Fantech VLT 2800 Series, VLT 2803, VLT 2840, VLT 2815, VLT 2855 Instruction Manual
...
Instruction Manual
VLT® 2800
■ 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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1
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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MG.28.A8.22 - VLT is a registered Danfoss trademark
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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3
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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5
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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7
VLT® 2800 Series
192H4720
192H4893
8
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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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9
■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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11
■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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13
■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
MG.28.A8.22 - VLT is a registered Danfoss trademark
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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15
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
16
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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
MG.28.A8.22 - VLT is a registered Danfoss trademark
17
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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19
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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21
■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
MG.28.A8.22 - VLT is a registered Danfoss trademark
Par. 316 Terminal 60, max. scaling =20mA
VLT® 2800 Series
Installation
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23
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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MG.28.A8.22 - VLT is a registered Danfoss trademark
■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.
25
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
.
MG.28.A8.22 - VLT is a registered Danfoss trademark
■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.
27
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
28
MG.28.A8.22 - VLT is a registered Danfoss trademark
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.
29
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