5
103 Motor voltage U
(MOTOR VOLTAGE)
Value:
For 200 V units: 50 - 999 V
For 400 V units: 50 - 999 V
Function:
This is where to set the rated motor voltage.
Description of choice:
Select a value that corresponds to the nameplate
data on the motor, regardless of the adjustable
frequency drive’sAClinevoltage.
104 Motor frequency f
(MOTOR FREQUENCY)
Value:
24-1000 Hz
Function:
This is where to select the rated motor frequency f
M,N
✭ 230 V
✭ 400 V
M,N
✭ 50 Hz
M,N
.
Description of choice:
Select a value that corresponds to the nameplate
data on the motor.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
105 Motor current I
M,N
(MOTOR CURRENT)
Value:
0,01 - I
MAX
✭ Depends on choice of motor
Function:
The nominal, rated current of the motor I
forms part
M,N
of the variable frequency drive calculation of features
such as torque and motor thermal protection.
Description of choice:
Set a value that corresponds to the nameplate data
on the motor. Set the motor current I
M,N
taking
into account whether the motor is star-connected
Y or delta-connected
.
106 Rated motor speed
(MOTOR NOM. SPEED)
Value:
100 - f
x 60 (max. 60000 rpm)
M,N
✭ Depends on parameter 102 Motor power, P
Function:
This is where to set the value that corresponds
to the rated motor speed n
that can be seen
M,N
from the nameplate data.
M,N
- For AMT to define the motor parameters
acccurately, the correct nameplate data for the
motor connected to the adjustable frequency drive
must be keyed into parameters 102 to 106.
- Alarms will appear in the display if faults arise
during tuning of the motor. See Warnings/alarms
messages in this manual.
- As a rule, the AMT function can measure the R
S
values for motors that are 1-2 sizes larger or smaller
than the adjustable frequency drive’s nominal size.
- If you wish to interrupt automatic motor tuning,
press the [STOP/RESET] key.
NOTE
AMT may not be performed on motors
connected in parallel, nor may setup changes
be made while AMT is running.
See Automatic motor tuning in this manual
for the AMT procedure.
Description of choice:
Select Optimization on [2] as part of the AMT
procedure if you want the adjustable frequency drive
to perform automatic motor tuning.
Description of choice:
Select a value that corresponds to the nameplate
data on the motor.
NOTE
The max. value equals f
M,N
x 60. f
in parameter 104 Motor frequency, f
M,N
M,N
to be set
.
107 Automatic motor tuning, AMT
(AUTO MOTOR TUN.)
Value:
✭Optimisation off (AMT OFF)
Optimisation on (AMT START)
Function:
NOTE
AMT is not possible on VLT 2880-82.
[0]
[2]
108 Stator resistance R
S
(STATOR RESISTAN)
Value:
0.000 - X.XXX
✭ Depends on choice of motor
Function:
After setting of parameters 102-106 Nameplate data,
a number of adjustments of various parameters is
carried out automatically, including stator resistance
R
. A manually entered RSmust apply to a cold
S
motor. The shaft performance can be improv
fine-tuning R
and XS, see procedure below.
S
ed by
NOTE
Parameters 108 Stator resistance R
Stator reactance X
are normally not to be
S
and 109
S
changed if nameplate data has been set.
Description of choice:
can be set as follows:
R
S
Programming
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
1. Use the factory settings of RSwhich the adjustable
frequency drive itself chooses on the basis
of the motor nameplate data.
2. The value is stated by the motor supplier.
3. The value is obtained through manual
measurements: R
the resistance R
terminals. Where R
can be calculated by measuring
S
PHASE-PHASE
PHASE-PHASE
between two phase
is lower than 1-2
Ohms (typical for motors > 7.5 HP, 400 V), a special
Ohm-meter should be used (Thomson-bridge or
similar). R
4. R
is set automatically when AMT has been
S
=0.5xR
S
PHASE-PHASE
.
completed. See parameter 107 Auto motor tuning.
109 Stator reactance X
S
(STATOR REACTANCE)
Value:
0.00 - X,XX
✭ Depends on choice of motor
Function:
After setting of parameters 102-106 Nameplate data,
a number of adjustments of various parameters
are made automatically, including stator reactance
X
. The shaft performance can be improved by
S
fine-tuning R
and XS, see procedure below.
S
Function:
It is possible to optimize the resonance damping
in CT mode. The grade of the influence is
adjusted in this parameter.
The value may be set between 0% (OFF) and 100%.
100% corresponds to 50% reduction of U/F ratio.
Default value is OFF.
Internal settings (fixed):
The resonance filter is active from 10% of
nominal speed and above.
In this case 5Hz and above.
Speed to go from 0 to nominal flux level: 500ms
Speed to go from nominal to 0 flux level: 500 ms
Description of functionality:
The filter monitors the active motor current and
changes the motor voltage according to the
figure below. The filter reacts on levels referring
to the nominal motor current.
Description of choice:
can be set as follows:
X
S
1. The value is stated by the motor supplier.
2. The value is obtained through manual measurements
X
is obtained by connecting a motor to electrical
S
current and measuring the phase-phase voltage
and the idle current .
U
M
3. Use the factory settings of XSwhich the variable
frequency drive itself chooses on the basis
of the motor nameplate data.
117 Resonance damping
(RESONANCE DAMPING)
Value:
OFF 100
✭Off
[OFF 100]
[OFF]
If the active motor current is below 10%, the motor
voltage will be decreased by the speed mentioned
above until the voltage reaches the setting for Par. 117.
If the active motor current comes over 20% the voltage
will be increased by the above-mentioned speed. If the
active motor current reaches 40% the motor voltage
will be increased immediately to normal motor voltage.
The reduction in motor voltage depends on
the parameter 117 setting.
Description of choice:
Set the grade of Motor current [Imact] influence
on the U/F ratio between 0% (OFF) and 100%.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
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100% corresponds to 50% reduction of U/F
ratio. Default value is OFF.
119 High start torque
(HIGH START TORQ.)
Value:
0.0 - 0.5 sec.
✭ 0.0 sec.
Function:
To ensure a high start torque approx. 1.8 x I
INV.
can be
permitted for max. 0.5 sec. The current is, however,
limited by the variable frequency drive’s(inverter’s)
safety limit. 0 sec. corresponds to no high start torque.
Description of choice:
Set the necessary time for which a high start
torque is required.
120 Start delay
(START DELAY)
Value:
0.0 - 10.0 sec.
✭ 0.0 sec.
Function:
This parameter enables a delay of the start-up time
after the conditions for start have been fulfilled.
When the time has passed, the output frequency
will start by ramping up to the reference.
Description of choice:
Set the necessary time before commencing
to accelerate.
121 Start function
(START FUNCTION)
Value:
DC hold during start delay time
(DC HOLD/DELAY TIME)
DC brake during start delay time
(DC BRAKE/DELAY TIME)
✭Coasting during start delay time
(COAST/DELAY TIME)
Start frequency/voltage clockwise
(CLOCKWISE OPERATION)
Start frequency/voltage in reference direction
(VERTICAL OPERATION)
[0]
[1]
[2]
[3]
[4]
Function:
This is where to choose the required mode during the
start delay time (parameter 120 Start delay time).
Description of choice:
Select DC hold during start delay time [0] to energize
the motor with a DC hold voltage during the start delay
time. Set voltage in parameter 137 DC hold voltage.
Choose DC brake during start delay time [1] to energize
the motor with a DC brake voltage during the start delay
time. Set voltage in parameter 132 DC brake voltage.
Choose Coasting during start delay time [2] and the
motor will not be controlled by the variable frequency
drive during the start delay time (inverter turned off).
Choose Start frequency/voltage clockwise [3] to
obtain the function described in parameter 130
Start frequency and 131 Voltage at start during start
delay time. Regardless of the value assumed by
the reference signal, the output frequency equals
the setting in parameter 130 Start frequency and
the output voltage will correspond to the setting
in parameter 131 Voltage at start .
This functionality is typically used in hoist applications.
It is used in particular in applications in which a cone
anchor motor is applied, where the direction of rotation
is to start clockwise followed by the reference direction.
Select Start frequency/voltage in reference direction
[4] to obtain the function described in parameter
130 Start frequency and 131 Voltage at start
during the start delay time.
The direction of rotation of the motor will always
follow in the reference direction. If the reference signal
equals zero, the output frequency will equal 0 Hz,
while the output voltage will correspond to the setting
in parameter 131 Voltage at start. If the reference
signal is different from zero, the output frequency will
equal parameter 130 Start frequency and the output
voltage will equal parameter 131 Voltage at start.This
functionality is used typically for hoist applications with
counterweight. It is used in particular for applications
in which a cone anchor motor is applied. The cone
anchor moto r can break away using parameter 130
Start frequency and parameter 131 Voltage at start.
Programming
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
122 Function at stop
(FUNCTION AT STOP)
Value:
✭Coasting (COAST)
DC hold (DC HOLD)
Function:
This is where to choose the function of the variable
frequency drive after the output frequency has become
lower than the value in parameter 123 The min.
frequency for activation of function at stop or after
a stop command and when the output frequency
has been ramped down to 0 Hz.
Description of choice:
Select Coasting [0] if the variable frequency drive is
to ’let go’ of the motor (inverter turned off).
Select DC hold [1] if parameter 137 DC hold
voltage is to be activated.
123 Min. frequency for activation of
function at stop
(MIN.F.FUNC.STOP)
Value:
0,1 - 10 Hz
✭ 0,1 Hz
[0]
[1]
126 DC brake time
(DC BRAKING TIME)
Value:
0 - 60 sec.
✭ 10 sec
Function:
In this parameter, the DC brake time is set at which
parameter 132 DC brake voltage is to be active.
Description of choice:
Set the required time.
127 DC brake cut-in frequency
(DC BRAKE CUT-IN)
Value:
0.0 (OFF) - par. 202
Output frequency high limit, f
MAX
✭ OFF
Function:
In this parameter, the DC brake cut-in frequency
is set at which the DC brake is to be activated in
connection with a stop command.
Description of choice:
Set the required frequency.
Function:
In this parameter, the output frequency is set at
which the function selected in parameter 122
Function at stop is to be activated.
128 Thermal motor protection
(MOT.THERM PROTEC)
Value:
✭No protection (NO PROTECTION)
Description of choice:
Set the required output frequency.
Thermistor warning
(THERMISTOR WARN)
Thermistor trip (THERMISTOR TRIP)
NOTE
If parameter 123 is set higher than parameter
130, then the start delay function (parameter
120 and 121) will be skipped.
NOTE
If parameter 123 is set too high, and DC
hold has been chosen in parameter 122,
the output frequency will jump to the value
in parameter 123 without ramping up. This may
cause an overcurrent warning / alarm.
ETR warning 1 (ETR WARNING 1)
ETR trip 1 (ETR TRIP 1)
ETR warning 2 (ETR WARNING 2)
ETR trip 2 (ETR TRIP 2)
ETR warning 3 (ETR WARNING 3)
ETR trip 3 (ETR TRIP 3)
ETR warning 4 (ETR WARNING 4)
ETR trip 4 (ETR TRIP 4)
Function:
The adjustable frequency drive can monitor the
motor temperature in two different ways:
- Via a PTC thermistor that is mounted on the motor.
The thermistor is connected between terminal 50
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
44
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VLT® 2800 Series
(+10V) and one of the digital input terminals 18, 19,
27 or 29. See parameter 300 Digital inputs.
- Thermal load calculation (ETR - Electronic
Thermal Relay), based on present load and
You can also program the adjustable frequency drive
to give a warning signal via one of the digital outputs.
Select ETR Trip 1-4 if you want a trip when the motor
is overloaded according to the calculations.
time. This is compared with the rated motor
current I
and rated motor frequency f
M,N
M,N
.
The calculations take into account the need for
lower loading at low speeds due to the motor’s
NOTE
This function cannot protect the individual
motors in the case of motors linked in parallel.
internal ventilation being reduced.
130 Start frequency
(START FREQUENCY)
Value:
0.0-10.0Hz
Function:
Thestartfrequencyisactiveforthetimesetin
parameter 120 Start delay, after a start command.
The output frequency will ’jump’ to the next preset
frequency. Certain motors, such as conical anchor
motors, need an extra voltage/start frequency
(boost) at start to disengage the mechanical brake.
To achieve this parameters 130 Start frequency
ETR functions 1-4 do not begin to calculate the load
until you switch to the Setup in which they have been
selected. This means that you can use the ETR function
even when changing between two or more motors.
NOTE
The electronic thermal relay (ETR) in UL
listed VLTs provides Class 20 motor overload
protection in accordance with the NEC in
single motor applications when parameter 128
is set for "ETR TRIP" and parameter 105 Motor
current is set for rated motor current.
Description of choice:
and 131 Initial voltage are used.
Description of choice:
Set the required start frequency. It is a precondition
that parameter 121 Start function,issetto
Start frequency/voltage clockwise [3] or Start
frequency voltage in reference direction [4] and
that in parameter 120 Start delay atimeisset
and a reference signal is present.
NOTE
If parameter 123 is set higher than parameter
130, the start delay function (parameter
120 and 121) will be skipped.
Select No protection [0]ifyoudonotwantawarning
or trip when a motor is overloaded.
Select Thermistor warning [1] if you want a warning
when the connected thermistor becomes too warm.
Select Thermistor trip [2] if you want a trip when the
connected thermistor becomes too warm.
Select ETR WARNING if you want a warning when the
motor is overloaded according to the calculations.
You can also program the adjustable frequency drive
to give a warning signal via the digital output.
Select ETR Trip if you want a trip when the motor is
overloaded according to the calculations.
131 Initial voltage
(INITIAL VOLTAGE)
Value:
0.0 - 200.0 V
Function:
Initial voltage is active for the time set in parameter
120 Start delay , after a start command. This
parameter can be used for example for lifting/dropping
applications (conical anchor motors).
Select ETR warning 1-4 if you want a warning when
the motor is overloaded according to the calculations.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
✭ 0.0 Hz
Programming
✭ 0.0 V
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45
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VLT® 2800 Series
Description of choice:
Set the required voltage necessary to cut out the
mechanical brake. It is assumed that parameter
121 Start function, is set to Start frequency/voltage
clockwise [3] or Start frequency/voltage in reference
direction [4] and that in parameter 120 Start delay a
time is set, and that a reference signal is present.
132 DC brake voltage
(DC BRAKE VOLTAGE)
Value:
0 - 100% of max. DC brake voltage
Function:
In this parameter, the DC brake voltage is set which is
to be activated at stop when the DC brake frequency
set in parameter 127 DC brake cut-in frequency is
reached, or if DC braking inverse is active via a digital
input or via serial communication. Subsequently,
theDCbrakevoltagewillbeactiveforthetime
set in parameter 126 DC brake time.
✭ 0%
Description of choice:
The factory setting will be suitable for must
applications, the value may need to be increase
gradually for high torque application.
Warning: If the use of start voltage
is exaggerated, this may lead to
over-energizing and overheating of the
motor and the variable frequency drive may cut out.
134 Load compensation
(LOAD COMPENSATIO)
Value:
0.0 - 300.0%
Function:
In this parameter, the load characteristic is set. By
increasing the load compensation, the motor is given an
extra voltage and frequency supplement at increasing
loads. This is used e.g. in motors/applications in
which there is a big difference between the full-load
current and idle-load current of the motor.
✭ 100.0%
Description of choice:
To be set as a percentage value of the max. DC
brake voltage, which depends on the motor.
133 Start voltage
(START VOLTAGE)
Value:
0.00 - 100.00 V
Function:
A higher start torque can be obtained by increasing
the start voltage. Small motors (< 1.0 HP) normally
require a high start voltage.
✭ Depends on unit
NOTE
If this value is set too high, the variable frequency
drive may cut out because of overcurrent.
Description of choice:
If the factory setting is not adequate, load
compensation must be set to enable the motor
tostartatthegivenload.
Warning: Should be set to 0% in
connection with synchronous and
parallel-coupled motors and in the
case of quick load changes. Too high load
compensation may lead to instability.
135 U/f-ratio
(U/F RATIO)
Value:
0.00 - 20.00 at Hz
Function:
This parameter enables a linear shift in the ratio
between output voltage (V) and output frequency
(f) to ensure correct energizing of the motor and
✭ Depends on unit
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
46
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VLT® 2800 Series
thus optimum dynamics, accuracy and efficiency.
The V/f-ratio only affects the voltage characteristic if
Constant torque [1] has been selected in parameter
101 Torque characteristic .
Description of choice:
Change the V/f-ratio only if it is not possible to set
the correct motor data in parameters 102-109.
The value programmed in the factory settings
is based on idle operation.
136 Slip compensation
(SLIP COMP.)
Value:
-500 - +500% of rated slip compensation
✭ 100%
Function:
Slip compensation is calculated automatically, on
the basis of such data as the rated motor speed
n
. In this parameter, the slip compensation can be
M,N
fine-tuned, thereby compensating for tolerances on
the value for n
. Slip compensation is only active if
M,N
a selection has been made of Speedregulation, open
loop [0] in parameter 100 Configuration and Constant
torque [1] in parameter 101 Torque characteristic.
138 Brake cut out value
(BRAKE CUT OUT)
Value:
0.5 - 132.0/1000.0 Hz
✭ 3.0 Hz
Function:
Select the frequency at which the external brake is
released, via the output defined in parameter 323 Relay
output 1-3 or 341 Digital output, terminal 46.
Description of choice:
Set the required frequency.
139 Brake cut in frequency
(BRAKE CUT IN)
Value:
0.5 - 132.0/1000.0 Hz
✭ 3.0 Hz
Function:
Select the frequency at which the external brake
is activated; this takes place via the output
defined in parameter 323 Relay output 1-3 or
341 Digital output terminal 46.
Description of choice:
Set the required frequency.
Description of choice:
Key in a % value.
