SICK AFS60 PROFINET User Manual

3 PRODUCT DESCRIPTION
12
OPERATING INSTRUCTIONS | AFS60/AFM60 PROFINET 8015078/145N/2019-05-24 | SICK STEGMANN
Subject to change without notice
Example with transmission ratio
A rotary table for a filling system is to be controlled. The resolution per revolution is pre-
defined by the number of filling stations. There are nine filling stations. For the precise
measurement of the distance between two filling stations, 1,000 steps are required.
Figure 1: Example position measurement on a rotary table with transmission ratio
The number of revolutions is pre-defined by the transmission ratio = 12.5 of the rotary
table gearing.
The total resolution is then 9 × 1,000 = 9,000 steps, to be realized in 12.5 revolutions
of the encoder. This ratio cannot be realized via the steps per revolution and the total
resolution, as the total resolution is not 2ⁿ times the steps per revolution.
The application problem can be solved using the round axis functionality. Here the
resolution per revolution is ignored. The total resolution as well as the nominator and
divisor for the number of revolutions are configured.
9,000 steps are configured as the total resolution.
For the nominator for the number of revolutions 125 is configured, 10 as the divisor
(
125
/10 = 12.5).
After 12.5 revolutions (that is after one complete revolution of the rotary table) the
encoder reaches the total resolution of 9,000.
125
10
Rotary table
with nine filling
stations
Encoder

SICK AFS60 PROFINET Specifications

General

Brand	SICK
Model	AFS60 PROFINET
Category	Media Converter
Language	English