Frequency converters contain high voltage when
connected to AC mains input power. Installation, start up,
and maintenance should be performed by qualified
personnel only. Failure to perform installation, start up, and
maintenance by qualified personnel could result in death
or serious injury.
High Voltage
Frequency converters are connected to hazardous mains
voltages. Extreme care should be taken to protect against
shock. Only trained personnel familiar with electronic
equipment should install, start, or maintain this equipment.
WARNING
UNINTENDED START!
When the frequency converter is connected to AC mains,
the motor may start at any time. The frequency converter,
motor, and any driven equipment must be in operational
readiness. Failure to be in operational readiness when the
frequency converter is connected to AC mains could result
in death, serious injury, equipment, or property damage.
Unintended Start
When the frequency converter is connected to the AC
mains, the motor may be started by means of an external
switch, a serial bus command, an input reference signal, or
a cleared fault condition. Use appropriate cautions to
guard against an unintended start.
WARNING
DISCHARGE TIME!
Frequency converters contain DC link capacitors that can
remain charged even when AC mains is disconnected. To
avoid electrical hazards, remove AC mains from the
frequency converter and wait 20 minutes before doing any
service or repair. Failure to wait the specified time after
power has been removed prior to doing service or repair
on the unit could result in death or serious injury.
4MG16F102 - VLT® is a registered Danfoss trademark
This manual is intended to provide detailed information for
the installation and start up of the frequency converter.
provides requirements for mechanical and electrical installation, including input, motor, control and serial
communications wiring, and control terminal functions.
provides detailed procedures for start up, basic operational
programming, and functional testing. The remaining
chapters provide supplementary details. These details
include user interface, detailed programming, application
examples, start-up troubleshooting, and specifications.
2.5
Internal Controller Functions
Illustration 2.3 is a block diagram of the frequency
converter's internal components. See Table 2.2 for their
functions.
2.3 Additional Resources
Other resources are available to understand advanced
frequency converter functions and programming.
Illustration 2.3 Frequency Converter Block Diagram
®
The VLT
•
detail on working with parameters and many
application examples.
The VLT
•
detailed capabilities and functionality to design
motor control systems.
Supplemental publications and manuals are
•
available from Danfoss.
See http://www.danfoss.com/Products/Literature/
Technical+Documentation.htm for listings.
Optional equipment is available that may change
•
some of the procedures described. Reference the
instructions supplied with those options for
specific requirements. Contact the local Danfoss
supplier or visit the Danfoss website for
downloads or additional information.
2.4
Product Overview
A frequency converter is an electronic motor controller
that converts AC mains input into a variable AC waveform
output. The frequency and voltage of the output are
regulated to control the motor speed or torque. The
frequency converter can vary the speed of the motor in
response to system feedback, such as position sensors on a
conveyor belt. The frequency converter can also regulate
the motor by responding to remote commands from
external controllers.
In addition, the frequency converter monitors the system
and motor status, issues warnings or alarms for fault
conditions, starts and stops the motor, optimizes energy
efficiency, and offers many more control, monitoring, and
efficiency functions. Operation and monitoring functions
are available as status indications to an outside control
system or serial communication network.
Programming Guide provides greater
®
Design Guide is intended to provide
AreaTitleFunctions
1Mains input
2Rectifier
3DC bus
4DC reactors
5Capacitor bank
6Inverter
7Output to motor
Three-phase AC mains power
•
supply to the frequency
converter
The rectifier bridge converts
•
the AC input to DC voltage to
supply inverter power
Intermediate DC-bus circuit
•
handles the DC current
Filter the intermediate DC
•
circuit current
Prove line transient protection
•
Reduce RMS current
•
Raise the power factor
•
reflected back to the line
Reduce harmonics on the AC
•
input
Stores the DC power
•
Provides ride-through
•
protection for short power
losses
Converts the DC into a
•
controlled PWM AC waveform
for a controlled variable
output to the motor
Regulated three-phase output
•
power to the motor
6MG16F102 - VLT® is a registered Danfoss trademark
Before performing the installation it is important to plan
the installation of the frequency converter. Neglecting this
may result in extra work during and after installation.
Select the best possible operation site by considering the
following (see details on the following pages, and the
respective Design Guides):
Ambient operating temperature
•
Installation method
•
How to cool the unit
•
Position of the frequency converter
•
Cable routing
•
Ensure the power source supplies the correct
•
voltage and necessary current
Ensure that the motor current rating is within the
•
maximum current from the frequency converter
If the frequency converter is without built-in
•
fuses, ensure that the external fuses are rated
correctly.
Voltage
380-480 V At altitudes above 3 km, contact Danfoss regarding
525-600 V At altitudes above 2 km, contact Danfoss regarding
Table 3.1 Installation in High Altitudes
Altitude Restrictions
PELV
PELV.
•
rating is equal to or greater than motor full load
current for peak motor performance.
Motor size and frequency converter
•
power must match for proper overload
protection.
If frequency converter rating is less than
•
motor, full motor output cannot be
achieved.
3.3 Mechanical Installation
3.3.1 Cooling
Top and bottom clearance for air cooling must be
•
provided. Generally, 225 mm (9 in) is required.
Improper mounting can result in over heating
•
and reduced performance
Derating for temperatures starting between 45 °C
•
(113 °F) and 50 °C (122 °F) and elevation 1000 m
(3300 ft) above sea level must be considered. See
®
Design Guide for detailed information.
VLT
The high power Danfoss VLT frequency converters utilize a
back-channel cooling concept that removes heatsink
cooling air, which carries approximately 90% of the heat
out of the back channel of the frequency converters. The
back-channel air can be redirected from the panel or room
using one of the kits below.
NOTE
3.2
Pre-Installation Checklist
Before unpacking the frequency converter, ensure
•
the packaging is intact. If any damage has
occurred, immediately contact the shipping
company to claim the damage.
Before unpacking the frequency converter, locate
•
it as close as possible to the final installation site.
Compare the model number on the nameplate to
•
what was ordered to verify the proper
equipment.
Ensure each of the following are rated for the
•
same voltage:
Mains (power)
•
Frequency converter
•
Motor
•
8MG16F102 - VLT® is a registered Danfoss trademark
For ordering numbers, see the VLT High Power Drives
Selection Guide, PB.56.B1.02.
Duct cooling
A back-channel cooling kit is available to direct the
heatsink cooling air out of the panel when an IP20/chassis
frequency converters is installed in a Rittal enclosure. Use
of this kit reduces the heat in the panel and smaller door
fans can be specified on the enclosure.
Cooling out the back (top and bottom covers)
The back channel cooling air can be ventilated out of the
room so that the heat from the back channel is not
dissipated into the control room.
A door fan(s) is required on the enclosure to remove the
heat not contained in the backchannel of the frequency
converters and any additional losses generated by other
components inside the enclosure. The total required air
flow must be calculated so that the appropriate fans can
be selected.
Airflow
The necessary airflow over the heat sink must be secured.
The flow rate is shown in Table 3.2.
The fan runs for the following reasons:
AMA
•
DC Hold
•
Pre-Mag
•
DC Brake
•
60% of nominal current is exceeded
•
Specific heatsink temperature exceeded (power
•
size dependent).
Specific Power Card ambient temperature
•
exceeded (power size dependent)
Specific Control Card ambient temperature
•
exceeded
Lifting
3.3.2
Always lift the frequency converter using the dedicated
lifting eyes. Use a bar to avoid bending the lifting holes.
Illustration 3.1 Position Lifting Straps where Indicated
CAUTION
The angle from the top of the frequency converter to the
lifting cables should be 60 ° or greater.
3.4 Electrical Installation
3
3
Enclosure
protection
IP21/NEMA 1D1 and D2
IP00/Chassis
* Airflow per fan. Frame size F contains multiple fans.
Table 3.2 Airflow
FrameDoor fan(s)/top
fan
170 m3/hr (100
CFM)
D3 and D4
255 m3/hr (150
CFM)
Heatsink fan(s)
765 m3/hr
(450 CFM)
765 m3/hr
(450 CFM)
3.4.1 General Requirements
This section contains detailed instructions for wiring the
frequency converter. The following tasks are described:
Wiring the motor to the frequency converter
•
output terminals
Wiring the AC mains to the frequency converter
•
input terminals
Connecting control and serial communication
•
wiring
After power has been applied, checking input
•
and motor power; programming control terminals
for their intended functions
MG16F102 - VLT® is a registered Danfoss trademark9
Rotating shafts and electrical equipment can be hazardous.
All electrical work must conform to national and local
electrical codes. It is strongly recommended that installation, start up, and maintenance be performed only by
trained and qualified personnel. Failure to follow these
guidelines could result in death or serious injury.
CAUTION
WIRING ISOLATION!
Run input power, motor wiring and control wiring in three
separate metallic conduits or use separated shielded cable
for high frequency noise isolation. Failure to isolate power,
motor and control wiring could result in less than
optimum frequency converter and associated equipment
performance.
10MG16F102 - VLT® is a registered Danfoss trademark
For personal safety, comply with the following
requirements
Electronic controls equipment is connected to
•
hazardous mains voltage. Extreme care should be
taken to protect against electrical hazards when
applying power to the unit.
Run motor cables from multiple frequency
•
converters separately. Induced voltage from
output motor cables run together can charge
equipment capacitors even with the equipment
turned off and locked out.
Field wiring terminals are not intended to receive
•
a conductor one size larger.
Overload and Equipment Protection
An electronically activated function within the
•
frequency converter provides overload protection
for the motor. The overload calculates the level of
increase to activate timing for the trip (controller
output stop) function. The higher the current
draw, the quicker the trip response. The overload
provides Class 20 motor protection. See for
details on the trip function.
Because the motor wiring carries high frequency
•
current, it is important that wiring for mains,
motor power, and control are run separately. Use
metallic conduit or separated shielded wire. See
Illustration 3.3. Failure to isolate power, motor,
and control wiring could result in less than
optimum equipment performance.
All frequency converters must be provided with
•
short-circuit and over-current protection. Input
fusing is required to provide this protection, see
Illustration 3.4. If not factory supplied, fuses must
be provided by the installer as part of installation.
See maximum fuse ratings in 11.3.1 Protection.
Illustration 3.3 Example of Proper Electrical Installation Using
Conduit
3
3
Illustration 3.4 Frequency Converter Fuses
Wire Type and Ratings
All wiring must comply with local and national
•
regulations regarding cross-section and ambient
temperature requirements.
Danfoss recommends that all power connections
•
are made with a minimum 75 °C rated copper
wire.
MG16F102 - VLT® is a registered Danfoss trademark11
For operator safety, it is important to earth (ground) the
frequency converter properly in accordance with national
and local electrical codes as well as instructions contained
within this document. Do not use conduit connected to
the frequency converter as a replacement for proper
grounding. Earth (ground) currents are higher than 3.5 mA.
Failure to earth (ground) the frequency converter properly
could result in death or serious injury.Earthing (grounding)
hazard
NOTE
It is the responsibility of the user or certified electrical
installer to ensure correct earthing (grounding) of the
equipment in accordance with national and local electrical
codes and standards.
Follow all local and national electrical codes to
•
earth (ground) electrical equipment properly.
Proper protective earthing (grounding) for
•
equipment with earth (ground) currents higher
than 3.5 mA must be established, see
3.4.2.1 Leakage Current (>3.5 mA).
A dedicated earth wire (ground wire) is required
•
for input power, motor power and control wiring.
Use the clamps provided with the equipment for
•
proper earth connections (ground connections).
Do not earth (ground) one frequency converter to
•
another in a “daisy chain” fashion.
Keep the earth (ground) wire connections as
•
short as possible.
Using high-strand wire to reduce electrical noise
•
is recommended.
Follow motor manufacturer wiring requirements.
•
3.4.2.1
Leakage Current (>3.5 mA)
Earthing (grounding) must be reinforced in one of the
following ways:
Earth (ground) wire of at least 10 mm
•
Two separate earth (ground) wires both
•
complying with the dimensioning rules.
See EN 60364-5-54 § 543.7 for further information.
Using RCDs
Where residual current devices (RCDs)–also known as earth
leakage circuit breakers (ELCBs)–are used, comply with the
following: residual current devices (RCDs)
Use RCDs of type B only, which are capable of
•
detecting AC and DC currents.
Use RCDs with an inrush delay to prevent faults
•
due to transient earth currents.
Dimension RCDs according to the system configu-
•
ration and environmental considerations.
2
Follow national and local codes regarding protective
earthing of equipment with a leakage current > 3.5 mA.
Frequency converter technology implies high frequency
switching at high power. This will generate a leakage
current in the earth connection. A fault current in the
frequency converter at the output power terminals might
contain a DC component, which can charge the filter
capacitors and cause a transient earth current. The earth
leakage current depends on various system configurations
including RFI filtering, screened motor cables, and
frequency converter power.
EN/IEC61800-5-1 (Power Drive System Product Standard)
requires special care if the leakage current exceeds 3.5 mA.
12MG16F102 - VLT® is a registered Danfoss trademark
The frequency converter can be earthed (grounded) using
conduit or shielded cable. For earthing (grounding) of the
power connections, use the dedicated earthing
(grounding) points as shown in Illustration 3.6.
3.4.2.3
Earthing (Grounding) IP21/54
Enclosures
The frequency converter can be earthed (grounded) using
conduit or shielded cable. For earthing (grounding) of the
power connections, use the dedicated earthing
(grounding) points as shown in Illustration 3.6.
3
3
Illustration 3.5 Earthing (Grounding) Points for IP20 (Chassis)
Enclosures
Illustration 3.6 Earthing (Grounding) for IP21/54 Enclosures.
MG16F102 - VLT® is a registered Danfoss trademark13
Run output motor cables from multiple frequency
converters separately. Induced voltage from output motor
cables run together can charge equipment capacitors even
with the equipment turned off and locked out. Failure to
run output motor cables separately could result in death
or serious injury.
For maximum cable sizes, see 11.2 Mains Supply.
•
Comply with local and national electrical codes
•
for cable sizes.
Gland plates are provided at the base of IP21/54
•
and higher (NEMA1/12) units.
Do not install power factor correction capacitors
•
between the frequency converter and the motor.
