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Masoneilan SVI II AP Digital Positioner Quick Start Guide | 18
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
20. 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 Operating
mode and Manual 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:
Change mode to Manual mode
Examine and adjust all CONFIGuration items
Enter Calibration mode
Run STOPS to automatically calibrate stroke
Run autoTUNE to set dynamic response
Examine the device STATUS
Introduce manual set point changes to verify dynamic
performance
Содержание Masoneilan SVI II AP Series
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