Yaskawa PG-X3 Line Driver - Manual (Page 28)

7 Troubleshooting
YASKAWA ELECTRIC TOBP C730600 37B 1000-Series Option PG-X3 Installation Manual 29
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 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 Disconnected
Detected when no PG pulses received for a time longer than setting in F1-14.
Cause Possible Solution
PG cable is disconnected. Reconnect the cable.
PG 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 is holding the PG. Ensure the brake releases properly.
Digital Operator Display Fault Name
PGoH
PG Hardware Fault
PG cable is disconnected.
Cause Possible Solution
PG cable is disconnected. Reconnect the cable.