Samson 3730 Series - Serial Interface

6-2 EB 8384-3 EN
Operation
Operating modes
− (manual mode)
The positioner follows the manual set
point(Code1)insteadofthemAsignal.
blinks: The positioner is not initialized.
Operation only possible over manual set
point (Code 1).
− (automatic mode)
The positioner is in closed-loop operation
and follows the mA signal.
− S SAFE
The positioner vents the output. The valve
moves to the mechanical fail-safe posi-
tion.
Bar graph
In manual and automatic modes, the
bars indicate the set point deviation that de-
pendsonthesign(+/–)andthevalue.One
barelementappearsper1%setpointdevi-
ation.
If the positioner has not been initialized, (
blinks on the display), the bar graph indi-
cates the lever position in degrees in relation
to the mid-axis. One bar element corre-
spondstoapproximatelya5°angleofrota-
tion.Thefthbarelementblinks(reading>
30°)ifthepermissibleangleofrotationhas
been exceeded. Lever and pin position must
be checked.
Status messages
−
Maintenance alarm
− Maintenancedemanded/Mainte-
nance required
− blinks:Outofspecication
These icons indicate that an error has oc-
curred.
Aclassiedstatuscanbeassignedtoeach
error.Classicationsinclude“Nomessage”,
“Maintenancerequired”,“Maintenancede-
manded”and“Maintenancealarm“(see
uEB8389 on EXPERTplus valve diagnos-
tics).
Enable conguration
This indicates that the codes marked with an
asterisk (*) in the code list are enabled for
conguration(seethe'Start-upandcongu-
ration' section).
6.1 Serial interface
The positioner must be supplied with at least
4mA.
The positioner can be connected directly to
the computer over the local serial interface
and the serial interface adapter. The opera-
torsoftwareisTROVIS-VIEW(version4)with
installed device module 3730-3.