M2DC Series Hardware Manual
38
Rev. 1.1
2018/04
400-820-9661
4.5 Electromagnetic Brake
When the motor drives the vertical axis, a brake should be used to hold and prevent the load from falling
by gravity when the power is removed.
NOTE: Use only a servo motor brake for holding a load when the motor is disabled or the power is
off. Never use a servo motor brake to stop a load in motion. This may cause damage to the servo
motor.
4.5.1 Wiring Diagram
24VDC
24VDC
Relay
Brake+
Brake-
R
Servo Drive
Relay
Brake
4.5.2 Brake Motor
● When no power is applied to the electromagnetic brake, it is in a locked position. Therefore, the motor
shaft will not be able to rotate.
●
The brake coil has no polarity.
● During the brake/release action, you might hear a clicking sound. This is normal and does not affect the
use of brake.
● Specifications of the brakes are as follows:
Motor Power
Type
60W
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 voltage18.5VDC
4.5.3 Timing Charts of the Electromagnetic Brake
In order to prevent damage to the brake, there are delay sequences during the brake operation. Please
be cautious with brake operation sequence.
Servo on Input
OFF
ON
Motor Active
Disable
Enable
Brake Action
OFF
ON
Brake Signal
OFF
ON
Motion Command
OFF
ON
Actual Motion
OFF
ON
Brake Release Delay
P-69 Setting
Brake Engage Delay
P-70Setting
Brake engage/disengage delay time can be set through M Servo Suite software, or on the drive directly
through the P function: P-69 (BD) or P-70 (BE).
