Hardy HI 1769-FC - Manual (Page 6)

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Chapter 1
Chapter 1 Overview
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This manual provides users and service personnel with specifications and procedures for
installing, configuring, operating, maintaining, and troubleshooting the Hardy HI 1769-
FC Rate Controller with WAVERSAVER®, C2®, and INTEGRATED TECHNICIAN
(IT®) diagnostics.
The module is configurable via ladder logic. The HI 1769-FC module lock with other
modules by means of a tongue and groove design and have integrated communication bus
that is connected from module to module by a movable bus connector.
To ensure good performance and maximum service life, follow all guidelines described
in this manual. Be sure you understand all cautions, warnings, and safety procedures. If
you find that the information in this manual does not provide the help you need, contact
the Hardy Customer Service Department at:
Phone: (858) 278-2900
FAX: (858) 278-6700
Web Site: www.hardysolutions.com
Support e-mail address: [email protected]
About Hardy Manuals
An overview of each chapter’s contents is listed below:
 Chapter One - Provides an overview of HI 1769-FC capabilities and features
 Chapter Two - Provides an overview of HI 1769-FC specifications
 Chapter Three - Describes the steps for installing both the standard and optional HI
1769-FC equipment and the HI 215IT series junction box
 Chapter Four - Explains how to configure the HI 1769-FC
 Chapter Five - Provides calibration instructions
 Chapter Six –
Provides troubleshooting procedures for repair of the HI 1769-FC
Hardy hopes that this manual meets your needs for information and operation. All
corrections or suggestions for improvements of this manual are welcome and can be sent
to the Technical Publications Department or Customer Support Department at Hardy
Process Solutions, Inc.
HI 1769-FC Overview
The HI 1769-FC module is a self-contained, microprocessor-based CompactLogix® and
MicroLogix® 1500 I/O module . Its control inputs and outputs will easily plug into the
backplane of an Allen-Bradley CompactLogix and MicroLogix 1500 programmable
controller.
The HI 1769-FC is a loss-in-weight controller that measures the flow rate from a feeding
device located on a process weighing scale. The user enters the flow parameters, and an
HI 1769-FC algorithm automatically calculates and adjusts the tuning parameters needed
to maintain the desired rate. After comparing the desired flow rate to the actual flow rate
(measured by calculating the loss of weight over short intervals), it computes the
adjustments needed to achieve the desired rate and transmits signals to adjust the speed of
the feeding device.