Mitsubishi Electric MELSERVO-J2 Series Instruction Manual page 61

3. SIGNALS AND WIRING
(3) Forced stop
CAUTION
Forced stop (EMG) can be used by making device setting on the Servo Configuration Software.
Make up a circuit which shuts off main circuit power as soon as EMG-SG are opened at a forced stop.
To ensure safety, always install an external forced stop switch across EMG-SG. By disconnecting
EMG-SG, the dynamic brake is operated to bring the servo motor to a sudden stop. At this time, the
display shows the servo forced stop warning (A. E6).
During ordinary operation, do not use the external forced stop (EMG) to alternate stop and run. The
servo amplifier life may be shortened. Also, if the forward rotation start (ST1) or reverse rotation start
(ST2) is on during a forced stop, the servo motor will rotate as soon as the warning is reset. During a
forced stop, always shut off the run command.
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Provide an external forced stop circuit to ensure that operation can be stopped and
power switched off immediately.
Servo amplifier
VDD
COM
EMG
SG
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