Panasonic minas a series Operating Manual page 137

Details of Parameters
PrNo. P a r a m e t e r R a n g e
d e s c r i p t i o n
6 B
Mechanical
brake action
s e t - u p
at motor in
m o t i o n
• This parameter is necessary for avoiding the degra-
dation 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 revolution to about
30 rpm, whichever is smaller.
• Pr6B = (Entry) x 2 ms
6 C
E x t e r n a l
r e g e n e r a t i v e
d i s c h a r g e
r e s i s t o r
s e l e c t i o n
Value
0
1
2
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
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 -
F u n c t i o n
Pr6A.
SRV-ON
On
Brake
BRK-OFF
released
Motor
Energized
current
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