YASKAWA SGM7D-30F Product Manual page 199

3.3 FT82 SERVOPACK with MECHATROLINK-III Communications References
3.3.6 Troubleshooting Warnings
Note: 1. A warning code is not output unless you set Pn001 to n.1 (Output both alarm codes and warning
2. Use Pn008 = n.X (Warning Detection Selection) to control warning detection.
3.3.6 Troubleshooting Warnings
The causes of and corrections for the warnings are given in the following table. Contact your
Yaskawa representative if you cannot solve a problem with the correction given in the table.
Warning Number:
Warning Name
A.900:
Position Deviation
Overflow
3-130
codes).
However, the following warnings are not affected by the setting of Pn008 = n.X and other parameter
settings are required in addition to Pn008 = n.X.
Warning
A.911 Pn310 = n.X (Vibration Detection Setting)
–
A.923
(Not affected by the setting of Pn008 = n.X.)
A.930 Pn008 = n.X (Low Battery Voltage Alarm/Warning Selection)
Pn423 = n.X (Speed Ripple Compensation Information Disagreement Warning
A.942
Detection Selection)
A.94A to A.960 and
Pn800=n.X (Warning Check Masks)
A.97A to A.97b
Pn008 = n.X (Low Battery Voltage Alarm/Warning Selection)
A.971
(Not affected by the setting of Pn008 = n.X.)
Pn00D = n.X (Overtravel Warning Detection Selection)
A.9A0
(Not affected by the setting of Pn008 = n.X.)
A.9b0 Pn00F = n.X (Preventative Maintenance Selection)
Possible Cause
The Servomotor
U, V, and W wiring
is not correct.
A SERVOPACK
gain is too low.
The acceleration
of the position ref-
erence is too high.
The excessive
position deviation
alarm level (Pn520
× Pn51E/100) is
too low for the
operating condi-
tions.
A failure occurred
in the SERVO-
PACK.
Parameters That Must Be Set to Select Warning Detection
Confirmation
Make sure that there are no
Check the wiring of the
faulty connections in the
Servomotor's Main Cir-
wiring for the Servomotor
cuit Cables.
and encoder.
Increase the servo gain,
Check the SERVO-
e.g., by using autotuning
PACK gains.
without a host reference.
Reduce the acceleration of
the position reference using
a MECHATROLINK com-
Reduce the reference
mand. Or, smooth the posi-
acceleration and try
tion reference acceleration
operating the SERVO-
by selecting the position
PACK.
reference filter (ACCFIL)
using a MECHATROLINK
command.
Check excessive posi-
tion deviation alarm
Optimize the settings of
level (Pn520 × Pn51E/
Pn520 and Pn51E.
100) to see if it is set to
an appropriate value.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Correction Reference
–
*
–
*
–
Continued on next page.