•
•
•
12.10.88 Fault 40 - Device unknown, Subcode S2 - StarCoupler: power sub units are not identical
Cause
An unknown or mismatching device was connected (the power unit or option board).
Troubleshooting
Ask instructions from the local distributor.
12.10.89 Fault 40 - Device unknown, Subcode S3 - StarCoupler is not compatible with the control
board
Cause
An unknown or mismatching device was connected (the power unit or option board).
Troubleshooting
Ask instructions from the local distributor.
12.10.90 Fault 40 - Device unknown, Subcode S4 - Wrong PropertiesType in control board EEPROM
Cause
An unknown or mismatching device was connected (the power unit or option board).
Troubleshooting
Ask instructions from the local distributor.
12.10.91 Fault 40 - Device unknown, Subcode S5 - Wrong VACON® NXP control board EEPROM size
detected
Cause
An unknown or mismatching device was connected (the power unit or option board).
Troubleshooting
Ask instructions from the local distributor.
12.10.92 Fault 40 - Device unknown, Subcode S6 - Old power unit (Asic) and new software mis-
match
Cause
An unknown or mismatching device was connected (the power unit or option board).
Troubleshooting
Ask instructions from the local distributor.
12.10.93 Fault 40 - Device unknown, Subcode S7 - Old ASIC detected
Cause
An unknown or mismatching device was connected (the power unit or option board).
Troubleshooting
Ask instructions from the local distributor.
12.10.94 Fault 41 - IGBT temperature, Subcode S1 - Calculated IGBT temperature too high
Cause
IGBT Inverter Bridge overtemperature protection has detected too high a short-term overload current.
Troubleshooting
Check the load.
Check the motor frame size.
Make an identification run.
12.10.95 Fault 41 - IGBT temperature, Subcode S3 - Calculated IGBT temperature too high (long-
term protection)
Cause
IGBT Inverter Bridge overtemperature protection has detected too high a short-term overload current.
AQ275638903263en-000601 / DPD00910
186 | Danfoss A/S © 2022.12
Specifications
VACON® NXS/NXP Air-cooled
Operating Guide
