Danfoss VLT ISD Connection Box Operating Instructions Manual page 44

Faults
Fault/Fault Code on 7-
segment Display
Error code 3201 (hex)
Warning code 3280 (hex)
Warning code 4280 (hex)
Error code 5030 (hex)
Error code 5031 (hex)
Error code FF01 (hex)
Error code FF02 (hex)
Warning code FF90 (hex)
Warning code FF91 (hex)
Warning code FF92 (hex)
8 8
Table 8.1 Troubleshooting Overview
42
®
VLT ISD Connection Box Operating Instructions
Possible Cause
Intermediate circuitry voltage (U
ZK
below absolute minimum U during
DC
operation.
Intermediate circuitry voltage (U
ZK
voltage during operation.
Switch on: Heat sink temperature above
maximum.
Fuse 1 blown.
Fuse 2 blown.
Power up timeout.
Power down timeout.
Switch on: No safety power.
Safety power 1 loss.
Safety power 2 loss.
®
MG75G102 - VLT is a registered Danfoss trademark
Possible Solution
) drops Contact Danfoss Service
) over Contact Danfoss Service
•
Switch connection box off and allow it to cool for 30
minutes before switching it back on
•
Contact Danfoss Service if error recurs
Replace fuse 1
Replace fuse 2
Check output load
Contact Danfoss Service
Check cabling and power supply if safety power needed in
application
Check cabling and power supply stability if safety power
needed in application
Check cabling and power supply stability if safety power
needed in application