40
ELD2-RS70** User Manual
Pr4.37
Mechanical brake action at stalling
setup
Range
unit default
Related
control mode
0 -10000
1ms
0
P
S T
Motor brake delay time setup, mainly used to prevent servo on “galloping “phenomenon.
Set up the time from when the brake release signal(BRK-OFF) turns off to when the motor is
de-energized (servo-free),when the motor turns to servo-off while the motor is at stall
⚫
Set up to prevent a micro-travel/drop of the motor
(work) due to the action delay time(tb) of the brake.
⚫
After setting up Pr4.37>=tb, then compose the
sequence so as the driver turns to servo-off after the
brake is actually activated.
Pr4.38
Mechanical brake action at running
setup
Range
unit
default
Related
control mode
0 -10000
1ms
0
P
S T
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
Brake release speed setup
Range
unit
default
Related
control mode
30 -3000
1ms
30
P
S T
When servo off, rotate speed less than this setup vale, and mechanical brake start delay time arrive,
motor lost power.
