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Details of Parameters
PrNo. Parameter Range
description
6B
Mechanical
brake action
set-up
at motor in
motion
・ This parameter is necessary for avoiding
the degradation of the brake due to the
rotation of the motor.
・The value of Tb is the value of Pr6B or the
time needed for decreasing the motor revo-
lution to about 30 rpm ,
smaller.
・Pr6B = (Entry) x 2 ms
6C
External
regenerative
discharge
resistor
selection
Value
0
1
2
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0 〜
Defines the duration from OFF of the brake release signal (BRK-
OFF) (i.e. brake engaged) to the shutdown of motor current (servo
100
free) in transition to Servo-OFF during the motor in motion, not
【0】
during the halt as handled by Pr6A.
whichever is
See also "Timing chart for Serve-ON/OFF during the operation of
the motor" in Appendix.
Defines whether the internal regenerative discharge resistor is
0 〜 2
used, or an external regenerative discharge resistor is installed
【0】
(between P and B2 terminals on the terminal block) with the inter-
nal resistor disconnected.
Regenerative discharge resistor
Internal resistor
External resistor
External resistor
− App. 56 −
Function
SRV-ON
On
Brake
BRK-OFF
released
Motor
current Energized
Motor velocity
(r/min)
Over-regenerative power protection
The protection operates for the internal resistor.
The protection operates for the external resistor
whose operating limit is 10% of the duty.
No protection
Off
Brake
engaged
T
B
Free
(not energized)
Approy.
30 r/min
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