Samson TROVIS SAFE 3731-3, Монтаж и эксплуатация

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6 Operator controls and
readings
6.1 Rotary pushbutton
The rotary pushbutton ( ) is located under-
neath the front protective cover.
The positioner is operated on site using the
rotary pushbutton:
Turn
to select codes and values.
Press to confirm setting.
6.2 Serial interface
The serial interface connection is located un-
derneath the display lid: Unscrew and re-
move retaining screw and then unscrew dis-
play lid.
NOTICE
The explosion protection is ineffective as
soon as the display lid is opened!
The positioner needs to be supplied with at
least 4 mA.
To use the TROVIS-VIEW software, connect
the positioner over an adapter (see accesso-
ries in Table 5) to the RS-232 or USB port of
the computer.
6.3 Readings on display
Icons appear on the display that are as-
signed to parameters, codes and functions.
Operating modes:
4
Manual mode (MAN), section 8.2.1
The positioner follows the manual set
point (Code 1) instead of the mA signal
blinks: The positioner has not yet
been initialized. Operation only possible
over manual set point (Code 1).
4
Automatic mode (AUTO), sec-
tion 8.2.1
The positioner is in closed-loop operation
and follows the mA signal.
4
Fail-safe position , section 8.2.2
The positioner vents the output. The valve
moves to the mechanical fail-safe posi-
tion.
4
Bar elements:
In manual and automatic modes,
the bars indicate the system deviation
that depends on the sign (+/–) and the
value.
One bar element appears per 1 % sys-
tem deviation.
If the device has not yet been initialized,
the
icon blinks on the display and the
lever position in degrees in relation to
the longitudinal axis is indicated. One
bar element corresponds to approxi-
mately a 5° angle of rotation.
If the fifth bar element blinks (reading
> 30°), the permissible angle of rotation
has been exceeded. Lever and pin posi-
tion must be checked.
4
Status messages
: Maintenance alarm
: Maintenance required/Maintenance
demanded
blinking: Out of specification
These icons indicate that an error has oc-
curred.
A classified status can be assigned to
EB 8387-3S EN
43
Operator controls and readings
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