Samson 3730-4 - Page 60

60 EB 8384-4 EN
Operating controls and readings
Readings
Icons assigned to certain codes, parameters
and functions are indicated on the display.
Operating modes:
−
Manual mode (see section8.2.1)
The positioner follows the manual set
point (Code 1) instead of the set point of
the process control system.
blinks: The positioner is not initialized.
Operation only possible over manual set
point (Code 1).
−
Automatic mode (see section8.2.1)
The positioner is in closed-loop operation
and follows the set point of the process
control system.
− S SAFE (see section8.2.2)
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/
Maintenance required
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
section8.3).
Enable conguration
This indicates that the codes marked with an
asterisk (*) in the code list (section14) are
enabled for conguration (see section8.1).