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0 introduction, 1 scope of book, 0 - introduction – Micromod Micro-DCI: 53SL5100A Single Loop Controller User Manual

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Single Loop Process Controller Instruction Manual

Introduction 1

1.0 Introduction

The 53SL5100 Controller is capable of functioning as any one of four selectable application-specific (AS)
instruments. The instrument application is selected with the front panel push buttons by entering the appro-
priate number (1 through 4 respectively) into a designated database location. The four instrument selec-
tions are:

1.

Single Loop (PID) Controller - a PID controller that fulfills the requirements of a majority of
process applications. It is used with other devices in a standard feedback control loop to
automatically control a process variable (PV) at a predetermined setpoint (SP). The
proportional, integral, and derivative (PID) terms can be activated as needed.

2.

Analog Backup Controller - for operations requiring computer backup. It is used where a
remote computer is normally controlling the final element directly. In this configuration, the
controller acts as a control signal selector and as an automatic backup to the computer. The
controller continually adjusts its output to match the feedback signal from the final element so
that transfer to on-line operation is bumpless.

3.

Ratio (PID) Controller - for applications where one variable must automatically be maintained
in definite proportion to another variable. The PID algorithm is executed to maintain a
controlled line at a predetermined proportion to the uncontrolled or wild line.

4.

Automatic/Manual Station - for installations requiring a single station automatic/manual
selector. In Auto, the Auto input is passed directly through the station to the output. In Manual,
the station acts as a manual loader for direct operator control of the process.

Each of the four instrument selections has its own unique display of process attributes (e.g., process vari-
able, output, etc.) as well as a supplemental parameter display that is invoked by pressing a front panel
push button. The parameter display provides quick access to view and/or alter three values such as
% Proportional Band, Reset (integral action), and Rate (derivative action). The instrument is configured at
the factory to display these three values, but the parameter display selections can be altered.

1.1 Scope of Book

Information in this book is presented as text, visuals, and tables. All three are required, but the text has
been minimized wherever possible. The tables provide either summary information or procedural steps to
perform a specific task.

Figure 1-1

illustrates the information layout of this book. The table in the figure summarizes the book sec-

tions that must be referenced as determined by the instrument application (e.g., Single Loop Controller,
etc.), and if the instrument is pre-configured at the factory. Instruments that are not pre-configured at the
factory have a standard factory configuration.

The sections of this book contain the following information:

Section 1, Introduction

: This section contains preliminary product and book information as well

as the product specifications.

Section 2, Installation

: This section provides instrument mounting information, power wiring

instructions, and signal wiring instructions.

Section 3, Front Panel

: This section provides illustrations that describe typical instrument

displays; a general description of the front panel push button functions; and procedures to
display a datapoint, alter a datapoint, default the database, and enter a password key. Also
provided are operating procedures for the Hand-Held Configurer.

Section 4, Configuration Parameters

: This section describes the data format types, the factory

standard configuration selections for the instrument, and presents the database configuration