Справочник Пользователя для Mitsubishi Electronics E60

I - 14 

This section describes alarms occurred by the errors in the servo system such as the drive unit‚ motor and 
encoder, etc. The alarm message‚ alarm No. and axis name will display on the alarm message screen. The 
axis where the alarm occurred and the alarm No. will also display on the servo monitor screen and the 
spindle monitor screen respectively. If several alarms have occurred‚ up to two errors per axis will display 
on the servo monitor screen and the spindle monitor screen respectively. 
(The bold characters are the messages displayed on the screen.)  

×× 0 

∆∆         

Axis name 

Alarm No. 

Alarm reset class 

Alarm class 

Servo  : Axis name 

Spindle : "S", "T" 

 

 
(Note 1)  The alarm class and alarm reset class combinations are preset. 
 

(Refer to the separate table for S02, S51 and S52.) 

 

Alarm class 

Alarm reset class 

Resetting methods 

 

 

S01 

PR 

After removing the cause of the alarm, reset the 
alarm by turning the NC power ON again. 

 

 

S03 

NR 

After removing the cause of the alarm, reset the 
alarm by inputting the NC RESET key. 

 

 

S04 

AR 

After removing the cause of the alarm, reset the 
alarm by turning the drive unit power ON again. 

 

(Note 2)  The resetting method may change according to the alarm class. 
 

For example, even if "S03 SERVO ALARM: NR" is displayed, it may be necessary to turn the NC 
power ON again. 

Alarm No. 

Name 

Meaning 

Insufficient voltage 

Insufficient PN bus voltage was detected in main circuit. 

Axis selection error 

Setting of the axis No. selection switch is incorrect. 

Memory error 1 

A CPU error or an internal memory error was detected during the 
power ON self-check. 

Software processing 
error 1 

Software processing has not finished within the specified time. 

Software processing 
error 2 

Software processing has not finished within the specified time. 

Memory error 2 

A CPU error or an internal memory error was detected during the 
power ON self-check. 

Magnetic pole 
position detection 
error 

Initial magnetic pole for motor control has not been formed yet. 

A/D converter error 

An error was detected in the A/D converter for detecting current FB.

Motor side detector: 
Initial 
communication error 

Initial communication with the motor end detector failed. 

Detector 
communication error 
in synchronous 
control 

Initial communication with the motor end detector on master axis 
failed when setting closed-loop current synchronous control.  Or the 
communication was interrupted.