Mitsubishi Electric MELSEC iQ-R RD78G4 User Manual page 24

It is also possible to use the forced stop signal of the drive unit. Operation status of the emergency stop, drive unit forced stop
and the Motion controller forced stop are as follows.
Item Operation when the
signal is turned on
Emergency stop Servo OFF
Drive unit forced
stop
Motion controller
forced stop
Shut-off the main circuit power supply of a drive unit when an emergency stop, alarm, servo amplifier forced stop, or remote
input module forced stop occurs. Make sure to use molded-case circuit breakers (MCCB) for input wires of a drive unit power
supply. For details, refer to the drive unit manual.
2 SPECIFICATIONS
22
2.3 External Circuit Design
Remarks
The power supply of the drive unit is shut off by external circuit, and the servomotor stops.
A stop command from the external circuit to the drive unit is output, and the drive unit stops the servomotor.
A stop command from the remote input module to the drive unit is output, and the drive unit stops the
servomotor.