Справочник Пользователя для Mitsubishi Electronics MDS-R

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10. Troubleshooting 
 
 
 
 
 
10 - 17
 
Alarm No. 
88 
Watchdog: 
The system does not operate correctly. 
 
 
Cause of occurrence 
Investigation items 
Remedy 
1  Software operation is incorrect. 
Check whether the servo software 
version was changed recently. 
Try returning to the original software 
version. 
2  CPU peripheral circuit operation is 
incorrect. 
Check for abnormalities in the unit's 
surrounding environment, etc. 
(Example: Ambient temperature, noise, 
grounding) 
Improve the surrounding environment. 
3  Drive unit is faulty. 
 
Check the repeatability. 
Replace the drive unit.