YASKAWA E-S Series Product Manual page 235

Alarm Number:
Possible Cause
Alarm Name
The wiring is not cor-
rect or there is a faulty
contact in the motor or
encoder wiring.
Operation was per-
formed that exceeded
the overload protec-
tion characteristics.
A.710:
Instantaneous An excessive load was
Overload applied during opera-
A.720: tion because the Ser-
vomotor was not
Continuous
driven due to mechani-
Overload
cal problems.
A failure occurred in
the SERVOPACK.
An unsupported Servo-
motor was selected in
the parameters.
Confirmation
Check the wiring.
Check the motor overload
characteristics and Run
command.
Check the operation refer-
ence and motor speed.
−
Check the setting of
Pn08A (Motor Selection
Switch).
10.1 Alarm and Warning Displays
10.1.3 Troubleshooting Alarms
Continued from previous page.
Reference
Correction
Correction
Make sure that the Ser-
vomotor and encoder
page 4-11
are correctly wired.
Reconsider the load
and operating condi-
−
tions. Or, increase the
motor capacity.
Correct the mechanical
−
problem.
The SERVOPACK may
−
be faulty. Replace the
SERVOPACK.
Set Pn08A (Motor
−
Selection Switch) cor-
rectly.
Continued on next page.
for
10
10-9