Masoneilan SVI II AP Installation and Maintenance ... - GE Energy

GE Oil and Gas
SVI II AP Instruction Manual
HART Handheld Communicator
ValVue
The HART handheld communicator is a universally available tool that provides all the
accessibility of the local button and display. The HART tool has the functionality to upload
and download configurations, enter alphanumeric messages and set the custom
characteristic numerical parameters. The GE DPI620 is approved for Intrinsically Safe
use in Hazardous Areas in accordance with SVI II AP approvals. See “HART
Communications with Intrinsic Safety” on page 123 and “Wiring an SVI II AP” on
page 105 for additional information concerning this device.
ValVue combines the power of the PC with the features of the SVI II AP for ease of use
and automation of positioner operation and full access to all data. ValVue Lite is provided
with all SVI II AP positioners and is recommended for set up, service and maintenance
where a PC or laptop is permitted. See “Configuring and Calibrating with ValVue” on
page 103 for further information.
Pushbuttons and Local Display
This section covers the optional local interface consisting of the LCD alphanumeric
display and pushbuttons. Operation of the SVI II AP Digital Valve Positioner as a local
device is controlled through the optional device-mounted pushbuttons and digital display,
shown in Figure 51 on page 73. Using the display you can read the input signal, valve
position, and actuator pressure. The display sequences from one variable to the next
every 1.5 seconds.
Using the pushbuttons you can exit from operating mode at any time and step through a
menu structure to perform a wide range of manual operation, calibration, configuration,
and monitoring functions that are described later in this section. ValVue is used to perform
all diagnostics functions. The pushbuttons do not support diagnostics functions.
The SVI II AP has two operational modes: Normal (normal operating mode) and Manual
(manual operating mode) and two setup modes, Configuration and Calibration. The SVI II
AP also has two modes for handling of faults and power-up: Reset and Failsafe. When
commissioning or checking a control valve with SVI II AP fully installed the following steps
are recommended:
1. Change mode to Manual mode.
2. Examine and adjust all Configuration items.
3. Enter Calibration mode.
4. Run Stops to automatically calibrate stroke.
5. Run Auto Tune to set dynamic response.
6. Examine the device status.
7. Introduce manual set point changes to verify dynamic performance.
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