12.10.19 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.
12.10.20 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.
Troubleshooting
•
Check the S1 switch.
•
Check the cabling to the OPTAF board.
•
If the fault shows again, ask instructions from the local distributor.
12.10.21 Fault 8 - System fault, Subcode S31 - OPTAF: Thermistor short circuit detected
Cause
Thermistor short circuit detected.
Troubleshooting
•
Correct the cable connections.
•
Check the jumper for the thermistor short circuit supervision, if the thermistor function is not used and the thermistor input is
short-circuited.
12.10.22 Fault 8 - System fault, Subcode S32 - OPTAF board has been removed
Cause
OPTAF board has been removed. It is not allowed to remove the OPTAF board once the software has recognized it.
Troubleshooting
The system requires a manual acknowledgement using
System
menu parameter 6.5.5 OPTAF Remove. Ask help from the local
distributor.
Specifications
Operating Guide | VACON® NX Inverters FI4-FI8
AQ299433367205en-000101 / DPD00908| 131
Danfoss A/S © 2019.07
Summary of Contents for VACON NX FI4
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