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Eurotherm 2704 User Manual

Eurotherm 2704
382 pages
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2700
User
Manual
2704 Process Controller
HA026933/7
Nov 2012

Table of Contents

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Eurotherm 2704 Specifications

General IconGeneral
Control TypePID, On/Off
Input TypesThermocouple, RTD, mA, V
Output TypesRelay
CommunicationModbus
Dimensions96 x 96 mm
Alarms2 programmable alarms
DisplayLED Display
Supply Voltage100-240V AC, 24V AC/DC

Summary

CHAPTER 7 INSTRUMENT CONFIGURATION

7.1 WHAT IS INSTRUMENT CONFIGURATION?

Defines the purpose and scope of instrument configuration.

7.2 TO CONFIGURE CONTROLLER OPTIONS

Guides on enabling and configuring controller options.

7.2.1 INSTRUMENT Options Page

Parameters to enable or disable instrument options like loops, programmer, etc.

7.3 USER TEXT EXAMPLES

Provides examples of renaming loops, alarms, and modules.

CHAPTER 8 PROGRAMMER CONFIGURATION

8.1 WHAT IS SETPOINT PROGRAMMING ?

Explains the concept of setpoint programming and profiles.

8.2 SETPOINT PROGRAMMER DEFINITIONS

Defines key parameters like Run, Hold, Reset, Servo, Hot Start.

8.3 PROGRAMMER TYPES

Discusses Time to Target and Ramp Rate programmer types.

8.4 SEGMENT TYPES

Details the Profile, Go Back To, and End segment types.

8.5 POWER FAIL RECOVERY

Outlines strategies for controller behavior after power restoration.

8.6 HOLDBACK (GUARANTEED SOAK)

Explains how holdback freezes programs to ensure correct soak periods.

8.7 PROGRAM USER VALUES

Describes how user values provide multiplexor facilities for event values.

8.8 EXTERNAL PROGRAM INPUTS

Explains how digital inputs can control program operation.

8.9 PROFILE LOCK

Describes how to lock programs to prevent changes in operation levels.

8.10 EXAMPLE: TO CONFIGURE A SYNCHRONOUS PROGRAMMER

Step-by-step guide to configure a synchronous programmer.

8.11 EXAMPLE: TO CONFIGURE SYNCHRONOUS PROGRAMMER TYPE

Describes how to configure a Ramp Rate type programmer.

8.12 PROGRAMMER WIRING

Explains how to soft wire programmer function blocks to other functions.

8.13 TO CREATE OR EDIT A PROGRAM

Details the process of defining parameters for the overall program.

8.14 EXAMPLE: TO ACCESS THE PROGRAM EDIT PAGES

Guides on accessing the PROGRAM EDIT pages.

8.15 EXAMPLE: TO SET UP EACH SEGMENT OF A PROGRAM

Explains how to set up each segment within a program.

8.16 TO RUN A SYNCHRONOUS PROGRAM

Procedure for running a synchronous program.

8.17 TO HOLD A PROGRAM

Procedure for holding a program.

8.18 TO RESET A PROGRAM

Procedure for resetting a program.

8.19 EXAMPLE: TO VIEW THE STATE OF A RUNNING PROGRAM

How to view the state of digital outputs or times remaining.

8.20 PROGRAMMER WIRING EXAMPLES

Examples of programmer wiring configurations.

8.21 ASYNCHRONOUS PROGRAMMER

Summary of functions available in the asynchronous programmer.

8.22 PROGRAM GROUPS

Explains how to set up and configure Program Groups.

8.23 EXAMPLE: TO CONFIGURE AN ASYNCHRONOUS PROGRAMMER

Step-by-step guide to configure an asynchronous programmer.

8.24 EXAMPLE: TO CONFIGURE ASYNCHRONOUS PROGRAMMER TYPE

How to configure a Ramp Rate type programmer.

