SICK AFS60 PROFINET User Manual

PRODUCT DESCRIPTION 3
8015078/145N/2019-05 -24 | SICK STEGMANN OPERATING INSTRUCTIONS | AFS60/AFM60 PROFINET
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Subject to change without notice
3.2 Operating principle of the encoder
The sensing system in the AFS60/AFM60 PROFINET Absolute Encoder is based on
absolute acquisition of revolutions without an external power supply or battery.
The AFS60/AFM60 PROFINET acquires the position of rotating axes and outputs the
position in the form of a unique digital numeric value. The number of steps in a turn is
acquired optically via an internal code disk. The number of turns is acquired using a
magnetic gearbox.
The AFS60 PROFINET is a singleturn encoder
Singleturn encoders are used if absolute acquisition of the rotation of a shaft is
required.
The AFM60 PROFINET is a multiturn encoder
Multiturn encoders are used if more than one shaft revolution must be acquired
absolutely.
3.2.1 Scaleable resolution
The steps per revolution and the total resolution can be scaled and adapted to the
related application.
The steps per revolution can be scaled from 1 … 262,144 as an integer. The total re-
solution of the AFS60/AFM60 PROFINET must be 2ⁿ times the resolution per revolu-
tion. This restriction is not relevant if the round axis functionality is activated.
3.2.2 Round axis functionality
The encoder supports the function for round axes. During this process, the steps per
revolution are set as a fraction (see section 3.6.12 on page 40). As a result, the total
resolution does not have to be configured to 2ⁿ times the resolution per revolution and
can also be a decimal number (e.g. 12.5).
NOTE
The output position value is adjusted with the zero point correction, the counting
direction set and the gearbox parameters entered.

SICK AFS60 PROFINET Specifications

General

Brand	SICK
Model	AFS60 PROFINET
Category	Media Converter
Language	English