Lenze EVS 9300 series, System Manual

Page: 314 / 504

Function library
Function blocks
9.2.54 Phase integrator (PHINT)
9-188
L
EDSVS9332S-D11 EN 3.0
9.2.54.4 Scaling of PHINTx-OUT
Mathematical description of PHINTx-OUT:
PHINTx
−
OUT[inc]
=
PHINTx
−
IN[rpm]
⋅
t[s]
⋅
65536[inc
∕
rev.]
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.
z Given values:
– PHINTx-IN = 1000 rpm
– t = 10 s
– Start value of the integrator = 0
z 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