8.25 PROFILE SETPOINT PAGES

Pages for configuring and setting up each PSP.

8.26 EXAMPLE: TO SET UP AND RUN PROGRAM GROUPS

Steps to set up and run program groups.

8.27 EXAMPLE: TO COPY A PROGRAM

Procedure for copying a program.

8.28 EXAMPLE: TO INSERT A SEGMENT INTO A PROGRAM

How to insert a segment into a program.

8.29 PROGRAMMER ERROR MESSAGES

Displays error messages for invalid entries during program setup.

8.30 RUNNING AN ASYNCHRONOUS PROGRAMMER

How to run asynchronous programs using PROG button or digital inputs.

8.31 EXAMPLE: TO RUN A PROGRAM USING THE PROG BUTTON

Step-by-step guide to run a program using the PROG button.

CHAPTER 2 INSTALLATION

2.1 MECHANICAL INSTALLATION

Covers positioning and outline dimensions for mounting the controller.

2.2 I/O MODULES

Details the optional plug-in modules for communications and I/O.

2.3 WIRING

Crucial section on electrical connections and rear terminal layout.

2.5 ANALOGUE INPUT CONNECTIONS

Wiring for analogue inputs accepting 0-10Vdc or mA signals.

2.5.5 I/O Expander (or Additional Digital Input)

Details on using an I/O expander for additional digital I/O points.

2.5.6 Digital I/O

Configuration options for standard digital I/O connections.

2.6 OPTIONAL PLUG IN MODULE CONNECTIONS

Covers connections for digital communication modules.

2.7 TO CONNECT ZIRCONIA (DUAL SIGNAL) PROBE

Connects a Zirconia probe to a Dual PV Input module.

CHAPTER 3 OPERATION

3.1 OPERATOR INTERFACE - OVERVIEW

Describes the front panel display and seven operator push buttons.

3.2 PARAMETERS AND HOW TO ACCESS THEM

How parameters are organized into pages and accessed.

3.3 NAVIGATION OVERVIEW

Provides an overview of how to navigate through the controller's menus.

3.5 PARAMETER VALUES

How parameter values are displayed and changed based on type.

3.6 PARAMETER TABLES

Explains the structure and content of parameter tables.

3.7 PARAMETER AVAILABILITY AND ALTERABILITY

Discusses parameter availability and conditions for alteration.

3.8 NAVIGATION DIAGRAM

Visual representation of available pages and navigation paths.

CHAPTER 11 LOOP SET UP

11.1 WHAT IS LOOP SET UP

Explains configuring control loops for various strategies.

11.2 SINGLE LOOP CONTROL

Configuring a simple single loop, single output controller.

11.3 SETPOINT DEFINITION

Defines the controller setpoint and its sourcing alternatives.

11.4 PID CONTROL

Technique for stable control using Proportional, Integral, Derivative terms.

11.5 GAIN SCHEDULING

Automatic transfer of control between PID values in non-linear systems.

11.6 OUTPUT PARAMETERS

Parameters that control the output to the plant.

11.7 MOTORISED VALVE CONTROL

Algorithm for positioning motorised valves.

11.8 DIAGNOSTICS

Provides information on current operating conditions.

11.9 DISPLAY

Configures the Loop Summary display.

11.10 CASCADE CONTROL

Advanced control technique for fast response to disturbances.

11.11 RATIO CONTROL

Controls process variable at a setpoint calculated as a proportion of a lead input.

11.12 OVERRIDE CONTROL

Secondary loop overrides main output to prevent undesirable conditions.

12. CHAPTER 12 TUNING

How to tune the controller for optimal process control.

12.6 CASCADE TUNING

Tuning cascade loops using master and slave controllers.

CHAPTER 13 CONTROLLER APPLICATIONS

13.1 ZIRCONIA - CARBON POTENTIAL CONTROL

Controls temperature and carbon potential using zirconia probes.

