DVC6000f Series
March 2006
9-10
Table 9-2. Using PlantWeb Alerts (Continued)
PlantWeb
Alert and
(Group)
Alert
Category and
(Default)
Alert Condition
and (Default))
What the Alert is
Detecting
Effect on Valve /
Instrument
Recommended
Action
Help
Travel Sensor
(Sensors)
User Config.
(Failed)
Travel Sensor
(Enabled)
The parameter
TVL_COUNT is greater
than TVL_FAC_HI or less
than TVL_FAC_LO.
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
actuator being at the
Zero Power Condition.
Check mounting
and linkage
Travel feedback value is
outside expected limits. If
this problem occurs
during instrument set-up,
the most likely cause is
faulty mounting or
improper adjustment of
the travel sensor. If this
problem occurs during
normal operation, the
most likely cause is a
failure of the travel
sensor or damaged
linkage.
To correct,
1) Insure proper
mounting and linkage
adjustment.
2) Inspect and test travel
sensor
3) Toggle the transducer
target mode.
If the problem persists,
replace the printed wiring
board (PWB) assembly.
Output Press
Sensor
(Sensors)
User Config.
(Maintenance)
Port A Pressure
Sensor (Enabled)
The pressure sensor
reading is outside the
functional range of the
sensor.
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
actuator being at the
“No Power” condition.
Confirm proper
air supply
The pressure sensor
on-board the device has
failed. This may be due
to excessive supply
pressure or
contaminated air.
If it is verified that the air
supply is ok, replace the
printed wiring board
(PWB) assembly.
Port B Pressure
Sensor (Enabled)
None − Indicates a
possible hardware
problem that would
degrade diagnostic
capability.
Supply Press
Sensor
(Sensors)
User Config.
(Advisory)
Supply Press
Sensor (Enabled)
The pressure sensor
reading is outside the
functional range of the
sensor.
None − Indicates a
possible hardware
problem that would
degrade diagnostic
capability.
Confirm proper
air supply
The pressure sensor
on-board the device has
failed. This may be due
to excessive supply
pressure or
contaminated air.
If it is verified that the air
supply is ok, replace the
printed wiring board
(PWB) assembly.
−Continued−
9
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