Lenze L-force HighLine C 8400 Series Reference Manual page 329

Calculation of the output signal
The output value at dnPosIn12_p is calculated as per the formula below:
t = integration time
16384 ≡ 15000 rpm
1 ≡ 1 incr.
Example
You want to determine the counter content of the integrator at a certain speed at the input
and a certain integration time t.
Given values:
 nFreqIn12_v = 1000 rpm ≈ integer value 1092
 Integration time t = 10 s
 Starting value of the integrator = 0
Solution:
 Conversion of the nFreqIn12_v input signal:
 Calculation of the output value:
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dnPosIn12_p [incr.] nFreqIn12_v [rpm] t [s] 65535 [incr./rev.]
=
1000 rpm
----------------------- 10 s 65535 incr. 1000 rev.
dnPosIn12_p
=
60 s
L
8400 HighLine C | Reference manual
⋅ ⋅
1000 rev.
= -----------------------
60 s
⋅ ⋅ 10922666 incr.
----------------------------
=
Rev.
I/O terminals
Digital input terminals
329