Mitsubishi Electric MELSERVO-J3 Series Handbook page 223

Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_
3) When magnetic contactor drive output is disabled
When an alarm occurs, turn off the magnetic contactor using the external sequence, and shut off
the main circuit power supply.
Servo motor
speed
Drive unit
Control circuit
power supply
Resistance regeneration
converter unit
Control circuit
power supply
Main circuit
power supply
Base circuit
MBR
(Electromagnetic
brake interlock)
Servo-on command
(from servo system
controller)
Position command
(Note 3)
Note 1. When setting up an electromagnetic brake at customer's side, make up a sequence which will operate
2. Give a position command after the external electromagnetic brake is released.
3. This is in position control mode.
4. In [Pr. PC02 Electromagnetic brake sequence output], set a delay time (Tb) from MBR off to base circuit
5. The base circuit remains ready-on status at servo-off. When the status is ready-off, the base circuit and
0 r/min
ON
OFF
ON
OFF
ON
OFF
ON
OFF
(Note 1) ON
OFF
ON
OFF
0 r/min
the electromagnetic brake as follow using MBR.
ON: Electromagnetic brake is not activated.
OFF: Electromagnetic brake is activated.
shut-off at a servo-off.
the servo-on command turn off at the same time. (Tb = 0)
(3 s)
(Note 2)
5 - 28
(Note 4, 5)
Tb
(95 ms)