13.2 TO VIEW AND ADJUST ZIRCONIA PARAMETERS

How to view and adjust zirconia probe parameters.

13.3 ZIRCONIA WIRING EXAMPLE

Example wiring for zirconia probe connection.

13.4 HUMIDITY CONTROL

Standard feature for humidity and altitude control applications.

13.5 TO VIEW AND ADJUST HUMIDITY PARAMETERS

How to view and adjust humidity control parameters.

13.6 HUMIDITY WIRING EXAMPLE

Example wiring for humidity control loop.

13.7 VACUUM CONTROLLER

Controls vacuum levels for various applications.

13.8 VACUUM CONTROLLER FUNCTIONALITY

Features of the vacuum controller.

13.9 WIRING CONNECTIONS

Wiring depends on modules fitted.

13.10 SWITCH ON

Install, wire, and configure controller, then switch on.

13.11 OPERATION

How to access vacuum controller parameters in access level 3.

13.12 PARAMETER TABLES

Lists parameters available in all levels.

13.13 CONFIGURATION LEVEL

How to choose controller operation, display format, and names.

13.14 VACUUM CONTROLLER WIRING EXAMPLES

Examples of vacuum controller wiring.

CHAPTER 14 INPUT OPERATORS

14.1 WHAT ARE INPUT OPERATORS

Explains how input operators are used for process control.

14.2 CUSTOM LINEARISATION

Applies custom linearisation to inputs for accuracy.

14.3 TO VIEW AND ADJUST INPUT OPERATOR PARAMETERS

How to view and adjust input operator parameters.

14.4 THERMOCOUPLE/PYROMETER SWITCHING

Switches inputs between thermocouple types or pyrometer.

14.5 TO SET UP INPUT OPERATORS (MONITOR)

Sets up monitor parameters for logging excursions and time.

14.6 BCD INPUT

Binary Coded Decimal function block for selecting program numbers.

14.7 INPUT OPERATORS WIRING EXAMPLES

Examples of wiring input operators.

CHAPTER 15 TIMER, CLOCK, TOTALISER, OPERATION

15.1 WHAT ARE TIMER BLOCKS?

Explains how timer blocks use time/date information for control.

15.2 TIMER TYPES

Details the four operating modes for timer blocks.

15.3 TO VIEW AND ADJUST TIMER PARAMETERS

How to configure timer type and set parameters.

15.4 THE CLOCK

Real-time clock for use with timer functions.

15.5 TIME BASED ALARMS

Alarms that allow output on/off at a set time and day.

15.6 TOTALISERS

Used to measure total quantity of a measurement integrated over time.

CHAPTER 16 ADVANCED FUNCTIONS

16.1 PATTERN GENERATOR

Selects groups of digital values from a single input number.

16.2 ANALOGUE SWITCHES

Allows selection of analogue values from an input number.

16.3 USER VALUES

Constants used in analogue or digital operations.

16.4 USER MESSAGES

Pop-up windows displayed as a result of a particular action.

16.5 USER SWITCHES

Similar to User Values but for digital operations.

16.6 CUSTOM ENUMERATIONS

Allows parameter values to be enumerated with custom text.

CHAPTER 17 USER PAGES

17.1 WHAT ARE USER PAGES

Allows placing pre-determined parameters onto semi-custom screens.

17.2 USER PAGE STYLES

Describes eight available screen styles for user pages.

17.3 TO CONFIGURE A USER PAGE

Guides on configuring User Pages, including page location and style.

17.4 AUTO MANUAL OPERATION FROM A USER PAGE

Associates auto/manual operation with the displayed user page.

17.5 USER PAGE PARAMETER TABLES

Parameter tables for different user page types.

CHAPTER 18 ANALOGUE AND MULTIPLE OPERATORS

18.1 WHAT ARE ANALOGUE OPERATORS?

Allows mathematical operations on two input values.

18.2 TO CONFIGURE ANALOGUE OPERATORS

Guides on configuring analogue operators and their parameters.

