Function library
7-252
L
EDSVS9332P-D21 EN 3.0
7.5.70.2 Scaling of PHINTx-OUT
Mathematic description of PHINTx-OUT:
PHINTx–OUT[inc] = PHINTx–IN[rpm] ⋅ t[s] ⋅ 65536[inc∕Umdr.]
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.
•
Given values:
– PHINTx-IN = 1000 rpm
– t=10s
– Start value of the integrator = 0
•
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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