137 DC hold voltage
(DCHOLDVOLTAGE)
Value:
0 - 100% of max. DC hold voltage
✭ 0%
Function:
This parameter is used to keep the motor
(holding torque) at start/stop.
Description of choice:
This parameter can only be used if a selection has
been made of DC hold in parameter 121 Start
function or 122 Function at stop . To be set as
a percentage value of the max. DC hold voltage,
which depends on the choice of motor.
140 Current, minimum value
(CURRENT MIN VAL)
Value:
0 % of Inom - 100 % of Inom
✭ 0%
Function:
This is where the user selects the minimum motor
current running for the mechanical brake to be
released. Current monitoring is only active from stop
until the point when the brake is released.
Description of choice:
This is an extra safety precaution, aimed at
guaranteeing that the load is not lost during start
of a lifting/lowering operation.
Programming
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
142 Leakage reactance X
L
(LEAK. REACTANCE)
Value:
0.000 - XXX,XXX
✭ Depends on choice of motor
Function:
After setting of parameters 102-106 Nameplate data,
a number of adjustments of various parameter is
made automatically, including the leakage reactance
. The shaft performance can be improved by
X
L
fine-tuning the leakage reactance X
.
L
NOTE
Parameter 142 The leakage reactance X
is
L
normally not to be changed if the nameplate
data have been set, parameters 102-106.
Description of choice:
can be set as follows:
X
L
1. The value is stated by the motor supplier.
2. Use the factory settings of X
which the variable
L
frequency drive itself chooses on the basis
of the motor nameplate data.
143 Internal fan control
(FAN CONTROL)
Value:
✭Automatic (AUTOMATIC)
Always switched on (ALWAYS ON)
Always switched off (ALWAYS OFF)
[0]
[1]
[2]
NOTE
If Always switched off [2] is selected in
combination with high switch frequency,
long motor cables or high output power, the
adjustable frequency drive’s life span is reduced. This
applies in particular to 1.5, 2, 4 and 5 HP units.
144 Gain AC brake
(GAIN AC BRAKE)
Value:
1.00 - 1.50
✭ 1.30
Function:
This parameter is used to set the AC brake. Using par.
144 it is possible to adjust the size of the generator
torque that can be applied to the motor without the
intermediate circuit voltage exceeding the warning level.
Description of choice:
The value is increased if a greater possible brake
torque is required. If 1.0 is selected, this corresponds
to the AC brake being inactive.
NOTE
If the value in par. 144 is increased, the
motor current will simultaneously increase
significantly when generator loads are applied.
The parameter should therefore only be changed if
it is guaranteed during measurement that the motor
current in all operating situations will never exceed the
maximum permitted current in the motor. Please note:
that the current c
annot be read out from the display.
Function:
This parameter can be set so that the internal fan is
automatically switched on and off. You can also set the
internal fan to be permanently switched on or off.
146 Reset voltage vector
(RESET VECTOR)
Value:
Description of choice:
If Automatic [0] is selected, the internal fan is switched
*Off (OFF)
Reset (RESET)
on or off depending on the ambient temperature and
the loading of the adjustable frequency drive.
If Always switched on [1] or Always switched off
[2] is selected, the internal fan will be permanently
switched on or off, respectively.
Function:
When the voltage vector is reset it is set to the same
starting point each time a new process commences.
Description of choice:
Select reset (1) when running unique processes each
time they arise. This will enable repetitive precision
when stopping to be improved. Select Off (0) for
example for lifting/lowering operations or synchronous
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
48
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[0]
[1]
Page 50
motors. It is an advantage that the motor and the
variable frequency drive are always synchronized.
VLT® 2800 Series
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A8.22 - VLT is a registered Danfoss trademark
Programming
49
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VLT® 2800 Series
■References & Limits
200 Output frequency range
(OUT FREQ. RNG/ROT)
Value:
✭Only clockwise, 0 - 132 Hz
(132 HZ CLOCKWISE)
Both directions, 0 - 132 Hz
(132 HZ BOTH DIRECT)
Anti-clockwise only, 0 - 132 Hz
(132 HZ COUNTER CLOCK)
Clockwise only, 0 - 1000 Hz
(1000 HZ CLOCK WISE)
Both directions, 0 - 1000 Hz
(1000 HZ BOTH DIRECT)
Counter-clockwise only, 0 - 1000 Hz
(1000 HZ COUNTER CLOCK)
Function:
This parameter guarantees protection against
unwanted reverse. Furthermore, the maximum output
frequency can be selected that is to apply regardless
of the settings of other parameters. This parameter
has no function if Process regulation, closed loop has
been selected in parameter 100 Configuration.
Description of choice:
Select the required direction of rotation as well as
the maximum output frequency. Please note that if
Clockwise only [0]/[3] or Counter-clockwise only [2]/[5]
is selected, the output frequency will be limited to the
range f
MIN-fMAX
.IfBoth directions [1]/[4] is selected,
the output frequency will be limited to the range ± f
(the minimum frequency is of no significance).
MAX
[0]
[1]
[2]
[3]
[4]
[5]
201 Output frequency low limit, f
MIN
(MIN OUTPUT FREQ)
Value:
0.0 - f
MAX
✭ 0.0 Hz
Function:
In this parameter, a minimum motor frequency limit can
be selected that corresponds to the minimum speed
at which the motor is allowed to run. If Both directions
has been selected in parameter 200 Output frequency
range, the minimum frequency is of no significance.
Description of choice:
The value chosen can range from 0.0 Hz to
the frequency set in parameter 202 Output
frequency high limit, f
202 Output frequency high limit, f
MAX
.
MAX
(MAX. OUTPUT FREQ)
Value:
f
- 132/1000 Hz (par. 200 Output frequency range)
MIN
✭ 132 Hz
Function:
In this parameter, a maximum output frequency limit
can be selected that corresponds to the highest
speed at which the motor is allowed to run.
NOTE
The output frequency of the variable
frequency drive can never assume a value
higher than 1/10 of the switching frequency
(parameter 411 Switching frequency).
Description of choice:
A value can be selected from f
in parameter 200 Output frequency range.
203 Reference range
(REFERENCE RANGE)
Value:
✭Min. reference - Max reference (MIN - MAX)
-Max. reference - Max. reference
(-MAX - +MAX)
Function:
In this parameter you select whether the reference
signal must be positive or whether it can be both
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
50
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to the value chosen
MIN
[0]
[1]
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VLT® 2800 Series
positive and negative. The minimum limit may be a
negative value, unless in parameter 100 Configuration
a selection has been made of Speed regulation,
closed loop. You should select Min ref. - Max. ref.
[0], if Process regulation, closed loop [3] has been
selected in parameter 100 Configuration.
Description of choice:
Select the required range.
204 Minimum reference, Ref
MIN
(MIN.REFERENCE)
Value:
Par. 100 Config. = Open loop [0].
-100,000.000 - par. 205 Ref
MAX
✭ 0.000 Hz
Par. 100 Config. = Closed loop [1]/[3].
-Par. 414 Minimum feedback - par. 205 Ref
MAX
✭ 0.000 rpm/par 416
Function:
Minimum reference is an expression of the minimum
possible value of the total of all references. If in
parameter 100 Configuration, Speed regulation,
closed loop [1] or Process regulation, closed loop
[3] is selected, the minimum reference is limited by
parameter 414 Minimum feedback. Minimum reference
is ignored if the local reference is active.
The reference unit can be defined from the
following table:
Par. 100 Configuration Unit
Open loop [0] Hz
Speed reg, closed loop [1] rpm
Process reg, closed loop [3] Par. 416
Description of choice:
The minimum reference is preset if the motor
has to run at a minimum speed, regardless of
whether the resulting reference is 0.
205 Maximum reference, Ref
MAX
(MAX.REFERENCE)
Value:
Par. 100 Config. = Open loop [0].
Par. 204 Ref
- 1000.000 Hz
MIN
✭ 50.000 Hz
Par. 100 Config. = Closed loop [1]/[3].
Par. 204 Ref
- Par. 415 Max. feedback
MIN
✭ 50.000 rpm/par 416
Function:
The maximum reference gives the highest value that
can be assumed by the sum of all references. If Closed
loop [1]/[3] is selected in parameter 100 Configuration
the maximum reference cannot exceed the value
in parameter 415 Maximum feedback.
Maximum reference is ignored if the local
reference is active.
The reference unit can be defined from the
following table:
Par. 100 Configuration Unit
Open loop [0] Hz
Speed reg, closed loop [1] rpm
Process reg, closed loop [3] Par. 416
Description of choice:
Maximum reference is set, if the speed of the
motor is to be max. the set value, regardless
of the whether the resulting reference is greater
than the maximum reference.
206 Ramp type
(RAMP TYPE)
Value:
✭Linear (LINEAR)
Sine shaped (S-SHAPED)
2
Sine
shaped (S-SHAPED 2)
Programming
[0]
[1]
[2]
Function:
You can choose between a linear, a sine-shaped
and a sine
2
-shaped ramp process.
Description of choice:
Select the required ramp type depending on
requirementsfor the acceleration/deceleration process.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A8.22 - VLT is a registered Danfoss trademark
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207 Ramp-up time 1
(RAMP-UP TIME 1)
Value:
0.02 - 3600.00 sec
✭ 3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
Function:
The ramp-up time is the acceleration time from 0
Hz to the rated motor frequency f
104 Motor frequency, f
). It is assumed that the
M,N
(parameter
M,N
output current will not reach the current limit (set
in parameter 221 Current limit I
LIM
).
VLT® 2800 Series
208 Ramp-down time 1
(RAMPDOWNTIME1)
Value:
0.02 - 3600.00 sec
Function:
The ramp-down time is the deceleration time
from the rated motor frequency f
104 Motor frequency, f
no overvoltage arises in the inverter because of
generating operation of the motor.
Description of choice:
Set the required ramp-down time.
209 2 Ramp-up time
(2 RAMP-UP TIME)
Value:
0.02 - 3600.00 sec.
Function:
See description of parameter 207 Ramp-up time 1.
Description of choice:
Set the required ramp-up time. Shift from ramp 1 to
ramp 2 by activating Ramp 2 via a digital input.
✭ 3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
(parameter
M,N
)to0Hz,provided
M,N
✭ 3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
210 2 Ramp-down time
(RAMPDOWNTIME2)
Value:
0.02 - 3600.00 sec.
✭ 3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
Function:
Description of choice:
See description of parameter 208 Ramp-down time 1.
Set the required ramp-up time.
Description of choice:
Set the required ramp-down time. Shift from ramp 1 to
ramp 2 by activating Ramp 2 via a digital input.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
52
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VLT® 2800 Series
211 Jog ramp time
(JOG RAMP TIME)
Value:
0.02 - 3600.00 sec.
✭ 3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
Function:
The jog ramp time is the acceleration/deceleration
time from 0 Hz to the rated motor frequency f
(parameter 104 Motor frequency, f
). It is assumed
M,N
M,N
that the output current will not reach the current limit
(set in parameter 221 Current limit I
LIM
).
The jog ramp time starts if a jog-signal is given
via the LCP control panel, one of the digital inputs
or the serial communication port.
Description of choice:
Set the required ramp time.
212 Quick stop ramp-down time
(Q STOP RAMP TIME)
Value:
0.02 - 3600.00 sec.
✭ 3.00 sec (VLT 2803-2875)
10.00 sec (VLT 2880-2882)
Function:
The quick-stop ramp-down time is the deceleration
time from the rated motor frequency to 0 Hz, provided
no overvoltage arises in the inverter because of
generating operation of the motor, or if the generated
current exceeds the current limit in parameter 221
Current limit I
. Quick stop is activated via one of
LIM
the digital inputs or the serial communication.
Description of choice:
Set the required ramp-down time.
213 Jog frequency
(JOG FREQUENCY)
Value:
0.0 - Par. 202 Output frequency high limit, f
MAX
✭ 10.0 Hz
Function:
Jog frequency f
means a fixed output frequency
JOG
that the variable frequency drive supplies to the motor
when the Jog function is activated. Jog can be
activated via the digital inputs, serial communication
or via the LCP control panel, on the condition that
this is active in parameter 015 Local jog.
Description of choice:
Set the required frequency.
214 Reference function
(REF FUNCTION)
Value:
✭Sum (SUM)
Relative (RELATIVE)
External/preset (EXTERNAL/PRESET)
Function:
It is possible to define how preset references are to
be added to the other references; for this purpose,
use Sum or Relative. It is also possible by using the
External/preset to select whether a shift between
external references and preset references is required.
External reference is the sum of the analog
references, pulse references and any references
from serial communication.
Description of choice:
If Sum [0] is selected, one of the adjusted
preset references (parameters 215-218 Preset
reference) is summarized as a percentage of
the reference range (Ref
MIN
-Ref
), added to
MAX
the other external references.
If Relative [1] is selected, one of the added preset
references (parameters 215-218 Preset reference)
is summarized as a percentage of the sum of
present external references.
If External/preset [2] is selected, it is possible via
a digital input to shift between external references
or preset references. Preset references will be a
percentage value of the reference range.
[0]
[1]
[2]
Programming
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
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53
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VLT® 2800 Series
NOTE
If Sum or Relative is selected, one of the
preset references will always be active. If the
preset references are to be without influence,
they must be set to 0% (factory setting).
215 Preset reference 1 (PRESET REF. 1)
216 Preset reference 2 (PRESET REF. 2)
217 Preset reference 3 (PRESET REF. 3)
218 Preset reference 4 (PRESET REF. 4)
Value:
-100.00% - +100.00%
✭ 0.00%
of the reference range/external reference
Function:
Four different preset references can be programmed
in parameters 215-218 Preset reference.
The preset reference is stated as a percentage of the
reference range (Ref
MIN
-Ref
)orasapercentage
MAX
of the other external references, depending on the
choice made in parameter 214 Ref e rence function.
The choice between preset references can be made
via the digital inputs or via serial communication.
Preset ref., msb Preset ref. lsb
0 0 Preset ref. 1
0 1 Preset ref. 2
1 0 Preset ref. 3
1 1 Preset ref. 4
Description of choice:
If Catch up is active via a digital input, the percentage
value in parameter 219 Catch up/Slow down ref erence
will be added to the remote-controlled reference.
If Slow down is active via a digital input, the percentage
value in parameter 219 Catch up/Slow down ref erence
will be deducted from the remote-controlled reference.
221 Current limit, I
LIM
(CURRENT LIMIT)
Value:
0 - XXX.X % of par. 105
✭ 160 %
Function:
In this parameter, the maximum output current I
LIM
is
set. The factory-set value corresponds to the maximum
output current I
. If the current limit is to be used
MAX
as motor protection, set the rated motor current. f
the current limit is set above 100% (the rated output
current of the variable frequency drive, I
), the variable
INV.
frequency drive can only handle a load intermittently,
i.e. for short periods at a time. After the load has been
higher than I
load is lower than I
limit is set at a lower value than I
, it must be ensured that for a period the
INV.
. Please note that if the current
INV
, the acceleration
INV.
torque will be reduced to the same extent.
Description of choice:
Set the required maximum output current I
LIM
.
Description of choice:
Set the preset reference
(s) that is/are to be the options.
223 Warning: Low current, I
(WARN. CURRENT LO)
219 Catch up/ Slow down r
eference
(CATCH UP/SLW DWN)
Value:
0.00 - 100% of the given reference
✭ 0.00%
Function:
In this parameter, the percentage value can be set
which will either be added to or deducted from
the remote-controlled references.
The remote-controlled reference is the sum of preset
references, analog references, pulse reference and
any references from serial communication.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
54
Value:
0.0 - par. 224 Warning: High current, I
Function:
If the output current falls below the preset limit
I
a warning is given.
LOW
Parameters 223-228 Warning functions are out of
function during ramp-up after a start command and
after a stop command or during stop. The warning
functions are activated when the output frequency
reaches the resulting reference. The signal outputs
can be programmed to give a warning signal via
terminal 46 and via the relay output.
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LOW
HIGH
✭ 0.0 A
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VLT® 2800 Series
Description of choice:
The lower signal limit of the output current
must be programmed within the normal
I
LOW
working range of the unit.
224 Warning: High current, I
HIGH
(WARN. CURRENT HI)
Value:
0-I
MAX
✭ I
MAX
225 Warning: Low frequency, f
LOW
(WARN.FREQ. LOW)
Value:
0.0 - par. 226
Warn.: High frequency, f
HIGH
✭ 0.0 Hz
Function:
If the output frequency falls below the preset
limit f
, a warning is given.
LOW
Parameters 223-228 Warning functions are out of
function during ramp-up after a start command and
after stop command or during stop. The warning
functions are activated when the output frequency
has reached the resulting reference. The signal
outputs can be programmed to give a warning signal
via terminal 46 and via the relay output.
Description of choice:
The lower signal limit of the output frequency f
LOW
must be programmed within the normal operating
range of the variable frequency drive. See drawing
at parameter 223 Warning: Low current, I
LOW
.
Function:
If the output current exceeds the preset limit
I
a warning is given.
HIGH
Parameters 223-228 Warning functions do not
work during ramp-up after a start command and
after stop command or during stop. The warning
functions are activated when the output frequency
has reached the resulting reference. The signal
outputs can be programmed to give a warning signal
via terminal 46 and via the relay output.
Description of choice:
The output current’s upper signal limit I
HIGH
must be
programmed within the variable frequency drive’s
normal operating range. See drawing at parameter
223 Warning: Low current, I
LOW
.
226 Warning: High frequency f
HIGH
(WARN.FREQ.HIGH)
Value:
Par. 200 Frequency range = 0-132 Hz [0]/[1].
par. 225 f
LOW
- 132 Hz
✭ 132.0 Hz
Par. 200 Frequency range = 0-1000 Hz [2]/[3].
par. 225 f
LOW
- 1000 Hz
✭ 132.0 Hz
Function:
If the output frequency exceeds the preset limit
f
a warning is given.
