EB 8389-1S EN
13
Monitoring
2
Monitoring
2.1
Status messages
The valve diagnostics integrated into the po-
sitioner generates classified status messages.
Messages generated from the analysis of the
diagnosis can be classified according to the
possible causes. See
u
The following classifications are possible:
−
No message
If an event is classified as “No message”,
this event does not have any affect on the
condensed state.
−
Function check
Test or calibration procedures are per-
formed in the positioner. The positioner is
temporarily unable to perform its control
task as long as the procedure is taking
place.
−
Maintenance request/maintenance re
-
quired
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. Maintenance is
necessary in the medium term.
−
Out of specification
The positioner is running outside the
specified operating conditions.
−
Failure
The positioner cannot perform its control
task due to a functional fault in the posi-
tioner itself or in one of its peripherals or
an initialization has not yet been suc-
cessfully completed.
You can view these messages in TROVIS-
VIEW 4 in the
Diagnostics
folder (> Monitor-
ing) and its subfolders. The 'Positioner sta
-
tus', 'Valve status', 'Actuator status' and
'Valve position status' messages provide a
condensed state of the status messages of
each subfolder.
2.1.1
Resetting status messages
When a status message is generated, you
should first locate the source of the fault and
take action to remedy it.
For recommended action concerning the sta-
tus messages see
u
Status messages can be reset individually or
using the reset function. Table 2 on page
15 contains an overview on how the di-
agnosis can be reset. Resetting is performed
in the
Diagnostics
folder (> Service/mainte-
nance > Reset).
If you want to keep measured data and the
analysis after resetting the positioner, it is
possible to upload them onto a computer.
Resetting single status messages
−
Status messages represented by a code
in the positioner can be confirmed at the
positioner itself. Select the error code
and confirm it by pushing the rotary
pushbutton. See the standard instructions
of the positioner
u
−
On resetting histograms and diagrams,
the data for short-term monitoring are
also reset.