Fisher FIELDVUE DVC6200f Instruction Manual page 283

Instruction Manual
D103412X012
Table C‐2. Setting PlantWeb Alerts (Continued)
PlantWeb Alert
Alert Condition
(Group)
(Default Alert Category)
Travel Accumulator
Travel Accumulator
(Travel History)
(Disabled)
(Maintenance)
Performance Critical
Performance Critical
(Performance)
(Enabled)
(Failed)
Performance Reduced Performance
(Performance) Reduced
(Maintenance) (Enabled)
Performance Information Performance
(Performance) Information
(Advisory) (Enabled)
Table C‐3. Using PlantWeb Alerts
PlantWeb Alert
Alert Condition
(Group)
(Default Alert Category
Drive Current Drive Current
(Electronics) (Enabled)
(Failed)
Drive Signal Drive Signal
(Electronics) (Enabled)
(Maintenance)
What the Alert is Detecting
(Default)
The accumulated travel has
exceeded the configured limit.
Critical performance issues
based on continuous PD tests
internal to the instrument.
Reduced performance issues
based on continuous PD tests
internal to the instrument.
Performance Information
based on continuous PD tests
internal to the instrument.
What the Alert is Detecting
(Default)
The difference between the
expected Drive Current and the
actual Drive Current has
exceeded the Drive Current
Alert Time.
If one of the following
conditions exist:
Where Zero Power Condition is
defined as closed:
Drive Signal 10% and
<
Calibrated Travel
Drive Signal 90% and
>
Calibrated Travel
Where Zero Power Condition is
defined as open:
Drive Signal 10% and
<
Calibrated Travel
Drive Signal 90% and
>
Calibrated Travel
Related Parameters
(Default)
Alert Point (1,000,000)
Deadband (1%)
None
None
None
Effect on Valve/Instrument
If configured for Self Test
Shutdown, then the transducer
Actual mode is placed Out of
Service until the problem is
fixed. Out of Service results in
the instrument output
pressure(s) and actuator
position being at the Zero
Power Condition.
None - Indicates reduced
performance.
3%
>
97%
<
97%
<
3%
>
-Continued-
PlantWeb Alerts
July 2013
Guidelines for Setting
Packing Bonnets— enable the alert in the
Maintenance Alert Category. When
packing leaks are discovered, set the
Travel Accumulator alert to 90% of the
current Travel Accumulator Value,
triggering an alert prior to anticipated
leak.
Use default setting
Use default setting
Use default setting
Recommended
Help
Action
Check I/P module The instrument has
detected that the
difference between the
expected Drive Current
and the actual Drive
Current is greater than
the configured limit
1) Replace the I/P
module
2) Calibrate the device.
If the problem persists,
replace the printed
wiring board (PWB)
assembly.
Check instrument The instrument I/P
pneumatics drive signal necessary
to generate the
pressure output from
the instrument is not
within the expected
range. Potential causes
include I/P filter
plugged, instrument
pneumatic relay failure,
low supply pressure, air
leaks, or valve sticking.
Test the control valve
assembly for proper
operation. ValveLink
diagnostics can be used
for this purpose.
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