Specifications

3.WIRING
3– 60
CAUTION
3-7 Servo motor with electromagnetic brake
(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.
VDD
MBR
COM
Servo amplifier
RA
Servo motor
Z
B1
B2
Emergency stopRA
24VDC
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 motor
24VDC
RA EMG
Electromagnetic
brake
Shut off by servo-on signal OFF,
alarm or electromagnetic brake signal.
Shut off by emergency stop
signal (EMG).
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.
2. The electromagnetic brake is provided for holding the motor shaft. Do not
use it for ordinary braking.