Servo Motor With Electromagnetic Brake - Mitsubishi Electric MELSERVO MR-J2S- A Instruction Manual

3. SIGNALS AND WIRING

3.9 Servo motor with electromagnetic brake

CAUTION
Note the following when the servo motor equipped with electromagnetic brake is used:
1) Set " 1
that this will make the zero speed signal (ZSP) unavailable.
2) Do not share the 24VDC interface 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) While the reset (RES) is on, the base circuit is shut off. When using the servo motor with a
vertical shaft, use the electromagnetic brake interlock (MBR).
5) Switch off the servo-on (SON) after the servo motor has stopped.
(1) Connection diagram
Servo amplifier
VDD
COM
MBR
(2) Setting
1) Set " 1 " in parameter No.1 to make the electromagnetic brake interlock (MBR) valid.
2) Using parameter No. 33 (electromagnetic brake sequence output), set a time delay (Tb) at servo-off
from electromagnetic brake operation to base circuit shut-off as in the timing chart shown in (3) in
this section.
Configure 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.
Contacts must be open when
servo-off, when an trouble (ALM)
and when an electromagnetic brake
interlock (MBR).
The electromagnetic brake is provided for holding purpose and must not be used
for ordinary braking.
Before performing the operation, be sure to confirm that the elecromagnetic brake
operates properly.
POINT
Refer to the Servo Motor Instruction Manual for specifications such as the
power supply capacity and operation delay time of the electromagnetic
brake.
" in parameter No.1 to make the electromagnetic brake interlock (MBR) valid. Note
24VDC
RA
Servo motor
RA
Electromagnetic brake
Emergency
RA
stop
B1
B2
3 - 54
Circuit must be
opened during
emergency stop (EMG).
EMG
24VDC
Servo motor