EWM-2SS-DAD/22E-PN
89475/119 ETM
Duplomatic MS
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EWM-2SS-DAD/22E-PN Start-up Manual
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89475-PN/119 ETM --- Mar 2019
31
MIN (deadband compensation)
MAX (output scaling)
TRIGGER (Response threshold for MIN parameter)
Command
Parameters
Unit
Group
MIN_1:I
X
MAX_1:I
X
TRIGGER_1 X
MIN_2:I
X
MAX_2:I
X
TRIGGER_2 X
i= A|B
x= 0… 6000
x= 3000… 10000
x= 0… 4000
x= 0… 6000
x= 3000… 10000
x= 0… 4000
-
0.01 %
0.01 %
0.01 %
0.01 %
0.01 %
0.01 %
OUTPUT
The output signal to the valve is adjusted by means of these commands. A kinked volume flow
characteristic is used instead of the typical overlap step for the position controls.
The advantage is a better and more stable positioning behaviour. With this compensation, non-
linear volume flow characteristic curves can be equalized too.
CAUTION!
: If there should also be adjustment options for deadband compensation on the
valve or valve amplifier, it must be ensured that the adjustment is performed either at the
power amplifier or in the module.
If the MIN value is set too high, it will influence the minimal velocity, which cannot be adjusted any
longer. In extreme cases, this leads to oscillation around the controlled position.
