Travel Alerts - Fisher FIELDVUE DVC6200 Instruction Manual

Instruction Manual
D103409X012

Travel Alerts

Field Communicator Configure > Detailed Setup > Alert Setup > Travel Alerts (1‐2‐3‐4)
Travel—Travel displays the actual position of the valve in percent (%) of calibrated travel.
Setpoint—Setpoint is the input to the characterization function.
Travel Alert DB—Travel Alert Deadband is the travel, in percent (%) of ranged travel, required to clear a travel alert,
once it has been set. The deadband applies to both Travel Alert Hi/Lo and Travel Alert Hi Hi/Lo Lo. See figure 4‐2.
Figure 4‐2. Travel Alert Deadband
ALERT IS SET
ALERT IS CLEARED
A6532/IL
Travel Deviation Alert—If the difference between the travel target and the actual target exceeds the Travel Deviation
Alert Point for more than the Travel Deviation Time, the Travel Deviation Alert is set. It remains set until the difference
between the travel target and the actual travel is less than the Travel Deviation Alert Point minus the Travel Alert
Deadband.
D Travel Deviation Alert Enable—Select Yes or No. When enabled, the Travel Deviation Alert checks the difference
between the travel target and the actual travel. Factory default is Yes.
D Travel Deviation Alert Point—Travel Deviation Alert Point is the alert point for the difference, expressed in percent (%),
between the travel target and the actual travel. When the difference exceeds the alert point for more than the
Travel Deviation Time, the Travel Deviation Alert is set.
D Travel Deviation Time—Travel Deviation Time is the time, in seconds, that the travel deviation must exceed the Travel
Deviation Alert Point before the alert is set.
Travel Limit Alerts—Travel Alert Hi Hi is set if the ranged travel rises above the alert high point. Once the alert is set, the
ranged travel must fall below the alert high high point by the Travel Alert Deadband before the alert is cleared. See
figure 4‐2.
Travel Alert Lo Lo is set if the ranged travel falls below the alert low low point. Once the alert is set, the ranged travel
must rise above the alert low low point by the Travel Alert Deadband before the alert is cleared.
D Travel Alert Hi Hi Enable—Yes or No. Activates checking of the ranged travel against the Travel Alert Hi Hi points.
Factory default is No.
D Travel Alert Lo Lo Enable—Yes or No. Activates checking of the ranged travel against the Travel Alert Lo Lo points.
Factory default is No.
TRAVEL ALERT
HIGH POINT
TRAVEL ALERT
DEADBAND
Detailed Setup
May 2013
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