Mitsubishi Electric Melservo-J4 MR-J4-DU*B4-RJ100 Series, Instruction Manual

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6 TROUBLESHOOTING
6.2 Troubleshooting for drive unit
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6
6.2
Troubleshooting for drive unit
[AL. 37 Parameter error] and warnings (except [AL. F0 Tough drive warning]) are not recorded in the alarm
history.
When an error occurs during operation, the corresponding alarm or warning is displayed. When an alarm or warning is
displayed, refer to "MELSERVO-J4 Servo Amplifier Instruction Manual (Troubleshooting)" to remove the failure.

MELSERVO-J4 Servo Amplifier Instruction Manual (Troubleshooting)
When an alarm occurs, ALM (Malfunction) will turn off.
Explanation for the lists
No./Name/Detail No./Detail name
Indicates the No./name/detail No./detail name of alarms or warnings.
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.
Alarm deactivation
After the cause of the alarm has been removed, the alarm can be deactivated by 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 Explanation
Alarm reset 1. Error reset command from the controller
2. Click "Occurred Alarm Reset" in the "Alarm Display" window of MR Configurator2.
CPU reset Reset the controller itself.
Power cycling Turn the power off and on again.