YASKAWA VS-656MR5

12 -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).
O
r
i
en
t
a
ti
on comp
l
e
ti
on
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