HYDAC ELECTRONIC EDS 820, Руководство по эксплуатации

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EDS 820 IO-Link
13
Edition: 2020-04-21
HYDAC ELECTRONIC GMBH
Part No.: 669916 E
The relevant output will then switch when the pressure enters this range. When the level
leaves this range, i.e. when the switch-back point has been exceeded or fallen below, the
output switches back.
The lower switch-back value is just below the lower switching 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.
Example for switching output 1 (N/C and N/O function):
R ü ckschaltwert
Schaltwert
Schaltwert
R ü ckschaltwert
Sicherheitszone
Sicherheitszone
Ein
Aus
FL1 minus 0.4%FS
FL1
FH1
t
P
Ein
Ein
Aus
Aus
Ein
Aus
FNO
FNC
Schlie ß erfunktion
Ö ffnerfunktion
R ü ckschaltwert
Schaltwert
Schaltwert
R ü ckschaltwert
Sicherheitszone
Sicherheitszone
Ein
Aus
FL1
FH1
t
P
Ein
Ein
Aus
Aus
Ein
Aus
FNO
FNC
Schlie ß erfunktion
Ö ffnerfunktion
FH1 plus 0.4%FS
Abbreviations: "FH1", "FH2" = upper switch value 1 / upper switch value 2
"FL1", "FL2" = lower switch value 1 / lower switch value 2
"FNO"
= N/O when window function is active
"FNC" = N/C when window function is active
NOTICE

It is only possible to set the switch point (SP) if it is higher than the respective
switch-back point (RP).

The window function only works properly (switching on and off) if all switch
values (including the safety margin) are above 0 bar and below the nominal
pressure range.
Reverse switch point
Switch point
Switch point
Reverse switch point
On
On
Off
Off
Safety zone
Safety zone
On
Normally open function
Off
On
Normally closed function
Off