1
2
-16
Table 12.3
Motor Faults and Corrective Actions (continued)
Fault
Cause
Corrective Action
Orientation signal ORT is not input.
Confirm that orientation signal ORT is closed on operating
status display (U1-09).
Incorrect setting of selection signal
(Completion signal is not output at tuning of initial
setting.)
Set tuneup operation selection signal (C2-22 or C3-22, bit 4)
to “1.”
Orientation completion
Incorrect speed changing ratio setting
Verify the machine data for transmission ratio values (C1-27
to 29).
Orientation completion
signal is not output.
Position control proportional gain is high.
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.
Position control proportional gain is low.
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.
Fault of Orientation Card or control PCB
Replace the Orientation Card or the control PCB.
12
Troubleshooting
