Auto-tuning Resistance Fault

What does Er - 04 mean?

Auto-tuning did not complete within the specified time, or the tuning result for resistance fell outside the parameter set range. This can be caused by incorrect input data, motor wiring issues, or a connected mechanical load interfering with the tuning.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If a motor and a machine are connected, disconnect the motor from the machine and retry tuning.