HIGH
Parameters 223-228 Warning functions do not
work during ramp-up after a start command and
after stop command or during stop. The warning
functions are activated when the output frequency
has reached the resulting reference. The signal
outputs can be programmed to give a warning signal
via terminal 46 and via the relay output.
Description of choice:
The output frequency’s upper signal limit f
HIGH
must
be programmed within the variable frequency drive’s
Programming
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VLT® 2800 Series
normal operating range. See drawing at parameter
223 Warning: Low current, I
227 Warning: Low feedback, FB
LOW
.
LOW
(WARN.FEEDB. LOW)
Value:
-100,000.000 - par. 228 Warn.: FB
✭ -4000.000
HIGH
Function:
If the feedback signal falls below the preset limit
FB
, a warning is given.
LOW
Parameters 223-228 Warning functions are out of
function during ramp-up after a start command and
after a stop command or during stop. The warning
functions are activated when the output frequency has
reached the resulting reference.The signal outputs can
be programmed to give a warning signal via terminal 46
and via the relay output.The unit for feedback in Closed
loop is programmed in parameter 416 Process units.
Description of choice:
Set the required value within the feedback range
(parameter 414 Minimum feedback, FB
415 Maximum feedback, FB
MAX
).
228 Warning: High feedback, FB
MIN
HIGH
and
(WARN.FEEDB HIGH)
Value:
Par. 227 Warn.: FB
- 100,000.000
LOW
✭ 4000.000
229 Frequence bypass, bandwidth
(FREQ BYPASS B.W.)
Value:
0 (OFF) - 100 Hz
✭ 0Hz
Function:
Some systems call for some output frequencies
to be avoided because of mechanical resonance
problems in the system. In parameters 230-231
Frequency bypass these output frequencies can be
programmed. In this parameter a bandwidth can be
defined on either side of these frequencies.
Description of choice:
The frequency set in this parameter will be centered
around parameters 230 Frequency bypass 1
and 231 Frequency bypass 2.
230 Frequency bypass 1 (FREQ. BYPASS 1)
231 Frequency bypass 2 (FREQ. BYPASS 2)
Value:
0 - 1000 Hz
✭ 0.0 Hz
Function:
Some systems call for some output frequencies
to be avoided because of mechanical resonance
problems in the system.
Description of choice:
Enter the frequencies to be avoided. See also
parameter 229 Frequency bypass, bandwidth.
Function:
If the feedback signal gets above the preset
limit FB
, a warning is given.
HIGH
Parameters 223-228 Warning functions are out of
function during ramp-up after a start command and
after a stop command or during stop. The warning
functions are activated when the output frequency has
reached the resulting reference. The signal outputs can
be programmed to give a warning signal via terminal 46
and via the relay output. The unit for feedback in Closed
loop is programmed in parameter 416 Process units.
Description of choice:
Set the required value within the feedback range
(parameter 414 Minimum feedback, FB
415 Maximum feedback, FB
MAX
).
MIN
and
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■Inputs and Outputs
VLT® 2800 Series
Digital inputs Term. no. 18{su-
per}1{/su-
per}
19{su-
27 29 33
per}1{/su-
per}
par. no. 302 303 304 305 307
Value:
No function (NO OPERATION) [0] [0] [0] [0] ✭[0]
Reset RESET [1] [1] [1] [1] [1]
Coasting stop inverse (MOTOR COAST INVERSE) [2] [2] [2] [2] [2]
Reset and coasting inverse (RESET AND COAST INV.) [3] [3] ✭[3] [3] [3]
Quick-stop inverse Quick-stop inverse [4] [4] [4] [4] [4]
DC braking inverse (DC-BRAKE INVERSE) [5] [5] [5] [5] [5]
Stop inverse (STOP INVERSE) [6] [6] [6] [6] [6]
Start Start ✭[7] [7] [7] [7] [7]
Pulse start (LATCHED START) [8] [8] [8] [8] [8]
Reverse Reverse [9] ✭[9] [9] [9] [9]
Reverse and start (START REVERSE) [10] [10] [10] [10] [10]
Start clockwise (ENABLE FORWARD) [11] [11] [11] [11] [11]
Start counter-clockwise (ENABLE REVERSE) [12] [12] [12] [12] [12]
Jog (JOGGING) [13] [13] [13] ✭[13] [13]
Freeze reference Freeze reference [14] [14] [14] [14] [14]
Freeze output frequency (FREEZE OUTPUT) [15] [15] [15] [15] [15]
Speed up (SPEED UP) [16] [16] [16] [16] [16]
Slow down (SPEED DOWN) [17] [17] [17] [17] [17]
Catch-up (CATCH-UP) [19] [19] [19] [19] [19]
Slow-down Slow-down [20] [20] [20] [20] [20]
Ramp 2 (RAMP 2) [21] [21] [21] [21] [21]
Preset ref, LSB (PRESET REF, LSB) [22] [22] [22] [22] [22]
Preset ref., msb Preset ref., msb [23] [23] [23] [23] [23]
Preset reference on (PRESET REFERENCE ON) [24] [24] [24] [24] [24]
Thermistor (THERMISTOR) [25] [25] [25] [25]
Precise stop, inverse (PRECISE STOP INV.) [26] [26]
Precise start/stop (PRECISE START/STOP) [27] [27]
Pulse reference (PULSE REFERENCE) [28]
Pulse feedback (PULSE FEEDBACK) [29]
Pulse input (PULSE INPUT) [30]
Selection of Setup, lsb Select Setup (lsb) [31] [31] [31] [31] [31]
Selection of Setup, msb (SETUP SELECT MSB) [32] [32] [32] [32] [32]
Reset and start (RESET AND START) [33] [33] [33] [33] [33]
Pulse counter start (PULSE COUNTER START) [34] [34]
1. All functions on terminal 18 and 19 are
controlled by an interrupter, which means that
the repetitive accuracy of the response time is
constant. Can be used for start/stop, setup switch
and especially for changing digital preset, i.e. to
obtain a reproduceable stop point when using
creep speed. For further information see VLT 2800
Precise Stop Instruction, MI.28.CX.02.
Programming
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Function:
In these parameters 302-307 Digital inputs it is possible
to choose between the different enabled functions
related to the digital inputs (terminals 18-33).
Description of choice:
No operation is selected if the variable frequency drive
is not to react to signals transmitted to the terminal.
Reset resets the variable frequency drive after an
alarm; however, a few alarms cannot be reset (trip
locked) without first disconnecting the electrical
supply and reconnecting it. See table under List
of warnings and alarms. Reset is activated on
the leading edge of the signal.
Coasting stop inverse is used for making the variable
frequency drive "let go" of the motor immediately (output
transistors are "turned off"), which means that the motor
runs freely to stop. Logic ’0’ leadstocoastingtostop.
Reset and coasting inverse are used to activate
motor coast simultaneously with reset. Logical
’0’ means motor coast stop and reset. Reset
is activated on the falling edge.
Quick stop inverse is used for activating the quick-stop
ramp down set in parameter 212 Quick stop
ramp-down time. Logic ’0’ leads to quick stop.
DC-braking inverse is used for stopping the motor by
energizing it with a DC voltage for a given time, see
parameters 126, 127 and 132 DC brake. Please note
that this function is only active if the value in parameter
126 DC braking time and 132 DC brake voltage is
different from 0. Logic ’0’ leads to DC braking.
Stop inverse, a logic ’0’ means that the motor speed
is ramped down to stop via the selected ramp.
None of the stop commands mentioned
above are to be used as repair switches.
Note that the variable frequency drive has
more voltage inputs than L1, L2 and L3 when the DC
bus terminals are used. Check that all voltage inputs
are disconnected and that the prescribed time (4 mins.)
has passed before repair work is commenced.
Start is selected if a start/stop command is required.
Logic ’1’ = start, logic ’0’ =stop.
VLT® 2800 Series
Latched start, if a pulse is applied for min. 14 ms, the
variable frequency drive will start the motor, provided
no stop command has been given. The motor can
be stopped by briefly activating Stop inverse.
Reversing is used for changing the direction of
rotation of the motor shaft. Logic ’0’ will not lead to
reverse. Logic ’1’ will lead to reverse. The reverse
signal only changes the direction of rotation, it
does not activate the start. Is not active at Process
regulation, closed loop . See also parameter 200
Output frequency range/direction.
Reverse and start is used for start/stop and for reverse
with the same signal. No active start command is
allowed at the same time. Acts as latch start reverse,
provided latch start has been chosen for terminal 18. Is
not active for Process regulation, closed loop. See also
parameter 200 Output frequency range/direction.
Start clockwise is used if you want the motor shaft only
to be able to rotate clockwise when started. Should
not be used for Process regulation, closed loop.
Start counterclockwise is used if you want the motor
shaft only to be able to rotate counterclockwise
when started. Should not be used for Process
regulation, closed loop. See also parameter 200
Output frequency range/direction.
Jog is used to override the output frequency
to the jog frequency set in parameter 213 Jog
frequency. Jog is active regardless of whether a
start command has been given, yet not when Coast
stop, Quick-stop or DC braking are active.
Freeze reference freezes the present reference.
The reference can now only be changed via
Speed up and Slow down.Iffreeze reference
is active, it will be saved after a stop command
and in the event of electrical failure.
✭
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VLT® 2800 Series
Freeze output freezes the present output frequency
(in Hz). The output frequency can now only be
changed via Speed up and Slow down .
NOTE
If Freeze output is active the variable
frequency drive can only be stopped if
you select Motor coast, Quick stop or
DC braking via a digital input.
Speed up and Slow down are selected if digital
control of the speed up/slow down is required. This
function is only active if Freeze reference or Freeze
output frequency has been selected.
If Speed up is active the reference or output frequency
will be increased, and if Speed down is active the
reference or output frequency will be reduced. The
output frequency is changed via the preset ramp
times in parameters 209-210 Ramp 2.
One pulse (logic ’1’ minimum high for 14 ms
and a minimum break time of 14 ms) will lead
to a speed change of 0.1 % (reference) or 0.1
Hz (output frequency). Example:
Preset reference, lsb and Preset reference, msb
makes it possible to select one of the four preset
references, see the table below:
Preset ref.
msb
Preset ref.
lsb
Function
0 0Presetref.1
0
1
1
Preset reference on is used for shifting between
remote-controlled reference and preset reference.
It is assumed that External/preset [2] has been
selected in parameter 214 Reference function. Logic
’0’ = remote-controlled references are active, logic
’1’ = one of the four preset references is active,
as can be seen from the table above.
Thermistor is to be selected if a possibly integrated
thermistor in the motor is to be able to stop the
variable frequency drive if the motor overheats.
Thecut-outvalueis3k
1Presetref.2
0Presetref.3
1Presetref.4
.
Term.29Term.33Freeze ref/
Function
freeze outp.
0 0 1 No speed change
0
1 1 Speed up
0 1Slowdown
1
1
1 1Slowdown
Freeze reference can be changed even if the variable
frequency drive has stopped. The reference will also
be saved if the AC lines are disconnected
Catch-up/Slow-down is selected if the reference
value is to be increased or reduced by a
programmable percentage value set in parameter
219 Catch-up/Slow-down reference .
Slow-down Catch-up Function
0 0 Unchanged speed
0
1
1
Ramp 2 is selected if a shift between ramp 1
(parameters 207-208) and ramp 2 (parameters
209-210) is required. Logic ’0’ leads to ramp 1
and logic ’1’ leads to ramp 2.
1 Increase by % value
0Reduceby%value
1Reduceby%value
If a motor features a Klixon thermal switch instead, this
can also be connected to the input. If motors operate
in parallel, the thermistors/thermal switches can be
connected in series (total resistance lower than 3 k
Parameter 128 Motor thermal protection must be
programmed for Thermistor warning [1] or Thermistor
trip [2] and the thermistor is to be connected between
a digital input and terminal 50 (+ 10 V supply).
Programming
).
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VLT® 2800 Series
Precise stop, inverse is selected to obtain a high
degree of accuracy when a stop command is repeated.
A logic 0 means that the motor speed is ramped
down to stop via the selected ramp.
Precise start/stop is selected to obtain a high degree of
accuracy when a start and stop command is repeated.
Pulse reference is selected if the reference
signal applied is a pulse train (frequency). 0 Hz
corresponds to parameter 204 Minimum reference,
Ref
. The frequency set in parameter 327 Pulse
MIN
reference/feedback corresponds to parameter
205 Maximum reference Ref
MAX
.
Pulse feedback is selected if the feedback signal
used is a pulse train (frequency). In parameter
327 Pulse reference/feedback the maximum
pulse feedback frequency is set.
Pulse input is selected if a specific number of pulses
must lead to a Precise stop, see parameter 343
Precise stop and parameter 344 Counter value.
Selection of Setup, lsb and Selection of S etup,
msb gives the possibility to select one of the
four setups. It is, however, a condition that
parameter 004 is set to Multisetup.
Reset and start can be used as a start function. If 24
V are connected to the digital input, this will cause
the variable frequency drive to reset and the motor
will ramp up to the preset reference.
Pulse counter start is used to start a counter stop
sequence with a pulse signal. The pulse width must at
least be 14 ms and not longer than the count period.
See also parameter 343 and the instruction, MI28CXYY.
Description of choice:
No function [0]. Is selected if the variable frequency
drive is not to react to signals connected to the terminal.
Reference [1]. If this function is selected, the reference
can be changed by means of an analog reference
signal. If reference signals are connected to more than
one input, these reference signals must be added up.
If a voltage feedback signal is connected, select
Feedback [2] on terminal 53.
309 Terminal 53 Min. scaling
(AI 53 SCALE LOW)
Value:
0.0 - 10.0 Volt
✭ 0.0 Volt
Function:
This parameter is used for setting the signal value
that is to correspond to the minimum reference or
the minimum feedback, parameter 204 Minimum
reference, Ref
/ 414 Minimum feedback, FB
MIN
MIN
.
Description of choice:
Set the required voltage value. For reasons of accuracy,
compensation should be made for voltage loss in long
signal cables. If the Time out function is to be used
(parameter 317 Time out and 318 Function after time
out), the value set must be higher than 1 Volt.
310 Terminal 53 Max. scaling
(AI 53 SCALE HIGH)
Value:
0 - 10.0 Volt
✭ 10.0 Volt
Function:
This parameter is used for setting the signal value
308 Terminal 53, analog input voltage
(AI [V]53FUNCT.)
Value:
No function (NO OPERATION)
✭REFERENCE % (REFERENCE %)
Feedback (FEEDBACK)
Function:
[0]
[1]
[2]
that is to correspond to the maximum reference value
or maximum feedback, parameter 205 Maximum
reference, Ref
/ 414 Maximum feedback, FB
MAX
Description of choice:
Set the required voltage value. For reasons of
accuracy, compensation should be made for
voltage losses in long signal cables.
In this parameter it is possible to select the function
required to be connected to terminal 53. Scaling of the
input signal is made in parameter 309 Terminal 53, min.
scaling and parameter 310 Terminal 53, max. scaling.
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MAX
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VLT® 2800 Series
314 Terminal 60, analog input current
(AI [MA] 60 FUNCT)
Value:
✭No function (NO OPERATION)
REFERENCE % (REFERENCE %)
Feedback (FEEDBACK)
Function:
This parameter allows a choice between the
different functions available for the input, terminal 60.
Scaling of the input signal is effected in parameter
315 Terminal 60, min. scaling and parameter
316 Terminal 60, max. scaling.
Description of choice:
No function [0]. Is selected if the variable frequency
drive is not to react to signals connected to the terminal.
Reference [1]. If this function is selected, the reference
can be changed by means of an analog reference
signal. If reference signals are connected to more than
one input, these reference signals must be added up.
If one current feedback signal is connected, select
Feedback [2] on terminal 60.
315 Terminal 60 Min. scaling
(AI 60 SCALE LOW)
Value:
0.0 - 20.0 mA
✭ 0.0 mA
Function:
In this parameter you can set the signal value that will
correspond to the minimum reference or minimum
feedback, parameter 204 Minimum reference, Ref
/ 414 Minimum feedback, FB
MIN
.
MIN
Description of choice:
Set the required current value. If the Time out function is
to be used (parameter 317 Time out and 318 Function
after time out ) the value set must be higher than 2 mA.
[0]
[1]
[2]
316 Terminal 60 Max. scaling
(AI 60 SCALE HIGH)
Value:
0.0 - 20.0 mA
✭ 20.0 mA
Function:
This parameter is used for setting the signal value that
is to correspond to the maximum reference value,
parameter 205 Maximum reference value, Ref
MAX
.
Description of choice:
Set the required current value.
317 Time out
(LIVE ZERO TIME O)
Value:
1 - 99 sec.
✭ 10 sec.
Function:
If the signal value of the reference or feedback signal
connected to one of the input terminals 53 or 60 falls
below 50 % of the minimum scaling for a period longer
than the time set, the function selected in parameter
318 Function after time out will be activated. This
function is only active if in parameter 309 Te rm in a l
53, min. scaling a value higher than 1 Volt has been
selected, or if in parameter 315 Terminal 60, min.
scaling a value higher than 2 mA has been selected.
Description of choice:
Set the required time.
318 Function after time out
(LIVE ZERO FUNCT.)
Value:
✭No operation (NO OPERATION)
Freeze output frequency
(FREEZE OUTPUT FREQ.)
Stop (STOP)
Jog (JOG)
Max. speed (MAX SPEED)
Stop and trip (STOP AND TRIP)
Programming
[0]
[1]
[2]
[3]
[4]
[5]
Function:
This parameter allows a choice of the function to be
activated after the expiration of the Time out (parameter
317 Time out ). If a time-out function occurs at the
same time as a bus time-out function (parameter
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VLT® 2800 Series
513 Bus time interval function ), the time-out function
in parameter 318 will be activated.
