Servo Motor With Electromagnetic Brake - Mitsubishi Electric MELSERVO MR-J2-A Product Specifications And Installation Manual

3.WIRING

3-7 Servo motor with electromagnetic brake

CAUTION
Note the following when the servo motor equipped with electromagnetic brake is used for applica-
tions requiring a brake to hold the motor shaft (vertical lift applications):
1) Set 1 in parameter No. 1 to make the electromagnetic brake interlock signal (MBR)
valid. Note that this will make the zero speed signal (ZSP) unavailable.
2) Do not share the 24VDC power supply between the interface and electromagnetic brake.
Always use the power supply designed exclusively for the electromagnetic brake.
3) The brake will operate when the power (24VDC) switches off.
4) Turn off the servo on signal after the servo motor has stopped.
(1) Connection diagram
Servo amplifier
VDD
COM
MBR
(2) Setting procedure
1) Set 1 in parameter No. 1 to make the electromagnetic brake interlock signal (MBR)
valid.
2) Using parameter No. 33 (electromagnetic brake sequence output), set a time delay from
electromagnetic brake operation to base circuit shut-off as in the timing chart shown in (3) in
this section.
1. Make up the electromagnetic brake operation circuit so that it is activated
not only by the servo amplifier signals but also by an external emergency
stop signal.
Shut off by servo-on signal OFF,
alarm or electromagnetic brake signal.
2. The electromagnetic brake is provided for holding the motor shaft. Do not
use it for ordinary braking.
RA
Servo motor
Electromagnetic
brake
RA Emergency stop
B1
Z
24VDC B2
3– 60
Shut off by emergency stop
signal (EMG).
RA EMG
24VDC
Servo motor