Panasonic minas a4 series Instruction Manual page 225

PrNo. Title
6B Setup of
mechanical brake
action at running
6C Selection of
*
external
regenerative
resistor
6D Detection time of
*
main power off
6E Torque setup at
emergency stop
70 Setup of position
deviation excess
<Notes>
• For parameters which No. have a suffix of "*", changed contents will be validated when you turn on the
control power.
[Connection and Setup of Full-closed Control]
Setup
Unit
range
0 to 100 2ms 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
<0>
(BRK-OFF : CN X5, Pin-10 and 11) turns off, while the motor turns to
servo off during the motor in motion.
• 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.
Refer to P.45, "Timing Chart"-Servo-ON/OFF action while the motor is in
motion" of Preparation as well.
With this parameter, you can select either to use the built-in regenerative
0 to 3 –
resistor of the driver, or to separate this built-in regenerative resistor and
for
externally install the regenerative resistor (between RB1 and RB2 of
A, B-frame
Connector CN X2 in case of A to D-frame, between P and B2 of terminal
<3>
block in case of E, F-frame).
for
Setup value
C to F-frame
<0>
<0>
(C, D, E and
F-frame)
1
2
<3>
(A, B-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.
35 to 1000 2ms You can set up the time to detect the shutoff while the main power is kept
<35> shut off continuously.
The main power off detection is invalid when you set up this to 1000.
0 to 500 %
You can set up the torque limit in case of emergency stop as below.
• During deceleration of over-travel inhibit with the setup 2 of Pr66
<0>
(Sequence at over-travel inhibit input)
• During deceleration with the setup of 8 or 9 of Pr67 (Sequence at main
power off)
• During deceleration with the setup of 8 or 9 of Pr69 (Sequence at Servo-OFF)
Normal torque limit is used by setting this to 0.
0 to 32767 256 x
• You can set up the excess range of position deviation.
<25000> resolution • Set up with the encoder pulse counts at the position control and with the
external scale pulse counts at the full-closed control.
• Err24 (Error detection of position deviation excess) becomes invalid
when you set up this to 0.
Function/Content
Regenerative resistor Regenerative processing and
to be used regenerative resistor overload
Regenerative processing circuit will be
activated and regenerative resistor overload
Built-in resistor
protection will be triggered according to the
built-in resistor (approx. 1% duty).
The driver trips due to regenerative overload
protection
External resistor
processing circuit is activated and its active
ratio exceeds 10%,
Regenerative processing circuit is activated,
but no regenerative over-load protection is
External resistor
triggered.
Both regenerative processing circuit and
regenerative protection are not activated, and
No resistor
built-in capacitor handles all regenerative
power.
Standard default : < >
SRV-ON
ON OFF
BRK-OFF
release hold
tb
actual
energized non-
brake
energized
30 r/min
motor
energization
(Err18), when regenerative
223