Description of choice:
The output frequency of the variable frequency
drive can be:
- frozen at the present frequency [1]
- overruled to stop [2]
- overruled to jog frequency [3]
- overruled to max. output frequency [4]
- overruled to stop with subsequent trip [5]
319 Analog output terminal 42
(AO 42 FUNCTION)
Value:
No function (NO OPERATION)
External reference min.-max. 0-20 mA
(REF MIN-MAX = 0-20 MA)
External reference min.-max. 4-20 mA
(REF MIN-MAX = 4-20 MA)
Feedback min.-max. 0-20 mA
(FB MIN-MAX = 0-20 MA)
Feedback min.-max. 4-20 mA
(FB MIN-MAX = 4-20 MA)
Output frequency 0-max 0-20 mA
(0-FMAX = 0-20 MA)
Output frequency 0-max 4-20 mA
(0-FMAX = 4-20 MA)
✭Output current 0-I
0-20 mA
INV
(0-IMAX = 0-20 MA)
Output current 0-I
IINV
4-20 mA
(0-PNOM = 4-20 MA)
Output power 0-P
M,N
0-20 mA
(0-PNOM = 0-20 MA)
Output power 0-P
M,N
4-20 mA
(0-PNOM = 4-20 MA)
Inverter temperature 68-212 °F (20-100 °C) 0-20 mA
(TEMP 20-100 C=0-20 MA)
Inverter temperature 68-212 °F (20-100 °C) 4-20 mA
(TEMP 20-100 C=0-20 MA)
Function:
The analog output can be used for stating a process
value. It is possible to choose two types of output
signals 0 - 20 mA or 4 - 20 mA.
If used as a voltage output (0 - 10 V), a pull-down
resistor of 500
must be fitted to common
(terminal 55). If the output is used as a current
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
output the resulting resistance from the equipment
connected may not exceed 500
.
Description of choice:
No function. Is selected if the analog output
is not to be used.
External Ref
MIN
-Ref
0-20 mA/4-20 mA.
MAX
An output signal is obtained, which is proportional
to the resulting reference value in the interval
Minimum reference, Ref
Ref
FB
(parameters 204/205).
MAX
MIN
-FB
0-20 mA/ 4-20 mA.
MAX
- Maximum reference,
MIN
An output signal is obtained, which is proportional to the
feedback value in the interval Minimum feedback, FB
- Maximum feedback, FB
0-20 mA/4-20 mA.
0-f
MAX
(parameter 414/415).
MAX
MIN
An output signal is obtained, which is proportional to
the output frequency in the interval 0 - f
202 Output frequency, high limit, f
0-I
0-20 mA/4-20 mA.
INV
MAX
MAX
).
(parameter
An output signal is obtained, which is proportional
to the output current in the interval 0 - I
0-P
0-20 mA/4-20 mA.
M,N
INV
An output signal is obtained, which is proportional to
the present output power. 20 mA corresponds to the
value set in parameter 102 Motor power, P
0-Temp.
0-20 mA/4-20 mA.
MAX
M,N
.
An output signal is obtained, which is proportional to
the present heatsink temperature. 0/4 mA corresponds
to a heatsink temperature of less than 68 °F (20 °C),
and 20 mA corresponds to 212 °F (20 °C).
323 Relay output 1-3
(RELAY 1-3 FUNCT.)
Value:
No function (NO OPERATION)
✭Unit ready (UNIT READY)
Enable/no warning (ENABLE/NO WARNING)
Running (RUNNING)
Running in reference, no warning
(RUNONREF/NOWARN)
Running, no warnings
(RUNNING/NO WARNING)
Running in reference range, no warnings
[0]
[1]
[2]
[3]
[4]
[5]
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VLT® 2800 Series
(RUN IN RANGE/ NO WARN)
Ready - AC line voltage within range
(RDY NO OVER/UNDERVOL)
Alarm or warning
(ALARM OR WARNING)
Current higher than current limit, par. 221
(CURRENT LIMIT)
Alarm (ALARM)
Output frequency higher than f
LOW
par. 225
(ABOVE FREQUENCY LOW)
Output frequency lower than f
HIGH
par. 226
(BELOW FREQUENCY HIGH)
Output current higher than I
LOW
par. 223
(ABOVE CURRENT LOW)
Output current lower than I
HIGH
par. 224
(BELOW CURRENT HIGH)
Feedback higher than FB
LOW
par. 227
(ABOVE FEEDBACK LOW)
Feedback lower than FB
HIGH
par. 228
(UNDER FEEDBACK HIGH)
Relay 123 (RELAY 123)
Reversing (REVERSE)
Thermal warning (THERMAL WARNING)
Local operation (LOCAL MODE)
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
Out of frequency range par. 225/226
(OUT OF FREQ RANGE)
[22]
Out of current range
(OUT OF CURRENT RANGE)
[23]
Out of feedback range
(OUT OF FDBK. RANGE)
[24]
Mechanical brake control
(MECH. BRAKE CONTROL)
[25]
Control word bit 11
(CONTROL WORD BIT 11)
[26]
Function:
The relay output can be used for giving the present
status or warning. The relay is a Form C with contacts
1 and 3 normally closed. The output is activated
when a given condition is fulfilled.
[6]
[7]
[8]
[9]
The adjustable frequency drive is ready for operation,
but no start command has been given. No warning.
Running:
A start command has been given. Also active
during ramp down.
Running in reference, no warning:
The drive is running at reference speed. No warning.
Running, no warning:
A start command has been given. No warning.
Running in reference range:
The drive is being controlled by a remote reference
and is running within range.
Ready - AC line voltage within range:
The adjustable frequency drive is ready for use; the
control card is receiving a supply voltage; and there
are no active control signals on the inputs. The AC
line voltage lies within the voltage limits.
Alarm or warning:
An alarm or a warning exists in the drive.
Current limit:
The output current is higher than the value programmed
in parameter 221 Current limit I
LIM
.
Alarm:
The output is activated by an alarm.
Output frequency higher than f
LOW
:
The output frequency is higher than the value set in
parameter 225 Warning: Low frequency, f
Output frequency higher than F
low
:
LOW
.
The output frequency is higher than the value set in
parameter 225 Warning: Low frequency, f
Output current higher than I
LOW
:
LOW
.
The output current is higher than the value set in
parameter 223 Warning: Low current, I
LOW
.
Programming
Description of choice:
No function:
Is selected if the adjustable frequency drive
is not to react to signals.
Unit ready:
The drive’s control card receives a supply voltage
andthedriveisreadyforoperation.
Enable, no warning:
= factory setting. () = display text [] = value for use in communication via serial communication port
✭
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Output current lower than I
HIGH
:
The output current is lower than the value set in
parameter 224 Warning: High current, I
HIGH
.
VLT® 2800 Series
327 Pulse/reference feedback
(PULSE REF/FB MAX)
Value:
150 - 67600 Hz
✭ 5000 Hz
Feedback higher than FB
LOW
:
The feedback value is higher than the value set in
parameter 227 Warning: Low feedback, FB
Feedback lower than FB
HIGH
:
LOW
.
The feedback value is lower than the value set in
parameter 228 Warning: High current, I
HIGH
.
Relay 123:
Only used in connection with Profibus.
Reversing:
The drive is running in reverse direction.
Thermal warning:
Above the temperature limit in either the motor or
the adjustable frequency drive, or from a thermistor
connected to a digital input.
Local operation:
The output is active when in parameter 002
Local/remote operation, Local operation [1]
has been selected.
Out of the frequency range:
The output frequency is out of the programmed
frequency range in parameters 225 and 226.
Out of the current range:
The motor current is out of the programmed
range in parameters 223 and 224.
Out of the feedback range:
The feedback signal is out of the programmed
range in parameters 227 and 228.
Out of the feedback range:
The feedback signal is out of the programmed
range in parameters 227 and 228.
Mechanical brake control:
Enables control of an external mechanical brake.
Control word bit 11
Relay output 1-3 can be controlled by serial
communication protocols that access bit 11
in the control word.
Function:
This parameter is used for setting the signal value
that corresponds to the maximum value set in
parameter 205 Maximum reference, Ref
MAX
or to
the maximum feedback value set in parameter
415 Maximum feedback, FB
MAX
.
Description of choice:
Set the required pulse reference or pulse feedback
to be connected to terminal 33.
328 Maximum Pulse 29
(MAX PULSE 29)
Value:
150 - 67600 Hz
✭ 5000 Hz
Function:
This parameter is used for setting the signal value
that corresponds to the maximum value set in
parameter 205 Maximum reference, Ref
MAX
or to
the maximum feedback value set in parameter
415 Maximum feedback, FB
MAX
.
NOTE
Only relevant for DeviceNet. See MG90BXYY
for further information.
341 Digital / pulse output terminal 46
(DO 46 FUNCTION)
Value:
Unit ready (UNIT READY)
[0]
Parameter [0] - [20] see parameter 323
Pulse reference (PULSE REFERENCE)
[21]
Parameter [22] - [25] see parameter 323
Pulse feedback (PULSE FEEDBACK)
Output frequency (PULSE OUTPUTFREQ)
Pulse current (PULSE CURRENT)
Pulse power (PULSE POWER)
Pulse temperature (PULSE TEMP)
[26]
[27]
[28]
[29]
[30]
Function:
The digital output can be used for giving the present
status or warning. The digital output (terminal 46) gives
✭
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VLT® 2800 Series
a 24 V DC signal when a given condition is fulfilled.
Terminal can also be used for frequency output.
Parameter 342 sets the maximum pulse frequency.
Description of choice:
Pulse reference Ref
MIN
-Ref
MAX
An output signal is obtained, which is proportional
to the resulting reference value in the interval
Minimum reference, Ref
Ref
Pulse feedback FB
(parameters 204/205).
MAX
MIN
- Maximum reference,
MIN
-FB
MAX
.
An output signal is obtained, which is proportional to the
feedback value in the interval Minimum feedback, FB
- Maximum feedback, FB
Output frequency 0-f
MAX
(parameter 414/415).
MAX
.
MIN
An output signal is obtained, which is proportional to
the output frequency in the interval 0 - f
202 Output frequency, high limit, f
Pulse current 0 - I
INV.
.
MAX
MAX
).
(parameter
An output signal is obtained, which is proportional
to the output current in the interval 0 - I
Pulse power 0 - P
M,N
.
INV
.
An output signal is obtained, which is proportional to
the present output power. Par. 342 corresponds to the
value set in parameter 102 Motor power, P
Pulse temperature 0 - Temp.
MAX
.
M,N
.
An output signal is obtained, which is proportional to
the present heatsink temperature. 0 Hz corresponds
to a heatsink temperature of less than 68 °F (20° C),
and 20 mA corresponds to 212 °F (100° C).
NOTE
Output terminal 46 is not available on
DeviceNet. Minimum output frequency at
frequency output = 16 Hz
342 Terminal 46, max. pulse scaling
(DO 46 MAX. PULS)
Value:
150 - 10000 Hz
✭ 5000 Hz
Function:
This parameter is used for setting the pulse output
signal’s maximum frequency.
Description of choice:
Set the required frequency.
343 Precise stop function
(PRECISE STOP)
Value:
✭Precise ramp stop (NORMAL)
Counter stop with reset
(COUNT STOP RESET)
Counter stop without reset
(COUNT STOP NO RESET)
Speed-compensated stop (SPD CMP STOP)
Speed-compensated counter stop with reset
(SPD CMP CSTOP W. RES)
Speed-compensated counter stop without reset
(SPD CMP CSTOP NO RES)
Function:
In this parameter you select which stop function is
performed in response to a stop command. All six
data selections contain a precise stop routine, thus
ensuring a high level of repeat accuracy.
The selections are a combination of the
functions described below.
NOTE
Pulse start [8] may n
ot be used together
with the precise stop function.
Description of choice:
Precise ramp stop [0] is selected to achieve high
repetitive precision at the stopping point.
Counter stop. Once it has received a pulse start signal
thevariablefrequencydriverunsuntilthenumberof
pulses programmed by the user have been received at
input terminal 33. In this way an internal stop signal will
activate the normal ramp down time (parameter 208).
The counter function is activated (starts timing)
at the flank of the start signal (when it changes
from stop to start).
Speed compensated stop. To stop at precisely
the same point, regardless of the present speed,
a stop signal received is delayed internally when
the present speed is lower than the maximum
speed (set in parameter 202).
[0]
[1]
[2]
[3]
[4]
[5]
Programming
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Reset. Counter stop and Speed-compensated stop
can be comb ined with or without reset.
Counter stop with reset [1]. After each precise
stop the number of pulses counted during
ramp down 0 Hz is reset.
Counter stop without reset [2]. The number of pulses
countedduringrampdownto0Hzisdeducted
from the counter value in parameter 344.
344 Counter value
(PULSE COUNT PRE.)
Value:
0 - 999999
Function:
In this parameter you can select the counter
value to be used in the integrated precise stop
function (parameter 343).
✭ 100000 pulses
VLT® 2800 Series
Description of choice:
The factory setting is 100000 pulses. The highest
frequency (max. resolution) that can be registered
at terminal 33 is 67.6 kHz.
349 Speed comp delay
(SPEED COMP DELAY)
Value:
0 ms - 100 ms
Function:
In this parameter the user can set the system’s
delay time (Sensor, PLC, etc.). If you are running
speed-compensated stop, the delay time at
different frequencies has a major influence on
the way in which you stop.
Description of choice:
The factory setting is 10 ms. This means that it is
assumed that the total delay from the Sensor, PLC
and other hardware corresponds to this setting.
✭ 10 ms
NOTE
Only active for speed-compensated stop.
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VLT® 2800 Series
■Special functions
400 Brake function
(BRAKE FUNCTION)
Value:
Off (OFF)
Resistor brake (RESISTOR)
AC brake (AC BRAKE)
Load sharing (LOAD SHARING)
Factory setting depends on unit type.
Function:
Resistor brake [1] is selected if the adjustable
frequency drive has an integral brake transistor
and the brake resistor is connected to terminals
81, 82. A higher intermediate circuit voltage is
permitted during braking (generated operation)
when a brake resistor is connected.
AC brake [4] can be selected to improve braking
without using brake resistors. Please note that AC
brake [4] is not as effective as Resistor brake [1].
[0]
[1]
[4]
[5]
Function:
This parameter makes it possible to select whether
reset and restart after a trip are to be manual or
whether the variable frequency drive is to be reset and
restarted automatically. Furthermore, it is possible
to select the number of times a restart is to be
attempted. The time between each attempt is set
in parameter 406 Automatic restart time.
Description of choice:
If Manual reset [0] is selected, reset is to be carried
out via the [STOP/RESET] key, a digital input or
serial communication. If the variable frequency drive
is to carry out an automatic reset and restart after
a trip, select data value [1], [3] or [10].
If Reset at power-up [11] is selected, the variable
frequency drive will carry out a reset if there has been
a fault in connection with the AC line failure.
The motor may start without warning.
Description of choice:
Select Resistor brake [1] if a brake resistor is connected.
Select AC brake [4] if short-term generated loads occur.
See parameter 144 Gain AC brake to set the brake.
Select Load sharing [5]ifthisisused.
NOTE
A change of selection will not become
active until the AC line voltage has been
disconnected and reconnected.
405 Reset function
(RESET MODE)
Value:
✭Manual reset (MANUAL RESET)
Automatic reset x 1
(AUTOMATIC X 1)
Automatic reset x 3
(AUTOMATIC X 3)
Automatic reset x 10
(AUTOMATIC X 10)
[10]
Reset at power-up
(RESET AT POWER UP)
[11]
[0]
[1]
[3]
406 Automatic restart time
(AUTORESTART TIME)
Value:
0 - 10 sec.
✭ 5 sec.
Function:
This parameter allows setting of the time from
tripping until the automatic reset function begins. It
is assumed that automatic reset has been selected
in parameter 405 Reset function.
Description of choice:
Set the required time.
409 Trip delay overcurrent, I
LIM
(TRIP DELAY CUR.)
Value:
0 - 60 sec. (61=OFF)
✭ OFF
Function:
When the variable frequency drive registers that
the output current has reached the current limit
I
(parameter 221 Current limit)andremains
LIM
there for the preset time, it is disconnected. Can
Programming
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VLT® 2800 Series
be used to protect the application, like the ETR
will protect the motor if selected.
Description of choice:
Select how long the variable frequency drive should
maintain the output current at the current limit
before it disconnects. At OFF parameter 409
I
LIM
Trip delay overcurrent, I
is not working, i.e.
LIM
disconnection will not take place.
411 Switching frequency
(SWITCH FREQ.)
Value:
3000 - 14000 Hz (VLT 2803-75)
3000 - 10000 Hz (VLT 2880-82)
✭ 4500 Hz
✭ 4500 Hz
Function:
The set value determines the switching frequency of the
inverter. If the switching frequency is changed, this may
help to minimize possible acoustic noise from the motor.
NOTE
The output frequency of the adjustable
frequency drive can never assume a value
higher than 1/10 of the switching frequency.
Description of choice:
When the motor is running, the switching frequency
is adjusted in parameter 411 Switching frequency
until the frequency has been obtained at which the
motor is as low-noise as possible.
Function:
The parameter must be set to LC-filter connected
if an LC-filter is connected between the adjustable
frequency drive and the motor.
Description of choice:
Select LC-filter connected [3] when an LC-filter
is connected between the adjustable frequency
driveandthemotor.
NOTE
When the LC filter is selected, the switching
frequency is changed to 4.5 kHz.
413 Overmodulation function
(OVERMODULATION)
Value:
Off (OFF)
✭On (ON)
Function:
This parameter allows connection of the
overmodulation function for the output voltage.
Description of choice:
Off [0] means that there is no overmodulation
of the output voltage, which means that torque
ripple on the motor shaft is avoided. This can
be a good feature, e.g. on grinding machines.
On [1] means that an output voltage can be obtained
which is greater than the AC line voltage (up to 5 %).
