Installation / Preparation for commissioning
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TR - ECE - BA - DGB - 0084 - 05
06/28/2017
3.5.2 Measuring system version with Analog-Current
Over the analog interface the measuring system position or speed can be output as
current value. The used acronyms in the formula are summarized in the legend on the
following page.
Analog 4…20 mA
Analog 0…20 mA
Analog Current / Position
Count direction:
Increasing
Note the sign!
Pos =
(I
O
– I
SV
) * (Pos
FV
– Pos
SV
)
+ Pos
SV
(I
FV
– I
SV
)
Figure 5: Output current in relation to the measuring system position
1)
Changing the parameter Counting direction, see chapter 4.1.1, changes also the
direction of the analog values and inverts the current counting direction at the
analog output (increasing --> decreasing or decreasing --> increasing)
Analog Current / Speed
Count direction:
Increasing
Note the sign!
n =
(I
O
– I
SV
) * (n
FV
– n
SV
)
+ n
SV
(I
FV
– I
SV
)
Figure 6: Output current in relation to the measuring system speed
2)
Changing the parameter Counting direction, see chapter 4.1.1, changes the sign of
the speed "n".
