![background image](http://html1.mh-extra.com/html/sick/a3m60-advanced/a3m60-advanced_operating-instructions-manual_1264516013.webp)
Product description
Operating Instructions
Chapter
3
13
8014012/1EF3/2021-12-08
Subject to change without notice
© SICK AG
•
Germany
•
All rights reserved
A3M60 Basic
Note
3.4.5
Speed and time stamp
The speed and time stamp are output in message IO<08 as input to the PLC.
The speed is stated in revolutions per minute (rpm). The value is given in a data word
(2 bytes) and has a sign, i.e. negative values for reducing position values
(e.g. FF.FEh =
–
2).
The calculation is made using a moving average filter over 200 position values. The
integration time is 1 s, the update interval is 5 ms.
The time stamp is incremented in steps of 1 s. The value is given in a data word (2 bytes).
After each power-up the time stamp is reset to zero.
3.5
Functions for which parameters can be set
The A3M60 Basic is configured using the configuration tool for a PLC (e.g. STEP7 for
SIMATIC).
3.5.1
Code sequence
The code sequence defines the direction of rotation, viewed on the shaft, in which the
position value increases.
clockwise = increasing position value on clockwise rotation of the shaft
counterclockwise = increasing position value on counter clockwise rotation of the shaft
3.5.2
Class 2 functionality
The class 2 functionality is activated from the factory. This parameter permits or prevents
changes to the following parameters:
code sequence, scaling and implementation of a preset
3.5.3
Scaling
Scaling makes it possible to scale the resolution per revolution and the total resolution.
Only if the parameter
Scaling
is configured to
Enable
are the values entered for the
resolution and total resolution applied.
3.5.4
Resolution per revolution
The resolution is max. 8,192 steps per revolution. The resolution can be scaled from
1 … 8,192
as an integer.
Tab. 9: Examples for total
resolution
3.5.5
Total resolution/measuring range
The total resolution, that is the measuring range of the A3M60 Basic is max. 67,108,864
steps. The total resolution must be 2
n
times the resolution per revolution.
Resolution per revolution
n
Total resolution
1,000
3
8,000
8,179
5
261,728
2,048
11
4,194,304