[0]
[1]
NOTE
The switching frequency is reduced
automatically as a function of the load.
See Temperature-Dependent Switching
Frequency under Special Conditions .
When LC-filter connected is selected in parameter
412, the switching frequency is 4.5 kHz.
414 Minimum feedback, FB
(MIN. FEEDBACK)
Value:
-100,000.000 - par. 415 FB
Function:
Parameter 414 Minimum feedback, FB
412 Variable switching frequency
(VAR CARRIER FREQ.)
Maximum feedback, FB
display text to make it show the feedback signal in a
process unit proportionally to the signal on the input.
are used to scale the
MAX
Value:
✭Without LC-filter (WITHOUT LC-FILTER)
LC-filter connected
(LC-FILTER CONNECTED)
[2]
[3]
Description of choice:
Set the value to be shown on the display as the
minimum feedback signal value on the selected
feedback input (parameters 308/314 Analog inputs).
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MAX
MIN
MIN
✭ 0.000
and 415
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VLT® 2800 Series
415 Maximum feedback, FB
MAX
(MAX. FEEDBACK)
Value:
FB
- 100,000.000
MIN
✭ 1500.000
Function:
See description of parameter 414 Minimum
feedback, FB
MIN
.
Description of choice:
Setthevaluetobeshownonthedisplaywhenthe
maximum feedback has been obtained on the selected
feedback input (parameter 308/314 Analog inputs).
416 Process units
(REF/FEEDB. UNIT)
Value:
✭No unit (NO UNIT)
%(%)
ppm (PPM)
rpm (RPM)
bar (BAR)
Cycles/min (CYCLE/MI)
Pulses/s (PULSE/S)
Units/s (UNITS/S)
Units/min. (UNITS/MI)
Units/h (UNITS/H)
°C (°C)
Pa (PA)
l/s (L/S)
3
m
/s (M3/S)
l/min. (L/M)
3
m
/min. (M3/MIN)
l/h (L/H)
3
/h (M3/H)
m
Kg/s (KG/S)
Kg/min. (KG/MIN)
Kg/hour (KG/H)
Tons/min. (T/MIN)
Tons/hour (T/H)
Metres (M)
Nm (NM)
m/s (M/S)
m/min. (M/MIN)
°F (°F)
In wg (IN WG)
gal/s (GAL/S)
3
Ft
/s (FT3/S)
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]
[28]
[29]
[30]
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
Gal/min. (GAL/MIN)
3
Ft
/min. (FT3/MIN)
Gal/h (GAL/H)
3
Ft
/h (FT3/H)
Lb/s (LB/S)
Lb/min. (LB/MIN)
Lb/hour (LB/H)
Lb ft (LB FT)
Ft/s (FT/S)
Ft/min. (FT/MIN)
[31]
[32]
[33]
[34]
[35]
[36]
[37]
[38]
[39]
[40]
Function:
Select among different units to be shown on the display.
The unit is read out if an LCP control unit can be
connected, and if Reference [unit] [2] or Feedback [unit]
[3] has been selected in one of parameters 009-012
Display read-out, and in Display mode. The unit is used
in Closed loop also as a unit for Minimum/Maximum
reference and Minimum/Maximum feedback.
Description of choice:
Select the required unit for the reference/feedback signal.
NOTE
Parameters 417-421 are only used, if in
parameter 100 Configuration the selection
made is Speed regulation, closed loop [1].
417 Speed PID proportional gain
(SPEED PROP GAIN)
Value:
0.000 (OFF) - 1.000
✭ 0.010
Function:
Proportional gain indicates how many times the
fault (deviation between the feedback signal and
the setpoint) is to be amplified.
Description of choice:
Quick regulation is obtained at high amplification,
but if the amplification is too high, the process may
become unstable in the case of overshooting.
Programming
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VLT® 2800 Series
418 Speed PID integral time
(SPEED INT. TIME)
Value:
20.00 - 999.99 ms (1000 = OFF)
Function:
TheintegraltimedetermineshowlongthePID
regulator takes to correct the error. The greater
the error, the quicker the integrator frequency
contribution will increase. The integral time is the
time the integrator needs to achieve the same
change as the proportional amplification.
Description of choice:
Quick regulation is obtained through a short integral
time. However, if this time is too short, it can make
the process unstable. If the integral time is long,
major deviations from the required reference may
occur, since the process regulator will take long
to regulate if an error has occurred.
✭ 100 ms
frequencies, limiting the gain may be useful. This
enables obtaining a pure D-gain at low frequencies
and a constant D-gain at higher frequencies.
Description of choice:
Select the required gain limit.
421 Speed PID lowpass filter time
(SPEED F ILT. TIME)
Value:
20 - 500 ms
Function:
Noise in the feedback signal is dampened by a first
order lowpass filter to reduce the noise’s impact on the
regulation. This might be an advantage, e.g. if there is
a great amount of noise on the signal. See drawing.
✭ 100 ms
419 Speed PID differential time
(SPEED DIFF. TIME)
Value:
0.00 (OFF) - 200.00 ms
Function:
The differentiator does not react to a constant error.
It only makes a contribution when the error changes.
The quicker the error changes, the stronger the gain
from the differentiator will be. The contribution is
proportional to the speed at which errors change.
Description of choice:
Quick control is obtained by a long differential time.
However, if this time is too long, it can make the
process unstable. When the differential time is
0 ms, the D-function is not active.
420 Speed PID D- gain limit
(SPEED D-GAIN LIM)
Value:
5.0 - 50.0
✭ 20.00 ms
✭ 5.0
Description of choice:
If a time constant (t) of 100 ms is programmed, the
cut-off frequency for the lowpass filter will be 1/0.1 =
10 RAD/sec., corresponding to (10 / 2 x π)=1.6Hz.
The PID regulator will then only regulate a feedback
signal that varies with a frequency of less than 1.6 Hz.
If the feedback signal varies by a higher frequency than
1.6 Hz, it will be dampened by the lowpass filter.
Function:
It is possible to set a limit for the gain provided by the
differentiator. Since the D-gain increases at higher
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VLT® 2800 Series
423 U1 voltage
(U1 VOLTAGE)
Value:
0.0 - 999.0 V
Function:
Parameters 423-428 are used when in parameter
101Torque characteristic a selection has been made
of Special motor characteristic [8]. It is possible to
determine a U/f characteristic on the basis of four
definable voltages and three frequencies. The voltage
at 0 Hz is set in parameter 133 Start voltage.
Description of choice:
Set the output voltage (U1) that is to match the first
output frequency (F1), parameter 424 F1 frequency.
✭ par. 103
Description of choice:
Set the output voltage (U2) that is to match the second
output frequency (F2), parameter 426 F2 frequency.
426 F2 frequency
(F2 FREQUENCY)
Value:
Par. 424 F1 frequency - par. 428 F3 frequency
✭ Par. 104 Motor frequency
Function:
See parameter 423 U1 voltage.
Description of choice:
Set the output frequency (F2) that is to match the
second output voltage (U2), parameter 425 U2 voltage .
427 U3 voltage
(U3 VOLTAGE)
Value:
0.0 - 999.0 V
Function:
See parameter 423 U1 voltage.
✭ par. 103
424 F1 frequency
(F1 FREQUENCY)
Value:
0.0 - par. 426 F2 frequency
✭ Par. 104 Motor frequency
Function:
See parameter 423 U1 voltage .
Description of choice:
Set the output frequency (F1) that is to match the first
output voltage (U1), parameter 423 U1 voltage .
425 U2 voltage
(U2 VOLTAGE)
Value:
0.0 - 999.0 V
Function:
See parameter 423 U1 voltage.
✭ par. 103
Description of choice:
Set the output voltage (U3) that is to match the third
output frequency (F3), parameter 428 F3 frequency .
428 F3 frequency
(F3 FREQUENCY)
Value:
Par. 426 F2 frequency - 1000 Hz
✭ Par. 104 Motor frequency
Function:
See parameter 423 U1 voltage.
Description of choice:
Set the output frequency (F3) that is to match the third
output voltage (U3), parameter 427 U3 voltage .
Programming
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VLT® 2800 Series
NOTE
Parameters 437-444 are only used
if in parameter 100 Configuration a
selection has been made of Process
regulation, closed loop. [3].
437 Process PID normal/inverse control
(PROC NO/INV CTRL)
Value:
✭Normal (NORMAL)
Inverse (INVERSE)
Function:
It is possible to choose whether the process regulator
is to increase/reduce the output frequency if there
is a deviation between the reference/setpoint
and the actual process mode.
Description of choice:
Ifthevariablefrequencydriveistoreduce
the output frequency in case the feedback signal increases, select Normal [0].
If the variable frequency drive is to increase the
output frequency in case the feedback signal
increases, select Inverse [1].
[0]
[1]
NOTE
If Disable [0] is selected, it will mean that when
the deviation changes its sign, the integrator
will first have to integrate down from the level
obtained as a result of the former error, before any
change in output frequency occurs.
439 Process PID start frequency
(PROC START VALUE)
Value:
f
MIN-fMAX
(parameter 201/202)
✭ Par. 201 Output frequency, low limit, f
Function:
When the start signal comes, the variable frequency
drive will react in the form of Open loop and will not
change to Closed loop until the programmed start
frequency is reached. This makes it possible to set a
frequency that corresponds to the speed at which the
process normally runs, which will enable the required
process conditions to be reached sooner.
Description of choice:
Set the required start frequency.
MIN
438 Proces PID anti windup
(PROC ANTI WINDUP)
Value:
Not active (DISABLE)
✭Active (ENABLE)
Function:
It is possible to select whether the process regulator is
to continue regulating on a deviation even if it is not
possible to increase/reduce the output frequency.
Description of choice:
The factory setting is Enable [1], which means that
the integration link is initialized in relation to the
actual output frequency if either the current limit, the
voltage limit or the max./min. frequency has been
reached. The process regulator will not engage again
until either the error is zero or its sign has changed.
Select Disable [0] if the integrator is to continue
integrating on the deviation, even if it is not possible
to remove the fault by such control.
[0]
[1]
NOTE
If the variable frequency drive is running a the
current limit before the required start frequency
is obtained, the process regulator will not be
activated. For the regulator to be activated anyway,
start frequency must be lower to the required output
frequency. This can be done during operation.
440 Proces PID proportioanl gain
(PROC. PROP. GAIN)
Value:
0.0 - 10.00
✭ 0.01
Function:
The proportional gain indicates the number of
times the deviation between the setpoint and the
feedback signal is to be applied.
Description of choice:
Quick regulation is obtained by a high gain, but
if the gain is too high, the process may become
unstable due to overshoot.
the
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441 Process PID integration time
(PROC. INTEGR. T.)
Value:
0.01 - 9999.99 (OFF)
Function:
The integrator provides an increasing gain at a constant
error between the reference/setpoint and the feedback
signal. The greater the error, the quicker the integrator
frequency contribution will increase.The integral time
is the time needed by the integrator to make the
same change as the proportional gain.
Description of choice:
Quick regulation is obtained at a short integral time.
However, this time may become too short, which can
make the process unstable due to overswing. If the
integral time is long, major deviations from the required
setpoint may occur, since the process regulator will
take a long time to regulate in relation to a given error.
442 Process PID differentiation time
(PROC. DIFF. TIME)
Value:
0.00 (OFF) - 10.00 sec.
Function:
The differentiator does not react to a constant error.
It only makes a gain when an error changes. The
quicker the deviation changes, the stronger the gain
from the differentiator. The gain is proportional to
the speed at which the deviation changes.
Description of choice:
Quick regulation is obtained with a long differentiation
time. However, this time may become too long, which
can make the process unstable due to overswing.
✭ OFF
✭ 0.00 sec.
at slow changes and a constant differentiator gain
where quick changes to the deviation occur.
Description of choice:
Select a differentiator gain limit as required.
444 Process PID lowpass filter time
(PROCFILTERTIME)
Value:
0.02 - 10.00
Function:
Noise in the feedback signal is dampened by a first
order lowpass filter to reduce the noise’s impact on
the process regulation. This can be an advantage
e.g. if there is a lot of noise on the signal.
Description of choice:
Select the required time constant (t). If a time constant
(t)of0.1sisprogrammed,thecut-offfrequency
for the lowpass filter will be 1/0.1 = 10 RAD/sec.,
corresponding to (10 / 2 x π) = 1.6 Hz. The process
regulator will thus only regulate a feedback signal
that varies by a frequency lower than 1.6 Hz. If the
feedback signal varies by a higher frequency than 1.6
Hz, it will be dampened by the lowpass filter.
445 Flying start
(FLYING START)
Value:
✭Off (DISABLE)
OK - same direction
(OK-SAME DIRECTION)
OK - both directions
(OK-BOTH DIRECTIONS)
DC brake and start
(DC-BRAKE BEF. START)
✭ 0.02
Programming
[0]
[1]
[2]
[3]
443 Process PID diff. gain limit
(PROC. DIFF.GAIN)
Value:
5.0 - 50.0
Function:
It is possible to set a limit for the differentiator gain.
The differentiator gain will increase if there are fast
changes, which is why it can be beneficial to limit this
gain. Therebyapuredifferentiatorgainisobtained
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A8.22 - VLT is a registered Danfoss trademark
✭ 5.0
Function:
This function makes it possible to ’catch’ a rotating
motor shaft, which is no longer controlled by the
variable frequency drive, e.g. because of an AC line
drop-out. The function is activated each time a start
command is enabled. For the variable frequency
drivetobeableto’catch’ the rotating motor shaft,
the motor speed must be lower than the frequency
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VLT® 2800 Series
that corresponds to the frequency in parameter
202 Output frequency, high limit, f
MAX
.
Description of choice:
Select Disable [0] if this function is not required.
Select OK - same direction [1] if the motor shaft
is only able to rotate in the same direction when
cutting in. OK - same direction [1] should be
selected if in parameter 200 Output frequency range
a selection has been of Clockwise only .
Select OK - both directions [2] if the motor is able
to rotate in both directions when cutting in.
Select DC brake and start [3] if the frequency converter
is to be able to brake the motor using the DC brake
first, followed by start. It is assumed that parameters
126-127/132 DC brake are enabled. In the case of
higher ’Windmilling’ (rotating motor) effects, the variable
frequency drive is not able to ’catch’ a rotating motor
without selecting DC brake and start .
Limitations:
- Too low inertia will lead to load acceleration, which
can be dangerous or prevent correct catching of
a rotating motor. Use the DC brake instead.
- If the load is driven, e.g. by ’Windmilling’
(rotating motor) effects, the unit may cut out
because of overvoltage.
- Flying start does not work at lower values
than 250 rpm.
Description of choice:
The required % value can be selected in the interval
f
MIN-fMAX
. Values over 100 % are used if the
set point variations are only small.
452 Controller range
(PID CONTR. RANGE)
Value:
0 - 200 %
✭ 10 %
Function:
This parameter is only active if in parameter
100 Configuration the selection made is Speed
regulation, closed loop.
The controller range (bandwidth) limits the output from
the PID controller as a % of motor frequency f
M,N
.
Description of choice:
The required % value can be selected for motor
frequency f
. If the controller range is reduced the
M,N
speed variations will be less during initial tuning.
456 Brake Voltage Reduce
(BRAKE VOL.REDUCE)
Value:
0 - 25 V if 200V device
0 - 50 V if 400V device
✭ 0
✭ 0
Function:
The user sets the voltage by which the level for
451 Speed PID feedforward factor
(FEEDFORWARD FACT)
Value:
0 - 500 %
✭ 100 %
resistor braking is reduced. It is only active when
resistor in parameter 400 is selected.
Description of choice:
The greater the reduction value, the faster the reaction
Function:
This parameter is only active if in parameter 100
to a generator overload. Should only be used if there are
problems with overvoltage in the intermediate circuit.
Configuration the selection made is Speed regulation,
closed loop. The FF function sends a larger or smaller
part of the reference signal outside the PID controller
in such a way that the PID controller only has an
influence on part of the control signal. Any change
to the set point will thus have a direct effect on the
motor speed. The FF factor provides high dynamism
when changing the set point and less overswing.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
■Serial communication
500 Address
(BUS ADDRESS)
Value:
0 - 126
Function:
This parameter allows the allocation of an
address to each variable frequency drive in a
serial communication network.
Description of choice:
The individual variable frequency drive must be
allocated a unique address.
If the number of units connected (variable
frequency drives + master) is higher than 31,
a repeater must be used.
Parameter 500 Address cannot be selected via the serial
communication, but must be preset via the control unit.
501 Baudrate
(BAUDRATE)
Value:
300 Baud (300 BAUD)
600 Baud (600 BAUD)
1200 Baud (1200 BAUD)
2400 Baud (2400 BAUD)
4800 Baud (4800 BAUD)
✭9600 Baud (9600 BAUD)
Function:
This parameter is for programming the speed at which
data is transmitted via the serial port. Baud rate is
defined as the number of bits transmitted per second.
Description of choice:
The variable frequency drive’s transmission speed
must be set at a value corresponding to the
transmission speed of the master.
Parameter 501 Baudrate cannot be selected via the
serial port, but must be preset via the operating unit.
✭ 1
[0]
[1]
[2]
[3]
[4]
[5]
502 Coasting Stop
(COASTING SELECT)
Value:
Digital input (DIGITAL INPUT)
Serial port (SERIAL PORT)
Logic and (LOGIC AND)
✭Logic or (LOGIC OR)
Function:
Parameters 502-508 allow a choice between
controlling the variable frequency drive via the digital
inputs and/or via the serial port.
If Serial port [1] is selected, the relevant
command can only be activated if a command
is given via the serial port.
In the case of Logic and [2] the function must
also be activated via a digital input.
Description of choice:
The table below shows when the motor is running
and when it is coasting, when each of the
following is selected: Digital input [0], Serial port
[1], Logic and [2] or Logic or [3].
