YOKOGAWA UT750 User manual

Instruction

Manual

IM 05D01B02-41E

Model UT750

Digital Indicating Controller

User’s Manual for

Single-loop Control

IM 05D01B02-41E

1st Edition

Blank Page

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IM 05D01B02-41E

Introduction

Thank you for purchasing the UT750 digital indicating controller.

■How to Use the Manuals

Purpose Title Description

Setup 1. Installation Describes the tasks (installation, wiring, and others) required

to make the controller ready for operations.

Basic operation

2. Initial Settings Describes examples of setting PV input types, control output

types, and alarm types. Making settings described herein

allows you to carry out basic control.

Brief operation 5.1 Parameter Map Contains the parameter map used as a guideline for setting

parameters.

Function description

and setpoint recording

5.2 Lists of Parameters Briefly describes the functions of parameters. In addition,

each parameter table has a User Setting column, where you

can record your setpoints when setting them in the controller.

Operating

procedures

and troubleshooting

3. Operations

4.1 Troubleshooting

Describes key operation sequences. For operation control

through external contact inputs, see “1.5 Terminal Wiring

Diagrams.”

■Controllers Applicable to Single-loop Control

The specification codes of the UT750 applicable to single-loop control are given in the table

below.

UT750-00

UT750-01

UT750-10

UT750-11

UT750-50

UT750-51

■Regarding This User’s Manual

(1) This manual should be provided to the end user. Keep an extra copy or copies of the

manual in a safe place.

(2) Read this manual carefully to gain a thorough understanding of how to operate this

product before starting operation.

(3) This manual describes the functions of this product. Yokogawa M&C Corporation

(hereinafter simply referred to as Yokogawa) does not guarantee the application of

these functions for any particular purpose.

(4) Under absolutely no circumstances may the contents of this manual, in part or in

whole, be transcribed or copied without permission.

(5) The contents of this manual are subject to change without prior notice.

(6) Every effort has been made to ensure that the details of this manual are accurate.

However, should any errors be found or important information be omitted, please

contact your nearest Yokogawa representative or our sales office.

1st Edition : May 31,2000-00Media No. IM 05D01B02-41E (CD) 1st Edition : May 2000 (YK)

IM 05D01B02-41E 1st Edition : May 31,2000-00

■Safety Precautions

The following symbol is indicated on the controller to ensure safe use.

CAUTION

This symbol on the controller indicates that the operator must refer to an explanation in the

user’s manual in order to avoid the risk of injury or death of personnel or damage to the

instrument. The manual describes how the operator should exercise special care to avoid

electric shock or other dangers that may result in injury or loss of life.

The following symbols are used in the hardcopy user’s manuals and in the user’s manual

supplied on the CD-ROM.

NOTE

Indicates that operating the hardware or software in a particular manner may damage it or

result in a system failure.

IMPORTANT

Draws attention to information that is essential for understanding the operation and/or

features of the controller.

■Regarding Force Majeure

Yokogawa M&C Corporation assumes no liability for any loss or damage, direct or indirect,

caused by the use of or unpredictable defects of the product.

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IM 05D01B02-41E

CONTENTS

1. Installation .............................................................................................. 1-1

1.1 Model and Suffix Codes.................................................................................. 1-1

1.2 How to Install................................................................................................... 1-2

1.3 How to Connect Wires .................................................................................... 1-5

1.4 Hardware Specifications ................................................................................ 1-7

1.5 Terminal Wiring Diagrams ............................................................................ 1-13

2. Initial Settings ......................................................................................... 2-1

2.1 Names and Functions of Front Panel Parts ................................................... 2-2

2.2 Setting PV Input Type (Setting First at Power-on) ......................................... 2-3

2.3 Changing PV Input Type ................................................................................. 2-8

2.4 Setting Control Output Type

(except for a Position Proportional Controller) ........................................... 2-10

2.5 Calibrating Valve Position (for a Position Proportional Controller Only) .. 2-13

2.6 Initializing Parameters .................................................................................. 2-15

2.7 Changing Alarm Type ................................................................................... 2-16

2.8 Description of Multiple Setpoints and PID................................................... 2-19

3. Operations .............................................................................................. 3-1

3.1 Monitoring-purpose Operating Displays Available during Operation ......... 3-1

3.2 Setting Target Setpoint (SP) ........................................................................... 3-4

3.3 Performing/Canceling Auto-tuning ................................................................ 3-5

3.4 Setting PID Manually....................................................................................... 3-7

3.5 Setting Alarm Setpoints .................................................................................. 3-8

3.6 Selecting Target Setpoint Numbers (SPNO) ................................................ 3-10

3.7 Switching between Run and Stop .................................................................3-11

3.8 Switching between AUTO and MAN ............................................................. 3-12

3.9 Manipulating Control Output during Manual Operation ............................. 3-13

3.10 Switching between Remote (REM) and Local (LCL) ................................... 3-15

1st Edition : May 31,2000-00

Model UT750

Digital Indicating Controller

User’s Manual for Single-loop Control

IM 05D01B02-41E 1st Edition

IM 05D01B02-41E

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4. Troubleshooting and Maintenance ........................................................ 4-1

