Operating Direction Increasing/Decreasing; Position Feedback Signal - Samson 3374-10 Mounting And Operating Instructions

Configuration level
9.4.2 Operating direction increasing/decreasing
− End position guiding (stem retracts) (c35): The actuator stem moves the valve to the low-
er end position if the input signal reaches the value entered in this code. Setting c35 =
100.0 % causes this function with a retracting actuator stem to be deactivated.
− End position guiding (stem extends) (c36): The actuator stem moves the valve to the top
end position if the input signal reaches the value entered in this code. Setting c36 =
0.0 % causes this function with an extending actuator stem to be deactivated.
Code Description
c35 End position guiding (stem retracts)
c36 End position guiding (stem extends)

9.5 Position feedback signal

The position feedback indicates the actuator stem position, which is issued as an analog sig-
nal at the terminals U OUT or I OUT. The span of the position feedback signal is adjusted
over the lower and upper range value parameters.
Note
− At least 2.5 V or 5 mA (depending on the input signal used) must separate the upper and
lower range values.
− When c37 = YES, the position feedback signal is 12 V or 24 mA in the event of a fault.
− During initialization, transit time measurement or zero calibration, the position feedback
signal = 0 V or 0 mA.
Code Description
c05 Unit
c06 Lower range value
c07 Upper range value
c37 Superimposing an error message
54
WE Adjustment range
97.0 % 50.0 to 100.0 %
1.0 % 0.0 to 49.9 %
WE Adjustment range
mA mA (current signal)
V (voltage signal)
4.0 mA 0.0 to 7.5 V or 0.0 to 15.0 mA
20.0 mA 2.5 to 10.0 V or 5.0 to 20.0 mA
NO YES (error reading active)
NO (error reading inactive)
EB 8331-4 EN