Inclination sensor JN
30
14.1 Output function ou1 and ou2
The output function OU can be set for both switching outputs to one of the
following values via the ISDU indices 580 and 590:
●
3 = hysteresis (normally OFF; normally open) [Hno]
●
4 = hysteresis (normally ON; normally closed) [Hnc]
●
5 = window (normally OFF; normally open) [Fno]
●
6 = window (normally ON; normally closed) [Fnc)
14.2 Output function "hysteresis (normally OFF; normally open)" [Hno]
The set point SP as from which the respective switching output is switched (red
path) can be defined for the measured process values.
Below this threshold the output remains switched off. As soon as the switching
threshold SP has been reached once, the measured process values must
decrease below the set reset point rP so that the switching output is switched off
again (green path).The hysteresis thus reached can be used to avoid constant
switching on and off in the event of minor process value fluctuations.
The respective parameter SP (set point) and rP (reset point) are used for setting.
Switching output
On
Off
Angle [°]
Hysteresis
rP
e.g. 45 ° → rP = 4500
SP
e.g.: 60 ° → SP = 6000
14.3 Output function "hysteresis (normally ON; normally closed)" [Hnc]
As compared to the previous output function, the output function "hysteresis
(normally ON)" uses inverted logic so that the output is first of all switched on for
small process values.
If the set set point SP is exceeded, the respective output is switched off (red path).