8
EDS 820 IO-Link
Edition: 2016-01-13
HYDAC
ELECTRONIC
GMBH
Part No.: 669916
E
10.1.1
Twopoint mode - Switch point setting (SP)
One switch point and one switch-back point can be set for each switching output. The
particular output will switch when the pre-set switch point is reached and then switch back
when the level drops below the switch-back point.
Example for switch point 1 (N/C and N/O function):
Abbreviations: "SP1", "SP2" = switch point 1 / switch point 2
"RP1", "RP2" = switch-back point 1 / switch-back point 2
"HNO",
= N/O when hysteresis function is active
"HNC"
= N/C when hysteresis 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).
10.1.2
Window mode - Window function setting (Fno / Fnc))
The window function enables a range to be monitored. An upper and a lower switch point
defining the range can be assigned to each switching output.
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 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).
On
Normally open function
Off
On
Normally closed function
Off
