Set Current Output - Pepperl+Fuchs LUC-T10 Bedienungsanleitung

14.3

Set current output

Notes on current output:
• The current output must be set in % or in the
units of linearization.
• Measuring range spread: The beginning
and end of the current range can be set as
required with partial ranges of the total span
also being assigned.
• The current output can also be inverted so
that the value in V0H5 is greater than that in
V0H6. An increased measured value will
decrease the signal current.
• Output damping: The effect of the output
damping is to attenuate the analogue output
and the measurand indication on the display
of the LUC-T. When the liquid surface is not
steady, a steady reading can be obtained
with the aid of the output damping.
0 s = without damping
1...255 s = with damping
• Current on fault (V0H7)
4-wire
4 mA ... 20 mA, 4/20 mA, 8/16 mA
-10 % 2.4 mA 3.8 mA
+110 % 22 mA 22 mA
• 4 mA threshold: The 4 mA threshold
ensures that no value falls below this during
measurement.
Errors and warnings in V9H0
E620: The current output is outsidethe set
range (smaller than 3.8 mA, greater 20.5 mA).
Check the calibration and settings of the
current output.
24
2 Types of measurement
€
Continuous current output
The current from 4 mA to 20 mA is assigned to
a measuring range.
# VH
1 V8H1 e. g. 0
2 V0H5 e. g. 10 % H
3 V0H6 e. g. 90 % H
4 V0H4 e. g. 20 s H
5 V0H7 e. g. 1
2-wire
Entry Text
H Current output
0: linear
4 mA ... 20 mA
1: linear
4 mA ... 20 mA
with 4 mA threshold
Level for 4 mA
Level for 20 mA
Output damping
H Output on fault
0: -10 %
1:+110 %
2: HOLD (holds last
measured value)
Height
V0H6 90 %
V0H5 10 %
4 mA 20 mA
ó
Switch current output
The current values 4 mA and 20 mA or 8 mA
and 16 mA are set as switchpoints.
# VH Entry
1 V8H1 e. g. 2 H Current output
2: digital 4/20 mA
3: digital 8/16 mA
2 V0H5 e. g. 10 % H Switchpoint min.
4 mA or 8 mA
3 V0H6 e. g. 90 % H Switchpoint max.
20 mA or 16 mA
4 V0H4 e. g. 10 s H Output damping
5 V0H7 e. g. 1 H Output on fault
0: –10%
1: +110%
2: HOLD (holds last
measured value)
Height
V0H6 90 %
4 mA
8 mA
Text
V0H5 10 %
20 mA
16 mA