Siemens SIMATIC S5 Manual page 78

Machine Data, Modes and Traversing Programs
Example 1:
An incremental encoder generates 1000 pulses
per revolution. During this time, the reference
point on the axis travels a distance of 5 mm.
The resolution is thus:
Example 2:
In your drive system, you are using an encoder that generates 1000 pulses per
revolution. You are using a rotary axis, and have initialized it in [deg]. During one
encoder revolution, the drive moves 10 degrees.
Based on these values, the encoder resolution computes to the following:
10 deg
A =
1000 pul
A= 0.01 deg/pul
A= 10 · 0.001 deg/pul
Example 3:
The table below lists a number of examples of permissible and impermissible
parameter values:
Travel per revolution
Unit
1 mm [µm]
200 deg [0.001 deg]
40 deg [0.001 deg]
10 in [0.0001 in]
100 in [0.0001 in]
5-6
A =
A =
Pulses per Resolution
revolution
µm
[
5000 0.200
0.001 deg
[
1000 200
0.001 deg
[
500 80
0.0001 in
[
1800 55.56
0.0001 in
[
2000 500
IP 266
5 mm
1000 pul
µ
5 m/pul
Permissible
Unit
/ ]
•
pul
/ ]
pul
/ ]
•
pul
/ ]
•
pul
/ ]
pul
EWA 4NEB 812 6057-02