02/2014
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6.5.
Analogue output
The
Filter time
of minimum 0.1 seconds up to maximum 9.9 seconds defines a first order filter for the output
signal. The analogue value is more strongly dampened with increasing filter time.
For analogue output the illustration range is set by the definition of values for
Start of range
and
End of
Range
.
This applies during voltage output amounting to a max. output range 0 - 11 V or with current output 0 - 22 mA.
Exceedance can be reliably prevented within the illustrated range by the input
MIN
limit
and
MAX
limit
of the
defined output range.
The
Alarm value
function defines a fixed value for analogue output. This is activated if a correct recording of
the measured value is no longer possible in the input due to a fault and is programmed in the screen for
System controlling
with
the function
Alarm value
for analogue output.
Square root extraction can be realized by activating the button
Square root of the output signal
.
All adjustments made in this mask are stored and activated by the command
Program MTP
.
In principle it is possible to register an alarm value of 0. In this case the breakage monitoring
at mA-output can not differentiate between alarm value and line break. The result is a
constant switching of relay-3.
During voltage exit neither a short circuit nor an interruption of the connection to the burden
can be recognized!
mA-values for an output signal without and with square root extraction:
Input signal
Output signal
without square root extraction
Output signal
with square root extraction
0 %
4.00 mA
4.00 mA
25 %
8.00 mA
12.00 mA
50 %
12.00 mA
15.31 mA
75 %
16.00 mA
17.86 mA
100 %
20.00 mA
20.00 mA
