Emerson Fisher FIELDVUE DVC6000, Инструкция по эксплуатации

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Detailed Setup
September 2013 4-15
Deadband Reference
Deadband (+/
−
5%)
Deadband exceeded,
new Reference Point
established
Point
This amount of change is
added to the Travel
Accumulator.
A6534/IL
Figure 4-3. Travel Accumulator Deadband (set at 10%)
the Travel Cutoff Low is deactivated, since only one of
these parameters can be active. Travel Limit Low is
deactivated by setting it to
−
25.0%.
Change Travel Limits—Allows you to set hi and
lo travel limits. Setting a travel limit will eliminate the
corresponding Tvl/Press Cutoff.
Travel History Alerts (1-2-3-5)
Cycle Counter (1-2-3-5-1)
Cycle Counter Alert Enable—Yes or No.
Activates checking of the difference between the
Cycle Counter and the Cycle Counter Alert point. The
Cycle Counter Alert is set when the value exceeds the
Cycle Counter Alert point. It is cleared after you reset
the Cycle Counter to a value less than the alert point.
Factory default is No.
Cycle Counter—Records the number of times the
travel changes direction. The change in direction must
occur after the deadband has been exceeded before it
can be counted as a cycle. See figure 4-4. You can
reset the Cycle Counter by configuring it as zero.
Cycle Counter Alert Point—The value of the
Cycle Counter, in cycles, which, when exceeded, sets
the Cycle Counter Alert.
Cycle Count/Travel Accumulator Deadband
(1-2-3-5-2)
Deadband
Cycle Counter Deadband is the area around the travel
reference point, in percent (%) of ranged travel, that
was established at the last increment of the Cycle
Counter. This area must be exceeded before a change
in travel direction can be counted as a cycle. See
figure 4-4.
Deadband Reference
Deadband (+/
−
5%)
Deadband exceeded, and direction
changed, new Reference Point
established
Point
Point at which
cycle is counted.
A6533-1/IL
Figure 4-4. Cycle Counter Deadband (set at 10%)
Travel Accumulator Deadband is the area around the
travel reference point, in percent (%) of ranged travel,
that was established at the last increment of the
accumulator. This area must be exceeded before a
change in travel can be accumulated. See figure 4-3.
Travel Accumulator (1-2-3-5-3)
Travel Accumulator Alert Enable—Yes or No.
Activates checking of the difference between the
Travel Accumulator value and the Travel Accumulator
Alert Point. The Travel Accumulator Alert is set when
the Travel Accumulator value exceeds the Travel
Accumulator Alert Point. It is cleared after you reset
the Travel Accumulator to a value less than the alert
point. Factory default is No.
Travel Accumulator—Records the total change in
travel, in percent (%) of ranged travel, since the
accumulator was last cleared. The value of the Travel
Accumulator increments when the magnitude of the
change exceeds the Travel Accumulator Deadband.
See figure 4-3. You can reset the Travel Accumulator
by configuring it to zero.
Travel Accumulator Alert Point—The value of the
Travel Accumulator, in percent (%) of ranged travel,
which, when exceeded, sets the Travel Accumulator
Alert.
SIS Alerts (1-2-3-6)
Note
SIS Alerts are only available for
instrument level ODV.
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