Mitsumi electronic IB-1500875(ENG)-E ユーザーズマニュアル

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With this function, the contactor ON/OFF command is output from the power supply unit (or servo/spindle 

drive unit for integrated type) based on the judgement as to whether it is in emergency stop, emergency stop 

cancel, spindle deceleration and stop or vertical axis drop prevention control, etc.

With this function, the brake ON/OFF command is output from the servo drive unit based on the judgement 

as to whether it is in emergency stop, emergency stop cancel or vertical axis drop prevention/pull-up control, 

etc.

When a multiaxis drive unit is connected, all the axes are simultaneously controlled.

Besides the emergency stop input from the NC, double-protection when an emergency stop occurs can be 

provided by directly inputting an external emergency stop, which is a second emergency stop input, to the 

power supply unit (servo/spindle drive unit for integrated type).

Even if the emergency stop is not input from NC for some reason, the contactors will be activated by the 

external emergency stop input, and the power can be shut off.

This function is to output a signal that indicates whether the machine-end speed has exceeded the speed 

specified with the parameter.

With this function, the protection door, etc. can be locked to secure the machine operator when the machine-

end speed has exceeded the specified speed. This function can also be used for judging whether the current 

machine-end speed is higher than the specified speed.

With this function, the charging time during READY ON is shortened according to the remaining charge 

capacity of the power supply unit. When returning to READY ON status immediately after the emergency 

stop input, the charging time can be shortened according to the remaining charge capacity and the time to 

READY ON is shortened.

CN1A 

CN4 

MDS-D/DH-CV 

CN4 

3  EMG2 
2 

(NC) 

1  EMG1 

CN23B 

CN23A 

OPT1 

3 

MC2 

2 

(NC) 

1 

MC1 

EMG 

MDS-D/DH-V1/V2/SP/SP2

SH21 cable 

(24VDC) 

External emergency   
stop switch

 

External emergency stop input 

Mitsubishi NC 

G391 cable 

Alarm 

Emergency 

stop 

Optical 

communication 

Emergency 

stop

 

Alarm 

Contactor shutoff 
command