NOTE
Note that Coasting stop and Bit 03 in the
control word are active at logic ’0’.
Digital input [0]
Dig. input Ser. port Function
0 0 Coasting
0 1 Coasting
1 0 Motor running
1 1 Motor running
Serial port [1]
Dig. input Ser. port Function
0 0 Coasting
0 1 Motor running
1 0 Coasting
1 1 Motor running
Logic and [2]
Dig. input Ser. port Function
0 0 Coasting
0 1 Motor running
1 0 Motor running
1 1 Motor running
[0]
[1]
[2]
[3]
Programming
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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Logic or [3]
Dig. input Ser. port Function
0 0 Coasting
0 1 Coasting
1 0 Coasting
1 1 Motor running
VLT® 2800 Series
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
503 Quick-stop
(Q STOP SELECT)
Value:
Digital input (DIGITAL INPUT)
Serial port (SERIAL PORT)
Logic and (LOGIC AND)
✭Logic or (LOGIC OR)
Function:
See function description for parameter 502
Coasting stop.
Description of choice:
The table below shows when the motor is running
and when it is in Quick stop mode, when each of
the following is selected: Digital input [0], Serial
port [1], Logic and [2] or Logic or [3].
NOTE
Note that Quick stop inverse and Bit 04 in the
control word are active at logic ’0’.
Digital input [0]
Dig. input Serial port Function
0 0 Quick stop
0 1 Quick stop
1 0 Motor running
1 1 Motor running
[0]
[1]
[2]
[3]
504 DC brake
(DC BRAKE SELECT)
Value:
Digital input (DIGITAL INPUT)
Serial port (SERIAL PORT)
Logic and (LOGIC AND)
✭Logic or (LOGIC OR)
Function:
See function description for parameter 502
Coasting stop.
Description of choice:
The table below shows when the motor is
running and the DC braking when each of the
following is selected Digital input [0], Serial port
[1], Logic and [2] or Logic or [3].
NOTE
Note that DC braking inverse and Bit 02 in the
control word are active at logic ’0’.
Digital input [0]
Dig. input Ser. port Function
0 0 DC braking
0 1 DC braking
1 0 Motor running
1 1 Motor running
[0]
[1]
[2]
[3]
Serial port [1]
Dig. input Serial port Function
0 0 Quick stop
0 1 Motor running
1 0 Quick stop
1 1 Motor running
Logic and [2]
Dig. input Serial port Function
0 0 Quick stop
0 1 Motor running
1 0 Motor running
1 1 Motor running
Logic or [3]
Dig. input Serial port Function
0 0 Quick stop
0 1 Quick stop
1 0 Quick stop
1 1 Motor running
Serial port [1]
Dig. input Ser. port Function
0 0 DC braking
0 1 Motor running
1 0 DC braking
1 1 Motor running
Logic and [2]
Dig. input Ser. port Function
0 0 DC braking
0 1 Motor running
1 0 Motor running
1 1 Motor running
Logic or [3]
Dig. input Ser. port Function
0 0 DC braking
0 1 DC braking
1 0 DC braking
1 1 Motor running
Programming
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
505 Start
(START SELECT)
Value:
Digital input (DIGITAL INPUT)
Serial port (SERIAL PORT)
Logic and (LOGIC AND)
✭Logic or (LOGIC OR)
Function:
See function description for parameter 502
Coasting stop.
Description of choice:
The table below shows when the motor has stopped
and when the variable frequency drive has a start
command when each of the following is selected: Digital
input [0], Serial port [1], Logic and [2] or Logic or [3].
Digital input [0]
Dig. input Ser. port Function
0 0 Stop
0 1 Stop
1 0 Start
1 1 Start
[0]
[1]
[2]
[3]
506 Reverse
(REVERSE SELECT)
Value:
Digital input (DIGITAL INPUT)
Serial port (SERIAL PORT)
Logic and (LOGIC AND)
✭Logic or (LOGIC OR)
Function:
See function description for parameter 502
Coasting stop.
Description of choice:
The table below shows when the motor is running
clockwise and counter-clockwise when each of
the following is selected: Digital input [0], Serial
port [1], Logic and [2] or Logic or [3].
Digital input [0]
Dig. input Ser. port Function
0 0 Clockwise
0 1 Clockwise
1 0 Counter-clockwise
1 1 Counter-clockwise
[0]
[1]
[2]
[3]
Serial port [1]
Dig. input Ser. port Function
0 0 Stop
0 1 Start
1 0 Stop
1 1 Start
Logic and [2]
Dig. input Ser. port Function
0 0 Stop
0 1 Stop
1 0 Stop
1 1 Start
Logic or [3]
Dig. input Ser. port Function
0 0 Stop
0 1 Start
1 0 Start
1 1 Start
Serial port [1]
Dig. input Ser. port Function
0 0 Clockwise
0 1 Counter-clockwise
1 0 Clockwise
1 1 Counter-clockwise
Logic and [2]
Dig. input Ser. port Function
0 0 Clockwise
0 1 Clockwise
1 0 Clockwise
1 1 Counter-clockwise
Logic or [3]
Dig. input Ser. port Function
0 0 Clockwise
0 1 Counter-clockwise
1 0 Counter-clockwise
1 1 Counter-clockwise
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
507 Selection of Setup
(SETUP SELECT)
Value:
Digital input (DIGITAL INPUT)
Serial communication (SERIAL PORT)
Logic and (LOGIC AND)
✭Logic or (LOGIC OR)
Function:
See function description of parameter 502
Coasting stop.
Description of choice:
The table below shows which Setup (parameter
004 Active Setup) is selected for each of the
following: Digital input [0], Serial communication
[1], Logic and [2] or Logic or [3].
Digital input [0]
Setup msb Setup lsb Function
0 0 Setup 1
0 1 Setup 2
1 0 Setup 3
1 1 Setup 4
[0]
[1]
[2]
[3]
Logic or [3]
Bus
Setup
msb
Bus
Setup
lsb
Dig.
Setup
msb
Dig.
Setup
lsb
0 0 0 0 1
0
0
0
0 0 1 2
0 1 0 3
0 1 1 4
0 1 0 0 2
0
0
0
1 0 1 2
1 1 0 4
1 1 1 4
1 0 0 0 3
1
1
1
0 0 1 4
0 1 0 3
0 1 1 4
1 1 0 0 4
1
1
1
1 0 1 4
1 1 0 4
1 1 1 4
Setup
no.
Serial communication [1]
Setup msb Setup lsb Function
0 0 Setup 1
0 1 Setup 2
1 0 Setup 3
1 1 Setup 4
Logic and [2]
Bus
Setup
msb
Bus
Setup
lsb
Dig.
Setup
msb
Dig.
Setup
lsb
0 0 0 0 1
0
0
0
0 0 1 1
0 1 0 1
0 1 1 1
0 1 0 0 1
0
0
0
1 0 1 2
1 1 0 1
1 1 1 2
1 0 0 0 1
1
1
1
0 0 1 1
0 1 0 3
0 1 1 3
1 1 0 0 1
1
1
1
1 0 1 2
1 1 0 3
1 1 1 4
Programming
Setup
no.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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508 Selection of preset ref.
(PRES.REF. SELECT)
Value:
Digital input (DIGITAL INPUT)
Serial comunication (SERIAL PORT)
Logic and (LOGIC AND)
✭Logic or (LOGIC OR)
[0]
[1]
[2]
[3]
VLT® 2800 Series
See Serial port for VLT 2800 for further details
of control word profiles.
513 Bus time interval
(BUS TIMEOUT TIME)
Value:
1 - 99 sec.
✭ 1 sec.
Function:
See function description of parameter 502
Coasting stop.
Description of choice:
Preset references via serial communication are
active when parameter 512 Telegram profile
is set to FC protocol [1].
509 Bus jog 1 (BUS JOG 1 FREQ.)
510 Bus jog 2 (BUS JOG 2 FREQ.)
Value:
0.0 - par. 202 Output frequency high limit
✭ 10,0 Hz
Function:
If parameter 512 Telegram Profile shows the selection
Profidrive [0], two fixed speeds (Jog 1 or Jog 2)
can be selected via the serial port.
The function is the same as in parameter
213 Jog frequency .
Description of choice:
Jog frequency f
0Hzandf
MAX
can be selected between
JOG
.
512 Telegram Profile
(TELEGRAM PROFILE)
Value:
Profidrive (PROFIDRIVE)
✭FC protocol (FC PROTOCOL)
Function:
It is possible to choose between two different
control word profiles.
[0]
[1]
Function:
In this parameter it is possible to preset the maximum
time expected to elapse between receipt of two
consecutive telegrams. If this time is exceeded, the
serial communication is assumed to have stopped
and the desired reaction is preset in parameter
514 Bus time interval function.
Description of choice:
Preset the required time.
514 Bus time interval function
(BUS TIMEOUT FUNC)
Value:
✭Off (OFF)
Freeze output frequency (FREEZE OUTPUT)
Stop (STOP)
Jogging (JOGGING)
Max. speed (MAX SPEED)
Stop and trip (STOP AND TRIP)
Function:
In this parameter you can select the required reaction
for the variable frequency drive when the preset
time in parameter 513 Bustimeintervalhas been
exceeded. If choices [1] to [5] are activated the
output relay will be deactivated.
Description of choice:
The output frequency of the variable frequency drive
can be frozen at the present value, stop the motor,
be frozen at parameter 213 Jogging frequency,be
frozen at parameter 202 Output frequency, high
limit f
or stop and activate a cut out.
MAX
[0]
[1]
[2]
[3]
[4]
[5]
Description of choice:
Select the desired control word profile.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
515-544 Data readout
Value:
Par.
no.
515 Res. reference (REFERENCE %) %
516 Res. reference [Unit] (REFERENCE [UNIT]) Hz, rpm
517 Feedback [Unit] (FEEDBACK [UNIT]) Par. 416
518 Frequency (FREQUENCY) Hz
519 Frequency x scale (FREQUENCY X SCALE) Hz
520 Motor current (MOTOR CURRENT) Amp
521 Torque (TORQUE) %
522 Power[kW] (POWER (KW)) kW
523 Power[HP] (POWER (HP)) HP
524 Motor voltage (MOTOR VOLTAGE) V
525 DC-link voltage (DC LINK VOLTAGE) V
526 Thermal load motor (MOTOR THERMAL) %
527 Thermal load inverter (INV. THERMAL) %
528 Digital input (DIGITAL INPUT) Bin
529 Term.53, analog input (ANALOG INPUT 53) V
531 Term.60, analog input (ANALOG INPUT 60) mA
532 Pulse reference (PULSE REFERENCE) Hz
533 External ref. (EXT. REF.%) %
534 Status word, Hex (STATUS WORD) Hex
535 Bus feedback 1 (BUS FEEDBACK1) Hex
537 Inverter temperature (INVERTER TEMP.) °C
538 Alarm word (ALARM WORD) Hex
539 Control word (CONTROL WORD) Hex
540 Warning word (WARN. WORD) Hex
541 Extended status word (STATUS WORD) Hex
544 Pulse count (PULSE COUNT)
Description Display text Unit Update
interval
Function:
These parameters can be read out via the serial
communication port and the LCP display. See also
parameters 009-012 Display readout.
NOTE
Parameters 515-541 can only be read out
via an LCP control unit.
Description of choice:
Parameter 515, Resulting reference %:
Gives the resulting reference as a percentage in the
range from Minimum reference, Ref
reference, Ref
Parameter 516, Resulting reference [u nit]:
Gives the resulting reference in Hz in closed loop
(parameter 100). In closed loop the reference unit
in parameter 416 Process units is selected.
Parameter 517, Feedback [un it]:
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
. See also Handling of References.
MAX
to Maximum
MIN
Gives the resulting feedback value with the unit/scaling
that is selected in parameters 414, 415 and 416.
See also handling of feedback.
Parameter 518, Frequency [Hz]:
Gives the output frequency from the adjustable
frequency drive.
Parameter 519, Frequency x scaling [-]:
Corresponds to the present output frequency f
multiplied by the factor preset in parameter 008
Display scaling of output frequency .
Parameter 520, Motor current [A]:
Gives the motor’s phase current measured
as an effective value.
Parameter 521, Torque [Nm]:
Gives the motor’s present load in relation to
the motor’s rated torque.
Parameter 522, Power [kW]:
Programming
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VLT® 2800 Series
Gives the motor’s present power in kW which
the motor absorbs.
Parameter 523, Power [HP]:
Gives the motor’s present voltage in HP which
the motor absorbs.
Parameter 524, Motor voltage:
Gives the voltage supplied to the motor.
Parameter 525, DC link voltage:
Gives the intermediate circuit voltage in the
adjustable frequency drive.
Parameter 526, Thermal load, motor [%]:
Gives the calculated/estimated thermal load on the
motor. 100% is the trip point. See also parameter
128 Thermal motor protection.
Parameter 527, Thermal load INV [%]:
Gives the calculated/estimated thermal load on the
adjustable frequency drive. 100% is the cut-out limit.
Parameter 528, Digital input:
Gives the signal status from the 5 digital inputs (18, 19,
27, 29 and 33). Input 18 corresponds to the bit on the
extreme left. ’0’ = no signal, ’1’ = connected signal.
Parameter 529, Terminal 53 analog input [V]:
Gives the voltage value for the signal on terminal 53.
Parameter 531, Terminal 60 analog input [mA]:
Gives the current value for the signal on terminal 60.
Gives the heatsink temperature on the adjustable
frequency drive. The trip limit is 194°F - 212°F (90°C
- 100°C), with reset at 158°F ± 9°F (70 ± 5 °C).
Parameter 538, Alarm word:
Gives in Hex code which alarm is on the adjustable
frequency drive. See Warning word, extended
status word and alarm word.
Parameter 539, Control w ord:
Gives the present control word on the adjustable
frequency drive in Hex. See Serial communication
for the VLT 2800.
Parameter 540, Warning word:
Gives whether there is a warning on the adjustable
frequency drive in Hex. See Warning word, extended
status word and alarm word.
Parameter 541, Extended status word:
Gives whether there is a warning on the adjustable
frequency drive in Hex code. See Warning word,
extended status word and alarm word.
Parameter 544, Pulse count:
This parameter can be read out via the LCP display
(009-012). When you run with counter stop, this
parameter enables you, either with or without reset, to
read the number of pulses registered by the device.
The highest frequency is 67.6 kHz, while the lowest is 5
Hz. The counter is reset when counter stop is restarted.
Parameter 532, Pulse reference [Hz]:
Gives a pulse frequency in Hz connected to terminal 33.
560 N2 Override release time
(N2 OVER.REL.TIME)
Parameter 533, External reference:
Gives the sum of external references as a percentage
Value:
1 - 65534 (OFF) sec.
(sum of analog/pulse/serial communication) in
the range from Minimum reference, Ref
Maximum reference, Ref
MAX
.
Parameter 534, Status word:
Gives the present status word for the adjustable
frequency drive in Hex. See Serial communication
for the VLT 2800.
Parameter 535, Bus feedback:
Allows wrinting of a bus feedback value which will
then form part of the feedback handling.
MIN
to
Function:
In this parameter, the maximum time is set which
is expected to pass between the receipt of two N2
telegrams in a row. If this time is exceeded, the serial
communication is assumed to have stopped and
all points in the N2 point-map which are overridden
will be released in the order below:
1. Release Analog Outputs from point
address (NPA) 0 to 255.
2. Release Binary Outputs from point address
(NPA) 0 to 255.
Parameter 537, Inverter temperature:
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
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✭ OFF
Page 84
3. Release Internal Floating Points from point
address (NPA) 0 to 255.
4. Release Internal Integer Points from point
address (NPA) 0 to 255.
5. Release Internal Byte points from point
address (NPA) 0 to 255.
Description of choice:
Set the required time.
561 Protocol
(PROTOCOL)
Value:
✭FC protocol (FC PROTOKOL)
Metasys N2 (METASYS N2)
Function:
There is a choice of two different protocols.
VLT® 2800 Series
[1]
[2]
Description of choice:
Select the required control word protocol.
For further information about using the Metasys
N2 Protocol see MG91C1XX.
580-582 Defined parameters
(DEFINED PNU’S)
Value:
Read only
Function:
The three parameters hold a list of all the parameters
that are defined in the VLT 2800. It is possible to read
single elements of the list by using the corresponding
subindex. The subindexes start at 1 and follow
the order of the parameter numbers.
Each parameter holds up to 116 elements
(parameter numbers).
When a 0 is returned as parameter number the list ends.
Programming
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VLT® 2800 Series
■Technical functions
600-605 Operating Data
Value:
Par. no. Description Display text Unit Range
600 Operating hours (OPERATING HOURS) Hours 0-130,000.0
601 Hours run (RUNNING HOURS) Hours 0-130,000.0
602 kWh counter (KWH COUNTER) kWh Depends on unit
603 Number of power-ups (POWER UPS) Number of times 0-9999
604 Number of
overtemperatures
605 Number of overvoltages (OVER VOLTS) Number of times 0-9999
(OVER TEMPS) Number of times 0-9999
Function:
These parameters can be read out via the serial
communication port and the LCP control unit.
Description of choice:
Parameter 600, Operating hours:
Gives the number of hours the adjustable frequency
drive has been operating. The value is saved
every hour and when there is an AC line failure.
This value cannot be reset.
Parameter 601, Hours run:
Gives the number of hours the motor has been
operating since the reset in parameter 619 Reset of
hours-run counter. The value is saved every hour
and when there is an AC line failure.
Parameter 602, kWh counter:
Gives the adjustable frequency drive’s output energy
in kWh. The calculation is based on the mean kW
value over one hour. This value can be reset using
parameter 618 Reset of kWh counter.
Range: 0 - depends on unit.
Parameter 603, Number of power-ups:
Gives the number of power-ups of the supply voltage
undertaken on the adjustable frequency drive.
