Help in the event of errors
166 BA8230
Link overvoltage
Cause: The link voltage became too high. A software trigger stage detected this.
Remedy:
If no braking device (chopper) is fitted:
a) Check the “mains voltage” parameter
b) Was the rated motor data entered correctly and was calibration completed?
c) Increase the time of the “braking ramp”.
If a braking device is fitted:
Check whether the braking resistor is of the correct rating and is connected correctly.
Overcurrent
Cause: The momentary value of a phase current reached more than 2.7 times the
effective inverter rated current several times consecutively. A hardware trigger
detected this.
Remedy:
Check the wiring of the inverter and the motor. Check the inverter and motor data
were entered correctly.
Heatsink overtemperature
Cause: The NTC for monitoring the heatsink temperature reported an excessive
temperature. A warning is generated at 5 °C before the trigger point and is also
entered in the event log.
Remedy: Check operation of the fan. Check the wiring of the fan and the NTC.
Motor overtemperature
Cause: The PTC for monitoring the motor temperature at terminal :3 / :4 became high
impedance (> 2.4 kΩ).
Remedy:
Check the inverter and motor data as entered. Check the load cycle of your drive.
Check the wiring and the connection for the motor thermistor.
UCE power dump
Cause: The monitor on the chopper pulse amplifier detected that the collector emitter
voltage of the relevant IGBT became too high while conducting. This indicates a short
circuit or a defective pulse amplifier.
Remedy:
Check the resistor wiring and value.
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