Binary Input - Samson 3374 Mounting And Operating Instructions

Configuration level
13.5 Position feedback signal
The position feedback indicates the actuator stem position. 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 up-
per and lower range values.
− When c37 = YES, the position feedback signal is 12 V or 24 mA in the event of an
error.
Code Description
c05 Unit
c06 Lower range value
c07 Upper range value
c37 Position feedback indicates error

13.6 Binary input

The function and switching state of the binary input can be configured as required.
− Inactive (c11 = NONE): No function is assigned to the binary input.
− Priority position (c11 = PRIO): The priority position is triggered and the actuator stem
moves to the position entered in Code c34 as soon as the binary input changes to the ac-
tive switching state. The valve leaves the priority position and follows the input signal af-
ter the binary input changes to the inactive switching state.
− Two-step mode (c11 = OPEN): When the binary input is in the active switching state, the
actuator stem moves to 100 % of the adjusted travel range. When the binary input is in
the inactive switching state, the actuator stem extends to move the valve to the closed po-
sition. This setting is only possible when 'Two-step mode' (06 = OPEN) is set as the ap-
plication.
42
WE Adjustment range
mA mA (current signal),
V (voltage signal)
2.0 V or 0.0 to 7.5 V or
4.0 mA 0.0 to 15.0 mA
10.0 V or 2.5 to 10.0 V or
20.0 mA 5.0 to 20.0 mA
NO YES (error reading active),
NO (error reading inactive)
EB 8331-4 EN