•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
12.10.16 Fault 8 - System fault, Subcode S8 - No power to driver card
Cause
operation malfunction
defective component
Troubleshooting
Reset the fault and start the drive again.
If the fault shows again, ask instructions from the local distributor.
12.10.17 Fault 8 - System fault, Subcode S9 - Power unit communication (TX)
Cause
operation malfunction
defective component
Troubleshooting
Reset the fault and start the drive again.
If the fault shows again, ask instructions from the local distributor.
12.10.18 Fault 8 - System fault, Subcode S10 - Power unit communication (Trip)
Cause
operation malfunction
defective component
Troubleshooting
Reset the fault and start the drive again.
If the fault shows again, ask instructions from the local distributor.
12.10.19 Fault 8 - System fault, Subcode S11 - Power unit comm. (Measurement)
Cause
operation malfunction
defective component
Troubleshooting
Reset the fault and start the drive again.
If the fault shows again, ask instructions from the local distributor.
12.10.20 Fault 8 - System fault, Subcode S12 - System bus fault (slot D or E)
Cause
Error in system bus option board (OPTD1 or OPTD2) in slot D or E.
operation malfunction
defective component
Troubleshooting
Reset the fault and start the drive again.
If the fault shows again, ask instructions from the local distributor.
Check the cables and connections.
12.10.21 Fault 8 - System fault, Subcode S30 - OPTAF: STO channels are different from each other
Cause
The Safe Disable inputs are in different states. It is not allowed according to EN954-1, category 3. This fault occurs when the Safe
Disable inputs are in different states for more than 5 s.
AQ275638903263en-000601 / DPD00910 | 175
Danfoss A/S © 2022.12
Specifications
VACON® NXS/NXP Air-cooled
Operating Guide
