Current Measurement Circuit Error

What does InF9 mean?

A detected error in the internal current measurement circuit. This is critical as the drive relies on accurate current feedback for motor control and protection. Inaccurate measurements can lead to incorrect torque, motor damage, or unstable operation.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Perform a motor auto-tuning procedure to recalibrate current sensors if possible and supported.

2. 4

   If the fault persists, it likely indicates a failure of the internal current measurement hardware, requiring repair or replacement.