User Manual of iSV2-CAN Servo
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90
actually activated.
Pr4.38
Name
Mechanical brake action at running
setup
Mode
F
Range
0~10000
Unit
1ms
Default
0
Index
2438h
Mechanical brake start delay time setup, mainly used to prevent servo off “galloping “phenomenon.
Set up time from when detecting the off of servo-on input signal(SRV-ON)is to when external brake
release signal(BRK-OFF)turns off, while the motor turns to servo off during the motor in motion.
⚫
Set up to prevent the brake deterioration due to the motor running.
⚫
At servo-OFF during the motor is running , tb of the right
fig will be a shorter one of either Pr4.38 setup time, or time
lapse till the motor speed falls below Pr4.39 setup speed.
Pr4.39
Name
Brake release speed setup
Mode
F
Range
30~3000
Unit
1ms
Default
30
Index
2439h
Set up the speed timing of brake output checking during operation .
SRV_ON
BRK_OFF
Motor
power-on
Brake
action
Velocity
Brake
Release
Brake
*1
*2
*3
*3
*4
Pr4.39
*5
Notice
：
*1
：
The delay time between SRV_ON and BRK_OFF is less than 500ms;
*2
：
Time setting in Pr4.38;
*3
：
The delay time between the BRK_OFF signal output and the actual brake release action, which depends on
the hardware characteristics of the motor brake;
*4
：
The smaller value of Pr4.37 and Pr4.39;
