6i/o terminals – Lenze 8400 HighLine User Manual
Page 338
6
I/O terminals
6.1
Digital input terminals
338
Lenze · 8400 HighLine · Referenzhandbuch · DMS 10.0 EN · 06/2014 · TD05/TD14
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Calculation of the output signal
The output value at dnPosIn12_p is calculated as per the formula below:
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:
t = integration time
16384 ≡ 15000 rpm
1 ≡ 1 incr.
dnPosIn12_p [incr.]
nFreqIn12_v [rpm] t [s] 65535 [incr./rev.]
⋅
⋅
=
1000 rpm
1000 rev.
60 s
-----------------------
=
dnPosIn12_p
1000 rev.
60 s
-----------------------
10 s 65535 incr.
Rev.
----------------------------
⋅
⋅
10922666 incr.
=
=