GE LPS-D Instruction Manual page 315

13 XPRESSION BUILDER 13.1 INTRODUCTION
13 XPRESSION BUILDER 13.1 INTRODUCTION 13.1.1 OVERVIEW
The LPS-D relay has been designed to allow flexibility in the operation of contact converter inputs and contact
outputs. The inputs and outputs are not hard-wired to any function; the functions of each input and output are
defined by a software file which is downloaded to the relay as a part of each setting group.
The software file represents the linkage between the contact converters, internally generated protection flags,
and contact outputs; it contains information regarding the logical relationships among each entity. This file is
built using a windows based application called Xpression Builder.
Xpression Builder allows the utility engineer to design the interconnection of the inputs and outputs with Bool-
ean operators, latches, timers, and counters in a graphical environment. The application performs the task of
compiling the design from a graphical format, and allows the engineer to download the file to a relay setting
group with ALPS-Link. Each setting group can contain different Xpression Builder logic. The LPS-D comes with
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a default Configurable Logic implementation.
13.1.2 INSTALLATION
If the LPS-D software suite has been installed from the Products CD or GE Power Management website,
Xpression Builder is probably already installed. To install Xpression Builder by itself from the Products CD or
website, consult the procedure in Section 11.2.4 SOFTWARE INSTALLATION on page 11–4, and choose
Xpression Builder from the LPS-D software menu.
To install the software from the GE Power Management web site enter the following URL in your Web browser:
www.GEindustrial.com/pm
The home page is the same as that shown in Figure 11–2: GE POWER MANAGEMENT WELCOME SCREEN
on page 11–4. Follow the procedure in Section 11.2.4 SOFTWARE INSTALLATION on page 11–4 to continue
the installation.
GE Power Management LPS-D Line Protection System 13-
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