Do not wire a starting or pole-changing device
•
between the frequency converter and the motor.
Connect the 3-phase motor wiring to terminals
•
96 (U), 97 (V), and 98 (W).
Earth (ground) the cable in accordance with the
•
instructions provided.
Torque terminals in accordance with the
•
information provided in 11.3.4 Connection
Tightening Torques
Follow motor manufacturer wiring requirements.
•
Illustration 3.7 Terminal Locations D1h
14MG16F102 - VLT® is a registered Danfoss trademark
The motor must be connected to terminals U/T1/96, V/
T2/97, W/T3/98. Earth (ground) to terminal 99. All types of
three-phase asynchronous standard motors can be used
with a frequency converter unit. The factory setting is for
clockwise rotation with the frequency converter output
connected as follows:
The direction of rotation can be changed by switching two
phases in the motor cable or by changing the setting of
4-10 Motor Speed Direction.
•
•
•
Table 3.4
A motor rotation check can be performed using1-28 MotorRotation Check and following the steps shown in the
display.
3.4.4
Motor Rotation Check
Terminal U/T1/96 connected
to U-phase
Terminal V/T2/97 connected
to V-phase
Terminal W/T3/98
connected to W-phase
AC Mains Input Connection
Size wiring is based upon the input current of the
•
frequency converter.
Comply with local and national electrical codes
•
for cable sizes.
Connect 3-phase AC input power wiring to
•
terminals L1, L2, and L3 (see Illustration 3.11).
Illustration 3.11 Connecting to AC Mains
Mains connection
1
2 Motor connection
Table 3.5
Earth (ground) the cable in accordance with the
•
instructions provided.
All frequency converters may be used with an
•
isolated input source as well as with earth
(ground) reference power lines. When supplied
from an isolated mains source (IT mains or
floating delta) or TT/TN-S mains with a grounded
leg (grounded delta), set 14-50 RFI Filter to OFF.
When off, the internal RFI filter capacitors
between the chassis and the intermediate circuit
are isolated to avoid damage to the intermediate
circuit and to reduce earth (ground) capacity
currents in accordance with IEC 61800-3.
MG16F102 - VLT® is a registered Danfoss trademark17
components in the frequency converter.
If the frequency converter is connected to a
•
thermistor, for PELV isolation, optional thermistor
control wiring must be reinforced/double
insulated. A 24 V DC supply voltage is
recommended.
3.5.1 Access
All terminals to the control cables are located underneath
the LCP on the inside of the frequency converter. To
access, open the door (IP21/54) or remove the front panel
(IP20).
Using Screened Control Cables
3.5.2
Danfoss recommends braided screened/armoured cables to
optimise EMC immunity of the control cables and the EMC
emission from the motor cables.
Earthing (Grounding) of Screened
3.5.3
Control Cables
Illustration 3.13
Avoid EMC noise on serial communication
This terminal is connected to earth (ground) via an internal
RC link. Use twisted-pair cables to reduce interference
between conductors. The recommended method is shown
below:
Illustration 3.14
1
Min. 16 mm
2Equalizing cable
Table 3.7
2
Correct screening
The preferred method in most cases is to secure control
and serial communication cables with screening clamps
provided at both ends to ensure best possible high
frequency cable contact. If the earth (ground) potential
between the frequency converter and the PLC is different,
electric noise may occur that will disturb the entire system.
Solve this problem by fitting an equalizing cable next to
the control cable. Minimum cable cross section: 16 mm2.
Illustration 3.12
1
Min. 16 mm
2Equalizing cable
Table 3.6
2
Alternatively, the connection to terminal 61 can be
omitted:
Illustration 3.15
1
Min. 16 mm
2Equalizing cable
Table 3.8
2
50/60 Hz earth (ground) loops
With very long control cables, earth loops (ground loops)
may occur. To eliminate earth (ground) loops, connect one
end of the screen-to-earth (ground) with a 100 nF
capacitor (keeping leads short).
18MG16F102 - VLT® is a registered Danfoss trademark
Terminal functions and default settings are summarized in
3.5.6 Control Terminal Functions.
Illustration 3.16 Control Terminal Locations
Connector 1 provides four programmable digital
•
input terminals, two additional digital terminals
programmable as either input or output, a 24 V
DC terminal supply voltage, and a common for
optional customer supplied 24 V DC voltage.
Connector 2 terminals (+)68 and (-)69 are for an
•
RS-485 serial communications connection.
Connector 3 provides two analog inputs, one
•
analog output, 10 V DC supply voltage, and
commons for the inputs and output.
Connector 4 is a USB port available for use with
•
the MCT 10 Set-up Software.
Also provided are two Form C relay outputs that
•
are in various locations depending upon the
frequency converter configuration and size.
Some options available for ordering with the unit
•
may provide additional terminals. See the manual
provided with the equipment option.
3.5.5
Wiring to Control Terminals
Terminal plugs can be removed for easy access.
Illustration 3.17
3.5.6 Control Terminal Functions
Frequency converter functions are commanded by
receiving control input signals.
Each terminal must be programmed for the
•
function it will be supporting in the parameters
associated with that terminal. See and for
terminals and associated parameters.
It is important to confirm that the control
•
terminal is programmed for the correct function.
See for details on accessing parameters and
programming.
The default terminal programming is intended to
•
initiate frequency converter functioning in a
typical operational mode.
3.6
Serial Communication
RS-485 is a two-wire bus interface compatible with multidrop network topology, i.e. nodes can be connected as a
bus, or via drop cables from a common trunk line. A total
of 32 nodes can be connected to one network segment.
Repeaters divide network segments. Each repeater
functions as a node within the segment in which it is
installed. Each node connected within a given network
must have a unique node address across all segments.
Terminate each segment at both ends, using either the
termination switch (S801) of the frequency converter or a
biased termination resistor network. Always use screened
twisted pair (STP) cable for bus cabling, and always follow
good common installation practice.
Low-impedance earth (ground) connection of the screen at
every node is important, including at high frequencies.
Thus, connect a large surface of the screen to earth
(ground), for example with a cable clamp or a conductive
cable gland. It may be necessary to apply potentialequalizing cables to maintain the same earth (ground)
3
3
MG16F102 - VLT® is a registered Danfoss trademark19
potential throughout the network. Particularly in installations with long cables.
To prevent impedance mismatch, always use the same
type of cable throughout the entire network. When
connecting a motor to the frequency converter, always use
screened motor cable.
CableScreened twisted pair (STP)
Impedance
Max. cable length1200 m (including drop lines)
Table 3.9
120 Ω
500 m station-to-station
20MG16F102 - VLT® is a registered Danfoss trademark
Start Up and Functional Tes...VLT® Refrigeration Drive 110-250 kW Operating Instructions
4 Start Up and Functional Test
4.1 Pre-start
CAUTION
Before applying power to the unit, inspect the entire
installation as detailed in Table 4.1. Check mark those items
when completed.
44
Inspect forDescription
Auxiliary equipment
Cable routing
Control wiring
Cooling clearance
EMC considerations
Environmental considerations
Fusing and circuit
breakers
Earthing (Grounding)
Input and output power
wiring
Panel interior
Switches
Vibration
Look for auxiliary equipment, switches, disconnects, or input fuses/circuit breakers that may
•
reside on the input power side of the frequency converter or output side to the motor. Ensure
that they are ready for full speed operation.
Check function and installation of any sensors used for feedback to the frequency converter.
•
Remove power factor correction caps on motor(s), if present.
•
Ensure that input power, motor wiring , and control wiring are separated or in three separate
•
metallic conduits for high frequency noise isolation.
Check for broken or damaged wires and loose connections.
•
Check that control wiring is isolated from power and motor wiring for noise immunity.
•
Check the voltage source of the signals, if necessary.
•
The use of shielded cable or twisted pair is recommended. Ensure that the shield is terminated
•
correctly.
Measure that top and bottom clearance is adequate to ensure proper air flow for cooling.
•
Check for proper installation regarding electromagnetic compatibility.
•
See equipment label for the maximum ambient operating temperature limits.
•
Humidity levels must be 5-95% non-condensing.
•
Check for proper fusing or circuit breakers.
•
Check that all fuses are inserted firmly and in operational condition and that all circuit breakers
•
are in the open position.
The unit requires an earth wire(ground wire) from its chassis to the building earth (ground).
•
Check for good earth connections(ground connections) that are tight and free of oxidation.
•
Earthing (grounding) to conduit or mounting the back panel to a metal surface is not a
•
suitable earth (ground).
Check for loose connections.
•
Check that motor and mains are in separate conduit or separated screened cables.
•
Inspect that the unit interior is free of dirt, metal chips, moisture, and corrosion.
•
Ensure that all switch and disconnect settings are in the proper positions.
•
Check that the unit is mounted solidly or that shock mounts are used, as necessary.
•
Check for an unusual amount of vibration.
•
☑
Table 4.1 Start Up Check List
MG16F102 - VLT® is a registered Danfoss trademark21
130BC951.10
Start Up and Functional Tes...VLT® Refrigeration Drive 110-250 kW Operating Instructions
4.2 Applying Power to the Frequency Converter
WARNING
HIGH VOLTAGE!
Frequency converters contain high voltage when
connected to AC mains. Installation, start-up and
maintenance should be performed by qualified personnel
44
only. Failure to perform installation, start-up and
maintenance by qualified personnel could result in death
or serious injury.
WARNING
UNINTENDED START!
When the frequency converter is connected to AC mains,
the motor may start at any time. The frequency converter,
motor, and any driven equipment must be in operational
readiness. Failure to be in operational readiness when the
frequency converter is connected to AC mains could result
in death, serious injury, equipment, or property damage.
1.Confirm input voltage is balanced within 3%. If
not, correct input voltage imbalance before
proceeding. Repeat procedure after voltage
correction.
2.Ensure optional equipment wiring, if present,
matches installation application.
3.Ensure that all operator devices are in the OFF
position. Panel doors closed or cover mounted.
4.Apply power to the unit. DO NOT start the
frequency converter at this time. For units with a
disconnect switch, turn to the ON position to
apply power to the frequency converter.
event of power failure the application guide is accessed
through the Quick menu screen.
If [Cancel] is pressed, the FC 103 will return to the status
screen. An automatic timer will cancel the wizard after 5
min. of inactivity (no keys pressed). The wizard must be reentered through the Quick Menu when it has been run
once.
Answering the questions on the screens takes the user
though a complete set-up for the FC 103. Most standard
refrigeration applications can be setup by using this
Application Guide. Advanced features must be accessed
though the menu structure (Quick Menu or Main Menu) in
the frequency converter.
The FC 103 Wizard covers all standard settings for:
-Compressors
-Single fan and pump
-Condenser fans
These applications are then further expanded to allow
control of the frequency converter to be controlled via the
frequency converter's own internal PID controllers or from
an external control signal.
After completing set-up, choose to re-run wizard or start
application
The Application Guide can be cancelled at any time by
pressing [Back]. The Application Guide can be re-entered
through the Quick Menu. When re-entering the Application
Guide, the user will be asked to keep previous changes to
the factory set-up or to restore default values.
NOTE
If the status line at the bottom of the LCP reads AUTO
REMOTE COAST, this indicates that the unit is ready to
operate but is missing an input signal on terminal 27.
The FC 103 will start up initially with the Application guide
thereafter in the event of power failure the application
guide is accessed through the Quick menu screen.
The following screen will be presented:
4.3 Basic Operational Programming
4.3.1 Set-up Wizard
The built -in “wizard” menu guides the installer through
the set -up of the frequency converter in a clear and
structured manner, and has been constructed with
reference to the industries refrigeration engineers, to
ensure that the text and language used makes complete
sense to the installer.
At start-up the FC 103 asks the user run the VLT Drive
Application Guide or to skip it (until it has been run, the
FC 103 will ask every time at start-up), thereafter in the
22MG16F102 - VLT® is a registered Danfoss trademark
Illustration 4.1
If [Cancel] is pressed, the FC 103 will return to the status
screen. An automatic timer will cancel the wizard after 5
min. of inactivity (no keys pressed). The wizard must be reentered through the Quick Menu as described below.
130BC952.10
130BC953.10
130BC954.10
Start Up and Functional Tes...VLT® Refrigeration Drive 110-250 kW Operating Instructions
If [OK] is pressed, the Application Guide will start with the
following screen:
Illustration 4.2
NOTE
Numbering of steps in wizard (e.g. 1/12) can change
depending on choices in the workflow.
This screen will automatically change to the first input
screen of the Application Guide:
Compressor pack set-up
As an example, see screens below for a compressor pack
set-up:
Voltage and frequency set-up
44
Illustration 4.5
Current and nominal speed set-up
Illustration 4.3
Illustration 4.4
Illustration 4.6
Min. and max. frequency set-up
Illustration 4.7
MG16F102 - VLT® is a registered Danfoss trademark23
Start Up and Functional Tes...VLT® Refrigeration Drive 110-250 kW Operating Instructions
Min. time between two starts
44
Illustration 4.8
Choose with/without bypass valve
NOTE
Internal/Closed loop: The FC 103 will control the
application directly using the internal PID control within
the frequency converter and needs an input from an
external input such as a temperature or other sensor which
is wired directly into the frequency converter and controls
from the sensor signal.
External/Open loop: The FC 103 takes its control signal
from another controller (such as a pack controller) which
gives the frequency converter e.g. 0-10 V, 4-20 mA or FC
103 Lon. The frequency converter will change its speed
depending upon this reference signal.
Select sensor type
Illustration 4.9
Select open or closed loop
Illustration 4.10
Illustration 4.11
Settings for sensor
Illustration 4.12
24MG16F102 - VLT® is a registered Danfoss trademark
Start Up and Functional Tes...VLT® Refrigeration Drive 110-250 kW Operating Instructions
Info: 4-20 mA feedback chosen - connect accordingly
Illustration 4.13
Info: Set switch accordingly
Select fixed or floating setpoint
44
Illustration 4.16
Set setpoint
Illustration 4.14
Select unit and conversion from pressure
Illustration 4.15
Illustration 4.17
Set high/low limit for setpoint
Illustration 4.18
MG16F102 - VLT® is a registered Danfoss trademark25
130BC955.10
130BP956.10
Start Up and Functional Tes...VLT® Refrigeration Drive 110-250 kW Operating Instructions
Set cut out/in value
Info: Connect accordingly
Illustration 4.22
44
Info: Setup completed
Illustration 4.19
Choose pack control set-up
Illustration 4.20
Set number of compressors in pack
Illustration 4.21
Illustration 4.23
After completing set-up, choose to re-run wizard or start
application. Select between the following options:
Re-run wizard
•
Go to main menu
•
Go to status
•
Run AMA - Note this is a reduced AMA if
•
compressor application is selected and full AMA if
single fan and pump is selected.
