Danfoss VACON NXS Series Operating Manual page 217

Operating Guide | VACON® NXS/NXP Air-cooled
12.10.72 Fault 25 - Microprocessor watchdog fault, Subcode S2 - ASIC reset
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.
12.10.73 Fault 26 - Start-up prevented, Subcode S1 - Prevention of accidental start-up
Cause
Start-up of the drive has been prevented. Run request is ON when new application is downloaded to the drive.
Troubleshooting
• Cancel prevention of start-up if it can be done safely.
• Remove Run request.
12.10.74 Fault 26 - Start-up prevented, Subcode S2 - RUN request is kept active after drive returns to
READY state from safe state
Cause
Start-up of the drive has been prevented. START command is ON when returning to READY state after Safe Disable has been active.
Troubleshooting
• Cancel prevention of start-up if it can be done safely.
• Remove Run request.
12.10.75 Fault 26 - Start-up prevented, Subcode S30 - RUN request given too quickly
Cause
Start-up of the drive has been prevented. START command is ON after system software or application was downloaded, or after
application was changed.
Troubleshooting
• Cancel prevention of start-up if it can be done safely.
• Remove Run request.
12.10.76 Fault 29 - Thermistor fault, Subcode S1 - Thermistor input activated on OPTAF board
Cause
The thermistor input of option board has detected increase of the motor temperature.
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Specifications
AQ275638903263en-000301 / DPD00910| 217