− App.
9
−
Appendixes
Holding brake
The brake is to hold the work (movable part coupled to a vertical motor axis) to
prevent it from falling by gravity in case the servo power is lost.
< Notes and Cautions >
1. The brake coil has no polarities.
2. The power supply for the brake should by supplied by the customer. Do not
use the control power (VDC) for driving the brake.
3. Install a surge absorber per the figure above in order to suppress the surge
voltage due to the on/off operation of the relay (RY). If you use a diode for
surge absorber, note that the start of the servo motor after releasing the
brake is delayed.
4. Use the recommended surge absorber. See Recommended Parts in page 84.
Driver
Surge absorber
Motor
Brake coil
BRK-OFF+
11
10
41
RY
BRK-OFF-
V
DC
RY
12~24V
Power for brake, 24VDC
DC24V
COM-
CN /
F
I
Wiring (Example)
This circuit shows a function of controlling the brake using the brake release
signal (BRK-OFF) from the driver.
< Caution >
The holding brake is to hold the work, not stop its
motion. Never use the brake for decelerating and
stopping the machine.
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