Instruction Manual
D103412X012
PlantWeb Alerts
July 2013
285
Table C‐3. Using PlantWeb Alerts (Continued)
PlantWeb Alert
(Group)
(Default Alert Category
Alert Condition
(Default)
What the Alert is Detecting Effect on Valve/Instrument
Recommended
Action
Help
Travel Deviation
(Travel)
(Maintenance)
Travel Deviation
(Enabled)
The Travel Deviation has
exceeded the Travel Deviation
Alert Point by more than the
Travel Deviation Time.
None - Indicates a reduced
performance condition.
Check valve
friction, supply
air, instrument
tuning
The valve travel is not
following setpoint.
Check operation of the
valve and instrument.
Possible items include;
sticking valve, low
supply pressure,
broken feedback
linkage, instrument
pneumatic
components, actuator,
instrument tubing,
poor instrument
tuning, etc.
Test the control valve
assembly for proper
operation. ValveLink
software diagnostics
can be used for this
purpose.
Travel Limit
(Travel)
(Advisory)
Travel Limit Hi Hi
(Disabled)
The Travel has exceeded the
Travel Limit Hi Hi Alert Point.
None Check process
loop
The actual valve
position has exceeded
the configurable travel
limit (in %).
Travel Limit Lo Lo
(Disabled)
The Travel is lower than the
Travel Limit Lo Lo Alert Point.
None Check process
loop
N/A
(Travel)
(N/A)
Travel Limit Hi
(Disabled)
The Travel has exceeded the
Travel Limit Hi Alert Point.
None Check process
loop
The actual valve
position has exceeded
the configurable travel
limit (in %).
Travel Limit Lo
(Disabled)
The Travel is lower than the
Travel Limit Lo Alert Point.
None Check process
loop
The actual valve
position has exceeded
the configurable travel
limit (in %).
N/A
(Proximity)
(N/A)
Travel Open
(Disabled)
The Travel is greater than the
Open Alert Point
None Check process
loop
The actual valve
position is near the full
open position.
Travel Closed
(Disabled)
The Travel is greater than the
Closed Alert Point
None Check process
loop
The actual valve
position is near the full
closed position.
Proximity Hi Hi
(Disabled)
The Travel is within the
configured band of the
configured center point.
None
Check process
loop
The actual valve
position is near the
configured center
point.
Proximity Hi
(Disabled)
None
Proximity Lo
(Disabled)
None
Proximity Lo Lo
(Disabled)
None
Cycle Counter
(Travel History)
(Maintenance)
Cycle Counter
(Disabled)
The number of travel reversals
has exceeded the configured
limit.
None Perform periodic
maintenance
The cycle count limit
has been exceeded.
Perform periodic
maintenance. Check
packing, linkages,
diaphragms, seals, etc.
Travel Accumulator
(Travel History)
(Maintenance)
Travel
Accumulator
(Disabled)
The accumulated travel has
exceeded the configured limit.
None Perform periodic
maintenance
The travel accumulator
limit has been
exceeded. Perform
periodic maintenance.
Check packing,
linkages, diaphragms,
seals, etc.
-Continued-