Troubleshooting
•
Do a check of the loading.
•
Do a check of the motor frame size.
•
Make an identification run.
12.10.97 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.
Troubleshooting
•
Do a check of the loading.
•
Do a check of the motor frame size.
•
Make an identification run.
•
Do a check brake resistor resistance.
12.10.98 Fault 42 - Brake resistor overtemperature, Subcode S1 - Internal brake chopper
overtemperature
Cause
Brake resistor overtemperature protection has detected too heavy braking.
Troubleshooting
•
Reset unit.
•
Set the deceleration time longer.
•
Dimensioning of the brake chopper is not correct.
•
Use external brake resistor.
12.10.99 Fault 42 - Brake resistor overtemperature, Subcode S2 - Brake resistance too high (BCU)
Cause
Brake resistor overtemperature protection has detected too heavy braking.
Troubleshooting
•
Reset unit.
•
Set the deceleration time longer.
•
Dimensioning of the brake chopper is not correct.
•
Use external brake resistor.
Specifications
Operating Guide | VACON® NX Inverters FI4-FI8
AQ299433367205en-000101 / DPD00908
150 | Danfoss A/S © 2019.07
Summary of Contents for VACON NX FI4
Page 1: ...Operating Guide VACON NX Inverters FI4 FI8...
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