Explanation For The Lists - Mitsubishi Electric MR-J4W2 Instruction Manual

8. TROUBLESHOOTING
8. TROUBLESHOOTING
When an error occurs during operation, the corresponding alarm or warning is displayed. If an alarm is
displayed, refer to "MELSERVO-J4 Servo Amplifier Instruction Manual (Troubleshooting)" to remove the
failure. When an alarm occurs, ALM (Malfunction) will turn off.

8.1 Explanation for the lists

(1) No./Name/Detail No./Detail name
Indicates each No./Name/Detail No./Detail name of alarms or warnings.
(2) Processing system
Processing system of alarms is as follows.
Each axis: Alarm is detected for each axis.
Common: Alarm is detected as the whole servo amplifier.
(3) Stop system
This means target axis to stop when the alarm occurs.
Each axis: Only alarming axis will stop.
All axes: All axes will stop.
(4) 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.
(5) Alarm deactivation
After its 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 with alarm reset, CPU reset, or cycling the power.
Alarm deactivation
Alarm reset
CPU reset
Cycling the power
POINT
Refer to "MELSERVO-J4 Servo Amplifier Instruction Manual (Troubleshooting)"
for details of alarms and warnings.
If an alarm which indicates each axis in the stop method column occurs, the axis
without the alarm operates the servo motor as per normal.
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 controller
2. Pushing the "Occurring Alarm Reset" button in the "Alarm Display" window of MR
Configurator2
Resetting the controller itself
Turning off the power and on again
Explanation
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