
Operating and service manual
124 of 222 pages
518
FC inrush
Alarm
Description
FC Inrush Fault Alarm
Cause
Indication of problems with supply voltage
Trouble
shooting
(A36)
Possible causes:
•
The FC has had too many restarts within short time.
•
CIM5: Manual activation of contactor (K8) on/off too many times.
•
CIM6: Manual activation of contactor (K1) on/off too many times.
•
Loose power connection for the FC.
•
Loose FC-com cable for communication with the FC.
•
Defective FC.
Trouble shooting:
1. Try to correct the error by uploading the latest software version to the
controller.
2.
Verify that supply power for the unit is stable and within specification.
3. Check the FC-com cable for damages and loose connection.
4. Check supply power cables for the FC.
5. The FC may be defective and should be replaced.
If no FC replacement is available, the unit can be rewired for emergency
operation: See “Emergency Operation”
Criteria
May occur if FC is activated too many times during a one minute period (the primary
side). FC has been switched on/off more than twice within 1 minute.
Controller
action
FC shut-down
Log
X
Alarm
X
Alarm light
Slow flash
Consequence
Unit stops and restarts after some min.
Elimination
Alarm will be marked as inactive in the alarm list when reset by the FC. The alarm may
then be deleted.
Log data
Parm 1
Parm 2
Parm 3
Parm 4
Parm 5
Active/Inactive Freq FC
I FC
Psuc
Pdis