Cause : Motor temperature comes when the temperature of the motor connected to the drive has exceeded its safe operating limit. This means the parameterizable threshold for initiating an alarm has been exceeded.

The A023 alarm in siemens master drive indicates a motor temperature fault. This alarm signifies that the temperature of the motor connected to the drive has exceeded its safe operating limits.

1. Check the motor (load, ventilation, etc.). The current temperature can be read in r009 Motor Tmp.
2. Check the KTY84 input at connector -X104:25,26 for a short-circuit condition.