Wachendorff WDGA 58S handleiding

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Handleiding

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Technical Manual
WDGA with IO-Link
3 - Device description
ยฉ Wachendorff Automation GmbH & Co. KG
10
The scaling parameter "Total measuring range in measuring units (TMR)" - maximum
total measuring range of the position value (singleturn and multiturn multiplied) -
specifies the total resolution of the rotary encoder. If the position value reaches
TMR - 1, it jumps back to 0 and vice versa.
As a rule, the TMR parameter is selected so that it is an integer multiple of the
"Measuring units per revolution (MUPR)" (see equation (4)), so that the zero point is
always at the same position on the encoder shaft.
๐‘‡๐‘€๐‘… = 36000 ๐ถ๐‘ก๐‘ 
(3)
๐‘€๐‘‡ =
๐‘‡๐‘€๐‘…
๐‘€๐‘ˆ๐‘ƒ๐‘…
=
36000 ๐ถ๐‘ก๐‘ 
3600 ๐ถ๐‘ก๐‘ 
= 10
(4)
In exceptional cases, it is adequate that TMR is not an integer multiple of MUPR. For
example, if a transmission ratio in a system ensures that the desired measured variable
moves 10% faster than the encoder shaft in relation to the encoder shaft.
Then a setting of MUPR = 3960 Cts and TMR = 36000 Cts would ensure that the faster
but not directly measurable shaft can be measured with a resolution of 0.1ยฐ and over
a range of 10 revolutions. Normally, the number of revolutions would be calculated by
dividing the position value by MUPR. In this case, however, it must be divided by 3600
Cts, as the result would otherwise be the number of revolutions of the encoder shaft
and not that of the faster shaft of the system.
โ€ข Please note that measurement errors occur if the result of this
formula is a decimal number.

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Productinformatie

MerkWachendorff
ModelWDGA 58S
CategorieNiet gecategoriseerd
TaalNederlands
Grootte5087 MB