6.11
Limit value processing
Max. three limit values can be configured for the outputs. Generally, each one of outputs
Out.1
...
Out.2
can be
used for limit value or alarm signalling.
Several signals allocated to an output are linked by a logic OR function.
6.11.1
Input value monitoring
g
The signal to be monitored can be selected separately for each alarm in the configuration. The following
signals are available:
•
Process value (display value)
•
Measured value INP
•
Zero adjustment
Each of the 3 limit values
Lim.1
…
Lim.3
has 2 trigger points
H
.
x (Max) and
L
.
x (Min), which can be switched off
individually (parameter = “
OFF
”). The hysteresis
HYS
.
x of each limit value is adjustable.
Input value monitoring is as shown below:
Display range
Limit value 1
Outputs
Display range
Limit value 1
Outputs
Display range
Limit value 1
Outputs
Normally open:
(
ConF
/
Out.
x /
O.Act
=
0
)
(as shown in the example)
Normally closed:
(
ConF
/
Out.
x /
O.Act
=
1
)
(inverted output relay action)
Functions
UNIFLEX SG 45
Limit value processing
29
H.1
LED rot / red
HYS.1
-1999
9999
H.1
operating principle with absolute alarm (Ex. Lim.1)
L.1
=
OFF
L.1
HYS.1
-1999
9999
LED rot / red
L.1
H.1
=
OFF
L.1
LED
LED
HYS.1
HYS.1
H.1
-1999
9999
rot / red
rot / red
L.1
H.1
