Mitsubishi Electric MELSERVO-J2S Series Transition Handbook page 179

Part 5: Review on Replacement of MR-J2S-30 kW or Higher Capacity Models with MR-J4-DU_
2) When the magnetic contactor driving output is enabled and the ready-on is turned off
Turning off the ready-on switches off the magnetic contactor of the convertor unit and shuts off
the main circuit power supply.
Servo motor
speed
Drive unit
control circuit
power supply
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 the
electromagnetic brake as follow using MBR (Electromagnetic brake interlock).
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.
0 r/min
ON
OFF
ON
OFF
ON
OFF
(3 s)
ON
OFF
(Note 1) ON
OFF
ON
OFF
0 r/min
(Note 2)
5 - 18
(3 s)