Справочник Пользователя для Mitsubishi Electronics MDS-R

 
 
 

 

 

10 - 16

 

A difference between the actual and theoretical motor positions during servo OFF exceeded the setting 

value. 

 

1  The axis moved during servo OFF. 

 

Check the motor brake operation. 

Correctly and faulty sections. 

2  The NC stopped the follow-up function 

during servo OFF. 

Check the NC parameters. 

Set the NC parameters according to the 
machine specifications. 

Check the OD1 (SV026) setting value. 

RAPID

3  The excessive error detection width is 

too small. 

Is OD2=

60×PGN1

/ 2 satisfied? 

Set the standard value according to the 
rapid traverse rate and position loop gain.

 

 

 

 

If the actual machine position is separated by the distance set with OD1 from the ideal machine position in 
respect to the commanded position, the position will be within the shaded sections shown below. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

There is no contactor shutoff command, even after 30 seconds has passed since the external emergency 

stop was input.

 

 

1  An error occurred during main 

emergency stop. 

Check the emergency stop input and 
sequence program. 

Improve the emergency stop sequence.

2  Parameters are incorrectly set. 

Check the PTYP (SV036) external 
emergency stop setting. 

Set correctly. 

 

A contact of the external contactor is welding.  Or the contactor fails to be ON during ready ON. 

 

 

1  The contactor turned ON during READY 

OFF. 

Check whether the contactor contact is 
melted. 

Replace the contactor. 

2  The contactor turned OFF during ready 

ON. 

Check whether the contactor control 
output connector (CN9) is disconnected.

Correctly connect. 

 

Servo OFF 

Servo ON 

Time

 

OD2 

OD2 

Ideal machine position 

Commanded position

OD1

OD1

Position