Window Function Setting (Fno / Fnc)) - HYDAC ELECTRONIC HNS 526-2 Notice D'utilisation

HNS 526

7.1.2 Window function setting (Fno / Fnc))

The window function enables a range to be monitored. An upper and a lower switch point
which defines the range can be assigned to each switching output.
The relevant output will then switch when the level enters this range.
When the level leaves this range, i.e. when the switch-back point has been reached, the
output switches back. The lower switch-back value is just below the lower switch value. The
upper switch-back value is just above the upper switch value. The range between the switch
value and the switch-back value forms a safety margin which prevents unwanted switching
operations from being triggered (such as those triggered by the pulsations of a pump).
Example for switching output 1 (N/C and N/O function):
Level
FH1 plus 1 %FS
FH1 FH1
FL1 FL1
FL1 minus 1 %FS
FNO FNO
Ein Ein
On
Normally open function
Schließerfunktion
Aus Aus
Off
FNC FNC
Ein Ein
On
Normally closed function Öffnerfunktion
Off
Aus Aus
Abbreviations: "FH1", "FH2"
"FL1", "FL2"
"FNO"
"FNC"
Notes:
■ It is only possible to set the switch point (SP) if it is higher than the respective
switch-back point (RP). In the case of low SPs we recommend setting the RP first.
■ The window function only works properly (switching on and off) if all switch values
(including the safety margin) are higher than the blind zone and below the
maximum scanning range.
Version: 06.10.2014
Off
Aus Aus
Sicherheitszone Sicherheitszone
Safety zone
On
Ein Ein
Sicherheitszone Sicherheitszone
Safety zone
= upper switch value 1 / upper switch value 2
= lower switch value 1 / lower switch value 2
= N/O when window function is active
= N/C when window function is active
HYDAC ELECTRONIC GMBH
Reverse switch point Rückschaltwert
Schaltwert Switch point Schaltwert
Ein Ein
On
Switch point Schaltwert Schaltwert
Reverse switch point Rückschaltwert
Aus Aus
Off
t t
13
E
Part No.: 669869