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Sigma II User's Manual
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Electronic Gear Setting Examples
The following examples show electronic gear settings for different load mecha-
nisms.
Ball Screws
Reference unit: 0.001mm
Load shaft
13-bit incremental
Ball screw pitch: 0.24in. (6mm)
encoder
Circular Tables
Reference unit: 0.1°
Load Shaft
Belts and Pulleys
Reference unit: 0.0010in. (0.0254mm)
Load shaft
Pulley diameter Φ100mm
Deceleration
ratio: 2.4:1
Set a PG dividing ratio equivalent
to 1024p/rev for the absolute encoder
Travel distance per load shaft revolution =
Electronic gear ratio =
Travel distance per load shaft revolution =
Deceleration
ratio: 3:1
13-bit Incremental encoder
Electronic gear ratio =
Travel distance per load shaft revolution =
Electronic gear ratio =
Chapter 5: Parameter Settings and Functions
2048 × 4 × 1
B
---
=
A
Preset
Values
2048 × 4 × 1
B
---
=
A
Preset
Values
1024 × 4 × 2.4
B
---
=
A
=
Preset
Values
5-31
0.24in.
= 6000
0.0004in.
Pn202
=
6000
Pn203
Pn202
8192
Pn203
6000
360°
= 3600
0.1°
Pn202
=
3600
Pn203
Pn202
24576
Pn203
3600
3.14 × 0.03937in.
= 12362
0.0010in.
Pn202
=
12362
Pn203
49152
9830.4
=
61810
12362
Pn202
49152
Pn203
61810
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