Fail-Safe Position (Safe); Malfunction/Maintenance Alarm - Samson 3730 Series Mounting And Operating Instructions

Operation

8.2.2 Fail-safe position (SAFE)

If you want to move the valve to fail-safe po-
sition determined during start-up (see sec-
tion 7.1), proceed as follows:
→ Code 0
Turn
Press , display: current operating mode
( AUtO or MAN) , Code 0 blinks.
→ SAFE
Turn
Press , display: S .
The valve moves to the fail-safe position.
Once the positioner is initialized, the current
valve position is indicated on the display in
%.
Exit the fail-safe position
→ Code 0
Turn
Press , Code 0 blinks.
Turn and select the required operating
mode AUtO or MAN .
Press . The positioner switches to the op-
erating mode selected.
68
EB 8384-3 EN
8.3 Malfunction/maintenance
alarm
All status and fault alarms are classified
according to a status in the positioner. The
default settings of the status classification
are listed in the code list.
Note: The status classification can be
changed in TROVIS-VIEW and over the pa-
rameters in the DD file. Refer to EB 8389 EN
+
on EXPERT valve diagnostics.
To provide a better overview, the classified
alarms are summarized in a condensed
state. The following status alarms are avail-
able:
4
Maintenance alarm
The positioner cannot perform its control
task due to a functional fault in the de-
vice or in one of its peripherals or an ini-
tialization has not yet been successfully
completed.
4
Maintenance required
The positioner still performs its control
task (with restrictions). A maintenance
requirement or above average wear has
been determined. The wear tolerance
will soon be exhausted or is reducing at
a faster rate than expected. Mainte-
nance is necessary in the medium term.
4
Maintenance demanded
The positioner still performs its control
task (with restrictions). A maintenance
demand or above average wear has
been determined. The wear tolerance
will soon be exhausted or is reducing at
a faster rate than expected. Mainte-
nance is necessary in the short term.