Danfoss VACON NXP IP00 - Page 164

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Troubleshooting
Do a check of the motor cooling and loading.
Do a check of the thermistor connection.
(If thermistor input of the option board is not in use it has to be short-circuited).
12.12.75 Fault 29 - Thermistor fault, Subcode S2 - Special application
Cause
The thermistor input of option board has detected increase of the motor temperature.
It is possible to set different responses in the application for this fault. See parameter group Protections.
Troubleshooting
Do a check of the motor cooling and loading.
Do a check of the thermistor connection.
(If thermistor input of the option board is not in use it has to be short-circuited).
12.12.76 Fault 30 - Safe disable
Cause
The input on OPTAF board has opened.
STO inputs SD1 and SD2 are activated through the OPTAF option board.
Troubleshooting
Cancel Safe Disable if it can be done safely.
12.12.77 Fault 31 - IGBT temperature (hardware)
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.
12.12.78 Fault 32 - Fan cooling
Cause
Cooling fan of the AC drive does not start, when ON command is given.
Troubleshooting
Ask instructions from the local distributor.
12.12.79 Fault 34 - CAN bus communication
Cause
Sent message not acknowledged.
Troubleshooting
Make sure that there is another device on the bus with the same configuration.
12.12.80 Fault 35 - Application
Cause
Problem in application software.
Troubleshooting
Ask instructions from the local distributor.
For an application programmer: do a check of the application program.
12.12.81 Fault 36 - Control unit
Cause
The software needs newer version of the control unit.
AQ351737303996en-000201 / DPD00888164 | Danfoss A/S © 2023.09
Specifications
VACON® NXP IP00 Drive Modules
Operating Guide