BECKWITH ELECTRIC M-4272, Instruction Book

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Introduction – 1
1–1
1.1 Instruction Book Contents
This instruction book includes six Chapters and six
Appendices.
Chapter 1: Introduction
Chapter One summarizes the devices’ capabilities,
introduces the instruction book contents and
describes the application of an MBTS.
Chapter 2: Operation
Chapter Two provides the necessary instructions
regarding manual operation of the MBTS. Manual
operation of the MBTS is accomplished by utilizing
either the unit's front panel controls and indicators,
which include the M-3931 Human Machine
Interface (HMI) and M-3972 Status Module or
through the M-3872 ISScom
® Communications and
Oscillographic Analysis Software.
Chapter 3: ISScom
Chapter 3 provides a description of each element of
the M-3872 ISScom Communications and
Oscillographic Analysis Software. The ISScom menu
structure and commands are described in detail for
each feature and function.
Chapter 4: System Setup and Setpoints
Chapter Four is designed for the person(s) responsible
for the direct setting and configuration of the system.
It describes the procedures for entering all required
data into the MBTS. Included in this chapter are
functional and connection diagrams for a typical
application for the system; and describes the
configuration process for the unit (choosing active
functions), output contact assignment and input
1
Introduction
1.1 Instruction Book Contents ......................................................... 1–1
1.2 M-4272 Motor Bus Transfer System (MBTS) ........................... 1–2
1.3 Application .................................................................................. 1–4
blocking designation. It also illustrates the definition
of system quantities and equipment characteristics
required by the MBTS, and describes the individual
function settings.
Chapter 5: Installation
The person or group responsible for the installation
of the MTBS will find herein all mechanical
information required for physical installation,
equipment ratings, and all external connections in
this chapter. For reference, the Three-Line
Connection Diagram is repeated from Chapter 4,
System Setup and Setpoints . Further, a
commissioning checkout procedure is outlined to
check the external CT and VT connections.
Additional tests which may be desirable at the time
of installation are described in Chapter 6,
Testing .
Chapter 6: Testing
This chapter provides step-by-step test procedures
for each function, as well as diagnostic mode and
auto-calibration procedures.
Appendix A: Configuration Record Forms
This Appendix supplies a set of forms to record and
document the settings required for the proper
operation of the MBTS.
Appendix B: Communications
This Appendix describes communication port signals
and various topologies and equipment required for
remote communication.
Appendix C: Self-Test Error Codes
This Appendix lists all the error codes and their
definitions.