Parameter 604, Number of overtemperatures:
Gives the number of overtemperature faults
that have been registered on the adjustable
frequency drive’s heatsink.
Parameter 605, Number of overvoltages:
Gives the number of overvoltages of the intermediate
circuit voltage in the adjustable frequency drive. This is
only counted when Alarm 7 Overvoltage is active.
NOTE
Parameters 615-617 Fault log cannot be read
out via the integral control unit.
615 Fault log: Error code
(F.LOG: ERROR COD)
Value:
[Index 1 - 10] Error code: 0 - 99
Function:
In this parameter it is possible to see the reason
for a trip (cut-out of the variable frequency drive)
occurring. 10 [1-10] log values are defined.
The lowest log number [1] contains the latest/most
recently saved data value. The highest log number [10]
contains the oldest data value saved. If a trip occurs,
it is possible to see the cause, time and a possible
value of the output current or output voltage.
Description of choice:
Given as a fault code, in which the number refers to a
table. See the table in Warnings/alarm messages.
616 Fault log: Time
(F.LOG: TIME)
Value:
[Index 1 - 10] Hours: 0 - 130,000.0
Function:
In this parameter it is possible to see the total number
of operating hours in connection with the last 10 trips.
10 [1-10] log values are denoted. The lowest
log number [1] contains the latest/most recently
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
saved data value, and the highest log number
[10] contains the oldest data value.
Description of choice:
Read out as one value.
617 Fault log: Value
(F.LOG: VALUE)
Value:
[Index 1 - 10] Value: 0 - 9999
Function:
In this parameter it is possible to see at which value a
trip occurred. The unit of the value depends on which
alarm is active in parameter 615 Fault log: Fault code .
Description of choice:
Read out as one value.
618 Reset of kWh counter
(RESET KWH COUNT)
Value:
✭No reset (DO NOT RESET)
Reset (RESET COUNTER)
Function:
Resetting parameter 602 kWh counter to zero.
[0]
[1]
Description of choice:
If Reset [1] is selected and you press the [OK] key,
the variable frequency drive’s parameter 601 is
reset to zero Hours run. This parameter cannot
be selected via serial communication.
NOTE
When the [OK] key is activated the
parameter is reset to zero.
620 Operation Mode
(OPERATION MODE)
Value:
✭Normal operation (NORMAL OPERATION)
Control card test (CONTROL CARD TEST)
Initialize (INITIALIZE)
Function:
In addition to its normal function, this parameter
can be used to test the control card.
There is also the opportunity to perform an
initialization at the factory setting for all parameters
in all Setups, with the exception of parameters
500 Address, 501 Baudrate, 600-605 Operating
data and 615-617 Fault log.
Description of choice:
Normal function [0] is used for normal
operation of the motor.
[0]
[2]
[3]
Description of choice:
If Reset [1]is selected and you press the [OK]
key, the variable frequency drive’s kWh counter
is reset to zero. This parameter cannot be
selected via serial communication.
NOTE
When the [OK] key is activated, the
counter is reset to zero.
619 RESET RUNNING HOURS COUNTER
(RESET RUN. HOUR)
Value:
✭No reset (DO NOT RESET)
Reset (RESET COUNTER)
Function:
Resetting of parameter 601 Hours run to zero.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A8.22 - VLT is a registered Danfoss trademark
[0]
[1]
Control card test [2] is selected if you wish to check
the control card’s analog/digital inputs, analog/digital
outputs, relay outputs and 10 V and 24 V voltages.
The test is performed as follows:
27 - 29 - 33 - 46 are connected.
50 - 53 are connected.
42 - 60 are connected.
12 - relay terminal 01 is connected.
18 - relay terminal 02 is connected.
19 - relay terminal 03 is connected.
See also the DeviceNet manual MG.90.BX.YY
for further details.
Programming
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Use the following procedure for the control card test:
1. Select control card test.
2. Disconnect the AC line voltage and wait until the
light in the display has disappeared.
3. Mount according to drawing and description.
4. Connect the AC line voltage.
5. The adjustable frequency drive automatically
undertakes a test of the control card.
If the adjustable frequency drive displays a fault code
from 37-45, the control card test has failed. Change the
control card to start up the adjustable frequency drive.
If the adjustable frequency drive comes into Display
mode, the test is OK. Remove the test connector
and the adjustable frequency drive is ready for
operation. Parameter 620 Operating mode is
automatically set to Normal operation [0].
VLT® 2800 Series
Initialization [3] is selected if you wish to use
the unit’s factory setting.
Procedure for initialization:
1. Select Initialization [3].
2. Disconnect the AC line voltage and wait until the
light in the display has disappeared.
3. Connect the AC line voltage.
4. An initialization is performed in all parameters
in all Setups, with the exception of parameters
500 Address, 501 Baudrate, 600-605 Operating
data and 615-617 Fault log.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
621-642 Nameplate
Value:
Par.
no
621 Unit type (DRIVE TYPE)
624 Software version (SOFTWARE VERSION)
625 LCP identification no. (LCP VERSION)
626 Database identification no. (DATABASE VER.)
627 Power parts version (POWER UNIT DB ID)
628 Application option type (APP. OPTION)
630 Communication option type (COM. OPTION)
632 BMC software identification (BMC-SOFTWARE ID)
634 Unit identification for communication (UNIT ID)
635 Software parts no. (SW. PART NO.)
640 Software version (SOFTWARE VERSION)
641 BMC-software identification (BMC2 SW)
642 Power card identification (POWER ID)
Description
Nameplate
Display text
Function:
The unit’s main data can be read out from parameters
621 to 635 Nameplate using the optional LCP 2 control
unit or serial communication. Parameters 640 - 642
can also be seen on the unit’s integral display.
Description of choice:
Parameter 621 Nameplate: Unit type:
Gives unit size and AC line voltage.
Example: VLT 2811 380-480 V.
Parameter 624 Nameplate: Software version no.:
The unit’s present software version number
appears here.
Example: V 1.00
Parameter 625 Nameplate: LCP ID number:
The ID number of the unit’s LCP appears here.
Example: ID 1.42 2 kB
Parameter 626 Nameplate: Database ID number:
The ID number of the software’s database appears here.
Example: ID 1.14.
Here you can see which types of communication
options are installed in the adjustable frequency drive.
Programming
Parameter 627 Nameplate: Power section version:
The ID number of the unit’s power section appear
Example: ID 1.15.
Parameter 628 Nameplate: Application option type:
Here you can see which types of application options
are installed in the adjustable frequency drive.
Parameter 630 Nameplate: Communication
option type:
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.28.A8.22 - VLT is a registered Danfoss trademark
shere.
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Parameter 632 Nameplate: BMC software
identification:
The ID number of the BMC software appears here.
Parameter 634 Nameplate: Unit identification
for communication:
The ID number for communication appears here.
Parameter 635 Nameplate: Software section no.:
The software section number appears here.
Parameter 640 Nameplate: Software version:
The unit’s present software version number
appears here. Example: 1.00
Parameter 641 Nameplate: BMC software
identification:
The ID number of the BMC software appears here.
Parameter 642 Nameplate: Power card identification:
The ID number of the unit’s power part appears
here. Example: 1.15
VLT® 2800 Series
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
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VLT® 2800 Series
■Warnings/alarm messages and corrective actions
The table below gives the drive’s warnings and
alarms and indicates whether the fault trip locks the
drive. After a Trip Lock Fault, the input power must
be removed, the cause of the fault corrected, and
input power restored to reset the drive. A Trip can
be reset manually in any one of three ways.
1. Pressing the keypad key RESET
2. A digital input
3. Serial communication
In addition, an automatic reset may be selected
in parameter 405, Reset function which will
reset all non-trip lock faults.
Wherever an "X" is placed under both Warning and
Alarm in the table below, this means that a Warning
precedes the Alarm. It can also mean that it is possible
to program whether a given fault is to result in a
Warning or an Alarm. This is possible, for example,
through parameter 128, Motor thermal protection.
After a trip, the motor will be coasting and the drive’s
Alarm and Warning indications will flash. If the fault is
removed, only the Alarm will flash. After a reset, the
drive will be ready to start operation again.
In the following detailed descriptions of warning
and alarm messages, corrective actions to resolve
the condition are recommended.
No. Description Warning Alarm Trip
locked
2Livezeroerror(LIVEZEROERROR) X X X
4 AClinephaseloss(ACLINEPHASELOSS) X X X
5 Voltage warning high (DC LINK VOLTAGE HIGH) X
6 Voltage warning low (DC LINK VOLTAGE LOW) X
7 Overvoltage (DC LINK OVERVOLT) X X X
8 Undervoltage (DC LINK UNDERVOLT) X X X
9 Inverter overload (INVERTER TIME) X X
10 Motor overloaded ( MOTOR, TIME) X X
11 Motor thermistor (MOTOR THERMISTOR) X X
12 Current limit (CURRENT LIMIT) X X
13 Overcurrent (OVERCURRENT) X X X
14 Ground fault (GROUND FAULT) X X
15 Switch mode fault (SWITCH MODE FAULT) X X
16 Short-circuit (CURR. SHORT CIRCUIT) X X
17 Serial communication timeout (STD BUS TIMEOUT) X X
18 HPFB bus timeout (HPFB TIMEOUT) X X
33 Out of frequency range (OUT FREQ RNG/ROT LIM) X
34 HPFB communication fault (PROFIBUS OPT. FAULT) X X
35 Inrush fault (INRUSH FAULT) X X
36 Overtemperature (OVERTEMPERATURE) X X
37-45 Internal fault (INTERNAL FAULT) X X
50 AMT not possible X
51 AMT fault re. nameplate data (AMT TYPE.DATA FAULT) X
54 AMTwrongmotor(AMTWRONGMOTOR) X
55 AMT timeout (AMT TIMEOUT) X
56 AMT warning during AMT (AMT WARN. DURING AMT) X
99 Locked (LOCKED) X
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LED indication
Warning yellow
Alarm red
Trip locked yellow and red
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VLT® 2800 Series
WARNING/ALARM 2: Live zero fault
The voltage or current signal on terminal 53 or
60 is below 50% of the preset value in parameter
309 or 315 Terminal, min. scaling.
WARNING/ALARM 4: AC line phase fault
Missing phase on AC line supply side.
Check the supply voltage to the adjustable frequency
drive. This fault is only active in 3-phase AC line.
WARNING 5: Voltage warning high
If the DC bus voltage (VDC) is higher than
Voltage warning high, the adjustable frequency
drive will give a warning and the motor will
continue to operate unchanged.
Check whether the supply voltage matches the rating
of the adjustable frequency drive. (See Technical data.)
IftheVDCremainsabovethevoltagewarninglimit,the
inverter will trip after a fixed period of time. The time
depends on the unit and is set at 5 - 10 sec.
NOTE: The adjustable frequency drive will trip with
an alarm 7 (overvoltage). A voltage warning can also
occur if the motor frequency is reduced too quickly
due to the ramp down time being too short.
WARNING 6: Voltage warning low
If the DC bus voltage (VDC) is lower than Voltage warn
low, the adjustable frequency drive will give a warning
and the motor will continue to operate unchanged.
Check whether the supply voltage matches the rating
of the adjustable frequency drive. (See Technical data.)
NOTE: The adjustable frequency drive will t
an alarm 5 (undervoltage). When the adjustable
frequency drive is switched off, a warning 6 (and
warning 8) is displayed briefly.
WARNING/ALARM 7: Overvoltage
If the DC bus voltage (VDC) is higher than the inverter’s
Overvoltage limit, the inverter will switch off until the
VDC once more falls below the overvoltage limit. If the
VDC remains above the overvoltage limit, the inverter
will trip after a fixed period of time. The time depends
on the unit and is set at 5 - 10 sec. When the inverter
is switched off a trip reset is generated.
rip with
DC bus can occur if the motor frequency is reduced
tooquicklyduetoramp-downtimebeingtooshort.
WARNING/ALARM 8: Undervoltage
IftheDCbusvoltageislowerthantheinverter’s
Undervoltage limit, the inverter will switch off until the
VDConcemoregoesabovetheundervoltagelimit.
Check whether the supply voltage fits the adjustable
frequency drive. (See Technical data.) If the VDC
remains under the undervoltage limit, the inverter will
trip after a fixed period of time. The time depends on
the unit and is set at 1 - 3 sec. When the adjustable
frequency drive is switched off an alarm 8 (and warning
6) is displayed briefly and a trip reset is generated.
NOTE: Voltage warning low (warning 6) will thus
also be able to generate an alarm 8.
WARNING/ALARM 9: Inverter overload
Electronic thermal inverter protection indicates that the
adjustable frequency drive is close to disconnecting due
to overloading (output current too high for too long). The
counter for electronic thermal inverter protection gives
a warning at 98% and trips at 100% giving an alarm.
The adjustable frequency drive cannot be reset
until the counter is below 90%. Remove the
overload condition to the drive.
WARNING/ALARM 10: Motor overloaded
According to the electronic thermal inverter protection
the motor is too hot. In parameter 128 the use
select whether the VLT adjustable frequency drive
should emit a warning or an alarm when the counter
reaches 100%. This fault is due to the mot
overloaded by more than 100% for too long.
Check that motor parameters 102-106 are set correctly.
WARNING/ALARM 11: Motor thermistor
The motor is too hot or the thermistor/thermistor
connection is cut off. Paramete
protection allowsachoiceofwhethertheadjustable
frequency drive is to give a warning or an alarm.
Check that the PTC thermistor has been correctly
connected between terminal 18, 19, 27 or 29 (digital
input) and terminal 50 (+10 V supply).
r 128 Motor thermal
r can
or being
NOTE: Voltage warning high (warning 5) will thus also
be able to generate an alarm 7. An overvoltage in the
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WARNING/ALARM 12: Current limit
The output current is greater than the value in
parameter 221 Current Limit I
Theadjustablefrequencydrivewilltripaftera
set period of time, as selected in parameter
409 Trip delay overcurrent .
WARNING/ALARM 13: Overcurrent
The inverter’s peak current limit (approx. 200% of
rated output current) has been exceeded. The warning
will last for approx. 1-2 secs, and the adjustable
frequency drive will then trip and give an alarm.
Switch off the adjustable frequency drive and check
that the motor shaft can be turned and that the motor
size fits the adjustable frequency drive.
LIM
.
VLT® 2800 Series
WARNING/ALARM 18: HPFB bus timeout
There is no serial communication to the adjustable
frequency drive’s communication option card.
The warning will only be active when parameter 804 Bus
time interval function has been set to a value other than
OFF. If parameter 804 Bus time interval function has
been set to Stop and trip, it will first give a warning and
then ramp down, trip and issue an alarm. Parameter
803 Bus time interval could possibly be increased.
WARNING 33: Out of frequency range
This warning is active if the output frequency has
reached Output frequency low limit (parameter 201)
or Output frequency high limit (parameter 202).
ALARM: 14: Ground fault
There is a discharge from the output phases to ground,
either in the cable between the adjustable frequency
driveandthemotor,orinthemotor.
Turn off the adjustable frequency drive and
remove the ground fault.
ALARM: 15: Switch mode fault
Fault in switch mode power supply (internal supply).
Contact your Danfoss supplier.
ALARM: 16: Short-circuit
There is a short-circuit on the motor terminals
or in the motor.
Disconnect the AC line supply to the adjustable
frequency drive and remove the short-circuit.
WARNING/ALARM 17: Serial communication timeout
There is no serial communication to the
adjustable frequency drive.
The warning will only be active when parameter 514 Bus
time interval function has been set to a value other than
OFF. If parameter 514 Bus time interval function has
been set to Stop and trip [5], it will first give a warning
and then until it trips and issues an alarm. Parameter
513 Bus time interval could possibly be increased.
If the VLT adjustable frequency drive is in a mode other
than Process regulation, closed loop (parameter 100)
the warning will be active in the display. If the VLT
adjustable frequency drive is in a mode other than
Process regulation, closed loop bit 008000 Out of
frequency range in the extended status word will be
active, but there will be no warning in the display.
WARNING/ALARM:34: HPFB communication fault
Communication fault only occurs in Profibus versions.
ALARM 35: Inrush fault
This alarm appears when the adjustable frequency
drive has been connected to the AC line supply
too many times within 1 minute.
WARNING/ALARM 36: Overtemperature
If the temperature of the heatsink moves above
167°F - 185°F (75° - 85°C), depending on the unit,
the adjustable frequency drive gives a warning,
and the motor continues to operate unchanged.
If the temperature continues to rise, the switching
frequency is reduced automatically.
See Temperature-dependent switching frequency .
If the temperature of the heatsink rises above 199°F
- 212°F (92 - 100 °C), depending on the unit, the
adjustable frequency drive will trip.
The temperature fault cannot be reset until the
temperature of the heatsink has dropped to below
158°F (70 °C). The tolerance is ±9°F (±5 °C). The
temperature can be caused by the following:
- Ambient temperature too high.
- Motor cable too long.
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VLT® 2800 Series
- AC line voltage too high.
ALARMS 37-45: Internal faults
ALARM 37: Internal fault number 0
Communication fault between control card and BMC2.
ALARM 38: Internal fault number 1
Flash EEPROM fault on control card.
ALARM 39: Internal fault number 2
RAM fault on control card.
ALARM 40: Internal fault number 3
Calibration constant error in EEPROM.
ALARM 41: Internal fault number 4
Data values error in EEPROM.
ALARM 42: Internal fault number 5
Fault in motor parameter database.
ALARM 43: Internal fault number 6
General power card fault.
ALARM 44: Iinternal fault number 7
Minimum software version of control card or BMC2.
ALARMS 50-56: AMT faults
ALARM 50: AMT not possible
One of the following three possibilities can occur:
- The calculated R
- The motor current in at least one of the
motor phases is too low.
- The motor in use is too small for AMT
calculations to be performed.
