Emerson Fisher FIELDVUE DVC6000f, Инструкция по эксплуатации

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DVC6000f Digital Valve Controllers
December 2009 4-36
Deadband Reference
Deadband (+/
−
5%)
Deadband exceeded,
new Reference Point
established
Point
This amount of change is
added to the Travel
Accumulator.
A6534/IL
Figure 4-5. Travel Accumulator Deadband (set at 10%)
Temperature Units
Enter the temperature units (TEMPERATURE_UNITS
[89])
in degrees Fahrenheit or Celsius. The
temperature is measured from a sensor mounted on
the digital valve controller’s printed wiring board.
Travel Units
Define the units for valve travel (TVL_UNITS [91]) in
inches, centimeters, millimeters or degrees.
Length Units
Define the units for valve dimensions
(LENGTH_UNITS [92]) in inches, centimeters, or
millimeters.
Area Units
Define the units for actuator area (AREA_UNITS [93])
in inches
2
, centimeter
2
or millimeter
2
.
Spring Rate Units
Define the units for actuator spring rate
(SPRING_RATE_UNITS [94]) in lbs/in
2
or N/M.
Relay Type
Enter the Relay Type (RELAY_TYPE [42.5]).There are
three categories of relays that result in combinations
from which to select.
Relay Type: The relay type is printed on the label
affixed to the relay body:
A = double-acting or single acting
B = single-acting, reverse
C= single-acting, direct
Special App: This is used in single-acting
applications where the “unused” output port is
configured to read the pressure downstream of a
solenoid valve. See page 2-20 for additional
information.
Lo Bleed: The label affixed to the relay body
indicates it is a low bleed version.
Zero Power Condition
Zero Power Condition (ZERO_PWR_COND [42.2])
identifies whether the valve is open or closed when
instrument power is lost. If you are unsure how to set
this parameter, disconnect the segment loop power to
the instrument. The resulting valve travel is the Zero
Power Condition.
Maximum Supply Pressure
Enter the maximum supply pressure
(MAX_SUPP_PRESS [42.6]) in psi, bar, or kPa,
depending on what was selected for pressure units.
Calibration Person
Name of the person performing last calibration
(XD_CAL_WHO [31]).
Calibration Location
Indicates the location of the last instrument calibration
(XD_CAL_LOC [29]).
Calibration Date
Enter a date with the format MM/DD/YY. Date is a
user-defined variable that provides a place to save the
date of the last calibration (XD_CAL_DATE [30]).
Last Calibration Type
Indicates the type of the last calibration performed on
the instrument. Possible values are: Not Calibrated,
Single Point Calibration, Auto Calibration, Manual
Calibration.
Valve and Actuator
(TB
>
Configure/Setup
>
Detailed Setup
>
Valve and
Actuator)
Valve
Valve Manufacturer
Enter the identification number of the manufacturer of
the valve (VALVE_MAN_ID [25]) on which the
instrument is mounted. Select from the drop-down list
or enter the manufacturer’s identification number as
defined by the Fieldbus Foundation. For Fisher, the
manufacturer ID hex value is 005100.
Valve Model Number
Enter the valve model number (VALVE_MODEL_NUM
[26])
, (design letter or type number) for the valve on
which the instrument is mounted.
4