Acceleration Fault

What does Er - 09 mean?

This fault occurs during rotational Auto-Tuning if the motor fails to accelerate within the specified time (C1-01 + 10 seconds). It suggests insufficient torque, an excessive mechanical load, or incorrect acceleration parameters preventing the motor from reaching its target speed during the tuning sequence. Failure to accelerate properly will prevent accurate motor parameter identification.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If the motor is connected to a mechanical load, disconnect it and attempt rotational Auto-Tuning again without the load.