If condenser fan is selected in application NO
•
AMA can be run.
Run application- this mode starts the frequency
•
converter in either hand/local mode or via an
external control signal if open loop is selected in
an earlier screen
Illustration 4.24
26MG16F102 - VLT® is a registered Danfoss trademark
130BC957.10
130BP066.10
1107 RPM
0 -
**
Operation/Display
1 -
**
Load/Motor
2 -
**
Brakes
3 -
**
Reference / Ramps
3.84 A1 (1)
Main menu
0-
**
Operation / Display
0.0%
0-0
*
Basic Settings
0-1
*
Set-up Opperations
0-2
*
LCP Display
0-3
*
LCP Custom Readout
0.00A 1(1)
130BP087.10
0-0
*
Basic Settings
0.0%
0-03 Regional Settings
[0] International
0.00A 1(1)
130BP088.10
Start Up and Functional Tes...VLT® Refrigeration Drive 110-250 kW Operating Instructions
The Application Guide can be cancelled at any time by
pressing [Back]. The Application Guide can be re-entered
through the Quick Menu:
Illustration 4.26
Illustration 4.25
3.Use navigation keys to scroll to parameter group
0-0* Basic Settings and press [OK].
When re-entering the Application Guide, select between
previous changes to the factory set-up or restore default
values.
NOTE
If the system requirement is to have the internal pack
controller for 3 compressors plus by-pass valve connected,
there is the need to specify FC 103 with the extra relay
card (MCB 105) mounted inside the frequency converter.
The bypass valve must be programmed to operate from
one of the extra relay outputs on the MCB 105 board.
This is needed because the standard relay outputs in the
FC 103 are used to control the compressors in the pack.
Illustration 4.27
4.
Use navigation keys to scroll to 0-03 RegionalSettings and press [OK].
44
4.3.2 Required Initial Frequency Converter
Programming
NOTE
If the wizard is run, ignore the following.
Frequency converters require basic operational
programming before running for best performance. Basic
operational programming requires entering motornameplate data for the motor being operated and the
minimum and maximum motor speeds. Enter data in
accordance with the following procedure. Parameter
settings recommended are intended for start up and
checkout purposes. Application settings may vary. See for
detailed instructions on entering data through the LCP.
Enter data with power ON, but before operating the
frequency converter.
1.Press [Main Menu] twice on the LCP.
2.Use the navigation keys to scroll to parameter
group 0-** Operation/Display and press [OK].
Illustration 4.28
5.
Use navigation keys to select [0] International or
[1] North America as appropriate and press [OK].
(This changes the default settings for a number
of basic parameters. See 6.4 International/NorthAmerican Default Parameter Settings for a
complete list.)
6.Press [Quick Menu] on the LCP.
7.Use the navigation keys to scroll to parameter
group Q2 Quick Setup and press [OK].
MG16F102 - VLT® is a registered Danfoss trademark27
130BB847.10
Q1 My Personal Menu
Q2 Quick Setup
Q5 Changes Made
Q6 Loggings
13.7% 13.0A 1(1)
Quick Menus
130BT772.10
Q2
0.0 Hz 0.00kW 1(1)
Motor Setup
1 - 21 Motor Power [kW]
4.0 kW
Start Up and Functional Tes...VLT® Refrigeration Drive 110-250 kW Operating Instructions
4.4
Local-control Test
CAUTION
MOTOR START!
Ensure that the motor, system and any attached
Illustration 4.29
44
8.Select language and press [OK]. Then enter the
motor data in parameters 1-20/1-21 through 1-25.
The information can be found on the motor
nameplate.
1-20 Motor Power [kW] or 1-21 Motor
Power [HP]
1-22 Motor Voltage
1-23 Motor Frequency
1-24 Motor Current
1-25 Motor Nominal Speed
Illustration 4.30
equipment are ready for start. It is the responsibility of the
user to ensure safe operation under any condition. Failure
to ensure that the motor, system, and any attached
equipment is ready for start could result in personal injury
or equipment damage.
NOTE
The [Hand On] key provides a local start command to the
frequency converter. The [Off] key provides the stop
function.
When operating in local mode, [▲] and [▼] increase and
decrease the speed output of the frequency converter. [◄]
and [►] move the display cursor in the numeric display.
1.Press [Hand On].
2.Accelerate the frequency converter by pressing
[▲] to full speed. Moving the cursor left of the
decimal point provides quicker input changes.
3.Note any acceleration problems.
4.Press [Off].
5.Note any deceleration problems.
If acceleration problems were encountered
If warnings or alarms occur, see .
•
9.A jumper wire should be in place between
control terminals 12 and 27. If this is the case,
leave 5-12 Terminal 27 Digital Input at factory
default. Otherwise select No Operation. For
frequency converters with an optional Danfoss
bypass, no jumper wire is required.
10.
3-02 Minimum Reference
11.
3-03 Maximum Reference
12.
3-41 Ramp 1 Ramp Up Time
13.
3-42 Ramp 1 Ramp Down Time
14.
3-13 Reference Site. Linked to Hand/Auto* Local
Remote.
This concludes the quick set-up procedure. Press [Status]
to return to the operational display.
28MG16F102 - VLT® is a registered Danfoss trademark
If deceleration problems were encountered
See 5.1.1 Local Control Panel for resetting the frequency
converter after a trip.
Check that motor data is entered correctly.
•
Increase the ramp-up time in 3-41 Ramp 1 Ramp
•
Up Time.
Increase current limit in 4-18 Current Limit.
•
Increase torque limit in 4-16 Torque Limit Motor
•
Mode.
If warnings or alarms occur, see .
•
Check that motor data is entered correctly.
•
Increase the ramp-down time in 3-42 Ramp 1
•
Ramp Down Time.
Enable overvoltage control in 2-17 Over-voltage
•
Control.
Start Up and Functional Tes...VLT® Refrigeration Drive 110-250 kW Operating Instructions
NOTE
4.2 Applying Power to the Frequency Converter through in
this chapter concludes the procedures for applying power
to the frequency converter, basic programming, set-up,
and functional testing.
4.5 System Start Up
The procedure in this section requires user-wiring and
application programming to be completed. See for
application set-up information. The following procedure is
recommended after application set-up by the user is
completed.
CAUTION
MOTOR START!
Ensure that the motor, system, and any attached
equipment is ready for start. It is the responsibility of the
user to ensure safe operation under any condition. Failure
to do so could result in personal injury or equipment
damage.
1.Press [Auto On].
2.Ensure that external control functions are
properly wired to the frequency converter and all
programming is completed.
3.Apply an external run command.
4.Adjust the speed reference throughout the speed
range.
5.Remove the external run command.
6.Note any problems.
If warnings or alarms occur, see 9 Warnings and Alarms.
44
MG16F102 - VLT® is a registered Danfoss trademark29
Auto
on
Reset
Hand
on
O
Status
Quick
Menu
Main
Menu
Alarm
Log
Cancel
Info
Status
1(1)
1234rpm
Back
OK
43,5Hz
Run OK
43,5Hz
On
Alarm
Warn.
130BC362.10
a
b
c
d
1.0 A
User InterfaceVLT® Refrigeration Drive 110-250 kW Operating Instructions
5 User Interface
LCP Layout
5.1.1
5.1 Local Control Panel
The local control panel (LCP) is the combined display and
The LCP is divided into four functional groups (see
Illustration 5.1).
keypad on the front of the unit. The LCP is the user
interface to the frequency converter.
The LCP has several user functions.
55
Start, stop, and control speed when in local
•
control.
Display operational data, status, warnings and
•
cautions.
Programming frequency converter functions.
•
Manually reset the frequency converter after a
•
fault when auto-reset is inactive.
Illustration 5.1 LCP
a.Display area.
b.Display menu keys for changing the display to
show status options, programming, or error
message history.
30MG16F102 - VLT® is a registered Danfoss trademark
c.Navigation keys for programming functions,
moving the display cursor, and speed control in
local operation. Also included are the status
indicator lights.
d.Operational mode keys and reset.
1.1
2
3
1.3
1.2
130BP041.10
799 RPM
Auto Remote Ramping
1 (1)
36.4 kw7.83 A
0.000
53.2 %
Status
1.1
1.2
2
1.3
130BP062.10
207RPM
Auto Remote Running
1 (1)
24.4 kW5.25A
6.9
Hz
Status
130BP045.10
Status
Quick
Menu
Main
Menu
Alarm
Log
User InterfaceVLT® Refrigeration Drive 110-250 kW Operating Instructions
5.1.2 Setting LCP Display Values
The display area is activated when the frequency converter
receives power from mains voltage, a DC bus terminal, or
an external 24 V supply.
The information displayed on the LCP can be customized
for user application.
Each display readout has a parameter associated
•
with it.
Options are selected in the quick menu Q3-13
•
Display Settings.
Display 2 has an alternate larger display option.
•
The frequency converter status at the bottom line
•
of the display is generated automatically and is
not selectable.
DisplayParameter numberDefault setting
1.10-20Motor RPMs
1.20-21Motor current
1.30-22Motor power (kW)
20-23Motor frequency
30-24Reference in percent
Table 5.1
Illustration 5.2
5.1.3 Display
Menu keys are used for menu access for parameter set-up,
toggling through status display modes during normal
operation, and viewing fault log data.
Illustration 5.4
KeyFunction
StatusShows operational information.
In Auto mode, press to toggle between
•
status read-out displays
Press repeatedly to scroll through each
•
status display
•
Press [Status] plus [▲] or [▼] to adjust the
display brightness
The symbol in the upper right corner of the
•
display shows the direction of motor
rotation and which set-up is active. This is
not programmable.
Quick MenuAllows access to programming parameters for
initial set up instructions and many detailed
application instructions.
Press to access Q2 Quick Setup for
•
sequenced instructions to program the basic
frequency controller set up
Follow the sequence of parameters as
•
presented for the function set up
Main MenuAllows access to all programming parameters.
Press twice to access top-level index
•
Press once to return to the last location
•
accessed
Press to enter a parameter number for
•
direct access to that parameter
Alarm LogDisplays a list of current warnings, the last 10
alarms, and the maintenance log.
For details about the frequency converter
•
before it entered the alarm mode, select the
alarm number using the navigation keys
and press [OK].
55
Illustration 5.3
Table 5.2
MG16F102 - VLT® is a registered Danfoss trademark31
130BT117.10
OK
Back
Info
Warn
Alarm
On
Cancel
130BP046.10
Hand
on
O
Auto
on
Reset
User InterfaceVLT® Refrigeration Drive 110-250 kW Operating Instructions
5.1.4 Navigation Keys
Navigation keys are used for programming functions and
5.1.5
Operation Keys
Operation keys are found at the bottom of the LCP.
moving the display cursor. The navigation keys also
provide speed control in local (hand) operation. Three
frequency converter status indicator lights are also located
in this area.
Illustration 5.6
55
Illustration 5.5
KeyFunction
BackReverts to the previous step or list in the menu
structure.
CancelCancels the last change or command as long as
the display mode has not changed.
InfoPress for a definition of the function being
displayed.
Navigation
Keys
OKUse to access parameter groups or to enable a
Table 5.3
Light
GreenONThe ON light activates when the
YellowWARNWhen warning conditions are met,
RedALARMA fault condition causes the red
Use the four navigation keys to move between
items in the menu.
choice.
IndicatorFunction
frequency converter receives
power from mains voltage, a DC
bus terminal, or an external 24 V
supply.
the yellow WARN light comes on
and text appears in the display
area identifying the problem.
alarm light to flash and an alarm
text is displayed.
KeyFunction
Hand OnStarts the frequency converter in local control.
Use the navigation keys to control frequency
•
converter speed
An external stop signal by control input or
•
serial communication overrides the local hand
on
OffStops the motor but does not remove power to
the frequency converter.
Auto OnPuts the system in remote operational mode.
Responds to an external start command by
•
control terminals or serial communication
Speed reference is from an external source
•
ResetResets the frequency converter manually after a
fault has been cleared.
Table 5.5
5.2
Back Up and Copying Parameter
Settings
Programming data is stored internally in the frequency
converter.
The data can be uploaded into the LCP memory
•
as a storage back up
Once stored in the LCP, the data can be
•
downloaded back into the frequency converter
Data can also be downloaded into other
•
frequency converters by connecting the LCP into
those units and downloading the stored settings.
(This is a quick way to program multiple units
with the same settings.)
Initialisation of the frequency converter to restore
•
factory default settings does not change data
stored in the LCP memory
Table 5.4
32MG16F102 - VLT® is a registered Danfoss trademark
User InterfaceVLT® Refrigeration Drive 110-250 kW Operating Instructions
WARNING
UNINTENDED START!
When the frequency converter is connected to AC mains,
the motor may start at any time. The frequency converter,
motor, and any driven equipment must be in operational
readiness. Failure to be in operational readiness when the
frequency converter is connected to AC mains could result
in death, serious injury, or equipment or property damage.
5.2.1 Uploading Data to the LCP
1.Press [Off] to stop the motor before uploading or
downloading data.
2.
Go to 0-50 LCP Copy.
3.Press [OK].
4.
Select All to LCP.
5.Press [OK]. A progress bar shows the uploading
process.
6.Press [Hand On] or [Auto On] to return to normal
operation.
personal menu settings, fault log, alarm log, and
other monitoring functions
Using 14-22 Operation Mode is generally
•
recommended
Manual initialisation erases all motor,
•
programming, localization, and monitoring data
and restores factory default settings
5.3.1 Recommended Initialisation
1.Press [Main Menu] twice to access parameters.
2.
Scroll to 14-22 Operation Mode.
