Cause:
- an overcurrent was detected by the DC link current sensor
Remedial action:
- check the brake resistor connection for short-circuit and ground fault
- check the type of braking resistor used (see the operating instructions chapter "Brake resistor allocation")
- check the motor connection (short circuit, ground fault)
- check the encoder connection
- Disconnect cables at terminals U, V, W and R and apply drive signal. If the fault persists, the device is defective. In this case, consult ZIEHL-ABEGG Customer Service.