M Series AC Servo
User Manual
36
Rev. 1.0
7/31/2019
400-820-9661
4.4 Electromagnetic Brake
When motor drives the vertical axis, brake should be used to hold and prevent the work (moving load)
from falling by gravity while the power to servo is shut off.
NOTE: only use servo motor brake for holding the stalling status, i.e. motor is in disable or power
off.
Never use this for
“
brake
”
purpose to stop the load in motion. Wrong use might cause servo motor
damages.
4.4.1 Wiring Diagram
24VDC 24VDC
Relay
Brake+
Brake-
R
Servo Drive
Relay
Brake
4.4.2 Notice for the Brake Motor
When no power is applied to the electromagnetic brake, it is in locked position. Therefore, the motor shaft
will not be able to rotate.
The brake coil has no polarity.
During the brake/release action, there might be
“
Ka-Da
”
sounds occurring, this does not affect the use
of brake.
Specification of brakes are as follows:
Motor Power
Type
50W 100W 200W 400W 750W
Holding Torque (N•m)
0.35 2 4.5
Working Current (A)
0.25 0.38 0.61
Rated Voltage (V)
24V
±
10%
Release Time
<25ms
Engage Time
<25ms
Release Voltage (V) Release Voltage 18.5VDC
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