3.Press [OK].
4.
Scroll to Initialisation.
5.Press [OK].
6.Remove power to the unit and wait for the
display to turn off.
7.Apply power to the unit.
Default parameter settings are restored during start up.
This may take slightly longer than normal.
55
Downloading Data from the LCP
5.2.2
1.Press [Off] to stop the motor before uploading or
downloading data.
2.
Go to 0-50 LCP Copy.
3.Press [OK].
4.
Select All from LCP.
5.Press [OK]. A progress bar shows the
downloading process.
6.Press [Hand On] or [Auto On] to return to normal
operation.
5.3
Restoring Default Settings
CAUTION
Initialisation restores the unit to factory default settings.
Any programming, motor data, localization, and
monitoring records will be lost. Uploading data to the LCP
provides a backup before initialisation.
Restoring the frequency converter parameter settings back
to default values is done by initialisation of the frequency
converter. Initialisation can be through 14-22 OperationMode or manually.
8.Alarm 80 is displayed.
9.Press [Reset] to return to operation mode.
Manual Initialisation
5.3.2
1.Remove power to the unit and wait for the
display to turn off.
2.Press and hold [Status], [Main Menu], and [OK] at
the same time and apply power to the unit.
Factory default parameter settings are restored during start
up. This may take slightly longer than normal.
Manual initialisation does not the following frequency
converter information
15-00 Operating hours
•
15-03 Power Up's
•
15-04 Over Temp's
•
15-05 Over Volt's
•
Initialisation using 14-22 Operation Mode does not
•
change frequency converter data such as
operating hours, serial communication selections,
MG16F102 - VLT® is a registered Danfoss trademark33
The frequency converter is programmed for its application
functions using parameters. Parameters are accessed by
pressing either [Quick Menu] or [Main Menu] on the LCP.
(See for details on using the LCP function keys.)
Parameters may also be accessed through a PC using the
MCT 10 Set-up Software, go to www.VLT-software.com.
frequency converter reference to 0 Hz. (This sets
the minimum frequency converter speed at 0 Hz.)
6
The quick menu is intended for initial start up (Q2-** QuickSet Up) and detailed instructions for common frequency
converter applications (Q3-** Function Set Up). Step-by-step
instructions are provided. These instructions enable the
user to walk through the parameters used for
programming applications in their proper sequence. Data
entered in a parameter can change the options available in
the parameters following that entry. The quick menu
presents easy guidelines for getting most systems up and
running.
The main menu accesses all parameters and allows for
advanced frequency converter applications.
6.2
Programming Example
Here is an example for programming the frequency
converter for a common application in open loop using
the quick menu.
This procedure programs the frequency converter
•
to receive a 0-10 V DC analog control signal on
input terminal 53
The frequency converter will respond by
•
providing 6-60 Hz output to the motor proportional to the input signal (0-10 V DC = 6-60 Hz)
Select the following parameters using the navigation keys
to scroll to the titles and press [OK] after each action.
Illustration 6.2
3.
3-03 Maximum Reference. Set maximum internal
frequency converter reference to 60 Hz. (This sets
the maximum frequency converter speed at 60
Hz. Note that 50/60 Hz is a regional variation.)
Illustration 6.3
4.
6-10 Terminal 53 Low Voltage. Set minimum
external voltage reference on Terminal 53 at 0 V.
(This sets the minimum input signal at 0 V.)
1.
3-15 Reference 1 Source
Illustration 6.1
34MG16F102 - VLT® is a registered Danfoss trademark
6-11 Terminal 53 High Voltage. Set maximum
external voltage reference on Terminal 53 at 10 V.
(This sets the maximum input signal at 10 V.)
Illustration 6.5
Illustration 6.8 Wiring Example for External Device Providing
6.
6-14 Terminal 53 Low Ref./Feedb. Value. Set
0-10 V Control Signal (Frequency Converter Left, External Device
Right)
minimum speed reference on Terminal 53 at 6Hz.
(This tells the frequency converter that the
minimum voltage received on Terminal 53 (0 V)
equals 6 Hz output.)
6.3 Control Terminal Programming
Examples
6
6
Illustration 6.6
7.
6-15 Terminal 53 High Ref./Feedb. Value. Set
maximum speed reference on Terminal 53 at 60
Hz. (This tells the frequency converter that the
maximum voltage received on Terminal 53 (10 V)
equals 60 Hz output.)
Illustration 6.7
Control terminals can be programmed.
Each terminal has specified functions it is capable
•
of performing
Parameters associated with the terminal enable
•
the function
See for control terminal parameter number and default
setting. (Default setting can change based on the selection
in 0-03 Regional Settings.)
The following example shows accessing Terminal 18 to see
the default setting.
1.Press [Main Menu] twice, scroll to parameter
group 5-** Digital In/Out Parameter Data Set and
press [OK].
With an external device providing a 0-10 V control signal
connected to frequency converter terminal 53, the system
is now ready for operation. Note that the scroll bar on the
right in the last illustration of the display is at the bottom,
indicating the procedure is complete.
Illustration 6.8 shows the wiring connections used to
enable this set up.
MG16F102 - VLT® is a registered Danfoss trademark35
Scroll to parameter group 5-1* Digital Inputs and
press [OK].
ParameterInternational
default parameter
value
Illustration 6.10
3.
Scroll to 5-10 Terminal 18 Digital Input. Press [OK]
to access function choices. The default setting
Start is shown.
Illustration 6.11
6.4 International/North American Default
Parameter Settings
Setting 0-03 Regional Settings to [0] International or [1]North America changes the default settings for some
parameters. Table 6.1 lists those parameters that are
effected.
4-14 Motor Speed
High Limit [Hz]
See Note 4
4-19 Max Output
Frequency
4-53 Warning Speed
High
5-12 Terminal 27
Digital Input
5-40 Function Relay No operationNo alarm
6-15 Terminal 53
High Ref./Feedb.
Value
6-50 Terminal 42
Output
14-20 Reset Mode
Table 6.1 International/North American Default Parameter Settings
Note 1: 1-20 Motor Power [kW] is only visible when 0-03 Regional
Settings is set to [0] International.
Note 2: 1-21 Motor Power [HP], is only visible when 0-03 Regional
Settings is set to [1] North America.
Note 3: This parameter is only visible when 0-02 Motor Speed Unit is
set to [0] RPM.
Note 4: This parameter is only visible when 0-02 Motor Speed Unit is
set to [1] Hz.
Note 5: The default value depends on the number of motor poles. For
a 4 poled motor the international default value is 1500 RPM and for
a 2 poled motor 3000 RPM. The corresponding values for North
America is 1800 and 3600 RPM, respectively.
Changes made to default settings are stored and available
50 Hz60 Hz
132 Hz120 Hz
1500 RPM1800 RPM
Coast inverseExternal interlock
5060
No operationSpeed 4-20 mA
Manual resetInfinite auto reset
for viewing in the quick menu along with any
ParameterInternational
default parameter
value
0-03 Regional
Settings
1-20 Motor Power
[kW]
1-21 Motor Power
[HP]
1-22 Motor Voltage 230 V/400 V/575 V208 V/460 V/575 V
1-23 Motor
Frequency
3-03 Maximum
Reference
3-04 Reference
Function
4-13 Motor Speed
High Limit [RPM]
See Note 3 and 5
36MG16F102 - VLT® is a registered Danfoss trademark
InternationalNorth America
See Note 1See Note 1
See Note 2See Note 2
50 Hz60 Hz
50 Hz60 Hz
SumExternal/Preset
1500 PM1800 RPM
North American
default parameter
value
programming entered into parameters.
1.Press [Quick Menu].
2.
Scroll to Q5 Changes Made and press [OK].
3.
Select Q5-2 Since Factory Setting to view all
programming changes or Q5-1 Last 10 Changes
for the most recent.
Select Q5-2 Since Factory Setting to view all
programming changes or Q5-1 Last 10 Changes
for the most recent.
6.5 Parameter Menu Structure
6
6
Establishing the correct programming for applications
often requires setting functions in several related
parameters. These parameter settings provide the
frequency converter with system details it needs to
operate properly. System details may include such things
as input and output signal types, programming terminals,
minimum and maximum signal ranges, custom displays,
automatic restart, and other features.
See the LCP display to view detailed parameter
•
programming and setting options
Press [Info] in any menu location to view
•
additional details for that function
Press and hold [Main Menu] to enter a parameter
•
number for direct access to that parameter
Details for common application set ups are
•
provided in 7 Application Set-Up Examples
MG16F102 - VLT® is a registered Danfoss trademark37
20-74 Maximum Feedback Level20-93 PID Proportional GainCL-14 Maximum Reference/Feedb.
0-24 Display Line 3 Large1-00 Configuration ModeQ3-31 Single Zone Ext. Set Point20-70 Closed Loop Type
Q3-1 General Settings
Q3-10 Adv. Motor Settings0-37 Display Text 120-12 Reference/Feedback Unit1-00 Configuration Mode20-71 PID Performance
38MG16F102 - VLT® is a registered Danfoss trademark
1-90 Motor Thermal Protection0-38 Display Text 2CL-13 Minimum Reference/Feedb.20-12 Reference/Feedback Unit20-72 PID Output Change
1-93 Thermistor Source0-39 Display Text 3CL-14 Maximum Reference/Feedb.CL-13 Minimum Reference/Feedb.20-73 Minimum Feedback Level
Q3-2 Open Loop Settings
1-29 Automatic Motor Adaptation
(AMA)
14-01 Switching FrequencyQ3-20 Digital Reference6-24 Terminal 54 Low Ref./Feedb.
4-53 Warning Speed High3-02 Minimum Reference6-25 Terminal 54 High Ref./Feedb.
Q3-11 Analog Output3-03 Maximum Reference6-26 Terminal 54 Filter Time
6-50 Terminal 42 Output3-10 Preset Reference6-27 Terminal 54 Live Zero6-13 Terminal 53 High Current3-15 Reference 1 Source
6-51 Terminal 42 Output Min Scale 5-13 Terminal 29 Digital Input6-00 Live Zero Timeout Time6-14 Terminal 53 Low Ref./Feedb. Value 3-16 Reference 2 Source
6-52 Terminal 42 Output Max Scale 5-14 Terminal 32 Digital Input6-01 Live Zero Timeout Function6-15 Terminal 53 High Ref./Feedb.
A jumper wire may be required between terminal 12 (or
13) and terminal 37 for the frequency converter to operate
when using factory default programming values.
•
A54 are required, these are also shown
7.2 Set-up Examples
The examples in this section are intended as a quick
reference for common applications.
Parameter settings are the regional default values
•
unless otherwise indicated (selected in
0-03 Regional Settings)
Parameters associated with the terminals and
77
•
their settings are shown next to the drawings
7.2.1 Compressor
The wizard guides the user through the set up of a refrigeration compressor by asking him to input data about the
compressor and the refrigeration system on which the
frequency converter will be running. All terminology and
units used within the wizard are common refrigeration
type and set up is thus completed in 10-15 easy steps
using just two keys of the LCP.
Illustration 7.1 Standard Drawing of “Compressor with Internal Control”
Wizard input:
Bypass valve
•
Recycling time (start to start)
•
Min. Hz
•
Max. Hz
•
Setpoint
•
Cut in/cut out
•
400/230 V AC
•
Amps
•
RPM
•
44MG16F102 - VLT® is a registered Danfoss trademark
Single or Multiple Fans or Pumps
7.2.2
The wizard guides through the process of setting up of a
refrigeration condenser fan or pump. Enter data about the
condenser or pump and the refrigeration system on which
the frequency converter will be running. All terminology
and units used within the wizard are common refrigeration
type and set -up is thus completed in 10-15 easy steps
using just two keys on the LCP.
Illustration 7.5 How to Connect the FC 103 and AKS33 for
Closed Loop Applications
NOTE
To find out which parameters are relevant, run the Wizard.
46MG16F102 - VLT® is a registered Danfoss trademark
Status
799RPM 7.83A 36.4kW
0.000
53.2%
1(1)
Auto
Hand
Off
Remote
Local
Ramping
Stop
Running
Jogging
.
.
.
Stand by
130BB037.10
ab
c
Status MessagesVLT® Refrigeration Drive 110-250 kW Operating Instructions
8 Status Messages
8.1 Status Display
When the frequency converter is in status mode, status
messages are generated automatically from within the
frequency converter and appear in the bottom line of the
display (see Illustration 8.1.)
Illustration 8.1 Status Display
a.The first part of the status line indicates where
the stop/start command originates.
b.The second part of the status line indicates where
the speed control originates.
c.The last part of the status line gives the present
frequency converter status. These show the
operational mode the frequency converter is in.
NOTE
In auto/remote mode, the frequency converter requires
external commands to execute functions.
8.2 Status Message Definitions Table
The next three tables define the meaning of the status
message display words.
Operation mode
OffThe frequency converter does not react to any
control signal until [Auto On] or [Hand On] is
pressed.
Auto onThe frequency converter is controlled from the
control terminals and/or the serial communication.
Hand onThe frequency converter can be controlled by
the navigation keys on the LCP. Stop
commands, reset, reversing, DC brake, and
other signals applied to the control terminals
can override local control.
Table 8.1
Reference site
RemoteThe speed reference is given from external
signals, serial communication, or internal
preset references.
LocalThe frequency converter uses [Hand On]
control or reference values from the LCP.
Table 8.2
Operation status
AC Brake
AMA finish OKAutomatic motor adaptation (AMA) was
AMA readyAMA is ready to start. Press [Hand On] to start.
AMA runningAMA process is in progress.
BrakingThe brake chopper is in operation. Generative
Braking max.The brake chopper is in operation. The power
Coast
AC Brake was selected in 2-10 Brake Function.
The AC brake over-magnetizes the motor to
achieve a controlled slow down.
carried out successfully.
energy is absorbed by the brake resistor.
limit for the brake resistor defined in
2-12 Brake Power Limit (kW) is reached.
Coast inverse was selected as a function
•
for a digital input (parameter group 5-1*).
The corresponding terminal is not
connected.
