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10/07/2020 TR-ECE-BA-GB-0163 v03 Page 61 of 91
The following example serves to illustrate the approach.
Given:
● Measuring system with 4096 steps/rev. and max. 4096 revolutions
● Resolution 1/100 mm
● Make sure that the measuring system is programmed in its full resolution and measuring range
(4096x4096):
Measuring range in steps = 16777216,
Revolutions numerator = 4096
Denominator revolutions = 1
Set the mechanics to be measured to the left stop position
● Set measuring system to "0" by adjustment
● Set the mechanics to be measured to the end position
● Measure the mechanical distance covered in mm
● Read off the actual position of the measuring system on the connected control
Assumption:
● Distance covered = 2000 mm
● Measuring system actual position after 2000 mm = 607682 steps
Consequently:
Number of revolutions covered = 607682 steps / 4096 steps/rev.
= 148.3598633 revolutions
Number of mm/revolution = 2000 mm/148.3598633 revs. = 13.48073499 mm/rev.
For a resolution of 1/100 mm, this equates to 1348.073499 steps/revolution
required programming:
Number of numerator revolutions = 4096
Number of denominator revolutions = 1
Measuring range in steps = number of steps per revolution *
Number of numerator revolutions
Number of denominator revolutions
= 1348.073499 steps / rev. *
4096 numerator revolutions
= 5521709 steps (rounded)
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