PG Open Circuit

What does PGO mean?

This fault occurs when an open circuit condition is detected in the Pulse Generator (PG) feedback. This means the drive is not receiving proper speed or position feedback from the motor's encoder. This can lead to uncontrolled motor speed, position errors, or loss of precise control if left unaddressed.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check the encoder for mechanical damage or misalignment that could prevent accurate feedback.

2. 4

   Review parameter F1-02 to ensure the chosen stopping method (Ramp to stop, Coast to stop, Fast-Stop, Alarm Only) is appropriate for the application in case of a PGO fault.