Travel Alerts - Fisher FIELDVUEDVC6200f Instruction Manual

DVC6200f Digital Valve Controller
Detailed Setup - Transducer Block
February 2017

Travel Alerts

Note
The alerts contained in this section are valid for both travel and pressure control.
Working Setpoint is the output from the characterization function.
Travel (DeChar) (FINAL.VALUE [14.2]) displays the actual position of the valve in percent (%) of calibrated travel.
Travel Deviation
D Travel Deviation (DEVIATION_VALUE [23]) displays the absolute difference in percent between Travel Target and
Actual Travel.
D The Travel Deviation Alert (INST_ALERTS_ACTIVE [81.1]) is active if the Travel deviation exceeds the Travel
Deviation deadband for more than the Travel Deviation Time.
D Travel Deviation Time (DEVIATION_TIME [22]) is the time, in seconds, that the travel deviation must exceed the
Travel Deviation Alert Point before the alert is set.
D Travel Deviation Deadband (DEVIATION_DEADBAND [21]) is the travel in percent threshold (%) of ranged travel
required to activate a Travel Deviation alert.
D Travel Deviation FD Config
Latch
D The Latch Active Alert is active if the position latch is active.
D Latch Active FD Config
Travel Limit
D The Travel Limit High High Alert is active if the Travel exceeds the Travel Hi Hi Alert point.
D Travel Limit Hi Hi Alert Point (TVL_HI_HI_ALRT_PT [84.14]) is the value of the travel, in percent (%) of ranged travel,
which, when exceeded, sets the Travel Alert Hi Hi alert.
D Travel Hi Hi Deadband (TVL_HI_HI_DB [84.15]) is the travel, in percent (%) of ranged travel, required to clear a
Travel Hi Hi alert, once it has been set. See figure 4‐2.
Figure 4‐2. Travel Hi Alert Deadband
ALERT IS SET
ALERT IS CLEARED
A6532
60
TRAVEL ALERT
HIGH POINT
TRAVEL ALERT
DEADBAND
Instruction Manual
D103412X012