Coast activated by serial communication
•
88
MG16F102 - VLT® is a registered Danfoss trademark47
Status MessagesVLT® Refrigeration Drive 110-250 kW Operating Instructions
Operation status
Ctrl. Ramp-down Control Ramp-down was selected in
14-10 Mains Failure.
The mains voltage is below the value set
•
in 14-11 Mains Voltage at Mains Fault at
mains fault
The frequency converter ramps down the
•
motor using a controlled ramp down
Current HighThe frequency converter output current is
above the limit set in 4-51 Warning CurrentHigh.
Current LowThe frequency converter output current is
below the limit set in 4-52 Warning Speed Low
DC Hold
DC Stop
88
Feedback highThe sum of all active feedbacks is above the
Feedback lowThe sum of all active feedbacks is below the
Freeze outputThe remote reference is active, which holds
Freeze output
request
Freeze ref.
DC hold is selected in 1-80 Function at Stop
and a stop command is active. The motor is
held by a DC current set in 2-00 DC Hold/Preheat Current.
The motor is held with a DC current (2-01 DC
Brake Current) for a specified time (2-02 DC
Braking Time).
DC Brake is activated in 2-03 DC Brake Cut
•
In Speed [RPM] and a Stop command is
active.
DC Brake (inverse) is selected as a function
•
for a digital input (parameter group 5-1*).
The corresponding terminal is not active.
The DC Brake is activated via serial
•
communication.
feedback limit set in 4-57 Warning FeedbackHigh.
feedback limit set in 4-56 Warning FeedbackLow.
the present speed.
Freeze output was selected as a function
•
for a digital input (parameter group 5-1*).
The corresponding terminal is active.
Speed control is only possible via the
terminal functions speed up and speed
down.
Hold ramp is activated via serial communi-
•
cation.
A freeze output command has been given,
but the motor will remain stopped until a run
permissive signal is received.
Freeze Reference was chosen as a function for
a digital input (parameter group 5-1*). The
corresponding terminal is active. The
frequency converter saves the actual
reference. Changing the reference is now only
possible via terminal functions speed up and
speed down.
Operation status
Jog requestA jog command has been given, but the
motor will be stopped until a run permissive
signal is received via a digital input.
JoggingThe motor is running as programmed in
3-19 Jog Speed [RPM].
Jog was selected as function for a digital
•
input (parameter group 5-1*). The
corresponding terminal (e.g. Terminal 29) is
active.
The Jog function is activated via the serial
•
communication.
The Jog function was selected as a
•
reaction for a monitoring function (e.g. No
signal). The monitoring function is active.
Motor check
OVC control
PowerUnit Off(For frequency converters with an external 24
Protection mdProtection mode is active. The unit has
QStop
RampingThe motor is accelerating/decelerating using
Ref. highThe sum of all active references is above the
In 1-80 Function at Stop, Motor Check was
selected. A stop command is active. To ensure
that a motor is connected to the frequency
converter, a permanent test current is applied
to the motor.
Overvoltage control was activated in 2-17 Overvoltage Control. The connected motor is
supplying the frequency converter with
generative energy. The overvoltage control
adjusts the V/Hz ratio to run the motor in
controlled mode and to prevent the frequency
converter from tripping.
V power supply installed only.) Mains supply
to the frequency converter is removed, but
the control card is supplied by the external 24
V.
detected a critical status (an overcurrent or
overvoltage).
To avoid tripping, switching frequency is
•
reduced to 4 kHz.
If possible, protection mode ends after
•
approximately 10 s.
Protection mode can be restricted in
•
14-26 Trip Delay at Inverter Fault
The motor is decelerating using 3-81 Quick
Stop Ramp Time.
Quick stop inverse was chosen as a function
•
for a digital input (parameter group 5-1*).
The corresponding terminal is not active.
The quick stop function was activated via
•
serial communication.
the active Ramp Up/Down. The reference, a
limit value or a standstill is not yet reached.
reference limit set in 4-55 Warning ReferenceHigh.
48MG16F102 - VLT® is a registered Danfoss trademark
Status MessagesVLT® Refrigeration Drive 110-250 kW Operating Instructions
Operation status
Ref. lowThe sum of all active references is below the
reference limit set in 4-54 Warning ReferenceLow.
Run on ref.The frequency converter is running in the
reference range. The feedback value matches
the setpoint value.
Run requestA start command has been given, but the
motor is stopped until a run permissive signal
is received via digital input.
RunningThe motor is driven by the frequency
converter.
Speed highMotor speed is above the value set in
4-53 Warning Speed High.
Speed lowMotor speed is below the value set in
4-52 Warning Speed Low.
StandbyIn Auto On mode, the frequency converter will
start the motor with a start signal from a
digital input or serial communication.
Start delay
Start fwd/revStart forward and start reverse were selected
StopThe frequency converter has received a stop
TripAn alarm occurred and the motor is stopped.
Trip lockAn alarm occurred and the motor is stopped.
In 1-71 Start Delay, a delay starting time was
set. A start command is activated and the
motor will start after the start delay time
expires.
as functions for two different digital inputs
(parameter group 5-1*). The motor will start in
forward or reverse depending on which
corresponding terminal is activated.
command from the LCP, digital input or serial
communication.
Once the cause of the alarm is cleared, the
frequency converter can be reset manually by
pressing [Reset] or remotely by control
terminals or serial communication.
Once the cause of the alarm is cleared, power
must be cycled to the frequency converter.
The frequency converter can then be reset
manually by pressing [Reset] or remotely by
control terminals or serial communication.
88
Table 8.3
MG16F102 - VLT® is a registered Danfoss trademark49
130BP085.11
Status
0.0Hz 0.000psi 0.00A
0.0Hz
1:0 - Off
!Live zero error [W2]
Off Remote Stop
!1(1)
130BP086.11
Status
0.0Hz 0.000kW 0.00A
0.0Hz
0
Earth Fault [A14]
Auto Remote Trip
1(1)
Warnings and AlarmsVLT® Refrigeration Drive 110-250 kW Operating Instructions
9 Warnings and Alarms
Alarm Trip-lock
9.2.3
9.1 System Monitoring
The frequency converter monitors the condition of its
input power, output, and motor factors as well as other
system performance indicators. A warning or alarm may
not necessarily indicate a problem internal to the
frequency converter itself. In many cases, it indicates failure
conditions from input voltage, motor load or temperature,
external signals, or other areas monitored by the frequency
converter’s internal logic. Be sure to investigate those areas
exterior to the frequency converter as indicated in the
alarm or warning.
An alarm that causes the frequency converter to trip-lock
requires that input power be cycled. The motor will coast
to a stop. The frequency converter logic will continue to
operate and monitor the frequency converter status.
Remove input power to the frequency converter and
correct the cause of the fault, then restore power. This
action puts the frequency converter into a trip condition as
described above and may be reset in any of those 4 ways.
9.3 Warning and Alarm Displays
9.2 Warning and Alarm Types
9.2.1 Warnings
A warning is issued when an alarm condition is impending
or when an abnormal operating condition is present and
99
may result in the frequency converter issuing an alarm. A
warning clears by itself when the abnormal condition is
removed.
Alarm Trip
9.2.2
Illustration 9.1
An alarm or trip-lock alarm will flash on display along with
the alarm number.
An alarm is issued when the frequency converter is
tripped, that is, the frequency converter suspends
operation to prevent frequency converter or system
damage. The motor will coast to a stop. The frequency
converter logic will continue to operate and monitor the
frequency converter status. After the fault condition is
remedied, the frequency converter can be reset. It will
then be ready to start operation again.
A trip can be reset in any of 4 ways:
Press [Reset]
•
Digital reset input command
•
Serial communication reset input command
•
Auto reset
•
Illustration 9.2
50MG16F102 - VLT® is a registered Danfoss trademark
Auto
on
Reset
Hand
on
Off
Back
Cancel
Info
OK
On
Alarm
Warn.
130BB467.10
Warnings and AlarmsVLT® Refrigeration Drive 110-250 kW Operating Instructions
In addition to the text and alarm code on the frequency
converter display, there are three status indicator lights.
Illustration 9.3
Warn. LEDAlarm LED
WarningONOFF
AlarmOFFON (Flashing)
Trip-LockONON (Flashing)
Table 9.1
99
MG16F102 - VLT® is a registered Danfoss trademark51
Warnings and AlarmsVLT® Refrigeration Drive 110-250 kW Operating Instructions
9.4 Warning and Alarm Definitions
Table 9.2 defines whether a warning is issued prior to an alarm, and whether the alarm trips the unit or trip locks the unit.
110 Volts lowX
2Live zero error(X)(X)
4Mains phase loss(X)(X)(X)
5DC link voltage highX
6DC link voltage lowX
7DC over voltageXX
8DC under voltageXX
9Inverter overloadedXX
10Motor over temperature(X)(X)
11Motor thermistor over temperature(X)(X)
12Torque limitXX
13Over CurrentXXX
14Earth (ground) faultXXX
15Hardware mismatchXX
16Short CircuitXX
17Control word timeout(X)(X)
18Start Failed
99
23Internal Fan FaultX
24External Fan FaultX
25Brake resistor short-circuitedX
26Brake resistor power limit(X)(X)
27Brake chopper short-circuitedXX
28Brake check(X)(X)
29Drive over temperatureXXX
30Motor phase U missing(X)(X)(X)
31Motor phase V missing(X)(X)(X)
32Motor phase W missing(X)(X)(X)
33Inrush faultXX
34Fieldbus communication faultXX
35Out of frequency rangeXX
36Mains failureXX
37Phase ImbalanceXX
38Internal faultXX
39Heatsink sensorXX
40Overload of Digital Output Terminal 27(X)
41Overload of Digital Output Terminal 29(X)
42Overload of Digital Output On X30/6(X)
42Overload of Digital Output On X30/7(X)
46Pwr. card supplyXX
4724 V supply lowXXX
481.8 V supply lowXX
6-01 Live Zero Timeout Function
14-12 Function at Mains
Imbalance
1-90 Motor Thermal Protection
1-90 Motor Thermal Protection
8-04 Control Timeout Function
14-53 Fan Monitor
2-13 Brake Power Monitoring
2-15 Brake Check
4-58 Missing Motor Phase
Function
4-58 Missing Motor Phase
Function
4-58 Missing Motor Phase
Function
5-00 Digital I/O Mode,
5-01 Terminal 27 Mode
5-00 Digital I/O Mode,
5-02 Terminal 29 Mode
5-32 Term X30/6 Digi Out (MCB
101)
5-33 Term X30/7 Digi Out (MCB
101)
52MG16F102 - VLT® is a registered Danfoss trademark
Warnings and AlarmsVLT® Refrigeration Drive 110-250 kW Operating Instructions
50AMA calibration failedX
51AMA check U
52AMA low I
nom
nom
and I
nom
X
X
53AMA motor too bigX
54AMA motor too smallX
55AMA Parameter out of rangeX
56AMA interrupted by userX
57AMA timeoutX
58AMA internal faultXX
59Current limitX
60External InterlockX
62Output Frequency at Maximum LimitX
64Voltage LimitX
65Control Board Over-temperatureXXX
66Heat sink Temperature LowX
67Option Configuration has ChangedX
69Pwr. Card TempXX
70Illegal FC configurationX
71PTC 1 Safe StopX
72Dangerous Failure
1)
X
1)
X
73Safe Stop Auto Restart
76Power Unit SetupX
77Reduced Power Mode
79Illegal PS configXX
80Drive Initialized to Default ValueX
91Analog input 54 wrong settingsX
92NoFlowXX22-2*
93Dry PumpXX22-2*
94End of CurveXX22-5*
95Broken BeltXX22-6*
96Start DelayedX22-7*
97Stop DelayedX22-7*
98Clock FaultX0-7*
104Mixing Fan FaultXX14-53
203Missing Motor
204Locked Rotor
243Brake IGBTXX
244Heatsink tempXXX
245Heatsink sensorXX
246Pwr.card supplyXX
247Pwr.card tempXX
248Illegal PS configXX
250New spare partsX
251New Type CodeXX
1-86 Compressor Min. Speed for
Trip [RPM]
99
Table 9.2 Alarm/Warning Code List
(X) Dependent on parameter
1)
Cannot be Auto reset via 14-20 Reset Mode
MG16F102 - VLT® is a registered Danfoss trademark53
Warnings and AlarmsVLT® Refrigeration Drive 110-250 kW Operating Instructions
WARNING/ALARM 7, DC overvoltage
9.5 Fault Messages
The warning/alarm information below defines each
warning/alarm condition, provides the probable cause for
the condition, and details a remedy or troubleshooting
procedure.
WARNING 1, 10 Volts low
The control card voltage is below 10 V from terminal 50.
Remove some of the load from terminal 50, as the 10 V
supply is overloaded. Max. 15 mA or minimum 590 Ω.
This condition can be caused by a short in a connected
potentiometer or improper wiring of the potentiometer.
Troubleshooting
Remove the wiring from terminal 50. If the warning clears,
the problem is with the customer wiring. If the warning
does not clear, replace the control card.
WARNING/ALARM 2, Live zero error
This warning or alarm only appears if programmed by the
user in 6-01 Live Zero Timeout Function. The signal on one
of the analog inputs is less than 50% of the minimum
value programmed for that input. Broken wiring or faulty
99
device sending the signal can cause this condition.
Troubleshooting
Check connections on all the analog input
•
terminals. Control card terminals 53 and 54 for
signals, terminal 55 common. MCB 101 terminals
11 and 12 for signals, terminal 10 common. MCB
109 terminals 1, 3, 5 for signals, terminals 2, 4, 6
common).
Check that the frequency converter programming
•
and switch settings match the analog signal type.
Perform Input Terminal Signal Test.
•
WARNING/ALARM 3, No motor
No motor has been connected to the output of the
frequency converter.
WARNING/ALARM 4, Mains phase loss
A phase is missing on the supply side, or the mains
voltage imbalance is too high. This message also appears
for a fault in the input rectifier on the frequency converter.
Options are programmed at 14-12 Function at MainsImbalance.
Troubleshooting
Check the supply voltage and supply currents to the
frequency converter.
WARNING 5, DC link voltage high
The intermediate circuit voltage (DC) is higher than the
high voltage warning limit. The limit is dependent on the
frequency converter voltage rating. The unit is still active.