4.1 Troubleshooting .............................................................................................. 4-1

4.2 Maintenance .................................................................................................... 4-5

4.2.1 Cleaning ........................................................................................... 4-5

4.2.2 Replacing Brackets ........................................................................... 4-5

4.2.3 Attaching Terminal Cover .................................................................. 4-5

4.2.4 Replacing Parts with a Limited Service Life ....................................... 4-7

4.2.5 Replacing Control Output Relays ...................................................... 4-8

5. Parameters .............................................................................................. 5-1

5.1 Parameter Map ................................................................................................ 5-1

5.2 Lists of Parameters ......................................................................................... 5-6

6. Function Block Diagram and Descriptions............................................ 6-1

1st Edition : May 31,2000-00

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IM 05D01B02-41E

1. Installation

This chapter describes installation, wiring, and other tasks required to make the

controller ready for operation.

1.1 Model and Suffix Codes

Before using the controller, check that the model and suffix codes match your order.

Model Suffix Code Description

UT750 Digital indicating controller (provided with Custom Computing Function*)

-0 Single-loop type

-1 Position proportional type

-5 Dual-loop type

Type

0 None

1 With communication, remote input

Optional functions

Check that the following items are provided:

• Digital indicating controller (of ordered model) ........................................ 1

• Brackets (mounting hardware) ............................................................... 1 pair

• Unit label................................................................................................ 1

• User’s Manuals for Single-loop Control .................................................. 5 (A2 size)

• User’s Manual (Reference) (CD-ROM version) ...................................... 1

* Using an optional custom computation building tool (Model LL200-E10) that runs on a personal computer, you can

build a variety of computations (e.g., four arithmetic operations, logical operations, ten-segment linearizer computa-

tions, temperature correction factor computations, and pressure correction factor computations) to be applied to the

controller’s I/O signals.

1st Edition : May 31,2000-00

1-2

IM 05D01B02-41E

1.2 How to Install

NOTE

To install the controller, select a location where:

1. no one may accidentally touch the terminals,

150mm150mm

150mm

2. mechanical vibrations are minimal,

3. corrosive gas is minimal,

4. temperature can be maintained at about 23C and

the fluctuation is minimal,

5. no direct radiant heat is present,

6. no magnetic disturbances are caused,

7. no wind blows against the terminal board (reference junction compensation element),

8. no water is splashed,

9. no flammable materials are around,

Never place the controller directly on flammable items or equipment.

If the controller has to be installed close to flammable items or equipment, be sure to

provide shielding panels all around the controller, at least 150 mm away from every side;

the panels should be made of either 1.43 mm-thick metal-plated steel plates or 1.6 mm-

thick uncoated steel plates.

●Installation Position

Install the controller at an angle within 30from horizontal with the front panel facing up-

ward. Do not install it facing downward. The position of right and left sides should be hori-

zontal.

Front panel

of controller Must not

exceed 30°

30°Rear of

controller

1st Edition : May 31,2000-00

<Toc> <1. Installation> 1-3

IM 05D01B02-41E

■External Dimensions and Panel Cutout Dimensions

PV2

CAS

REM1

REM2

MAN1

MAN2

STP

DISP

SET/ENT

A/M

(25)

(53)

[(N-1)96+92]117 min.

145 min.

+0.8

“N”stands for the number of controllers to be

installed.

However, the measured value applies if N  5.

10011

UT750

1 to 10 mm (Panel thickness)

Small bracket

Large bracket

91.8

112

Unit: mm

General installation Side-by-side close installation

1st Edition : May 31,2000-00

1-4

IM 05D01B02-41E

■How to Install

CAUTION

Turn off the power to the controller before installing it on the panel because there is a

possibility of electric shock.

After opening the mounting hole on the panel, follow the procedures below to install the

controller:

1. Insert the controller into the opening from the front of the panel so that the terminal

board on the rear is at the far side.

2. Set the brackets in place on the top and bottom of the controller as shown in the figure

below, then tighten the screws of the brackets. Take care not to overtighten them.

Large bracket

(top mounting hardware)

Terminal board

Small bracket

(bottom mounting hardware)

Panel

Insert a screwdriver into the

brackets to tighten the screws.

Direction to insert the

controller

Insert the controller

into the opening at

the front of the panel.

1st Edition : May 31,2000-00

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