Danfoss VLT AutomationDrive FC 301 Programming Manual page 706
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Also See for VLT AutomationDrive FC 301:
- Programming manual (372 pages) ,
- Design manual (214 pages) ,
- Operating instructions manual (112 pages)
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VLT AutomationDrive FC 301/302
Programming Guide
Troubleshooting
HAZARDOUS VOLTAGE
AC drives contain hazardous voltage when connected to AC mains or connected on the DC terminals. Failure to perform installa-
tion, start-up, and maintenance by qualified personnel can result in death or serious injury.
-
Only qualified personnel must perform installation, start-up, and maintenance.
•
Disconnect power before proceeding.
•
Remove the power from the drive and check motor phase W.
7.2.31 ALARM 33, Inrush Fault
Cause
Too many power-ups have occurred within a short time period.
Troubleshooting
•
Let the unit cool to operating temperature.
•
Check potential DC-link fault to ground.
7.2.32 WARNING/ALARM 34, Fieldbus Communication Fault
Cause
The fieldbus on the communication option card is not working.
7.2.33 WARNING/ALARM 35, Option Fault
Cause
An option alarm is received. The alarm is option-specific. The most likely cause is a power-up or a communication fault.
7.2.34 WARNING/ALARM 36, Mains Failure
Cause
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 Func-
tion.
Troubleshooting
•
Check the fuses to the drive and mains supply to the unit.
7.2.35 ALARM 37, Phase Imbalance
Cause
There is a current imbalance between the power units.
7.2.36 ALARM 38, Internal Fault
Cause
When an internal fault occurs, a code number defined in
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 guid-
ance.
Table 1439: Internal Fault Codes
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.
706 | Danfoss A/S © 2022.12
W A R N I N G
Table 1439
is shown.
Troubleshooting
AU275636650261en-000101 / 130R0334
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