Samson 3730-4, Оригинальное руководство пользователя

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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 fifth 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 classified status can be assigned to each
error. Classifications include “No message”,
“Maintenance required”, “Maintenance de
-
manded” and “Maintenance alarm” (see
section 8.3).
Enable configuration
This indicates that the codes marked with an
asterisk (*) in the code list (section 14) are
enabled for configuration (see section 8.1).