Yaskawa PG-E3 Motor Encoder Feedback - Manual (Page 29)

7 Troubleshooting
28 YASKAWA ELECTRIC TOBP C730600 52C 1000-Series Option PG-E3 Installation Manual
Incorrect speed feedback scaling
when terminal RP is used as
speed feedback input in V/f
control.
• Set H6-02 to the value of the speed feedback signal frequency when the motor
runs at the maximum speed.
• Adjust the input signal using parameters H6-03 through H6-05.
Incorrect PG encoder pulse
number set.
Check and correct parameter F1-01.
Inappropriate parameter settings.
Check the setting for the overspeed detection level and the overspeed detection
time (F1-08 and F1-09).
Digital Operator Display Fault Name
PGo
PG Encoder Disconnected
Detected when no PG encoder pulses received for a time longer than setting in
F1-14.
Cause Possible Solution
PG encoder cable is
disconnected.
Reconnect the cable.
PG encoder cable wiring is
wrong.
Correct the wiring.
PG encoder does not have
enough power.
Make sure the correct power supply is properly connected to the PG encoder.
Brake control sequence is
incorrect. Correct the brake control sequence and then verify that the brake has been
released.
Digital Operator Display Fault Name
PGoH
PG Encoder Hardware Fault
PG encoder cable is disconnected.
Cause Possible Solution
PG encoder cable is
disconnected.
Reconnect the cable.