ALARM 51: AMT Fault re. nameplate data
There is inconsistency in the registered motor data.
Check the motor data for the relevant setup.
ALARM 52: AMT faulty motor phase
The motor current in at least one of the motor
phases is too low.
ALARM 55: AMT timeout
The calculations are taking too long, possibly
due to noise in the motor cables.
ALARM 56: AMT warning during AMT
An adjustable frequency drive warning is given
while AMT is being performed.
value falls outside permitted limits.
S
ALARM 45: Internal fault number 8
I/O fault (digital input/output, relay or analog
input/output).
NOTE
When restarting after an alarm 38-45,
the VLT adjustable frequency drive will
display an alarm 37. In parameter 615 the
actual alarm code can be read.
WARNING 99: Locked
The control panel functions have been locked
via parameter 018.
Alarm/warning limits:
Without brake With brake Without brake With brake
VLT 2800 1 / 3 x 200 - 240 V
[VDC]
1 / 3 x 200 - 240 V
[VDC]
3x380-480V
[VDC]
3 x 380 - 480 V
[VDC]
Undervoltage 215 215 410 410
Voltage warning low 230 230 440 440
Voltage warning high 385 400 765 800
Overvoltage 410 410 820 820
Thevoltagesstatedaretheintermediatecircuit
voltage of the frequency converter with a tolerance
of ± 5 %. The corresponding line voltage is the
intermediate circuit voltage divided by 1.35.
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VLT® 2800 Series
■Warning words, extended status words
and alarmwords
Warning words, status words and alarm words appear
in the display in Hex format. If there are several
warnings, status words or alarms, a total of all will be
displayed. Warning words, status words and alarm
words can also be read out using the serial bus in
parameters 540, 541 and 538 respectively.
Bit (Hex) Warning words
000008 HPFB bus timeout
000010 Standard bus timeout
000040 Current limit
000080 Motor thermistor
000100 Motor overload
000200 Inverter overload
000400 Undervolt
000800 Overvolt
001000 Voltage warning low
002000 Voltage warning high
004000 Phase loss
010000 Live zero error
400000 Out of frequency range
800000 Profibus communication fault
40000000 Switch mode warning
80000000 Heat sink temperature high
Bit (Hex) Alarm words
000002 Triplock
000004 AMT tuning fail
000040 HPFB bus timeout
000080 Standard bus timeout
000100 Curr. short circuit
000200 Switch mode fault
000400 Ground fault
000800 Overcurrent
002000 Motor thermistor
004000 Motor overload
008000 Inverter overload
010000 Undervolt
020000 Overvolt
040000 Phase loss
080000 Live zero error
100000 Heat sink temperature too high
2000000 Profibus communication fault
8000000 Inrush fault
10000000 Internal fault
Bit (Hex) Extended status words
000001 Ramping
000002 AMT running
000004 Start forw./reverse
000008 Slow down
000010 Catch-up
000020 Feedback high
000040 Feedback low
000080 Output current high
000100 Output current low
000200 Output frequency high
000400 Output frequency low
002000 Braking
008000 Out of frequency range
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VLT® 2800 Series
■Special conditions
■Extreme environments
An adjustable frequency drive contains a number
of mechanical and electronic components which
are vulnerable to environmental impact.
Do not install the adjustable frequency drive
in environments where liquids, particles
or gases in the air would damage the
electronics of the drive. Take all necessary measures
to protect the drive. There is a risk of fault trips
and reduced service life of the drive.
Liquids carried through the air can condense in the
adjustable frequency drive. Liquids may facilitate
galvanic corrosion of components and metal parts.
Steam, oil and brine may also cause corrosion of
components and metal parts. In these areas, it
is recommended to install units in cabinets. As a
minimum, cabinets should meet NEMA 12.
P
articles in the air, such as dust, may lead to
mechanical, electrical and thermal faults in the
adjustable frequency drive. A typical indicator
of too many particles in the air is dust around
the fan. In very dusty areas, mounting the drive
in a cabinet is recommended. As a minimum,
cabinets should meet NEMA 12.
A
ggressive gases, such as sulfur, nitrogen and
chlorine compounds, together with high humidity and
temperature, facilitate possible chemical processes
on the components of the adjustable frequency
drive. These chemical processes quickly damage the
electronics. In these areas, mounting in a cabinet with
fresh-air circulation is recommended, thereby ensuring
that aggressive gases are kept away from the drive.
NOTE
Installation of adjustable frequency drives
in extreme environments increases the risk
of down-time, and considerable reduction
of the service life of the drive.
Before the adjustable frequency drive is installed, check
whether there are liquids, particles or gases in the air.
Examine existing installations in the same environment.
Typical indicators of harmful airborne liquids are water or
oil on metal parts or corrosion. Too many dust particles
are typically observed on top of cabinets. Indication
of aggressive gases in the air are black copper rails
and cable ends on existing electrical installations.
■Galvanic isolation (PELV)
PELV (Protective Extra-Low Voltage) separation is
achieved with galvanic separators between control
circuits and circuits connected to the AC line potential.
These separators meet the requirements for increased
isolation in standard EN 50 178. Installation must be in
accordance with local and national PELV regulations.
All control terminals, terminals for serial communication
and relay terminals are safely separated from the
AC line potential, i.e. they comply with the PELV
requirements. Circuits that are connected to control
terminals 12, 18, 19, 20, 27, 29, 33, 42, 46, 50, 55,
53 and 60 are galvanically connected to one another.
Serial communication connected to terminals 67 70 is galvanically isolated from the control terminals,
although this is only a functional isolation.
The relay contacts in terminals 1 - 3 are separated
from the other control circuits with increased isolation,
i.e. these comply with PELV even if there is AC
line potential in the relay terminals.
The circuit elements described below form the safe
electric separation. They fulfill the requirements
for increased isolation and associated testing
pursuant to EN 50 178.
1. Optical isolation between basic motor con
and control card.
2. Optical isolation between basic motor control
and control card.
3. Isolation between the control card and
the power part.
4. Relay contacts and terminals relating to
circuits on the control card.
PELV isolation of the control card is guaranteed
under the following conditions:
- TT network with maximum 300 Vrms between
phase and ground.
- TN network with maximum 300 Vrms between
phase and ground.
- IT network with maximum 400 Vrms between
phase and ground.
At higher voltages only SELV is achieved.
trol
other
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■UL Standard
This device is UL-approved.
VLT® 2800 Series
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VLT® 2800 Series
■General technical data
Electrical supply (L1, L2, L3):
Supply voltage VLT 2803-2815 220-240 V (N, L1) ......................................................... 1 x 220/230/240 V ±10%
Supply voltage FCD 2803-2840 200-240 V ...................................................... 3 x 200/208/220/230/240 V ±10%
Supply voltage FCD 2805-2882 380-480 V ...................................................... 3 x 380/400/415/440/480 V ±10%
Supply frequency .......................................................................................................................... 50/60 Hz ± 3 Hz
Max. imbalance on supply voltage .......................................................................... ± 2.0% of rated supply voltage
True Power Factor (λ) ................................................................................................................ 0.90 / at rated load
Displacement Power Factor (cos ϕ) ............................................................................................ near unity (> 0.98)
Number of connections at supply input L1, L2, L3 ............................................................................. 2 times/min.
Max. short-circuit value .......................................................................................................................... 100,000A
See Special Conditions section in the Design Guide
Output data (U, V, W):
Output voltage .............................................................................................................. 0 - 100% of supply voltage
Output frequency ........................................................................................................... 0.2 - 132 Hz, 1 - 1000 Hz
Rated motor voltage, 200-240 V units .............................................................................. 200/208/220/230/240V
Rated motor voltage, 380-480 V units ...................................................................... 380/400/415/440/460/480 V
Rated motor frequency ............................................................................................................................ 50/60 Hz
Switching on output ................................................................................................................................. Unlimited
Ramp times .................................................................................................................................. 0.02 - 3600 sec.
Torque characteristics:
Starting torque (parameter 101 Torque characteristic = Continuous torque) .................................. 160% in 1 min.
Starting torque (parameter 101 Torque characteristics = Variable torque) ...................................... 160% in 1 min.
Starting torque (parameter 119 High starting torque ) ................................................................ 180% for 0.5 sec.
Overload torque (parameter 101 Torque characteristic = Continuous torque) ............................................... 160%
Overload torque (parameter 101 Torque characteristic = Variable torque) ..................................................... 160%
*
*
*
*
*
*Percentage relates to adjustable frequency drive’s nominal current.
Control card, digital inputs:
Number of programmable digital inputs ................................................................................................................ 5
Terminal number ......................................................................................................................... 18, 19, 27, 29, 33
Voltage level ........................................................................................................... 0 - 24 VDC (PNP positive logic)
Voltage level, logic ’0’ ................................................................................................................................<5VDC
Voltage level, logic ’1’ .............................................................................................................................. > 10 VDC
Maximum voltage on input ......................................................................................................................... 28 VDC
Input resistance, R
(terminals 18, 19, 27, 29) .................................................................................... approx. 4 k
i
Input resistance, Ri(terminal 33) ...................................................................................................... approx. 2 k
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage
terminals. See section entitled Galvanic Isolation.
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VLT® 2800 Series
Control card, analog inputs:
Number of analog voltage inputs .................................................................................................................. 1 pcs.
Terminal number ................................................................................................................................................. 53
Voltage level .......................................................................................................................... 0 - 10 V DC (scalable)
Input resistance, R
Max. voltage ................................................................................................................................................... 20 V
Number of analog current inputs ................................................................................................................... 1 pcs.
Terminal number ................................................................................................................................................. 60
Current level ........................................................................................................................ 0/4 - 20 mA (scalable)
Input resistance, R
Max. current ................................................................................................................................................ 30 mA
Resolution for analog inputs ........................................................................................................................... 10 bit
Accuracy of analog inputs .............................................................................................. Max. error 1% of full scale
Scan interval .......................................................................................................................................... 13.3 msec
The analog inputs are galvanically isolated from the supply voltage (PELV) and other highvoltage terminals. See section entitled Galvanic Isolation.
Control card, pulse inputs:
Number of programmable pulse inputs ................................................................................................................. 1
Terminal number ................................................................................................................................................. 33
Max. frequency on terminal 33 ............................................................................................... 67.6 kHz (Push-pull)
Max. frequency on terminal 33 ............................................................................................. 5 kHz (open collector)
Min. frequency on terminal 33 ........................................................................................................................ 4 Hz
Voltage level ........................................................................................................... 0 - 24 VDC (PNP positive logic)
Voltage level, logic ’0’ ................................................................................................................................<5VDC
Voltage level, logic ’1’ .............................................................................................................................. > 10 VDC
Maximum voltage on input ......................................................................................................................... 28 VDC
Input resistance, R
Scan interval .......................................................................................................................................... 13.3 msec
Resolution ..................................................................................................................................................... 10 bit
Accuracy (100 Hz - 1 kHz) terminal 33 ....................................................................... Max. error: 0.5% of full scale
Accuracy (1 kHz - 67.6 kHz) terminal 33 .................................................................... Max. error: 0.1% of full scale
The pulse input (terminal 33) is galvanically isolated from the supply voltage (PELV) and other
high-voltage terminals. See section entitled Galvanic Isolation.
........................................................................................................................ approx. 10 k
i
......................................................................................................................... approx.300
i
.......................................................................................................................... approx. 2 k
i
Control card, digital/frequency output:
Number of programmable digital/pulse outputs ........................................................................................... 1 pcs.
Terminal number ................................................................................................................................................. 46
Voltage level at digital/frequency output ............................................................................. 0 - 24 V DC (O.C PNP)
Max. output current at digital/frequency output ......................................................................................... 25 mA.
Max. load at digital/frequency output ............................................................................................................ 1 k
Max. capacity at frequency output ................................................................................................................ 10 nF
Minimum output frequency at frequency output ........................................................................................... 16 Hz
Maximum output frequency at frequency output .........................................................................................10kHz
Accuracy on frequency output ................................................................................. Max. error: 0.2 % of full scale
Resolution on frequency output ..................................................................................................................... 10 bit
The digital output is galvanically isolated from the supply voltage (PELV) and other high-voltage
terminals. See section entitled Galvonic Isolation.
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Control card, analog output:
Number of programmable analog outputs ............................................................................................................. 1
Terminal number ................................................................................................................................................. 42
Current range at analog output ............................................................................................................ 0/4 - 20 mA
Max. load to common at analog output ....................................................................................................... 500
Accuracy on analog output ....................................................................................... Max. error: 1.5 % of full scale
Resolution on analog output .......................................................................................................................... 10 bit
The analog output is galvonically isolated from the supply voltage (PELV) and other highvoltage terminals. See section entitled Galvonic Isolation.
Control card, 24 V DC supply:
Terminal number ................................................................................................................................................. 12
Max. load .................................................................................................................................................. 130 mA
The 24 VDC supply is galvanically isolated from the supply voltage (PELV) , but has the same potential as
the analog and digital inputs and outputs. See section entitled Galvanic Isolation.
Control card, 10 V DC output:
Terminal number ................................................................................................................................................. 50
Output voltage .................................................................................................................................. 10.5 V ±0.5 V
Max. load .................................................................................................................................................... 15 mA
The 10 V DC supply is galvonically isolated from the supply voltage (PELV) and other highvoltage terminals. See section entitled Galvonic Isolation.
Control card, RS 485 serial communication:
Terminal number ......................................................................................................... 68 (TX+, RX+), 69 (TX-, RX-)
Terminal number 67 ....................................................................................................................................... + 5 V
Terminal number 70 ..................................................................................... Common for terminals 67, 68 and 69
Full galvanic isolation. See section entitled Galvanic Isolation.
For DeviceNet units, see VLT 2800 DeviceNet manual, MG.90.BX.YY.
Relay outputs:
Number of programmable relay outputs ................................................................................................................ 1
Terminal number, control card ............................................................................................. 1-3 (break), 1-2 (make)
Max. terminal load (AC) on 1-3, 1-2, control card ........................................................................... 240 V AC, 2 A
Min. terminal load on 1-3, 1-2, control card ...................................................... 24 V DC 10 mA, 24 V AC 100 mA
The relay contact is separated from the rest of the circuit by strengthened isolation.
See section entitled Galvanic Isolation.
Cable lengths and cross sections:
Max. motor cable length, screened/armored cable ............................................................................ 130 ft (40 m)
Max. motor cable length, unscreened/unarmored cable .................................................................... 250 ft (75 m)
Max. motor cable length, screened/armored cable and motor coil .................................................... 325 ft (100 m)
Max. motor cable length, unscreened/unarmored cable and motor coil ........................................... 650 ft (200 m)
Max. motor cable length, screened/armored cable and RFI/1B filter ..................................... 200 V, 325 ft (100 m)
Max. motor cable length, screened/armored cable and RFI/1B filter ......................................... 400 V, 80 ft (25 m)
Max. motor cable length, screened/armored cable and RFI 1B/LC filter .................................... 400 V, 80 ft (25 m)
Max. cross section to motor, see next section.
Max. cross section to control cables, rigid cable ................................................ 1.5 mm
Max. cross section to control cables, flexible cable ....................................................................... 1 mm
2
/16AWG(2x0.75mm2)
2
/18 AWG
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Max. cross section to control cables, cable with enclosed core .................................................. 0.5 mm2/20 AWG
When complying with EN 55011 1A and EN 55011 1B the motor cable must bereduced in certain instances.
Control characteristics:
Frequency range ............................................................................................................ 0.2 - 132 Hz, 1 - 1000 Hz
Resolution of output frequency ......................................................................................... 0.013 Hz, 0.2 - 1000 Hz
Repeat accuracy of Precise start/stop (terminals 18, 19) .................................................................... ≤ ± 0.5 msec
System response time (terminals 18, 19, 27, 29, 33) .......................................................................... ≤ 26.6 msec
Speed control range (open loop) .................................................................................. 1:15 of synchronous speed
Speed control range (closed loop) .............................................................................. 1:120 of synchronous speed
Speed accuracy (open loop) ....................................................................... 90 - 3600 rpm: Max. error of ±23 rpm
Speed accuracy (closed loop) .................................................................... 30 - 3600 rpm: Max. error of ±7.5 rpm
All control characteristics are based on a 4-pole asynchronous motor
Surroundings:
Enclosure ....................................................................................................................................................... IP 20
Enclosure with options ............................................................................................................................... NEMA 1
Vibration test ............................................................................................................................................ 0.037 oz
Max. relative humidity .................................................................................................. 5% - 93% during operation
Ambient temperature .................................................. Max. 122 °F (45 °C) (24-hour average max. 113 °F (40 °C))
Derating for ambient temperature, see special conditions in the Design Guide
Min. ambient temperature during full-scale operation .......................................................................... 32 °F (0 °C)
Min. ambient temperature at reduced performance ......................................................................... 14 °F (-10 °C)
Temperature during storage/transport ............................................................ -13 - +150/160 °F (-25 - +65/70 °C)
Max. altitude above sea level ........................................................................................................ 3280 ft (1000 m)
Derating for air pressure, see special conditions in the Design Guide
EMC standards, Emission ............................................................................. EN 50081-2, EN 61800-3, EN 55011
EMC standards, Immunity .................................................................................................................................. EN
50082-1/2, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61800-3
See section on special conditions in the Design Guide
Safeguards:
• Electronic thermal motor protection against overload.
• Temperature monitoring of the power module ensures that the adjustable frequency drive cuts
out if the temperature reaches 212 °F (100 °C). An overload temperature cannot be reset un
the temperature of the power module is below 160 °F (70 °C).
• The frequency converter is protected against short-circuits on motor terminals U, V, W.
• If an electrical phase is missing, the variable frequency drive will cut out.
• Monitoring of the intermediate circuit voltage ensures that the variable frequency drive cuts out
if the intermediate circuit voltage is too low or too high.
• The variable frequency drive is protected against ground fault on motor ter
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