Mitsubishi Electric MELSERVO-J4 MR-J4 TM Instruction Manual page 101

3. SIGNALS AND WIRING
(e) Main circuit power supply off during control circuit power supply on
(f) Ready-off command from controller
POINT
In the torque mode, the forced stop deceleration function is not available.
Servo motor speed
Main circuit
power supply
Base circuit
(Energy supply to
the servo motor)
MBR
(Electromagnetic
(Note 1)
brake interlock)
ALM (Malfunction)
Note 1. ON: Electromagnetic brake is not activated.
OFF: Electromagnetic brake is activated.
2. Variable according to the operation status.
Servo motor speed
Base circuit
MBR
(Electromagnetic
(Note)
brake interlock)
Ready-on command
(from controller)
Note. ON: Electromagnetic brake is not activated.
OFF: Electromagnetic brake is activated.
Forced stop deceleration
The time until a voltage
drop is detected.
0 r/min
ON
(Note 2)
OFF
ON
OFF
ON
OFF
ON (no alarm)
OFF (alarm)
Approx. 10 ms
0 r/min
ON
OFF
ON
OFF
ON
OFF
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Dynamic brake
Dynamic brake
+ Electromagnetic brake
Electromagnetic brake
Approx. 10 ms
Operation delay time of
the electromagnetic brake
Dynamic brake
Dynamic brake
+ Electromagnetic brake
Electromagnetic brake
Operation delay time of
the electromagnetic brake