
17
Function library
17.1
Function blocks | L_NLim_1
1427
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Overlapping of blocking zones
If blocking zones overlap, the lowest and highest value of the overlapping zones form a new zone.
In this case, the status display (
wState
output) will also just display one zone (the lower one of the
two original zones).
Abutting blocking zones
If two blocking zones abut (e.g. 20 ... 30 % and 30 ... 40 %), the limit value between the two zones (in
this example 30 %) is also passed through.
The same applies to a limit range of 0 ... xx %. At the zero crossing of the
nIn_a
input signal, a value
of "0" is also output at the
nOut_a
output. Value "0" cannot be excluded. If the
nIn_a
input signal
drops back to "0", the
nOut_a
output will retain the upper limit value.