WARNING 6, DC link voltage low
The intermediate circuit voltage (DC) is lower than the low
voltage warning limit. The limit is dependent on the
frequency converter voltage rating. The unit is still active.
If the intermediate circuit voltage exceeds the limit, the
frequency converter trips after a time.
Troubleshooting
Connect a brake resistor
•
Extend the ramp time
•
Change the ramp type
•
Activate the functions in 2-10 Brake Function
•
Increase 14-26 Trip Delay at Inverter Fault
•
WARNING/ALARM 8, DC under voltage
If the intermediate circuit voltage (DC link) drops below
the under voltage limit, the frequency converter checks if a
24 V DC backup supply is connected. If no 24 V DC backup
supply is connected, the frequency converter trips after a
fixed time delay. The time delay varies with unit size.
Troubleshooting
Check that the supply voltage matches the
•
frequency converter voltage.
Perform input voltage test.
•
Perform soft charge circuit test.
•
WARNING/ALARM 9, Inverter overload
The frequency converter is about to cut out because of an
overload (too high current for too long). The counter for
electronic, thermal inverter protection gives a warning at
98% and trips at 100%, while giving an alarm. The
frequency converter cannot be reset until the counter is
below 90%.
The fault is that the frequency converter is overloaded by
more than 100% for too long.
Troubleshooting
Compare the output current shown on the LCP
•
with the frequency converter rated current.
Compare the output current shown on the LCP
•
with measured motor current.
Display the Thermal Drive Load on the LCP and
•
monitor the value. When running above the
frequency converter continuous current rating,
the counter should increase. When running below
the frequency converter continuous current
rating, the counter should decrease.
WARNING/ALARM 10, Motor overload temperature
According to the electronic thermal protection (ETR), the
motor is too hot. Select whether the frequency converter
gives a warning or an alarm when the counter reaches
100% in 1-90 Motor Thermal Protection. The fault occurs
when the motor is overloaded by more than 100% for too
long.
Troubleshooting
Check for motor overheating.
•
Check if the motor is mechanically overloaded
•
54MG16F102 - VLT® is a registered Danfoss trademark
Warnings and AlarmsVLT® Refrigeration Drive 110-250 kW Operating Instructions
Check that the motor current set in 1-24 Motor
•
Current is correct.
Ensure that Motor data in parameters 1-20
•
through 1-25 are set correctly.
If an external fan is in use, check in 1-91 Motor
•
External Fan that it is selected.
Running AMA in 1-29 Automatic Motor Adaptation
•
(AMA) tunes the frequency converter to the
motor more accurately and reduces thermal
loading.
WARNING/ALARM 11, Motor thermistor over temp
The thermistor might be disconnected. Select whether the
frequency converter gives a warning or an alarm in
1-90 Motor Thermal Protection.
Troubleshooting
Check for motor overheating.
•
Check if the motor is mechanically overloaded.
•
Check that the thermistor is connected correctly
•
between either terminal 53 or 54 (analog voltage
input) and terminal 50 (+10 V supply) and that
the terminal switch for 53 or 54 is set for voltage.
Check 1-93 Thermistor Source selects terminal 53
or 54.
When using digital inputs 18 or 19, check that
•
the thermistor is connected correctly between
either terminal 18 or 19 (digital input PNP only)
and terminal 50.
If a KTY sensor is used, check for correct
•
connection between terminals 54 and 55
If using a thermal switch or thermistor, check that
•
the programming if 1-93 Thermistor Resource
matches sensor wiring.
If using a KTY sensor, check the programming of
•
1-95 KTY Sensor Type, 1-96 KTY Thermistor
Resource, and 1-97 KTY Threshold level match
sensor wiring.
WARNING/ALARM 12, Torque limit
The torque has exceeded the value in 4-16 Torque Limit
Motor Mode or the value in 4-17 Torque Limit Generator
Mode. 14-25 Trip Delay at Torque Limit can change this from
a warning only condition to a warning followed by an
alarm.
Troubleshooting
If the motor torque limit is exceeded during ramp
•
up, extend the ramp up time.
If the generator torque limit is exceeded during
•
ramp down, extend the ramp down time.
If torque limit occurs while running, possibly
•
increase the torque limit. Be sure the system can
operate safely at a higher torque.
Check the application for excessive current draw
•
on the motor.
WARNING/ALARM 13, Over current
The inverter peak current limit (approximately 200% of the
rated current) is exceeded. The warning lasts about 1.5
secs., then the frequency converter trips and issues an
alarm. This fault may be caused by shock loading or fast
acceleration with high inertia loads. If extended mechanical
brake control is selected, trip can be reset externally.
Troubleshooting
Remove power and check if the motor shaft can
•
be turned.
Check that the motor size matches the frequency
•
converter.
Check parameters 1-20 through 1-25 for correct
•
motor data.
ALARM 14, Earth (ground) fault
There is current from the output phases to earth, either in
the cable between the frequency converter and the motor
or in the motor itself.
Troubleshooting:
Remove power to the frequency converter and
•
repair the earth fault.
Check for earth faults in the motor by measuring
•
the resistance to ground of the motor leads and
the motor with a megohmmeter.
Perform current sensor test.
•
ALARM 15, Hardware mismatch
A fitted option is not operational with the present control
board hardware or software.
Record the value of the following parameters and contact
your Danfoss supplier:
15-40 FC Type
•
15-41 Power Section
•
15-42 Voltage
•
15-43 Software Version
•
15-45 Actual Typecode String
•
15-49 SW ID Control Card
•
15-50 SW ID Power Card
•
15-60 Option Mounted
•
15-61 Option SW Version (for each option slot)
•
ALARM 16, Short circuit
There is short-circuiting in the motor or motor wiring.
Remove power to the frequency converter and repair the
short circuit.
WARNING/ALARM 17, Control word timeout
There is no communication to the frequency converter.
99
MG16F102 - VLT® is a registered Danfoss trademark55
Warnings and AlarmsVLT® Refrigeration Drive 110-250 kW Operating Instructions
The warning will only be active when 8-04 Control TimeoutFunction is NOT set to OFF.
If 8-04 Control Timeout Function is set to Stop and Trip, a
warning appears and the frequency converter ramps down
until it trips then displays an alarm.
Troubleshooting:
Check connections on the serial communication
•
cable.
Increase 8-03 Control Timeout Time
•
Check the operation of the communication
•
equipment.
Verify a proper installation based on EMC
•
requirements.
ALARM 18, Start failed
The speed has not been able to exceed AP-70 CompressorStart Max Speed [RPM] during start within the allowed time.
(set in AP-72 Compressor Start Max Time to Trip). This may
be caused by a blocked motor.
WARNING 23, Internal fan fault
The fan warning function is an extra protective function
that checks if the fan is running/mounted. The fan warning
can be disabled in 14-53 Fan Monitor ([0] Disabled).
99
For the D, E, and F Frame filters, the regulated voltage to
the fans is monitored.
Troubleshooting
Check fan resistance.
•
Check soft charge fuses.
•
WARNING 24, External fan fault
The fan warning function is an extra protective function
that checks if the fan is running/mounted. The fan warning
can be disabled in 14-53 Fan Monitor ([0] Disabled).
Troubleshooting
Check fan resistance.
•
Check soft charge fuses.
•
WARNING 25, Brake resistor short circuit
The brake resistor is monitored during operation. If a short
circuit occurs, the brake function is disabled and the
warning appears. The frequency converter is still
operational but without the brake function. Remove power
to the frequency converter and replace the brake resistor
(see 2-15 Brake Check).
WARNING/ALARM 26, Brake resistor power limit
The power transmitted to the brake resistor is calculated as
a mean value over the last 120 s of run time. The
calculation is based on the intermediate circuit voltage and
the brake resistance value set in 2-16 AC brake Max.Current. The warning is active when the dissipated braking
is higher than 90% of the brake resistance power. If [2] Trip
is selected in 2-13 Brake Power Monitoring, the frequency
converter will trip when the dissipated braking power
reaches 100%.
WARNING
There is a risk of substantial power being transmitted to
the brake resistor if the brake transistor is short-circuited.
WARNING/ALARM 27, Brake chopper fault
The brake transistor is monitored during operation and if a
short circuit occurs, the brake function is disabled and a
warning is issued. The frequency converter is still
operational but, since the brake transistor has shortcircuited, substantial power is transmitted to the brake
resistor, even if it is inactive.
Remove power to the frequency converter and remove the
brake resistor.
This alarm/warning could also occur should the brake
resistor overheat. Terminals 104 and 106 are available as
brake resistors Klixon inputs.
WARNING/ALARM 28, Brake check failed
The brake resistor is not connected or not working.
Check 2-15 Brake Check.
ALARM 29, Heatsink temp
The maximum temperature of the heatsink has been
exceeded. The temperature fault will not reset until the
temperature falls below a defined heatsink temperature.
The trip and reset points are different based on the
frequency converter power size.
Troubleshooting
Check for the following conditions.
Ambient temperature too high.
•
Motor cable too long.
•
Incorrect airflow clearance above and below the
•
frequency converter
Blocked airflow around the frequency converter.
•
Damaged heatsink fan.
•
Dirty heatsink.
•
For the D, E, and F Frame sizes, this alarm is based on the
temperature measured by the heatsink sensor mounted
inside the IGBT modules. For the F Frame sizes, this alarm
can also be caused by the thermal sensor in the Rectifier
module.
Troubleshooting
Check fan resistance.
•
Check soft charge fuses.
•
IGBT thermal sensor.
•
ALARM 30, Motor phase U missing
Motor phase U between the frequency converter and the
motor is missing.
Remove power from the frequency converter and check
motor phase U.
ALARM 31, Motor phase V missing
Motor phase V between the frequency converter and the
motor is missing.
56MG16F102 - VLT® is a registered Danfoss trademark
Warnings and AlarmsVLT® Refrigeration Drive 110-250 kW Operating Instructions
Remove power from the frequency converter and check
motor phase V.
ALARM 32, Motor phase W missing
Motor phase W between the frequency converter and the
motor is missing.
Remove power from the frequency converter and check
motor phase W.
ALARM 33, Inrush fault
Too many power-ups have occurred within a short time
period. Let the unit cool to operating temperature.
WARNING/ALARM 34, Fieldbus communication fault
The fieldbus on the communication option card is not
working.
WARNING/ALARM 36, Mains failure
This warning/alarm is only active if the supply voltage to
the frequency converter is lost and 14-10 Mains Failure is
NOT set to [0] No Function. Check the fuses to the
frequency converter and mains power supply to the unit.
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
the table below is displayed.
Troubleshooting
Cycle power
•
Check that the option is properly installed
•
Check for loose or missing wiring
•
It may be necessary to contact your Danfoss supplier or
service department. Note the code number for further
troubleshooting directions.
No.Text
0Serial port cannot be initialised. Contact your
Danfoss supplier or Danfoss Service Department.
256-258Power EEPROM data is defective or too old.
512Control board EEPROM data is defective or too old.
513Communication time out reading EEPROM data
514Communication time out reading EEPROM data
515Application oriented control cannot recognize the
EEPROM data.
516Cannot write to the EEPROM because a write
command is on progress.
517Write command is under time out
518Failure in the EEPROM
519Missing or invalid barcode data in EEPROM
783Parameter value outside of min/max limits
1024-1279 A centelegram that has to be sent couldn't be
sent.
1281Digital signal processor flash timeout
1282Power micro software version mismatch
1283Power EEPROM data version mismatch
1284Cannot read digital signal processor software
version
1299Option SW in slot A is too old
No.Text
1300Option SW in slot B is too old
1301Option SW in slot C0 is too old
1302Option SW in slot C1 is too old
1315Option SW in slot A is not supported (not allowed)
1316Option SW in slot B is not supported (not allowed)
1317Option SW in slot C0 is not supported (not
allowed)
1318Option SW in slot C1 is not supported (not
allowed)
1379Option A did not respond when calculating
platform version
1380Option B did not respond when calculating
platform version
1381Option C0 did not respond when calculating
platform version.
1382Option C1 did not respond when calculating
platform version.
1536An exception in the application oriented control is
registered. Debug information written in LCP
1792DSP watchdog is active. Debugging of power part
data, motor oriented control data not transferred
correctly.
2049Power data restarted
2064-2072 H081x: option in slot x has restarted
2080-2088 H082x: option in slot x has issued a powerup-wait
2096-2104 H983x: option in slot x has issued a legal
powerup-wait
2304Could not read any data from power EEPROM
2305Missing SW version from power unit
2314Missing power unit data from power unit
2315Missing SW version from power unit
2316Missint lo_statepage from power unit
2324Power card configuration is determined to be
incorrect at power up
2325A power card has stopped communicating while
main power is applied
2326Power card configuration is determined to be
incorrect after the delay for power cards to
register.
2327Too many power card locations have been
registered as present.
2330Power size information between the power cards
does not match.
2561No communication from DSP to ATACD
2562No communication from ATACD to DSP (state
running)
2816Stack overflow control board module
2817Scheduler slow tasks
2818Fast tasks
2819Parameter thread
2820LCP stack overflow
2821Serial port overflow
2822USB port overflow
2836cfListMempool too small
99
MG16F102 - VLT® is a registered Danfoss trademark57
Warnings and AlarmsVLT® Refrigeration Drive 110-250 kW Operating Instructions
No.Text
3072-5122 Parameter value is outside its limits
5123Option in slot A: Hardware incompatible with
control board hardware
5124Option in slot B: Hardware incompatible with
Control board hardware.
5125Option in slot C0: Hardware incompatible with
control board hardware.
5126Option in slot C1: Hardware incompatible with
control board hardware.
5376-6231 Out of memory
Table 9.3
WARNING 49, Speed limit
When the speed is not within the specified range in
4-11 Motor Speed Low Limit [RPM] and 4-13 Motor Speed
High Limit [RPM], the frequency converter shows a warning.
When the speed is below the specified limit in
1-86 Compressor Min. Speed for Trip [RPM] (except when
starting or stopping) the frequency converter will trip.
ALARM 50, AMA calibration failed
Contact your Danfoss supplier or Danfoss Service
Department.
