Samson 3730-2 Mounting And Operating Instructions page 68

Electropneumatic positioner
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Code list
29*
Position transmitter x/ix
[ää]
äæ
ESC
30*
Fault alarm ix
[OFF] HI LO
ESC
Position transmitter test
31*
–10.0 to 110.0 [x before the
function is triggered] % of
the operating range
ESC
3)
Analog position transmitter: Code 29/30/31 can only be selected if the position transmitter (optional) is installed.
32*
Display special functions
NO [YES]
ESC
33*
Display total valve travel
NO [YES]
ESC
34*
Closing direction
CL [CCL]
ESC
35*
Blocking position
[0] mm/° /%
ESC
68
EB 8384-2 EN
3)
Operating direction of the position transmitter; indicates how the
travel/angle position is assigned to the output signal i, based on
the closed position.
The operating range (see Code 8) of the valve is represented by
the 4 to 20 mA signal. Values exceeding or falling below the
limits 2.4 to 21.6 mA can be represented.
When a positioner has not been initialized (reference variable
less than 3.6 mA), the power consumption of the feedback signal
is effective (current approx. 1.8 mA).
When YES is set in Code 32 , the position transmitter issues the
value as per Code 30 during initialization or zero calibration.
When NO is set in Code 32, 4 mA is issued during a running
self-adaptation.
3)
Used to select whether faults causing the fault alarm contact to
switch should also be signaled through the position transmitter
output and how they should be signaled
HI ix > 21.6 mA or LO ix < 2.4 mA
3)
Testing the position transmitter. Values can be entered in relation
to the operating range.
The current actual value is used in initialized positioners locally
as the start value (bumpless changeover to the test mode). On
testing over software, the entered simulation value is issued as
the position feedback signal for 30 seconds.
Fault alarm via display and fault alarm contact for special func-
tions, e.g. zero calibration, initialization and position transmitter
test (Code 31).
Fault alarm via display and fault alarm contact when the limit
value for the total valve travel is exceeded.
CL: Clockwise, CCL: Counterclockwise
Turning direction in which the valve is moved to the Closed posi-
tion (view onto the rotary switch motion when the positioner
cover is open).
Needs only be entered in initialization mode SUb (Code 6).
Entering the blocking position.
Distance up to the Closed position.
Only necessary in initialization mode SUb.

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