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- App.36 -
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PrNo.
Parameter
Range Function
description
Defines the duration from the shutdown of motor current (servo
free) to OFF (i.e. brake energized) of the brake release signal (BRK-
OFF) in transition to Servo-OFF during the motor in motion, not
during the halt as handled by Pr6A.
6B
Mechanical
brake action
set-up
at motor in
motion
0 ~
100
[ 0 ]
Details of Parameters
• This parameter is necessary for avoiding the
degradation of the brake due to the rotation of the
motor.
•
The value of T
B
is the value of Pr6B or
the time needed for decreasing the motor
speed to about 30 r/min , whichever is smaller.
• Pr6B = (Entry) x 2 ms
• See also "Timing chart for Servo-ON/OFF during
the halt of motor" in Appendix 13.
T
B
On
SRV-ON
BRK-OFF
Motor velocity
(r/min)
Brake
released
Off
Brake
engaged
Motor
current
Energized
Not energized
30 r/min
Approx.
Pr6AÇÃê›íËÅÜtb
• The value of this parameter should not be less than
the value of tb (delay of braking) in order to avoid
the minute movement or fall of the motor (work).
• Pr6A = (Entry) x 2 ms
• See also "Timing chart for Servo-ON/OFF during
the halt of motor" in Appendix 12.
On
SRV-ON
BRK-OFF
Actual
braking
Motor
current
Brake
released
Brake
released
Off
Brake
engaged
Brake
engaged
Energized
Not energized
Pr6A
tb
Defines the duration from OFF of the brake release signal (BRK-
OFF) (i.e. brake engaged) to the shutdown of motor current (servo
free) in transition to Servo-OFF during the halt of the motor.
6A
Mechanical
Brake action
set-up at
motor standstill
0 ~
100
[ 0 ]