Leadshine EL8-EC Series User Manual page 103

SRV_ON
BRK_OFF
Motor Power
Actual holding
brake status
Motor
Velocity
*1: Delay time set in Pr4.38
*2: Delay time from the moment BRK_OFF signal is given until actual holding brake is
released or BRK_ON signal is given until actual holding brake is activated. It is
dependent on the holding brake of the motor.
*3: Deceleration time is determined by Pr6.14 or if motor speed goes below Pr4.39,
whichever comes first. BRK_OFF given after deceleration time.
*4: Pr4.37 set time value.
Delay time from the moment SRV_ON is given until BRK_OFF switch to BRK_ON, is
less than 500ms.
Label
Range
Pr4.39
Activation
To set the activation speed for which holding brake will be activated.
When SRV-OFF signal is given, motor decelerates, after it reaches below Pr4.39 and Pr6.14 is not
yet reached, BRK_OFF is given.
BRK_OFF signal is determined by Pr6.14 or if motor speed goes below Pr4.39, whichever comes
first.
Application:
1. After disabling axis, Pr6.14 has been reached but motor speed is still above Pr4.39, BRK_OFF signal
given.
2. After disabling axis, Pr6.14 has not been reached but motor speed is below Pr4.39, BRK_OFF signal
given.
ON
OFF
Brake released
(BRK_ON)
Brake
ON
*1
On
off
*2
Released
Braked
Holding brake activation speed
30~3000 Unit
Immediate
User manual of EL8-EC***F AC Servo
Off
*4
*2
Braked
*3
t
Mode
RPM Default 30 Index 2439h
103
F