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IS810N-INT Series Servo System User Manual (Brief)Chapter 4 Wiring
Caution
Use this built-in brake to keep the stalling status only. Never use this for "Brake" to stop the 
load in motion.
Brake coils are of no polarity.
Turn off S-ON after the servo motor stops.
When the servo motor with a brake runs, the brake may generate a click sound, which does 
not affect its functions.
When brake coils are energized (the brake is released), magnetic ux leakage may occur at 
the shaft end. Thus, pay special attention when using magnetic sensors around the servo 
motor.
The connector of the motor brake has no polarity. Users need to prepare a 24 V external 
power supply. The following gure shows the standard wiring of the brake signal (BK) and 
brake power supply.
Figure 4-17 Wiring for a motor brake
Pay attention to the following precautions during wiring:
To decide the length of the cable on the motor brake side, consider voltage drop caused by 
cable resistance. The input voltage of the brake must be at least 21.6 V.
Servo drive
Motor
Encoder
Brake
(Cusomter’s input brake power 
supply)
24 VDC, refer to actual brake 
current requirements
Encoder 
signal 
interface