95
Auxiliary functions
Type 8792, 8793 REV.2
16.1.7
SPLTRNG –
Signal split range
Min. and max. values of the input signal as% for which the valve runs through the entire stroke range.
Factory setting:
Min = 0%; Max = 100%
Type 8793:The
SPLTRNG
auxiliary function can only be selected when operating as a positioner
(position controller).
P.CONTROL
= not activated.
Use this auxiliary function to limit the position set-point value range of Type 8792/8793 by specifying a minimum
and a maximum value.
As a result, it is possible to split a used standard signal range (4...20 mA, 0...20 mA, 0...10 V or 0...5 V) over
several devices (without or with overlapping).
This allows several valves to be used
alternately
or, in the case of overlapping set-point value ranges,
simul-
taneously
as actuators.
Enter the signal split range as follows: ( Setting on the process level)
→
/ Select
SPLTRNG
. The effective direction is indicated on the display.
→
Select
ENTER
. The input screen for inputting the effective direction is displayed.
→
Select
INPUT
.
The
Min 0%
input screen for inputting values is opened.
→
/ Enter value: Enter the minimum value of the input signal as%. Adjustment range: 0...75%
+
Increase value
-
Reduce value
→
Select
INPUT
.
The
Max 100%
input screen for inputting values is opened.
→
/ Enter value: Input the maximum value of the input signal as%.
Adjustment range: 25...100%
+
Increase value
-
Reduce value
→
Select
OK
*. Acknowledge input and return to the display of
SPLTRNG.
You have entered the signal split range.
* If the submenu is left by pressing the
ESC
key, the value remains unchanged.
The changed data is saved in the memory (EEPROM) only when there is a switch to the process
level, by leaving the main menu (MAIN) using the left selection key
EXIT
.
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