Sanyo Denki Sanmotion R 3E S, Instruction Manual, Page: 205 / 514

5.8 Parameter functions
5-82
5
O
per
ation
－ Group8 －
ID Contents
13
Electronic Gear 1 Numerator
[B-GER1]
Setting range Unit Default
1 to 2097152 - 1
14
Electronic Gear 1 Denominator
[A-GER1]
Setting range Unit Default
1 to 2097152 - 1
15
Electronic Gear 2 Numerator
[B-GER2] Setting range Unit Default
1 to 2097152 - 1
16
Electronic Gear 2 Denominator
[A-GER2] Setting range Unit Default
1 to 2097152 - 1
■
Sets the Electronic gear ratio to position command pulse.
 Two settings for Electronic gear ratio are available. Set gear 1 or gear 2 by switching.
✔ Switching of Electronic gear ratio should done at state without position command
input.
 If the position command pulse is the same, by switching the Electronic gear, rotating
velocity and distance are changed.
■
Example 1. Changing the unit of Position command pulse on the feed shaft with ball screw.
Use absolute encoder which has 131072[P/R] resolutions, decide the position of the lead
10[mm] ball screw. To calculate by 1
μ
m unit, use the calculation formula below and calculate the
Electronic gear ratio numerator and denominator.
131072[P/R]
 Encoder position resolution = = 13107200[P/m]
10 × 10
-3
[m]
 Position resolution of upper controller = 1000000[P/m]
13107200[P/m] 131072 8192
 Electronic gear ratio = = =
1000000[P/m] 10000 625
Thus, Electronic gear numerator = 8192, Electronic gear denominator = 625 are gotten.
(Setting value of numerator = 131072, denominator = 10000 are fine because they are within the
setting range of Electronic gear.)
f1
B (1 to 2097152)
A (1 to 2097152)
1/2
21
≦ B/A ≦ 2
21
f2 ( f2 = f1
×
B/A)