Panasonic A4 Series Power Supply User Manual


 
158
Parameter Setup
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.
Regenerative resistor
to be used
Regenerative processing and
regenerative resistor overload
Standard default : < >
PrNo.
Setup
range
UnitTitle Function/Content
6D
*
35 to 1000
<35>
2msDetection time of
main power off
You can set up the time to detect the shutoff while the main power is kept
shut off continuously.
The main power off detection is invalid when you set up this to 1000.
6E 0 to 500
<0>
%Torque setup at
emergency stop
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
(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.
70
0 to 32767
<25000>
256 x
resolution
Setup of position
deviation excess
• You can set up the excess range of position deviation. 
• 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.
72 0 to 500
<0>
%Setup of 
over-load level
• You can set up the over-load level. The overload level becomes 115 [%]
by setting up this to 0. 
• Use this with 0 setup in normal operation. Set up other value only when
you need to lower the over-load level. 
The setup value of this parameter is limited by 115[%] of the motor rating.
73
0 to 20000
<0>
r/minSetup of 
over-speed level
• You can set up the over-speed level. The over-speed level becomes 1.2
times of the motor max. speed by setting up this to 0.
• Use this with 0 setup in normal operation. Set up other value only when
you need to lower the over-speed level. 
• The setup value of this parameter is limited by 1.2 times of the motor
max. speed.
<Caution> 
The detection error against the setup value is ±3 [r/min] in case of the 7-wire
absolute encoder, and ±36 [r/min] in case of the 5-wire incremental encoder.
<Notes>
•For parameters which No. have a suffix of "*", changed contents will be validated when you turn on the
control power.