Panasonic minas a series - Details of Parameters; Parameters for Pulse Command Scaler (Pr46 through Pr4 B)

- App. 46 -
PrNo.
Parameter
Range Function
description
You can select the numerator of the command scalar.
*1 Select the 1st. or 2nd. numerator with scalar input switching
(DIV: CN I/F Pin 28) .
*2 Use the 3rd and 4th command scalars only for special operations such
as "fill-close" operations. For details, see FullClose Specifications.
<Example>
• Basic relation is defined so as the motor runs one revolution with the com-
mand input of encoder resolution(f), when the scale ratio is 1.
Therefore, when the encoder resolution is 10000 P/r, it is necessary to
enter f=5000 pulses in case of scale ratio of 2, and f=40000 pulse in case
of scale ratio of 1/4 to turn the motor one revolution.
• Set-up the Pr46, Pr4A and Pr4B so that the post-scaling internal command
(F) equals the resolution (10000 or 217) of the encoder.
F = f x (Pr46 x 2
Pr4A
)/Pr4B = 10000 or 2
17
F: Internal command pulse counts required for motor one revolution
f: Command pulse counts required for motor one revolution
46
~
4B
Details of Parameters
DIV off
DIV on
1st numerator (Pr46) selection
2st numerator (Pr47) selection
2
17
(131072) 10000(2500P/r x 4)
Pr 4A
17
Pr 46 1 x 2
Pr 4B 5000
Pr 46 10000 x 2
Pr 4B 5000
Pr 46 2500 x 2
Pr 4B 10000
Pr 4A
0
Pr 4A
0
Pr 4A
15
Pr 46 1 x 2
Pr 4B 10000
Resolution of encoder
Example 1:
Command input (f) is
5000 pulses per
one revolution
Example 1:
Command input (f) is
4000 pulses per
one revolution
(continued)