Mitsubishi Electronics MDS-R ユーザーズマニュアル

 
 
 

 

 

10 - 6

When a warning occurs, a warning No. will appear on the NC monitor screen and with the LEDs on the 
front of the drive unit. Check the warning No., and remove the cause of the warning by following this 
section.

 

93  Initial absolute position 

fluctuation 

The position data have fluctuated during the absolute position 
initializing. 

Does not stop 

PR 

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. 

Does not stop 

* 

9F  Battery voltage drop 

The battery voltage that is supplied to the absolute position 
detector dropped.  The absolute position data is retained. 

Does not stop 

* 

A6  Fan stop warning 

A cooling fan built in the drive unit stopped. 

Does not stop 

* 

E0  Over regeneration warning 

Over-regeneration detection level exceeded 80%. 

Does not stop 

* 

E1  Overload warning 

Overload detection level exceeded 80%. 

Does not stop 

* 

E4  Set parameter warning 

A parameter setting was outside the setting range. 

Does not stop 

* 

E6  Control axis detachment 

warning 

Control axis detachment was commanded. 

- 

* 

E7  In NC emergency stop state 

Emergency stop was input from the CNC. 

Deceleration control

* 

E9 Instantaneous power 

interruption warning 

The power was momentarily interrupted. 

Does not stop 

NR 

EA  In external emergency stop 

state 

External emergency stop signal was input. 

Deceleration control

* 

 
 

  Resetting method    * 

: If the state causing the warning is canceled, the warning will be reset 

automatically. 

 

 

NR 

: The warning can be reset with the NC reset button. The warning can also 

be reset with the PR and AR resetting conditions. 

 

 

PR 

: The warning can be reset by turning the NC power OFF and ON. The 

warning can also be reset with the AR resetting conditions. 
If the control axis is removed, the warning can be reset with the NC reset 
button. (Excluding warning 93.) 

 

 

AR 

: The alarm can be reset by turning the servo drive unit's power OFF and 

ON.