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Troubleshooting
Reset unit.
Set the deceleration time longer.
Dimensioning of the brake chopper is not correct.
Use external brake resistor.
11.1.105 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.
11.1.106 Fault 42 - Brake resistor overtemperature, Subcode S3 - Brake resistance too low (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.
11.1.107 Fault 42 - Brake resistor overtemperature, Subcode S4 - Brake resistance not detected
(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.
11.1.108 Fault 42 - Brake resistor overtemperature, Subcode S5 - Brake resistance leakage (earth
fault) (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.
11.1.109 Fault 43 - Encoder fault, Subcode S1 - Encoder 1 channel A is missing
Cause
Problem detected in encoder signals.
Encoder channel A is missing.
AB296635287482en-000301 / DPD00903
344 | Danfoss A/S © 2023.02
Fault Tracing
VACON® NX All-in-One
Application Guide
Summary of Contents for VACON NX
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