Fisher FIELDVUEDVC6200f Instruction Manual page 188

DVC6200f Digital Valve Controller
Field Diagnostic Alerts
February 2017
Table C‐2. Setting Field Diagnostic Alerts (continued)
Field Diagnostic Alert
(Group)
(Default Alert Category)
Temperature High
(Enabled)
Temperature Limit
(Environment)
(Maintenance)
Temperature Low
(Enabled)
Travel Deviation
Travel Deviation
(Travel)
(Enabled)
(Offspec)
Travel Limit Hi Hi
(Disabled)
Travel Limit
(Travel)
(Maintenance)
Travel Limit Lo Lo
(Disabled)
Travel Limit Hi
(Disabled)
(Travel)
Travel Limit Lo
(Disabled)
Travel Open
(Disabled)
Travel Closed
(Disabled)
Proximity Hi Hi
(Disabled)
(Proximity)
Proximity Hi
(Disabled)
Proximity Lo
(Disabled)
Proximity Lo Lo
(Disabled)
188
Alert Condition
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.
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%)
-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