IFM Electronic efector 160 LK10 Bedienungsanleitung Seite 38

Hysteresis function (Hno, Hnc):
The hysteresis keeps the switch-
ing state of the output stable if
the level of the medium varies
about the preset value.
With the level rising, the output
switches when the set point has
been reached (SPx / OP*). With
the level falling, the output does
not switch back until the level
falls below the reset point rPx or
the hysteresis value of OP).
The hysteresis for OP is fixed. It is
a few millimetres.
The hysteresis for SPx can be adjusted: First the set point is set, then
the reset point with the requested distance.
*Notes on the operating principle of the overflow protection → page 12, para-
meter OP.
Window function (Fno, Fnc):
The window function enables
the monitoring of a defined
acceptable range. When the level
of the medium varies between
the set point (SPx) and the reset
point (rPx),
switched (window function / NO)
or not switched (window func-
tion / NC).
The width of the window can be
set by means of the difference
between SPx and rPx. SPx =
upper value, rPx = lower value.
38
the output
L = level
acceptable range
L
SP
rP
is
1
0
1
0
L = level
hysteresis
Hno
Hnc
t
Fno
Fnc