Instruction Manual

Detailed Setup
September 2013
4-19
A
B
Single-Acting Direct (Relay C)
Instrument goes to zero air out-
put at port A.
Failure direction per
actuator fail mode.
Single-Acting Reverse (Relay B)
Failure direction per
actuator fail mode.
Double-Acting (Relay A)
Failure direction cannot
be determined
.
LOSS OF POWER
LOSS OF
PNEUMATIC SUPPLY
Instrument goes to full supply
air output at port B.
Instrument goes to full supply
air output at port B. A goes to
zero air output.
RELAY TYPE
Figure 4-6. Zero Power Condition
Relay Type —There are three basic categories
of relays that result in various 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 only in single-acting
applications where the “unused” output port is
configured to read the pressure downstream of a
solenoid valve. See page 2-21 for additional
information.
Lo Bleed: The label affixed to the relay body
indicates it is a low bleed version (default for SIS tier).
Zero Power Condition (Zero Control Signal in
firmware 36)—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—Selections are
Disabled, Alert on Open or Close Contact, SIS Local
Control Panel or Push Button Partial Stroke Test. If
the LCP100 is not selected, the default is Partial
Stroke Test. If the LCP100 is selected during Setup
Wizard or enabled in Detailed Setup as Auxiliary
Terminal Action SIS Local Control Panel, the
following parameters will be automatically set under
Travel Alerts:
Hi Hi / Lo Lo Enable YES
Lo Lo Point (%) 1
Hi Hi Point (%) 99
DVC Power Up Manual Reset
Instrument Date and Time—A user-defined
variable that provides a place to save the date of the
last revision of configuration or calibration information.
Calibration 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 & Actuator (1-2-6)
Select Configure, Detailed Setup, and Valve &
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, View/Edit Feedback Connection, and
Assembly Specification Sheet.
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.
Valve Style—Enter the valve style, rotary or
sliding-stem.
Actuator StyleEnter the actuator style, spring
and diaphragm, piston double-acting without spring,
piston single-acting with spring, or piston double-acting
with spring.
Travel Sensor Motion—Select Clockwise, or
Counterclockwise. Travel Sensor Motion establishes
the proper travel sensor rotation. Determine the
4