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5. TROUBLESHOOTING
5. TROUBLESHOOTING
When an error occurs during operation, the corresponding alarm or warning is displayed. If any alarm or
warning occurs, refer to section 5.4 and 5.5 in this manual, and "MR-J4 Servo Amplifier Instruction Manual
(Troubleshooting)" to take appropriate action.
When an alarm occurs, ALM (Malfunction) will turn off.
5.1 Explanations of the lists
(1) No./Name/Detail No./Detail name
Indicates the alarm or warning No., name, detail No., and detail name.
(2) Stop method
For the alarms and warnings in which "SD" is written in the stop method column, the servo motor stops
with the dynamic brake after forced stop deceleration. For the alarms and warnings in which "DB" or
"EDB" is written in the stop method column, the servo motor stops with the dynamic brake without forced
stop deceleration.
(3) Alarm deactivation
After the alarm cause has been removed, the alarm can be deactivated in any of the methods marked ○
in the alarm deactivation column. Warnings are automatically canceled after the cause of occurrence is
removed. Alarms are deactivated by alarm reset, CPU reset, or power cycling.
Alarm deactivation
Alarm reset
CPU reset
Cycling the power
POINT
This chapter explains the details of alarms and warnings exclusively for the MR-
J4-(DU)_B_-LL. Refer to "MELSERVO-J4 Servo Amplifier Instruction Manual
(Troubleshooting)" for other alarms and warnings.
As soon as an alarm occurs, make the Servo-off status and interrupt the main
circuit power.
[AL. 37 Parameter error] and warnings (except [AL. F0 Tough drive warning])
are not recorded in the alarm history.
1. Error reset command from the controller
2. Click the "Occurred Alarm Reset" in the "Alarm Display" window of MR
Configurator2.
Reset the controller itself.
Turn the power off and on again.
Explanation
5 - 1
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