Configuring The Switching Outputs - Sick Lfp Inox Betriebsanleitung

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Operating instructions

3 Configuring the switching outputs

Switching hysteresis and window function
Level
SP
RP
aktiv
inaktiv
aktiv
inaktiv
Level
FH
FL
aktiv
inaktiv
aktiv
inaktiv
68 8014485/YE12/2014-08-20 © SICK AG • Level sensors • Germany • Subject to change without notice
3 Configuring the switching outputs
t
HNO
HNC
t
FNC
FNO
If the level is fluctuating around the
set value (e.g., ripple movement during
filling), the hysteresis keeps the switching
status of the outputs stable. When the
level is increasing, the output switches
when the respective switching point (SP)
is reached; if the level sinks again, the
output switches back only after the reset
switching point (RP) has been reached.
The window function enables monitoring
of a defined range. If the level is between
window high (FH) and window low (FL),
the output will be active (normally open)
or inactive (normally closed).
The error status of the measuring device
reflects the cable break monitoring.
During an error status, the measuring
device switches to the safe state; i.e., the
switching outputs become inactive.
As far as the downstream signal evalua-
tion is concerned, this corresponds to a
cable break.
LFP Inox