Omron 8U0108-E1-01, Руководство пользователя

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XtraDrive User Manual Chapter 5 : Parameter Settings and Functions
5-27
5. Set the parameters.
Reduce the electronic gear ratio to lower terms so that both A and B
are integers smaller than 65535, then set A and B in the respective
parameters:
Pn202 Electronic Gear Ratio (Numerator)






A
B
Pn203 Electronic Gear Ratio (Denominator)
Parameter Signal Setting Control Mode
Pn202
Electronic Gear Ratio
(Numerator) Range: 1 to 65535
Default Setting: 4
Position Control
Pn203
Electronic Gear Ratio
(Denominator) Range: 1 to 65535
Default Setting: 1
Position Control
Set the electronic gear ratio according to equipment specifications.
M
Electronic
gear
B
_
A
Motor
XtraDrive
Reference
input puls e
Electronic Gear Ratio =






A
B
=
203 Pn
202 Pn
•
B = [(Number of encoder pulses) × 4] × [motor speed]
•
A = [Reference units (travel distance per load shaft revolution)] ×
[load shaft revolution speed]
Electronic Gear Setting Examples
The following examples show electronic gear settings for different load
mechanisms.
Ball Screws
Travel distance per load shaft revolution =
in 00004 . 0
in 24 . 0
=
6000
Electronic gear ratio
=






A
B
=
6000
1 x 4 x 2048
=
203 Pn
202 Pn
Pn202 8192 Preset
Values
Pn203 6000
Circular Tables
Travel distance per load shaft revolution =
°
°
1 . 0
360
= 3600
Electronic gear ratio
=






A
B
=
3600
3 x 4 x 2048
=
203 Pn
202 Pn
Pn202 24576 Preset
Values
Pn203 3600