Leadshine EL8-EC Series User Manual page 149

Dynamic braking method. Status after stopping: Free running
Servo enabled
SRV-ON
Dynamic
brake
Servo status
SRV-ST
Motor power
Holding brake status
BRK
Motor
rotation
** 1. Status after stopping is as defined in Pr5.06.
2. SRV-ST signal is received when servo driver is enabled. Command input is not allowed yet.
3. Servo stopping method is as defined in Pr5.06; braking torque in opposite direction to decelerate
the motor is as defined in Pr5.11. Deceleration time t is determined by whichever comes first between
time set in Pr6.14 and time needed for motor to drop below velocity set in Pr4.39. After deceleration time t,
dynamic braking will be off and holding brake signal will be set to OFF (Holding brake is activated.
Although BRK-OFF signal is valid, actual activation of holding brake is dependent on whether the motor
comes with holding brake).
4. BRK-ON signal doesn't indicate the activation of holding brake but the validation of the signal.
Holding brake is not applied when BRK-ON signal is valid. Same idea goes for BRK-OFF signal.
Input coupler
OFF
Activated
Disabled
*2
Power OFF
Brake ON
BRK-OFF
User manual of EL8-EC***F AC Servo
Input coupler
ON
Activated
Deactivated
Enabled
Power ON
Brake OFF
BRK-ON
*3
Input coupler
OFF
Deactivated
*1
Disabled
Power OFF
Brake ON
BRK-OFF
t
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