Fisher FIELDVUE DVC6200f Instruction Manual page 282

PlantWeb Alerts
July 2013
Table C‐2. Setting PlantWeb Alerts (Continued)
PlantWeb Alert
Alert Condition
(Group)
(Default Alert Category)
Temperature High
(Enabled)
Temperature Limit
(Environment)
(Advisory)
Temperature Low
(Enabled)
Travel Deviation
Travel Deviation
(Travel)
(Enabled)
(Maintenance)
Travel Limit Hi Hi
(Disabled)
Travel Limit
(Travel)
(Advisory)
Travel Limit Lo Lo
(Disabled)
Travel Limit Hi
N/A
(Disabled)
(Travel)
Travel Limit Lo
(N/A)
(Disabled)
Travel Open
(Disabled)
Travel Closed
(Disabled)
Proximity Hi Hi
N/A
(Disabled)
(Proximity)
Proximity Hi
(N/A)
(Disabled)
Proximity Lo
(Disabled)
Proximity Lo Lo
(Disabled)
Cycle Counter
Cycle Counter
(Travel History)
(Disabled)
(Maintenance)
280
What the Alert is Detecting
(Default)
The temperature is greater
than the Temperature Hi Alert
Point.
The temperature is lower than
the Temperature Lo Alert
Point.
The Travel Deviation has
exceeded the Travel Deviation
Alert Point by more than the
Travel Deviation Time.
The Travel has exceeded the
Travel Limit Hi Hi Alert Point
The Travel is lower than the
Travel Limit Lo Lo Alert Point.
The Travel has exceeded the
Travel Limit Hi Alert Point.
The Travel is lower than the
Travel Limit Lo Alert Point.
The Travel is greater than the
Open Alert Point
The Travel is greater than the
Closed Alert Point
The Travel is within the
configured band of the
configured center point.
The number of travel reversals
has exceeded the configured
limit.
Related Parameters
(Default)
Alert Point ( 186_F)
Alert Point ( -63_F)
Alert Point (5%)
Alert Time (10 sec)
Deadband (2%)
Alert Point (125%)
Deadband (5%)
Alert Point (-25%)
Deadband (5%)
Alert Point (125%)
Deadband (5%)
Alert Point (-25%)
Deadband (5%)
Alert Point (99.5%)
Deadband (5%)
Alert Point (0.5%)
Deadband (5%)
Alert Point (125%)
Deadband (5%)
Alert Point (125%)
Deadband (5%)
Alert Point (-25%)
Deadband (5%)
Alert Point (-25%)
Deadband (5%)
Alert Point (1,000,000)
Deadband (1%)
-Continued-
Instruction Manual
D103412X012
Guidelines for Setting
Use default settings
Other alert points may be chosen to
indicate changes in the instrument
environment.
Enable the alert in the Maintenance Alert
Category. Set the Alert Point at -40_F if
the instrument uses Nitrile elastomers
and -63_F if it uses Fluorosilicone
elastomers.
Other alert points may be chosen to
indicate changes in the instrument
environment.
Enable the alert in the Maintenance Alert
Category. Use the default settings with
valves that are 4 inch and smaller with
PTFE packing systems.
With other valves, the user can refine the
settings with ValveLink software Dynamic
Error Band and Step Response Tests. Set
the related parameters as follows:
Tvl Dev Alert Point—set equal times 2 the
Maximum Dynamic Error, minimum 3%
Tvl Dev DB—set equal to the Dynamic
Error Band, minimum 2%
Tvl Dev Time—set equal to the T98 time
for a Step Test from 0 to 100% Travel,
minimum 10 seconds.
Enable this alert for critical loops, where it
is important to alert an operator if the
valve is approaching the wide open
position. A typical setting might be 95%.
Enable this alert for critical loops, where it
is important to alert an operator if the
valve is approaching the closed position.
A typical setting might be 5%.
Use the Alert Points and Deadband to
configure the Proximity Alerts below.
Use the Alert Points and Deadband to
configure the Proximity Alerts below.
Enable and set to report Travel with DI
Block
Enable and set to report Travel with DI
Block
Enable and set to report Travel with DI
Block
Enable and set to report Travel with DI
Block
Enable and set to report Travel with DI
Block
Enable and set to report Travel with DI
Block
Bellows Seal Bonnets— enable the alert in
the Maintenance Alert Category. Use the
bellows manufacturer's cycle life data to
set cycle limits.