SICK LFP Inox - Configuring the Switching Outputs; Switching Hysteresis and Window Function

OPERATING INSTRUCTIONS | LFP INOX 8019921/15H0 / 2019-09-30 | SICK AG
Irrtümer und Änderungen vorbehalten
26
8 OPERATION
8.2 Conguring the switching outputs
8.2.1 Switching hysteresis and window function
Depending on 2 or 4 output variants
Level
t
SP
RP
high
low
high
low
HNO
HNC
If the level is uctuating around the
set value (e.g., ripple movement
during lling), 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.
Depending on 2 or 4 output variants
Level
t
FH
FL
high
low
high
low
FNO
FNC
The window function enables monitor-
ing of a dened range. If the level is
between window high (FH) and window
low (FL), the output will be active (nor-
mally open) and/or inactive (normally
closed).
The error status of the measuring
device reects 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 eval-
uation is concerned, this corresponds
to a cable break.