Emerson Fisher FIELDVUE DVC6000, Инструкция по эксплуатации

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DVC6000 Digital Valve Controllers
September 2013 4-18
TRAVEL
RANGE
HIGH
TRAVEL
RANGE
LOW
THE SHAPE OF
THESE LINES DEPENDS ON
THE INPUT CHARACTERISTICS
LINEAR CHARACTERISTIC SHOWN
INPUT RANGE
LOW INPUT RANGE
HIGH
ANALOG INPUT
mA OR % OF 4-20 mA
CALIBRA
TED TRA
VEL,
%
A6531-1 / IL
Figure 4-5. Calibrated Travel to Analog Input Relationship
ZPC = CLOSED
ZPC = OPEN
NOTE:
ZPC = ZERO POWER CONDITION
Analog In Units—Permits defining the Analog
Input Units in mA or percent of 4
−
20 mA range.
Analog Input Range (1-2-5-3)
Input Range Hi—Permits setting the Input Range
High value. Input Range High should correspond to
Travel Range High, if the Zero Power Condition is
configured as closed. If the Zero Power Condition is
configured as open, Input Range High corresponds to
Travel Range Low. See figure 4-5.
Input Range Lo—Permits setting the Input Range
Low value. Input Range Low should correspond to
Travel Range Low, if the Zero Power Condition is
configured as closed. If the Zero Power Condition is
configured as open, Input Range Low corresponds to
Travel Range High. See figure 4-5.
Relay Type—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 2-22 for additional
information.
Lo Bleed: The label affixed to the relay body
indicates whether it is a low bleed version.
Zero Power Condition (Zero Control Signal in
firmware 2
−
6)—The position of the valve (open or
closed) when the electrical power to the instrument is
removed. Zero Power Condition (ZPC) is determined
by relay and actuator action, as shown in figure 4-6.
Maximum Supply Pressure—Enter the
maximum supply pressure in psi, bar, kPa, or kg/cm
2
,
depending on what was selected for pressure units.
Auxiliary Terminal Action—Disabled, Alert on
Open Contact, Alert on Close Contact, or Auto Travel
Calibration. Selecting Alert on Open or Closed Contact
activates checking the status of the auxiliary input
contacts. Selecting Auto Travel Calibration permits
starting an automatic travel calibration procedure by
placing a jumper across the auxiliary input terminals
for 3 to 5 seconds.
Instrument Date and Time—Permits setting the
instrument clock. When alerts are stored in the alert
record, the record includes the time and date. The
instrument clock uses a 24-hour format.
Calib Status and Type (1-2-5-9)
Last AutoCal Status—Indicates the status of the
last instrument calibration.
Last Calibration Type—Indicates the type of the
last instrument calibration.
Valve and Actuator (1-2-6)
Select Configure, Detailed Setup, and Valve and
Actuator. Follow the prompts on the Field
Communicator display to configure the following
instrument parameters: Manufacturer, Valve Serial
Number, Valve Style, Actuator Style, Travel Sensor
Motion, and View/Edit Feedback Connection.
Manufacturer—Enter the manufacturer of the
actuator on which the instrument is mounted. If the
actuator manufacturer is not listed, select Other.
Valve Serial Number—Enter the serial number
for the valve in the application with up to 12
characters.
4