Remedy
- Check motor and wiring for short circuits.
- Check brake resistor and wiring.
- Check motor switching.
- Check settings of the motor data.
Cause
- Continuous overcurrent on the inverter/ motor side.
- Overcurrent at the brake chopper (brake transistor).
- DC bus relay has not been closed due to a malfunction.
Description
CiA: Continuous over current (internal)
Keypad display
PU over current
Fault message ID
8784
Severity/response
Fault
- The inverter is disabled immediately. The motor has no torque (is coasting).
- The event can only be reset after a blocking time.
Severity/response - 1
Blocking time: 2 s
Frequency inverter type