Yaskawa Option PG-F3 Motor Encoder Feedback - Manual (Page 36)

7 Troubleshooting
36 YASKAWA ELECTRIC TOBP C730600 51F 1000-Series Option PG-F3 Installation Manual
Noise interference along the PG
encoder cable is affecting the A
channel or B channel.
• Check PG encoder wiring and make sure all wiring including shielded wiring is
properly connected.
• If the problem continues after cycling power, replace the PG option or the PG
encoder.
The PG encoder is disconnected
or is not wired properly, or the
PG option or PG encoder are
damaged.
The PG encoder rotational
direction set to F1-05 is in the
opposite direction of the motor
wiring.
Make sure motor wiring for each phase (U, V, W) is connected properly.
Digital Operator Display Fault Name
dv4
Inversion Prevention Detection
Pulses indicate that the motor is rotating in the opposite direction of the speed
reference. Set the number of pulses to trigger inverse detection to F1-19.
Note: To avoid nuisance faults, be sure to disable inverse detection in applications
where the motor may rotate in the opposite direction of the speed reference. Set
F1-19 to 0 to disable this feature.
Cause Possible Solution
E5-11 is not set properly.
• Set the value for Δθ to E5-11 as specified on the motor nameplate.
• If the problem continues after cycling power, replace the PG option or the PG
encoder.
Noise interference along the PG
encoder cable is affecting the A
or B phase. • Make sure the motor is rotating in the proper direction.
• Investigate problems on the load-side that may be causing the motor to rotate in
the opposite direction.
PG encoder is disconnected or is
not wired properly, or the PG
option or PG encoder are
damaged. • Check PG encoder wiring and make sure all wiring including shielded wiring is
properly connected.
• If the problem continues after cycling power, replace the PG option or the PG
encoder.
Digital Operator Display Fault Name
oFA00 Non-compatible option is connected to drive port CN5-A.
Cause Possible Solution
Non-compatible option is
connected to drive port CN5-A. Use only compatible options. Connect PG-F3 to CN5-C. For other options, refer
to the Installation Manual for that option.
Digital Operator Display Fault Name
oFb00 Non-compatible option is connected to drive port CN5-B.
Cause Possible Solution
Non-compatible option is
connected to drive port CN5-B. Use only compatible options.Connect PG-F3 to CN5-C. For other options, refer to
the Installation Manual for that option.