ALARM 51, AMA check U
nom
and I
nom
The settings for motor voltage, motor current, and motor
power are wrong. Check the settings in parameters 1-20 to
ALARM 39, Heatsink sensor
No feedback from the heatsink temperature sensor.
The signal from the IGBT thermal sensor is not available on
the power card. The problem could be on the power card,
on the gate drive card, or the ribbon cable between the
power card and gate drive card.
WARNING 40, Overload of digital output terminal 27
Check the load connected to terminal 27 or remove shortcircuit connection. Check 5-00 Digital I/O Mode and
5-01 Terminal 27 Mode.
99
WARNING 41, Overload of digital output terminal 29
Check the load connected to terminal 29 or remove shortcircuit connection. Check 5-00 Digital I/O Mode and
5-02 Terminal 29 Mode.
WARNING 42, Overload of digital output on X30/6 or
overload of digital output on X30/7
For X30/6, check the load connected to X30/6 or remove
the short-circuit connection. Check 5-32 Term X30/6 DigiOut (MCB 101).
For X30/7, check the load connected to X30/7 or remove
the short-circuit connection. Check 5-33 Term X30/7 DigiOut (MCB 101).
ALARM 46, Power card supply
The supply on the power card is out of range.
There are three power supplies generated by the switch
mode power supply (SMPS) on the power card: 24 V, 5 V,
±18 V. When powered with 24 V DC with the MCB 107
option, only the 24 V and 5 V supplies are monitored.
When powered with three phase mains voltage, all three
supplies are monitored.
WARNING 47, 24 V supply low
The 24 V DC is measured on the control card. The external
24 V DC backup power supply may be overloaded,
otherwise contact your Danfoss supplier.
WARNING 48, 1.8 V supply low
The 1.8 V DC supply used on the control card is outside of
allowable limits. The power supply is measured on the
control card. Check for a defective control card. If an
option card is present, check for an overvoltage condition.
1-25.
ALARM 52, AMA low I
nom
The motor current is too low. Check the settings.
ALARM 53, AMA motor too big
The motor is too big for the AMA to operate.
ALARM 54, AMA motor too small
The motor is too small for the AMA to operate.
ALARM 55, AMA Parameter out of range
The parameter values of the motor are outside of the
acceptable range. AMA will not run.
56 ALARM, AMA interrupted by user
The user has interrupted the AMA.
ALARM 57, AMA internal fault
Try to restart AMA again a number of times, until the AMA
is carried out. Note that repeated runs may heat the motor
to a level where the resistance Rs and Rr are increased. In
most cases, however, this is not critical.
ALARM 58, AMA internal fault
Contact your Danfoss supplier.
WARNING 59, Current limit
The current is higher than the value in 4-18 Current Limit.
Ensure that Motor data in parameters 1-20 through 1-25
are set correctly. Possibly increase the current limit. Be sure
that the system can operate safely at a higher limit.
WARNING 60, External interlock
External interlock has been activated. To resume normal
operation, apply 24 V DC to the terminal programmed for
external interlock and reset the frequency converter (via
serial communication, digital I/O, or by pressing [Reset]).
WARNING/ALARM 61, Tracking error
An error between calculated motor speed and speed
measurement from feedback device. The function Warning/
Alarm/Disable is set in 4-30 Motor Feedback Loss Function.
Accepted error setting in 4-31 Motor Feedback Speed Error
and the allowed time the error occur setting in 4-32 MotorFeedback Loss Timeout. During a commissioning procedure
the function may be effective.
WARNING 62, Output frequency at maximum limit
The output frequency is higher than the value set in
4-19 Max Output Frequency.
58MG16F102 - VLT® is a registered Danfoss trademark
Warnings and AlarmsVLT® Refrigeration Drive 110-250 kW Operating Instructions
ALARM 64, Voltage Limit
The load and speed combination demands a motor
voltage higher than the actual DC link voltage.
WARNING/ALARM 65, Control card over temperature
The cutout temperature of the control card is 80° C.
Troubleshooting
Check that the ambient operating temperature is
•
within limits
Check for clogged filters
•
Check fan operation
•
Check the control card
•
WARNING 66, Heatsink temperature low
The frequency converter is too cold to operate. This
warning is based on the temperature sensor in the IGBT
module.
Increase the ambient temperature of the unit. Also, a
trickle amount of current can be supplied to the frequency
converter whenever the motor is stopped by setting
2-00 DC Hold/Preheat Current at 5% and 1-80 Function at
Stop
Troubleshooting
The heatsink temperature measured as 0° C could indicate
that the temperature sensor is defective, causing the fan
speed to increase to the maximum. If the sensor wire
between the IGBT and the gate drive card is disconnected,
this warning would result. Also, check the IGBT thermal
sensor.
ALARM 67, Option module configuration has changed
One or more options have either been added or removed
since the last power-down. Check that the configuration
change is intentional and reset the unit.
ALARM 68, Safe Stop activated
Safe stop has been activated. To resume normal operation,
apply 24 V DC to terminal 37, then send a reset signal (via
Bus, Digital I/O, or by pressing the reset key).
ALARM 69, Power card temperature
The temperature sensor on the power card is either too
hot or too cold.
Troubleshooting
Check the operation of the door fans.
•
Check that the filters for the door fans are not
•
blocked.
Check that the gland plate is properly installed
•
on IP21/IP 54 (NEMA 1/12) frequency converters.
ALARM 70, Illegal frequency converter configuration
The control card and power card are incompatible. Contact
your supplier with the type code of the unit from the
nameplate and the part numbers of the cards to check
compatibility.
ALARM 72, Dangerous failure
Safe Stop with Trip Lock. Unexpected signal levels on safe
stop and digital input from the MCB 112 PTC thermistor
card.
WARNING 73, Safe stop auto restart
Safe stopped. With automatic restart enabled, the motor
may start when the fault is cleared.
WARNING 76, Power unit setup
The required number of power units does not match the
detected number of active power units.
Troubleshooting:
When replacing an F-frame module, this will occur if the
power specific data in the module power card does not
match the rest of the frequency converter. Please confirm
the spare part and its power card are the correct part
number.
77 WARNING, Reduced power mode
This warning indicates that the frequency converter is
operating in reduced power mode (i.e. less than the
allowed number of inverter sections). This warning will be
generated on power cycle when the frequency converter is
set to run with fewer inverters and will remain on.
ALARM 79, Illegal power section configuration
The scaling card is the incorrect part number or not
installed. Also MK102 connector on the power card could
not be installed.
ALARM 80, Drive initialised to default value
Parameter settings are initialised to default settings after a
manual reset. Reset the unit to clear the alarm.
ALARM 81, CSIV corrupt
CSIV file has syntax errors.
ALARM 82, CSIV parameter error
CSIV failed to init a parameter.
WARNING/ALARM 104, Mixing fan fault
The fan monitor checks that the fan is spinning at drive
power-up or whenever the mixing fan is turned on. If the
fan is not operating, then the fault is annunciated. The
mixing-fan fault can be configured as a warning or an
alarm trip by 14-53 Fan Monitor.
Troubleshooting
Cycle power to the frequency converter to determine if the
warning/alarm returns.
WARNING 250, New spare part
A component in the frequency converter has been
replaced. Reset the frequency converter for normal
operation.
WARNING 251, New typecode
The power card or other components have been replaced
and the typecode changed. Reset to remove the warning
and resume normal operation.
99
MG16F102 - VLT® is a registered Danfoss trademark59
Missing input power
Missing or open fuses or circuit
breaker tripped
No power to the LCPCheck the LCP cable for proper
Shortcut on control voltage
(terminal 12 or 50) or at control
terminals
Wrong LCP (LCP from VLT® 2800
or 5000/6000/8000/ FCD or FCM)
Wrong contrast setting
Display (LCP) is defectiveTest using a different LCP.Replace the faulty LCP or
Internal voltage supply fault or
SMPS is defective
Overloaded power supply (SMPS)
due to improper control wiring or
a fault within the frequency
converter
Service switch open or missing
motor connection
No mains power with 24 V DC
option card
LCP StopCheck if [Off] has been pressed.Press [Auto On] or [Hand On]
Missing start signal (Standby)
Motor coast signal active
(Coasting)
Wrong reference signal sourceCheck reference signal: Local,
See Table 4.1.
See open fuses and tripped circuit
breaker in this table for possible
causes.
connection or damage.
Check the 24 V control voltage
supply for terminal 12/13 to 20-39
or 10 V supply for terminal 50 to
55.
Use only LCP 101 (P/N 130B1124)
Contact supplier.
To rule out a problem in the
control wiring, disconnect all
control wiring by removing the
terminal blocks.
Check if the motor is connected
and the connection is not
interrupted (by a service switch or
other device).
If the display is functioning but no
output, check that mains power is
applied to the frequency converter.
Check 5-10 Terminal 18 Digital Input
for correct setting for terminal 18
(use default setting).
Check 5-12 Coast inv. for correct
setting for terminal 27 (use default
setting).
remote or bus reference? Preset
reference active? Terminal
connection correct? Scaling of
terminals correct? Reference signal
available?
Check the input power source.
Follow the recommendations
provided
Replace the faulty LCP or
connection cable.
Wire the terminals properly.
or LCP 102 (P/N 130B1107).
Press [Status] + [▲]/[▼] to adjust
the contrast.
connection cable.
If the display stays lit, then the
problem is in the control wiring.
Check the wiring for shorts or
incorrect connections. If the display
continues to cut out, follow the
procedure for display dark.
Connect the motor and check the
service switch.
Apply mains power to run the unit.
(depending on operation mode) to
run the motor.
Apply a valid start signal to start
the motor.
Apply 24 V on terminal 27 or
program this terminal to No
operation.
Program correct settings. Check
3-13 Reference Site. Set preset
reference active in parameter
group 3-1* References. Check for
correct wiring. Check scaling of
terminals. Check reference signal.
60MG16F102 - VLT® is a registered Danfoss trademark
Active reversing signalCheck if a reversing command is
Wrong motor phase connection
Frequency limits set wrong
Reference input signal not scaled
correctly
Possible incorrect parameter
settings
Possible over-magnetizationCheck for incorrect motor settings
Possible incorrect settings in the
brake parameters. Possible too
short ramp down times.
Phase to phase shortMotor or panel has a short phase
Motor overloadMotor is overloaded for the
Loose connectionsPerform pre-startup check for loose
Problem with mains power (See
Alarm 4 Mains phase loss
description)
Problem with the frequency
converter
Problem with motor or motor
wiring
Problem with the frequency
converters
Check that 4-10 Motor SpeedDirection is programmed correctly.
programmed for the terminal in
parameter group 5-1* Digital inputs.
Check output limits in 4-13 Motor
Speed High Limit [RPM], 4-14 Motor
Speed High Limit [Hz] and 4-19 Max
Output Frequency
Check reference input signal
scaling in 6-* Analog I/O mode and
parameter group 3-1* References.
Reference limits in parameter
group 3-0*.
Check the settings of all motor
parameters, including all motor
compensation settings. For closed
loop operation, check PID settings.
in all motor parameters.
Check brake parameters. Check
ramp time settings.
to phase. Check motor and panel
phase for shorts.
application.
connections.
Rotate input power leads into the
frequency converter one position: A
to B, B to C, C to A.
Rotate input power leads into the
frequency converter one position: A
to B, B to C, C to A.
Rotate output motor leads one
position: U to V, V to W, W to U.
Rotate output motor leads one
position: U to V, V to W, W to U.
Program correct settings.
Deactivate reversing signal.
See in this manual.
Program correct limits.
Program correct settings.
Check settings in parameter group
1-6* Analog I/O mode. For closed
loop operation, check settings in
parameter group 20-0* Feedback.
Check motor settings in parameter
groups 1-2* Motor data, 1-3* Adv
motor data, and 1-5* Load indep.
setting.
Check parameter group 2-0* DC
brake and 3-0* Reference limits.
Eliminate any shorts detected.
Perform startup test and verify
motor current is within specifications. If motor current is
exceeding nameplate full load
current, motor may run only with
reduced load. Review the specifications for the application.
Tighten loose connections.
If imbalanced leg follows the wire,
it is a power problem. Check mains
power supply.
If imbalance leg stays on same
input terminal, it is a problem with
the unit. Contact the supplier.
If imbalanced leg follows the wire,
the problem is in the motor or
motor wiring. Check motor and
motor wiring.
If imbalance leg stays on same
output terminal, it is a problem
with the unit. Contact the supplier.
10
10
MG16F102 - VLT® is a registered Danfoss trademark61
Bypass critical frequencies by using
parameters in parameter group
4-6*.
Acoustic noise or vibration
(e.g. a fan blade is making
noise or vibrations at
certain frequencies)
Table 10.1
Resonances, e.g. in the motor/fan
system
Turn off over-modulation in
14-03 Overmodulation.
Change switching pattern and
frequency in parameter group
14-0*.
Increase Resonance Dampening in
1-64 Resonance Dampening.
Check if noise and/or vibration
have been reduced to an
acceptable limit.
10
62MG16F102 - VLT® is a registered Danfoss trademark
Mains supply (L1, L2, L3)
Supply voltage380-480 V ±10%
Supply voltage525-600 V ±10%
Mains voltage low/mains drop-out:
During low mains voltage or a mains drop-out, the frequency converter continues until the intermediate circuit voltage drops
below the minimum stop level, which corresponds typically to 15% below the frequency converter's lowest rated supply voltage.
Power-up and full torque cannot be expected at mains voltage lower than 10% below the frequency converter's lowest rated
supply voltage.
Supply frequency50/60 Hz ±5%
Max. imbalance temporary between mains phases3.0 % of rated supply voltage
True Power Factor (λ)≥ 0.9 nominal at rated load
Displacement Power Factor (cosφ) near unity(> 0.98)
Switching on input supply L1, L2, L3 (power-ups)maximum once/2 min.
Environment according to EN60664-1overvoltage category III / pollution degree 2
The unit is suitable for use on a circuit capable of delivering not more than 100.000 RMS symmetrical Amperes, 480/600 V
maximum.
Motor output (U, V, W)
Output voltage0-100% of supply voltage
Output frequency0-800* Hz
Switching on outputUnlimited
Ramp times1-3600 s
* Voltage and power dependent
Torque characteristics
Starting torque (Constant torque)maximum 110% for 1 min.
