Mitsubishi Electric Melservo MR-J3-100B, Handbook

Page: 223 / 590

Part 5: Review on Replacement of MR-J3-DU_ with MR-J4-DU_
5 - 28
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.
ON
OFF
Main circuit
power supply
ON
OFF
Servo-on command
(from servo system
controller)
(95 ms)
ON
OFF
Base circuit
(3 s)
(Note 4, 5)
Tb
ON
OFF
ON
OFF
Drive unit
Control circuit
power supply
(Note 1) ON
OFF
MBR
(Electromagnetic
brake interlock)
0 r/min
Servo motor
speed
0 r/min
Position command
(Note 3)
(Note 2)
Resistance regeneration
converter unit
Control circuit
power supply
Note 1. When setting up an electromagnetic brake at customer's side, make up a sequence which will operate
the electromagnetic brake as follow using MBR.
ON: Electromagnetic brake is not activated.
OFF: Electromagnetic brake is activated.
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
shut-off at a servo-off.
5. The base circuit remains ready-on status at servo-off. When the status is ready-off, the base circuit and
the servo-on command turn off at the same time. (Tb = 0)