Motor Speed Fault

What does Er - 11 mean?

Detected during rotational Auto-Tuning in vector control (A1-02=2 or 3), this fault indicates that the torque reference exceeded 100% during acceleration. This typically points to an issue with acceleration time, incorrect PG (encoder) pulse data, or an excessive mechanical load on the motor. Exceeding torque limits during tuning will lead to inaccurate motor parameterization and potentially inefficient operation.

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.