Error description 237-19000
Error message
19000 DQ-LT %1: Overcurrent ID=%4; fault value=%5
Cause of error
The power module of the encoder detected overcurrent.
- Closed-loop control is incorrectly parameterized
- Motor has a short circuit or ground fault
- Volts-per-hertz mode: Run-up ramp is set too small
- U/f mode: Rated current of the motor is significantly greater than that of the motor module
- Incoming power: High discharging and recharging currents in the event of line power failure
- Incoming power: High recharging currents in the event of motor overload and failure of the DC-link voltage
- Incoming power: Short circuit currents during switch-on due to missing commutating reactor.
- Power lines are not correctly connected.
- The power lines exceed the maximum permissible length.
- Power module defective.
Fault value (interpret bit-wise):
Bit 0: Phase U.
Bit 1: Phase V.
Bit 2: Phase W.
Error correction
- Check the motor data; if required, repeat initial servicing
- Check the motor circuit configuration (wye-delta).
- Volts-per-hertz mode: Increase the run-up ramp
- U/f mode: Check the assignment of the rated currents of the motor and motor modules
- Incoming power: Check the line power quality
- Incoming power: Decrease the motor load
- Incoming power: Correct connection of the line commutating reactor
- Check the power cable connections.
- Check the power cables for short-circuit or ground fault.
- Check the length of the power cable connections.
- Exchange the power module