Chapter 15: Controller Configuration
Chapter 9 of Configuration Mode describes the configuration of SVI as a positioner only. If the SVI
Controller version is purchased and is enabled, the process controller is partly configured in configura-
tion mode and partly in the Controller Parameters window, which is accessible from the Controller
Monitor window (see Chapter 17 of Controller View). This chapter concentrates on the controller config-
uration in configuration mode.
To setup a process controller, follow the following steps:
1.
Turn the controller on in Setup page and complete basic controller configuration in Controller
page in SVI Configuration window. Click OK to exit to the Manual Mode window.
2.
Calibrate the controller in SVI Calibration mode and click OK to exit to the Manual Mode
window (see Chapter 16).
3.
Click the Controller View button to enter into the Controller Monitor window. Click the Set
Param. button to enter into the Controller Parameters window to finish controller configuration
and set initial PID parameters (see Chapter 17).
4.
Tune the process control loop to refine PID parameters. The process trend graph can be
used in the tuning process.
SVI must be switched to manual mode first in order to access configuration mode. Clicking the
Configure button in the Manual Mode window will retrieve current configuration data from the SVI and
present them in the SVI Configuration window.
Turning Process Controller On
To enable the built-in process controller, go to the Setup page of the SVI Configuration window. The
Setup page appears when clicking the Setup Tab in the SVI Configuration window. A typical Setup page
is shown below. This page allows the user to choose and set configuration parameters such as air to
open or close valve, single or double acting actuator, process controller on or off, direct or reverse, posi-
tion and pressure fault limits. These selection and values are described in Chapter 9 of Configuration
Mode.
If the SVI is purchased with the process controller option, the selection of process controller ON is valid
in the Setup page. To enable the controller, click on the process controller ON button. When Process
Controller On is selected, windows and buttons associated with the process controller are enabled to
allow configuration, calibration and operation of the built-in PID process controller. The Controller Tab in
the SVI Configuration window is enabled for basic process controller configuration. After the configura-
tion in the Controller page is completed, click OK to accept the changes and return back to the Manual
Mode window.
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Note:
The SVI must have the controller option installed at the factory. With this option
installed, the SVI can be operated as either a positioner or controller, selectable by
ValVue, HART Communicator or the local pushbuttons. (Local pushbuttons support
limited controller functions).
