59 
The sequence diagram is as follows: 
/ S-ON input or 
alarm power off
Motor rotation 
speed (Rpm)
/BK output
P5-08
Deceleration 
stop or free  
stop
Servo 
ON
Servo 
OFF
Brake locked
Brake 
release
P5-09
/ S-ON input or 
alarm power off
Motor rotation 
speed (Rpm)
/BK output
P5-08
Deceleration 
stop or free  
stop
Servo 
ON
Servo 
OFF
Brake locked
Brake 
release
P5-09
 
 
Since the brake of the servo motor is designed for position holding, it must be enabled at the right time 
when the motor stops. While observing the action of the machine, adjust the user parameters. 
 
 
5.2.6 Braking setting 
When the servo motor is driven by the generator mode, the power returns to the servo amplifier 
side, which is called regenerative power. Regenerative power is absorbed by charging the smoothing 
capacitor in the servo amplifier. After exceeding the rechargeable energy, the regenerative resistance is 
used to consume the regenerative power. 
The servo motor is driven by regeneration (generator) mode as follows: 
  Deceleration stop period during acceleration and deceleration operation; 
  When the vertical axis is running downward; 
  When the external load drives the motor to rotate. 
  Related parameter 
Discharge resistance type 
selection (version 3640 and 
before) 
0: built-in 
1: external 
Power protection mode of 
discharge resistance 
(version 3700 and later) 
0 - cumulative discharge 
time 
1 - average power mode 1 
2 - average power mode 2 
Power value of discharge 
resistance 
Discharge resistance value