Panasonic A4 Series Power Supply User Manual


 
123
[Connection and Setup of Position Control Mode]
Connection and Setup of
Position Control Mode
6A 0 to 100
<0>
2msSetup of 
mechanical brake
action at stalling
You can set up the time from when the brake release signal (BRK-OFF :
CN X5, Pin-10 and 11) turns off to when the motor is de-energized
(Servo-free), when the motor turns to Servo-OFF while the motor is at
stall.
Refer to P.44, "Timing Chart"-Servo-ON/OFF Action While the Motor Is at
Stall" of Preparation as well.
• Set up to prevent a micro-travel/
drop of the motor (work) due to the
action delay time (tb) of the brake
• After setting up Pr6a
>
=
tb , 
then compose the sequence so as
the driver turns to Servo-OFF after
the brake is actually activated.
ON
SRV-ON
BRK-OFF
actual brake
motor
energization
release
OFF
hold
release
energized
hold
non-
energized
Pr6A
tb
6B 0 to 100
<0>
2msSetup of 
mechanical brake
action at running
You can set up time from when detecting the off of Servo-ON input signal
(SRV-ON : CN X5, Pin-29) is to when external brake release signal
(BRK-OFF : CN X5, Pin-10 and 11) turns off, while the motor turns to
servo off during the motor in motion.
Refer to P.45, "Timing Chart"-Servo-ON/OFF action while the motor is in
motion" of Preparation as well.
• Set up to prevent the brake
deterioration due to the motor
running.
• At Servo-OFF during the motor is
running, tb of the right fig. will be
a shorter one of either Pr6B
setup time, or time lapse till the
motor speed falls below 30r/min.
tb
ON
SRV-ON
BRK-OFF
motor
energization
release
OFF
hold
actual
brake
energized
non-
energized
30 r/min
6C
*
0 to 3
for
A, B-frame
<3>
for
C to F-frame
<0>
–Selection of 
external 
regenerative 
resistor
With this parameter, you can select either to use the built-in regenerative
resistor of the driver, or to separate this built-in regenerative resistor and
externally install the regenerative resistor (between RB1 and RB2 of
Connector CN X2 in case of A to D-frame, between P and B2 of terminal
block in case of E, F-frame).
<Remarks>
Install an external protection such as thermal fuse when you use the
external regenerative resistor. 
Otherwise, the regenerative resistor might be heated up abnormally and
result in burnout, regardless of validation or invalidation of regenerative
over-load protection.
<Caution> 
When you use the built-in regenerative resistor, never to set up other
value than 0. Don't touch the external regenerative resistor.
External regenerative resistor gets very hot, and might cause burning.
Setup value
<0>
(C, D, E and
F-frame)
1
2
<3>
(A, B-frame)
Built-in resistor
External resistor 
External resistor 
No resistor
Regenerative processing circuit will be
activated and regenerative resistor overload
protection will be triggered according to the
built-in resistor (approx. 1% duty).
The driver trips due to regenerative overload
protection (Err18), when regenerative
processing circuit is activated and its active
ratio exceeds 10%, 
Regenerative processing circuit is activated,
but no regenerative over-load protection is
triggered.
Both regenerative processing circuit and
regenerative protection are not activated, and
built-in capacitor handles all regenerative
power.
Standard default : < >
PrNo.
Setup
range
UnitTitle Function/Content
Regenerative resistor
to be used
Regenerative processing and
regenerative resistor overload