Fail-Safe Position (Safe) - Samson 3730-2 Mounting And Operating Instructions

%
Switching to manual mode (MAN)
Turn  Code 0
Press , display: AUtO, Code 0 blinks.
Turn  MAN
Press . The positioner changes to the man-
ual mode ( ).
The manual mode starts using the last set
point of the automatic mode, ensuring a
bumpless changeover. The current position is
displayed in %.
Adjust the manual set point
%
Turn  Code 1
Press , Code 1 blinks.
Turn until sufficient pressure has been
built up in the positioner and the control
valve moves to the required position.
EB 8384-2 EN
Automatic mode
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Note
The positioner automatically returns to
Code 0 if no settings are made within
120 seconds, but remains in the manual
mode.
Switch to automatic mode
Turn  Code 0
Press , Code 0 blinks.
Turn  AUtO
Press . The positioner switches to automat-
ic mode.
8.2.2

Fail-safe position (SAFE)

If you want to move the valve to the fail-safe
position determined during start-up (see sec-
tion 7.1), proceed as follows:
Turn  Code 0
Press , display: current operating mode
(AUTO or MAN), Code 0 blinks.
Turn  SAFE
Press , display: S
The valve moves to the fail-safe position.
If the positioner has been initialized, the cur-
rent valve position in % is indicated on the
display.
Exit the fail-safe position
Turn  Code 0
Operation
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