Chapter 8 Converter Unit Troubleshooting; Outline; List Of Alarm No./Warning No; Alarm Deactivation/Warning Deactivation - Mitsubishi Electric -MR-CV User Manual

8
CONVERTER UNIT TROUBLESHOOTING
8.1

Outline

If an error occurs in the servo system, the corresponding alarm or warning is displayed on the converter unit. When an alarm
occurs, ALM (Malfunction) turns off.
If an alarm or warning is displayed, take appropriate measures according to the following:
Page 77 Handling methods for alarms/warnings
8.2

List of alarm No./warning No.

Alarm deactivation/warning deactivation

After the cause of the alarm has been removed, the alarm can be deactivated by using the methods marked with "" in the
"Alarm deactivation" column of "List". Warnings are automatically canceled when the cause is eliminated. Alarms can be
deactivated by alarm reset, CPU reset, or power cycling.

Explanation of the list

Alarm deactivation
Alarm deactivation
Alarm reset
CPU reset
Power cycling
*1 When deactivating the alarm, do so in the servo-off status. If the alarm is deactivated in the servo-on status, an alarm will occur on the
drive unit.
*2 If a protection coordination cable is not connected, the alarm cannot be deactivated by CPU reset.
Explanation
*1
1. Turn on RES (Reset).
2. For a drive unit connected with a protection coordination cable, enter the servo-on command.
*2
Reset the controller.
Cycle the power.
8 CONVERTER UNIT TROUBLESHOOTING
8
75
8.1 Outline