Samson 3730-2 Mounting And Operating Instructions page 44

Start-up and settings
3. Turn the button until Code 1 appears,
confirm Code 1 by pressing
The hand symbol and Code 1 blink.
4. Position control valve by turning the
button several times until pressure builds
up, and the control valve moves to its fi-
nal positions so that the travel/angle of
rotation can be checked.
The permissible range has been ex-
ceeded when the displayed angle is
higher than 30°, and the outer right or
left bar graph element blinks.
If this is the case, it is absolutely neces-
sary to check lever and pin position as
described in section 2.
Simplified start-up!
For most applications, the positioner with its default settings is ready for operation,
provided it has been properly attached.
After the fail-safe position and the volume restriction have been set, the positioner only
needs to be initialized by pressing the INIT key.
Caution!
Prior to starting the initialization procedure, check the maximum permissible supply
pressure of the control valve to prevent the valve from being damaged. On initialization,
the positioner supplies the maximum available supply pressure. If necessary, restrict the
signal pressure by using a pressure reducing valve upstream of the control valve.
Initialization is run in default mode MAX (section 5.5.1). During this process, the
positioner adapts itself optimally to the maximum travel/angle of rotation range.
The only parameter that must be checked is the direction of action, i.e. whether the default
setting (Code 7 to ää = increasing/increasing) matches the application or whether it
must be changed.
The initialization modes described in following serve to individually adapt and optimize
the positioner to the way it is attached to the valve.
44
EB 8384-2 EN
Note!
button.
If the selected pin position is smaller than in-
tended for the respective travel range, the
positioner switches to the SAFE mode, the
valve moves to the fail-safe position (see
section 4.3.2 on page 42).
5. Initialize positioner as described in sec-
tion 5.5.