− App.
56
−
PrNo.
Parameter Range
Function
description
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 motor in motion, not
during the halt as handled by Pr6A.
See also "Timing chart for Serve-ON/OFF during the operation of
the motor" in Appendix.
Defines whether the internal regenerative discharge resistor is
used, or an external regenerative discharge resistor is installed
(between P and B2 terminals on the terminal block) with the inter-
nal resistor disconnected.
6B
6C
Mechanical
brake action
set-up
at motor in
motion
External
regenerative
discharge
resistor
selection
0 〜
100
【0】
0 〜 2
【0】
Details of Parameters
Value
0
1
2
Regenerative discharge resistor
Internal resistor
External resistor
External resistor
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
・ 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 ,
whichever is
smaller.
・Pr6B = (Entry) x 2 ms
T
B
On
SRV-ON
BRK-OFF
Motor velocity
(r/min)
Brake
released
Off
Brake
engaged
Motor
current
Energized
Free
(not energized)
30 r/min
Approy.
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