PG slip error (PGF4)

Under PG mode, when the motor frequency exceeds encoder observer slip range (Pr.10-13) and starts to count, the fault time is longer than the detection time of encoder observer slip (Pr.10-14), PGF4 fault occurs.

When Pr.10-15 = 0, PGF4 is a “Warning”, when the deviation between output frequency and motor frequency is smaller than the encoder observer slip range, the warning is automatically cleared.

When Pr.10-15 = 1 or 2, PGF4 is a “Fault”. You must reset manually.

Reset ASR parameters.
Set correct accel./decel time.

Reset correct values for Pr.10-13 and Pr.10-14.

Reset proper setting values for Pr.06-12 and Pr.11-17–Pr.17-20.

Fault treatment parameter

Pr.10-15
0: Warn and keep operation
1: Fault and ramp to stop
2: Fault and coast to stop