K100-C
Dec’15
- 22 -
Variable Speed Drive (cont’d)
Common VSD Fault Codes
Noted below are the most common fault codes that may appear on the VSD. For a more thorough list, please
check the manual which deals exclusively with the Vacon Variable Speed Drive and which accompanied the Unit.
Fault
Code:
Fault:
Possible Causes:
Corrective Measures:
1
Over-current.
Current too high in motor cable.
•
Check loading.
•
Check motor.
•
Check cables.
2
Over-voltage.
The DC link voltage has exceeded the limits.
•
Too short a deceleration time.
•
High voltage spikes in supply.
•
Make deceleration time longer.
•
Check input voltage.
3
Ground fault.
Insulation failure in motor or wiring.
Check motor wires and motor.
8
System fault.
•
Component failure.
•
Faulty operation.
Reset the fault and restart the unit.
13
Frequency converter
under temperature.
Heat-sink temperature in below -10°C.
14
Frequency converter
over temperature.
Heat-sink temperature is over 90°C.
Over temperature warning is issued when the
heat-sink temperature exceeds 85°C.
•
Check the amount and flow of cooling air.
•
Check the heat-sink for dust.
•
Check the ambient temperature.
•
Ensure the switching frequency is not too
high in relation to the ambient temperature
and motor load.
15
Motor stalled.
Motor stall protection has tripped.
Check motor and load.
16
Motor stalled.
Motor is over-loaded.
Decrease motor load.
17
Motor under-load
Motor under-load temperature has tripped.
Check load.
22
EEPRON Checksum
Fault.
Parameter save fault.
•
Faulty operation
•
Component failure
Should the fault re-occur, contact the distributor.
25
Microprocessor
Watchdog Fault.
•
Faulty operation
•
Component failure
•
Rest the fault and restart the unit.
•
Contact distributor.
31
IGBT temperature
(Hardware)
IGBT inverter bridge over-temp protection has
detected too high a short term overload current.
•
Check loading.
•
Check motor size.
•
Make identification run.
32
Fan Cooling
Cooling fan of frequency converter does not start
when the ‘ON’ command is given.
Contact distributor.
50
Analogue Input lin <
4mA
Current at the analogue input < 4 mA.
•
Control cable is broken or loose.
•
Signal source has failed.
Check the current loop circuitry.
52
Keypad
Communication Fault.
The data connection between the control keypad
and the frequency converter is broken.
Check keypad connection and possible keypad
cable.
54
Slot Fault.
Defective option board or slot.
•
Check board and slot.
•
Contact nearest Vacon distributor.
56
PT100 Board
Temperature Fault
Temperature limit values set for the PT100 Board
parameters have been exceeded.
Find the cause of temperature rise.
