Panasonic minas a4 series Instruction Manual page 221

PrNo. Title
4C Setup of primary
delay smoothing
4D Setup of FIR
*
smoothing
4E Counter clear
input mode
<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
range
0 to 7 Smoothing filter is the filter for primary delay which is inserted after the electronic
<1> gear.
Purpose of smoothing filter
• Reduce the step motion of the motor while the command pulse is rough.
• Actual examples which cause rough command pulse are;
(1) when you set up a high multiplier ratio (10 times or more).
(2) when the command pulse frequency is low.
You can set the time constant of the smoothing filter in 8 steps with Pr4C.
Setup value
0
<1>
7
0 to 31 You can set up the moving average times of the FIR filter covering the command
<0> pulse. (Setup value + 1) become average travel times.
0 to 2 You can set up the clearing conditions of the counter clear input signal which clears
<1> the deviation counter.
Setup value
0 Clears the deviation counter at level (shorting for longer than 100µs)*1
<1> Clears the deviation counter at falling edge (open-shorting for longer than 100µs)*1
2 Invalid
*1 : Min. time width of CL signal
CL(Pin-30)
Function/Content
Time constant
No filter function
Time constant small
Time constant large
Clearing condition
100µs or longer
Standard default : < >
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