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10. TROUBLESHOOTING
Display Name
Warnings
A90 Home positioning incomplete warning
A92 Open battery cable warning
A96 Home position setting error
A98 Software limit warning
A99 Stoke limit warning
A9A Option unit input data error warning
A9F Battery warning
AE0 Excessive regeneration warning
AE1 Overload warning 1
AE3 Absolute position counter warning
AE6 Servo forced stop warning
AE8 Cooling fan speed reduction warning
AE9 Main circuit off warning
AEC Overload warning 2
AED Output watt excess warning
10.2.2 Remedies for alarms
CAUTION
When any alarm has occurred, eliminate its cause, ensure safety, then reset the
alarm, and restart operation. Otherwise, injury may occur.
If an absolute position erase (A25) occurred, always make home position setting
again. Not doing so may cause unexpected operation.
As soon as an alarm occurs, turn off Servo-on (SON) and power off.
POINT
When any of the following alarms has occurred, do not deactivate the alarm
and resume operation repeatedly. To do so will cause the servo amplifier/servo
motor to fail. Remove the cause of occurrence, and leave a cooling time of
more than 30 minutes before resuming operation.
Regenerative error (A30)
Overload 1 (A50)
Overload 2 (A51)
For the alarm deactivation method, refer to section 10.2.1.
When an alarm occurs, the trouble (ALM) switches off and the dynamic brake is operated to stop the servo
motor. At this time, the display indicates the alarm No.
The servo motor comes to a stop. Remove the cause of the alarm in accordance with this section. Use the MR
Configurator to refer to a factor of alarm occurrence.