18.3 MULTIPLE OPERATORS

Performs analogue operations on up to six inputs.

18.4 TO ENABLE MULTI OPERATORS

Enables Analogue and Logic Operators in configuration level.

18.5 TO LOCATE MULTI OPERATOR PARAMETERS

Locates parameters for multi-operators.

CHAPTER 19 LOGIC OPERATORS

19.1 Logic Operations

Lists the logical calculations that can be performed.

19.2 TO CONFIGURE LOGIC OPERATORS

Guides on configuring logic operators and their parameters.

19.3 PATCH WIRING

Allows wiring from any parameter to another.

CHAPTER 20 DIGITAL COMMUNICATIONS

20.1 WHAT IS DIGITAL COMMUNICATIONS?

Explains controller communication with PCs or networked systems.

20.2 TO CONFIGURE COMMUNICATIONS PARAMETERS

Guides on configuring parameters for H and J Modules.

20.3 DIGITAL COMMUNICATIONS DIAGNOSTICS

Monitors message increments and timeouts for comms modules.

20.4 ETHERNET TECHNICAL NOTE

Notes on MAC address, DHCP, instrument setup, and network connection.

20.5 ADDENDUM:- 2704 CONTROLLER SPECIALS NUMBER EU0678

Information specific to controllers with Ethernet communications.

CHAPTER 21 2704 MASTER COMMUNICATIONS

21.1 INTRODUCTION

Objective of master communications for 2704 controller.

21.2 WIRING CONNECTIONS

Wiring for digital communication modules.

21.3 CROSS-BOARD VERSION

Checking cross-board version before configuring master comms.

21.4 BASIC NAVIGATION

Summary of how to navigate through master communications pages.

21.5 TO CONFIGURE PARAMETERS

Steps to configure a transaction between master and slave parameters.

21.6 TO CONFIGURE SLAVES

Steps to configure slave parameters.

CHAPTER 22 STANDARD IO

22.1 WHAT IS STANDARD IO?

Refers to fixed I/O connections and adjustment of limits, filter times, and scaling.

22.2 PV INPUT

Accesses parameters for the fixed Process Variable Input.

22.3 ANALOGUE INPUT

Accesses parameters for the fixed Analogue Input.

22.4 FIXED RELAY OUTPUT

Accesses parameters for the fixed Relay output.

22.5 THE FIXED RELAY OUTPUT PARAMETERS

Parameters to configure the fixed relay output.

22.6 STANDARD IO DIG I/OPARAMETERS

Parameters to set up the fixed digital IO.

22.7 STANDARD IO DIAGNOSTIC PARAMETERS

Inspects status or diagnostics of digital input/IO Expander.

CHAPTER 23 MODULE IO

23.1 WHAT IS MODULE IO?

Explains additional analogue and digital IO provided by plug-in modules.

23.2 MODULE IDENTIFICATION

Shows how to identify fitted modules by their type and slot.

23.3 MODULE IO PARAMETERS

Accesses parameters specific to each fitted module.

23.4 TDS INPUT MODULE

Specific module for TDS measurement.

23.5 MODULE SCALING

How to scale IO modules.

23.6 MODULE IO WIRING EXAMPLES

Examples of wiring different IO modules.

CHAPTER 24 TRANSDUCER SCALING

24.1 WHAT IS TRANSDUCER SCALING?

Software function to offset controller input calibration.

24.2 SHUNT CALIBRATION

Switching a calibration resistor across a measurement bridge.

24.3 LOAD CELL CALIBRATION

Calibrating load cells connected to PV, Analogue, or Module inputs.

24.4 COMPARISON CALIBRATION

Calibrating controller against a second reference instrument.

24.5 AUTO-TARE CALIBRATION

Used for weighing container contents without the container.

24.6 TRANSDUCER SCALING PARAMETERS

Parameters for soft wiring sources for calibration.

