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
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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)
All Rights Reserved Copyright © 2000, Yokogawa M&C Corporation
ii
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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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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
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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
<Toc> <1. Installation> 1-1
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
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1.2 How to Install
NOTE
To install the controller, select a location where:
1. no one may accidentally touch the terminals,
150mm150mm
150mm
150mm
2. mechanical vibrations are minimal,
3. corrosive gas is minimal,
4. temperature can be maintained at about 23C 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 30from 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
PV
PV2
AL
CAS
REM1
REM2
MAN1
MAN2
STP
3
4
2
1
DISP
SET/ENT
A/M
(25)
(53)
[(N-1)96+92]117 min.
145 min.
+0.8
0
+0.8
0
92
+0.8
0
92
+0.8
0
92
“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
96
96
General installation Side-by-side close installation
1st Edition : May 31,2000-00
1-4
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■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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