Starting torquemaximum 135% up to 0.5 s
Overload torque (Constant torque)maximum 110% for 1 min.
*Percentage relates to the frequency converter's nominal torque.
Cable lengths and cross sections
Max. motor cable length, screened/armoured150 m
Max. motor cable length, unscreened/unarmoured300 m
Max. cross section to motor, mains, load sharing and brake *
Maximum cross section to control terminals, rigid wire1.5 mm2/16 AWG (2x0.75 mm2)
Maximum cross section to control terminals, flexible cable1 mm2/18 AWG
Maximum cross section to control terminals, cable with enclosed core0.5 mm2/20 AWG
Minimum cross section to control terminals0.25 mm
* See 11.2.1 Mains Supply 3x380-480 VAC - High Power for more information!
11
11
*
*
*
2
MG16F102 - VLT® is a registered Danfoss trademark63
, 32, 33,
LogicPNP or NPN
Voltage level0-24 V DC
Voltage level, logic'0' PNP<5 V DC
Voltage level, logic'1' PNP>10 V DC
Voltage level, logic '0' NPN>19 V DC
Voltage level, logic '1' NPN<14 V DC
Maximum voltage on input28 V DC
Input resistance, R
i
approx. 4 kΩ
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
1) Terminals 27 and 29 can also be programmed as output.
Analog inputs
Number of analog inputs2
Terminal number53, 54
ModesVoltage or current
Mode selectSwitch S201 and switch S202
Voltage modeSwitch S201/switch S202 = OFF (U)
Voltage level0 to +10 V (scaleable)
Input resistance, R
i
approx. 10 kΩ
Max. voltage±20 V
Current modeSwitch S201/switch S202 = ON (I)
Current level0/4 to 20 mA (scaleable)
Input resistance, R
i
approx. 200 Ω
Max. current30 mA
Resolution for analog inputs10 bit (+ sign)
Accuracy of analog inputsMax. error 0.5% of full scale
Bandwidth200 Hz
The analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Illustration 11.1
64MG16F102 - VLT® is a registered Danfoss trademark
Pulse inputs
Programmable pulse inputs2
Terminal number pulse29, 33
Max. frequency at terminal, 29, 33110 kHz (Push-pull driven)
Max. frequency at terminal, 29, 335 kHz (open collector)
Min. frequency at terminal 29, 334 Hz
Voltage levelsee 11.1.1 Digital Inputs
Maximum voltage on input28 V DC
Input resistance, R
Pulse input accuracy (0.1-1 kHz)Max. error: 0.1% of full scale
Analog output
Number of programmable analog outputs1
Terminal number42
Current range at analog output0/4-20 mA
Max. resistor load to common at analog output500 Ω
Accuracy on analog outputMax. error: 0.8% of full scale
Resolution on analog output8 bit
The analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Control card, RS-485 serial communication
Terminal number68 (P,TX+, RX+), 69 (N,TX-, RX-)
Terminal number 61Common for terminals 68 and 69
The RS-485 serial communication circuit is functionally seated from other central circuits and galvanically isolated from the
supply voltage (PELV).
Digital output
Programmable digital/pulse outputs2
Terminal number27, 29
Voltage level at digital/frequency output0-24 V
Max. output current (sink or source)40 mA
Max. load at frequency output1 kΩ
Max. capacitive load at frequency output10 nF
Minimum output frequency at frequency output0 Hz
Maximum output frequency at frequency output32 kHz
Accuracy of frequency outputMax. error: 0.1% of full scale
Resolution of frequency outputs12 bit
1) Terminal 27 and 29 can also be programmed as input.
The digital output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Control card, 24 V DC output
Terminal number12, 13
Max. load200 mA
The 24 V DC supply is galvanically isolated from the supply voltage (PELV), but has the same potential as the analog and digital
inputs and outputs.
Relay outputs
Programmable relay outputs2
Relay 01 Terminal number1-3 (break), 1-2 (make)
Max. terminal load (AC-1)1) on 1-3 (NC), 1-2 (NO) (Resistive load)240 V AC, 2 A
Max. terminal load (AC-15)1) (Inductive load @ cosφ 0.4)240 V AC, 0.2 A
Max. terminal load (DC-1)1) on 1-2 (NO), 1-3 (NC) (Resistive load)60 V DC, 1 A
Max. terminal load (DC-13)1) (Inductive load)24 V DC, 0.1 A
Relay 02 Terminal number4-6 (break), 4-5 (make)
Max. terminal load (AC-1)1) on 4-5 (NO) (Resistive load)
Max. terminal load (AC-15)1) on 4-5 (NO) (Inductive load @ cosφ 0.4)240 V AC, 0.2 A
Max. terminal load (DC-1)1) on 4-5 (NO) (Resistive load)80 V DC, 2 A
Max. terminal load (DC-13)1) on 4-5 (NO) (Inductive load)24 V DC, 0.1 A
i
2)3)
approx. 4 kΩ
400 V AC, 2 A
1)
11
11
MG16F102 - VLT® is a registered Danfoss trademark65
Max. terminal load (AC-1)1) on 4-6 (NC) (Resistive load)240 V AC, 2 A
Max. terminal load (AC-15)1) on 4-6 (NC) (Inductive load @ cosφ 0.4)240 V AC, 0.2 A
Max. terminal load (DC-1)1) on 4-6 (NC) (Resistive load)50 V DC, 2 A
Max. terminal load (DC-13)1) on 4-6 (NC) (Inductive load)24 V DC, 0.1 A
Min. terminal load on 1-3 (NC), 1-2 (NO), 4-6 (NC), 4-5 (NO)24 V DC 10 mA, 24 V AC 20 mA
Environment according to EN 60664-1overvoltage category III/pollution degree 2
1) IEC 60947 parts 4 and 5
The relay contacts are galvanically isolated from the rest of the circuit by reinforced isolation (PELV).
2) Overvoltage Category II
3) UL applications 300 V AC 2 A
Control card, 10 V DC output
Terminal number50
Output voltage10.5 V ±0.5 V
Max. load25 mA
The 10 V DC supply is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
Control characteristics
Resolution of output frequency at 0-1000 Hz±0.003 Hz
System response time (terminals 18, 19, 27, 29, 32, 33)≤ 2 ms
Speed control range (open loop)1:100 of synchronous speed
Speed accuracy (open loop)30-4000 rpm: Maximum error of ±8 rpm
All control characteristics are based on a 4-pole asynchronous motor
Surroundings
Enclosure, frame size D and EIP00, IP21, IP54
Enclosure, frame size FIP21, IP54
Vibration test0.7 g
Relative humidity5% - 95%(IEC 721-3-3; Class 3K3 (non-condensing) during operation
Aggressive environment (IEC 60068-2-43) H2S test
class kD
Test method according to IEC 60068-2-43 H2S (10 days)
Ambient temperature (at 60 AVM switching mode)
- with deratingmax. 55 °C
- with full output power, typical EFF2 motorsmax. 50 °C
- at full continuous FC output currentmax. 45 °C
1)
For more information on derating see the Design Guide, section on Special Conditions.
Minimum ambient temperature during full-scale operation0 °C
Minimum ambient temperature at reduced performance-10 °C
Temperature during storage/transport-25 to +65/70 °C
Maximum altitude above sea level without derating1000 m
Maximum altitude above sea level with derating3000 m
Derating for high altitude, see section on special conditions in the Design Guide
EMC standards, EmissionEN 61800-3, EN 61000-6-3/4, EN 55011, IEC 61800-3
EN 61800-3, EN 61000-6-1/2,
EMC standards, Immunity
EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6
See section on special conditions in the Design Guide!
1)
1)
1)
66MG16F102 - VLT® is a registered Danfoss trademark
Control card performance
Scan interval5 ms
Control card, USB serial communication
USB standard1.1 (Full speed)
USB plugUSB type B “device” plug
CAUTION
Connection to PC is carried out via a standard host/device USB cable.
The USB connection is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
The USB connection is not galvanically isolated from protection earth. Use only isolated laptop/PC as connection to the USB
connector on the frequency converter or an isolated USB cable/converter.
Protection and Features
Electronic thermal motor protection against overload.
•
Temperature monitoring of the heatsink ensures that the frequency converter trips if the temperature reaches a
•
predefined level. An overload temperature cannot be reset until the temperature of the heatsink is below the
values stated in the tables on the following pages (Guideline - these temperatures may vary for different power
sizes, frame sizes, enclosure ratings etc.).
The frequency converter is protected against short-circuits on motor terminals U, V, W.
•
If a mains phase is missing, the frequency converter trips or issues a warning (depending on the load).
•
Monitoring of the intermediate circuit voltage ensures that the frequency converter trips if the intermediate circuit
•
voltage is too low or too high.
The frequency converter is protected against earth faults on motor terminals U, V, W.
•
11
11
MG16F102 - VLT® is a registered Danfoss trademark67
[A]
Estimated power loss
at rated max. load [W] 4),
400 V
Estimated power loss
at rated max. load [W] 4),
460 V
Weight,
enclosure IP21, IP54 [kg]
Weight,
enclosure IP00 [kg]
Efficiency
Output frequency0-800 Hz
Heatsink overtemp. trip
Power card ambient trip
4)
204251304381463
183231291348427
2 x 70
(2 x 2/0)
300350400500630
32343782421351195893
29473665406346525634
96104125136151
8291112123138
90 °C110°C110 °C110 °C110 °C
2 x 70
(2 x 2/0)
2 x 150
(2 x 300 mcm)
0.98
60 °C
2 x 150
(2 x 300 mcm)
2 x 150
(2 x 300 mcm)
Table 11.1 Mains Supply 3x380-480 VAC
68MG16F102 - VLT® is a registered Danfoss trademark
Max. external pre-fuses [A]
Estimated power loss
at rated max. load [W] 4), 600 V
Estimated power loss
at rated max. load [W] 4), 600 V
Weight,
Enclosure IP21, IP54 [kg]
Weight,
Enclosure IP00 [kg]
Efficiency
Output frequency0-600 Hz
Heatsink overtemp. trip
Power card ambient trip
4)
Table 11.2 Mains Supply 3x525-600 V AC
1
158198245299
151189234286
155197240296
2 x 70 (2 x 2/0)2 x 70 (2 x 2/0)
315350350400
2963343040514867
3430361242925156
96104125136
8291112123
0.98
90 °C110 °C110 °C110 °C
60 °C
2 x 150 (2 x 300
mcm)
2 x 150 (2 x 300
mcm)
11
11
1) For type of fuse see 11.3 Fuse Specifications
2) American Wire Gauge.
3) Measured using 5 m screened motor cables at rated load and rated frequency.
4) The typical power loss is at nominal load conditions and expected to be within ±15% (tolerence relates to
variety in voltage and cable conditions). Values are based on a typical motor efficiency (eff2/eff3 border line).
Motors with lower efficiency will also add to the power loss in the frequency converter and opposite. If the
switching frequency is increased comed to the default setting, the power losses may rise significantly. LCP and
MG16F102 - VLT® is a registered Danfoss trademark69
typical control card power consumptions are included. Further options and customer load may add up to 30 W to
the losses. (Though typical only 4 W extra for a fully loaded control card, or options for slot A or slot B, each).
Although measurements are made with state of the art equipment, some measurement inaccuracy must be
allowed for (±5%).
11
70MG16F102 - VLT® is a registered Danfoss trademark
Branch Circuit Protection:
In order to protect the installation against electrical and
fire hazard, all branch circuits in an installation, switch
gear, machines etc., must be short-circuited and overcurrent protected according to national/international
regulations.
Short-circuit Protection:
The frequency converter must be protected against shortcircuit to avoid electrical or fire hazard. Danfoss
recommends using the fuses mentioned below to protect
service personnel and equipment in case of an internal
failure in the frequency conveter. The frequency converter
provides full short-circuit protection in case of a shortcircuit on the motor output.
Over-current Protection:
Provide overload protection to avoid fire hazard due to
overheating of the cables in the installation. The frequency
converter is equipped with an internal over-current
protection that can be used for upstream overload
protection (UL-applications excluded). See 4-18 CurrentLimit. Moreover, fuses or circuit breakers can be used to
provide the over-current protection in the installation.
Over-current protection must always be carried out
according to national regulations.
11.3.2
Non UL Compliance
11
11
If UL/cUL is not to be complied with, we recommend using
the following fuses, which will ensure compliance with
EN50178. In case of malfunction, not following the
recommendation may result in unnecessary damage to the
frequency converter.
N110 - N250
N315380 - 500 Vtype gR
Table 11.3
380 - 500 Vtype gG
MG16F102 - VLT® is a registered Danfoss trademark71
380-500 V: The fuses below are suitable for use on a circuit
capable of delivering 100,000 Arms (symmetrical), With the
proper fusing, the drive Short Circuit Current Rating (SCCR)
is 100,000 Arms.
When tightening all electrical connections it is very
important to tighten with the correct torque. Too low or
too high torque results in a bad electrical connection. Use
a torque wrench to ensure correct torque. Always use a
torque wrench to tighten the bolts.
Fuse Options
Ferraz-Shawmut PN
(Europe)
A50QS300-46,9URD31D08A0315A070URD31KI0315
A50QS350-46,9URD31D08A0350A070URD31KI0350
A50QS400-46,9URD31D08A0400A070URD31KI0400
A50QS500-46,9URD31D08A0550A070URD31KI0550
A50QS600-46,9URD31D08A0630A070URD31KI0630
A50QS800-46,9URD32D08A0800A070URD31KI0800
(North America)
Frame SizeTerminalTorqueBolt size
D1h/D3hMains
Motor
Load sharing
Regen
Earth (Ground)
Brake
D2h/D4hMains
Motor
Regen
Load sharing
Earth (ground)
Brake8.5-20.5 Nm
Table 11.5 Torque for Terminals
19-40 Nm
(168-354 inlbs)
8.5-20.5 Nm
(75-181 in-lbs)
19-40 Nm
(168-354 inlbs)
(75-181 in-lbs)
M10
M8
M10
M8
72MG16F102 - VLT® is a registered Danfoss trademark