Scaling of phintx-out, Function library, Function blocks – Lenze EVS9332xP User Manual
Page 271
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Function library
Function blocks
3.5.53
Phase integrator (PHINT)
3−243
l
EDSVS9332P−EXT DE 2.0
3.5.53.2
Scaling of PHINTx−OUT
Mathematic description of PHINTx−OUT:
PHINTx–OUT[inc]
+ PHINTx–IN[rpm] @ t[s] @ 65536[incńUmdr.]
t = integration time
Example:
You want to determine the count of the integrator with a certain speed at the input and a certain
integration time.
l
Given values:
– PHINTx−IN = 1000 rpm
– t = 10 s
– Start value of the integrator = 0
l
Solution:
– Conversion of PHINTx−IN:
1000 rpm
+ 1000 rev.
60 s
– Calculation of PHINTx−OUT:
PHINTx
* OUT + 1000 rev.
60 s
@ 10 s @ 65536 inc
rev.
+ 10922666 inc
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