CHAPTER 25 IO EXPANDER

25.1 WHAT IS IO EXPANDER?

External unit to increase digital IO points.

25.2 TO CONFIGURE IO EXPANDER

Setting up parameters to determine IO Expander operation.

CHAPTER 26 DIAGNOSTICS

26.1 WHAT IS DIAGNOSTICS?

Provides information on the internal state of the controller.

CHAPTER 27 CALIBRATION

27.1 USER CALIBRATION

Allows instrument calibration against a certified field source.

27.2 PRECAUTIONS

Safety precautions before starting calibration procedures.

27.3 PV INPUT

Calibrating the fixed PV input.

27.4 ANALOGUE INPUT

Calibrates the fixed Analogue Input.

27.5 MODULE I/O

Calibrates DC Output, Relay Output, Triac Output, and Logic Output modules.

27.6 TO RESTORE FACTORY CALIBRATION VALUES

Restores controller calibration to factory default values.

CHAPTER 28 BOILER CONTROL

28.1 INTRODUCTION

Controls water impurities in industrial boilers.

28.2 WHAT IS TDS?

Defines TDS and its measurement in parts per million (PPM).

28.3 HOW IS TDS MEASURED?

Factors influencing electronic TDS measurement.

28.4 TDS FUNCTION BLOCK

Incorporates factors influencing TDS PV derivation.

28.5 BOTTOM BLOWDOWN FUNCTION BLOCK

Removes sludge and precipitated solids from boiler bottom.

28.6 TDS INPUT MODULE

Specific module for TDS measurement.

APPENDIX B SAFETY AND EMC INFORMATION

30.1 SAFETY

Controller complies with European Low Voltage Directive and safety standards.

30.1.1 Electromagnetic compatibility

Conforms to EMC Directive requirements.

30.2 GENERAL

Manual information subject to change; unpacking and storage.

30.3 SERVICE AND REPAIR

Controller has no user serviceable parts; contact supplier for repair.

30.4 INSTALLATION SAFETY REQUIREMENTS

Safety requirements for installation.

APPENDIX C TECHNICAL SPECIFICATION

31.1 ALL ANALOGUE, DUAL AND PV INPUTS

Specifications for analogue, dual, and PV inputs.

31.2 PRECISION PV INPUT / MODULE

Details for precision PV input modules.

31.3 DUAL (PROBE) INPUT MODULE

Specification for dual input modules.

31.4 ANALOGUE INPUT

Specifications for analogue inputs.

31.5 ANALOGUE INPUT MODULE

Specifications for analogue input modules.

31.6 STANDARD DIGITAL I/O

Allocation and types of standard digital I/O.

31.7 DIGITAL INPUT MODULES

Types and allocation of digital input modules.

31.8 DIGITAL OUTPUT MODULES

Types and allocation of digital output modules.

31.9 ANALOGUE OUTPUT MODULES

Types and allocation of analogue output modules.

31.10 TRANSMITTER PSU

Specification for transmitter power supply modules.

31.11 TRANSDUCER PSU

Specification for transducer power supply modules.

31.12 DUAL DC OUTPUT

Specifications for dual DC output modules.

31.13 HIGH RESOLUTION DC OUTPUT

Specifications for high resolution DC output modules.

31.14 POTENTIOMETER INPUT

Specifications for potentiometer input modules.

31.15 TDS MODULE

Specifications for TDS modules.

31.16 4-WIRE RTD INPUT

Specifications for 4-Wire RTD input modules.

31.17 DIGITAL COMMUNICATIONS

Allocation and types of digital communication modules.

APPENDIX D PARAMETER UNITS AND ADDRESSES

32.1 COMMONLY USED PARAMETERS

Lists commonly used parameters with their Modbus addresses.

32.2 PARAMETER UNITS

Lists available parameter units.

32.3 MODULE STATUS MESSAGES

Displays status messages for modules.

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