Danfoss VACON NXS Series Operating Manual page 222

Operating Guide | VACON® NXS/NXP Air-cooled
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.
Troubleshooting
• Check the load.
• Check the motor frame size.
• Make an identification run.
12.10.96 Fault 41 - IGBT temperature, Subcode S4 - Peak current 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.
12.10.97 Fault 41 - IGBT temperature, Subcode S5 - BCU: Filtered current too high for some time
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.
12.10.98 Fault 41 - IGBT temperature, Subcode S6 - BCU: Current momentarily too high
Cause
IGBT Inverter Bridge overtemperature protection has detected too high a short-term overload current.
222 | Danfoss A/S © 2020.02
Specifications
AQ275638903263en-000301 / DPD00910