YASKAWA VS-626M5 Instruction Manual page 200

Troubleshooting
Fault
12
Orientation completion Orientation completion
signal is not output.
Table 12.3 Motor Faults and Corrective Actions (continued)
Cause
Orientation signal ORT is not input.
Incorrect setting of selection signal
(Completion signal is not output at tuning of initial
setting.)
Incorrect speed changing ratio setting
Position control proportional gain is high.
Position control proportional gain is low.
Fault of Orientation Card or control PCB
Confirm that orientation signal ORT is closed on operating
status display (U1-09).
Set tuneup operation selection signal (C2-22 or C3-22, bit 4)
to "1."
Verify the machine data for transmission ratio values (C1-27
to 29).
S Confirm that no vibration occurs in the forward and reverse
directions near the stop position.
S Lower position control proportional gain to reduce vibration.
S Confirm that the load shaft has reached the stop position on
operating status display (U2-03 or U3-03).
S Increase position control proportional gain to reach the com-
manded position.
Replace the Orientation Card or the control PCB.
12 -16
Corrective Action