Panasonic Minas A4 Series - Page 156

154
Parameter Setup
ta td
Speed
Speed
command
58


59
0 to 5000
<0>

0 to 5000
<0>
2ms/
(1000r/min) 

2ms/
(1000r/min)
Acceleration time
setup

Deceleration time
setup
You can make the velocity control while adding acceleration and
deceleration command to the speed command inside of the driver. With
this function, you can make a soft-start when you enter the step-speed
command and when you use with the internal speed setup.
<Caution>
Do not use these acceleration/deceleration time setup when you use the
external position loop. (Set up both Pr58 and Pr59 to 0.)
Pr58 x 2ms/(1000r/min)
Pr59 x 2ms/(1000r/min)
ta
td
5A 0 to 500
<0>
2msSigmoid 
acceleration/
deceleration time
setup
In order to obtain a smooth operation, you can set up the quasi sigmoid
acceleration/deceleration in such application as linear acceleration/
deceleration where acceleration variation is large at starting/stopping to
cause a strong shock.
ta td
speed
ts ts ts ts
1. Set up acceleration/deceleration
for basic linear portion with Pr58
and Pr59
2.Set up sigmoid time with time width
centering the inflection point of
linear acceleration/deceleration
with Pr5A. (unit : 2ms)
ta : Pr58
td : Pr59
ts : Pr5A
ta
2
td
2
> ts, ts, and > ts
Standard default : < >
PrNo.
Setup
range
UnitTitle Function/Content
5E



5F
0 to 500
<500>
*2 

0 to 500
<500>
*2
%



%
1st torque limit 
setup


2nd torque limit
setup
You can set up the limit value of the motor output torque (Pr5E : 1st
torque, Pr5F : 2nd torque). For the torque limit selection, refer to Pr03
(Torque limit selection).
<Caution>
You cannot set up a larger value to this parameter than the default setup
value of "Max. output torque setup" of System parameter (which you
cannot change through operation with PANATERM
®
or panel). Default
value varies depending on the combination of the motor and the driver.
For details, refer to P.57, "Setup of Torque Limit " of Preparation.
• Setup value is to be given in
% against the rated torque.
• Right fig. shows example of
150% setup with Pr03=1.
• Pr5E limits the max. torque for
both CCW and CW directions.
This torque limit function limits the max. motor torque inside of the
driver with parameter setup.
In normal operation, this driver permits approx. 3 times larger torque
than the rated torque instantaneously. If this 3 times bigger torque
causes any trouble to the load (machine) strength, you can use this
function to limit the max. torque.
speed
200
100
(Rated)
(Rating)
100
200
300
torque [%]
300(Max.)
(Max.)
CW
CCW
when Pr5E=150
Use with the setup of
<Notes>
•For parameters which No. have a suffix of "*", changed contents will be validated when you turn on the
control power.
• For parameters which default. has a suffix of "*2", value varies depending on the combination of the driver
and the motor.