Features Singleturn encoder Multiturn encoder
Supports encoder profile 22h defined in the
CIP (Common Industrial Protocol)
X X
Device level ring (DLR) X X
3.3 Operating principle of the encoder
The Absolute encoder detects the position and speed of rotary axes and outputs the
position in the form of a unique digital numerical value. Optical detection takes place
via an internal code disk.
The AFS60 is a singleturn encoder
Singleturn encoders are used when one shaft revolution must be detected absolutely.
The AFM60 is a multiturn encoder
Multiturn encoders are used when more than one shaft revolution must be detected
absolutely.
3.3.1 Scalable resolution
The steps per revolution or the total resolution can be scaled and adapted to the
respective application.
The steps per revolution are scalable from 1 ... 262,144 in whole numbers. The total
resolution of the AFM60 must be 2ⁿ-fold the steps per revolution. This restriction is not
relevant if the round axis functionality is activated.
3.3.2 Preset function
A preset value can be used to set the position value of the encoder. I. e. the encoder
can be set to any position within the measuring range. This allows, for example, the zero
position of the encoder to be aligned with the machine zero point.
Figure 1: Setting a preset value
1
Setting a preset value
2
When switching on again
3
Actual position value
4
Offset
5
Position value after preset
6
Position value after switching on again
PRODUCT DESCRIPTION 3
8014213/1EF3/2021-12-08 | SICK O P E R A T I N G I N S T R U C T I O N S | AFS/AFM60 EtherNet/IP
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Subject to change without notice