Справочник Пользователя для Mitsubishi Electronics MDS-R

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10. Troubleshooting 
 
 
 
 
 
10 - 18
10-4-2  Warning 
 
Warning No. 
93 
Initial absolute position fluctuation: 
The position data have fluctuated during the absolute position initializing. 
 
 
Cause of occurrence 
Investigation items 
Remedy 
1  The vertical axis or slant axis dropped 
when the NC power was turned ON. 
2  The axis moved with an external force 
when the NC power was turned ON. 
Check the state of the axis at NC power 
ON. 
Correct the faulty sections. 
 
Warning No. 
9E 
Absolute position detector: Revolution counter error: 
An error was detected in the revolution counter of the absolute position detector.  The absolute position 
data cannot be compensated.
 
 
Cause of occurrence 
Investigation items 
Remedy 
1  Detector internal circuit operation is 
incorrect. 
Check for abnormalities in the detector's 
surrounding environment, etc.   
(Example: Ambient temperature, noise, 
grounding) 
Improve the surrounding environment. 
2  Detector is faulty. 
 
Check the repeatability. 
Replace the detector. 
 
Warning No. 
9F 
Battery voltage drop: 
The battery voltage that is supplied to the absolute position detector dropped.  The absolute position data 
is retained. 
 
Cause of occurrence 
Investigation items 
Remedy 
1  Battery is spent. 
Measure the battery voltage.   
(Warning 9F occurs at 3V or less.) 
Replace the battery. 
2  The cable between the drive unit or 
battery unit is disconnected. 
Check the cable connection. 
Correctly connect. 
3  The battery connector (inside drive unit) 
is dislocated. 
Check the cable connection. 
Correctly connect. 
4  Battery line in detector cable is broken. 
Check the continuity of the detector 
cable. 
Replace the cable. 
(Note)  When warning 9F occurs, do not turn OFF the drive power to ensure that the absolute position data is held. 
 
Warning No. 
A6 
Fan stop warning: 
A cooling fan built in the drive unit stopped. 
 
 
Cause of occurrence 
Investigation items 
Remedy 
1  Carry out items for alarm No. 45. 
 
 
Warning No. 
E0 
Over regeneration warning: 
Over-regeneration detection level exceeded 80%. 
 
 
Cause of occurrence 
Investigation items 
Remedy 
1  Carry out items for alarm No. 30. 
 
 
Warning No. 
E1 
Overload warning: 
Overload detection level exceeded 80%. 
 
 
Cause of occurrence 
Investigation items 
Remedy 
1  Carry out items for alarm No. 50.