WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to use qualified personnel to install, start up, and
maintain the frequency converter can result in death or
serious injury.
•
Disconnect power before proceeding.
Troubleshooting
•
Remove the 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.
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to use qualified personnel to install, start up, and
maintain the frequency converter can result in death or
serious injury.
•
Disconnect power before proceeding.
Troubleshooting
•
Remove the 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.
Troubleshooting
•
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 35, Option fault
An option alarm is received. The alarm is option-specific.
The most likely cause is a power-up or a communication
fault.
WARNING/ALARM 36, Mains failure
This warning/alarm is only active if the supply voltage to
the drive is lost and
parameter 14-10 Mains Failure
is not
set to
[0] No function
.
Troubleshooting
•
Check the fuses to the drive and mains supply to
the unit.
ALARM 37, Phase imbalance
There is a current imbalance between the power units.
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
is shown.
Troubleshooting
•
Cycle power.
•
Check that the option is properly installed.
•
Check for loose or missing wiring.
It may be necessary to contact the Danfoss supplier or
service department. Note the code number for further
troubleshooting directions.
Number
Text
0
The serial port cannot be initialized. Contact the
Danfoss supplier or Danfoss service department.
256–258
The power EEPROM data is defective or too old.
Replace the power card.
512–519
Internal fault. Contact the Danfoss supplier or
Danfoss service department.
783
Parameter value outside of minimum/maximum
limits.
1024–1284
Internal fault. Contact the Danfoss supplier or
Danfoss service department.
1299
The option software in slot A is too old.
1300
The option software in slot B is too old.
1302
The option software in slot C1 is too old.
1315
The option software in slot A is not supported/
allowed.
1316
The option software in slot B is not supported/
allowed.
1318
The option software in slot C1 is not supported/
allowed.
1379–2819
Internal fault. Contact the Danfoss supplier or
Danfoss service department.
1792
Hardware reset of digital signal processor.
1793
Motor-derived parameters not transferred correctly
to the digital signal processor.
1794
Power data not transferred correctly at power-up
to the digital signal processor.
1795
The digital signal processor has received too many
unknown SPI telegrams. The AC drive also uses
this fault code if the MCO does not power up
correctly. This situation can occur due to poor EMC
protection or improper grounding.
1796
RAM copy error.
1798
Software version 48.3X or newer is used with MK1
control card. Replace with MKII issue 8 control
card.
2561
Replace the control card.
2820
LCP stack overflow.
2821
Serial port overflow.
2822
USB port overflow.
3072–5122
Parameter value is outside its limits.
5123
Option in slot A: Hardware incompatible with the
control board hardware.
Troubleshooting
VLT
®
AutomationDrive FC 301/302
334
Danfoss A/S © 10/2018 All rights reserved.
MG33MP02
6
6
Summary of Contents for VLT AutomationDrive FC 302
Page 2: ......