Yokogawa UT35A, UT32A Operating Manual

User’s
Manual	UT35A/UT32A
	Digital Indicating Controllers
	User’s Manual
			IM 05P01D31-01EN

IM 05P01D31-01EN

1st Edition

Product Registration

Thank you for purchasing YOKOGAWA products.

YOKOGAWA provides registered users with a variety of information and services. Please allow us to serve you best by completing the product registration form accessible from our homepage.

http://www.yokogawa.com/ns/reg/

Introduction

Thank you for purchasing the UT35A/UT32A digital indicating controller (hereinafter referred to as UT35A/UT32A).

This manual describes how to use UT35A/UT32A functions other than UT35A/UT32A’s communication function and ladder sequence function. Please read through this user’s manual carefully before using the product.

Note that the manuals for the UT35A/UT32A comprise the following six documents:

● Printed manual

	Manual Name	Manual Number	Description
	UT35A/UT32A	IM 05P01D31-11EN	This manual describes the basic operation
	Operation Guide		method.

● Electronic manuals

	Manual Name	Manual Number	Description
	UT35A/UT32A	IM 05P01D31-11EN	This is identical to the printed manual.
	Operation Guide
	UT35A/UT32A		This manual. It describes the usage of all
		IM 05P01D31-01EN	functions except the ladder sequence and
	User’s Manual
			communication functions.
	UTAdvanced Series		This manual describes how to use UT35A/
	Communication Interface	IM 05P07A01-01EN	UT32A in Ethernet and serial communications.
	(RS-485, Ethernet)		For communication wiring, see the Operation
	User’s Manual		Guide or User’s Manual.
	UTAdvanced Series		This manual describes how to use UT35A/
	Communication Interface	IM 05P07A01-02EN	UT32A in PROFIBUS-DP communications. For
	(PROFIBUS-DP)		communication wiring, see the Operation Guide
	User’s Manual		or User’s Manual.
	LL50A Parameter Setting		This manual describes how to install and
	Software Installation	IM 05P05A01-01EN
			uninstall the LL50A.
	Manual
			This manual describes how to use the LL50A,
	LL50A Parameter Setting	IM 05P05A01-02EN	ladder sequence function, peer-to-peer
	Software User’s Manual		communication, and network profile creating
			function.

* User’s Manual can be downloaded from a website.

Target Readers

This guide is intended for the following personnel;

●Engineers responsible for installation, wiring, and maintenance of the equipment.

●Personnel responsible for normal daily operation of the equipment.

Notice

●The contents of this manual are subject to change without notice as a result of continuing improvements to the instrument’s performance and functions.

●Every effort has been made to ensure accuracy in the preparation of this manual.

Should any errors or omissions come to your attention, however, please inform

Yokogawa Electric’s sales office or sales representative.

●Under no circumstances may the contents of this manual, in part or in whole, be transcribed or copied without our permission.

1st Edition : Jan. 2010 (YK)

All Rights Reserved, Copyright © 2010 Yokogawa Electric Corporation

IM 05P01D31-01EN

Trademarks

●Our product names or brand names mentioned in this manual are the trademarks or registered trademarks of Yokogawa Electric Corporation (hereinafter referred to as YOKOGAWA).

●Microsoft, MS-DOS, Windows, Windows XP, and Windows Vista are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.

●Adobe, Acrobat, and Postscript are either registered trademarks or trademarks of

Adobe Systems Incorporated.

●Ethernet is a registered trademark of XEROX Corporation in the United States.

●Modbus is a registered trademark of Schneider Electric.

●PROFIBUS-DP is a registered trademark of PROFIBUS User Organization.

●We do not use the TM or ® mark to indicate these trademarks or registered trademarks in this user’s manual.

●All other product names mentioned in this user’s manual are trademarks or registered trademarks of their respective companies.

Safety Precautions

This instrument is a product of Installation Category II of IEC/EN/CSA/UL61010-1 Safety Standards and Class A of EN61326-1, EN55011 (EMC Standards).

CAUTION

This instrument is an EMC class A product. In a domestic environment, this product may cause radio interference in which case the user needs to take adequate measures.

The instrument is a product rated Measurement Category I (CAT.I). * Measurement Category I (CAT.I)

This category applies to electric equipment that measures a circuit connected to a low-voltage facility and receives power from stationary equipment such as electric switchboards.

To use the instrument properly and safely, observe the safety precautions described in this user’s manual when operating it. Use of the instrument in a manner not prescribed herein may compromise protection features inherent in the device. We assume no liability for or warranty on a fault caused by users’ failure to observe these instructions.

This instrument is designed to be used within the scope of Measurement Category I (CAT. I) and is dedicated for indoor use.

Notes on the User’s Manual

•This user’s manual should be readily accessible to the end users so it can be referred to easily. It should be kept in a safe place.

•Read the information contained in this manual thoroughly before operating the product.

•The purpose of this user’s manual is not to warrant that the product is well suited to any particular purpose, but rather to describe the functional details of the product.

ii	IM 05P01D31-01EN

Safety, Protection, and Modification of the Product

The following symbols are used in the product and user’s manuals to indicate safety precautions:

“Handle with Care” (This symbol is attached to the part(s) of the product to indicate that the user’s manual should be referred to in order to protect the operator and the instrument from harm.)

AC

AC/DC

The equipment wholly protected by double insulation or reinforced insulation.

Functional grounding terminal (Do not use this terminal as a protective grounding terminal.)

•In order to protect the system controlled by this product and the product itself, and to ensure safe operation, observe the safety precautions described in this user’s

manual. Use of the instrument in a manner not prescribed herein may compromise the product’s functions and the protection features inherent in the device. We assume no liability for safety, or responsibility for the product’s quality, performance or functionality should users fail to observe these instructions when operating the product.

•Installation of protection and/or safety circuits with respect to a lightning protector; protective equipment for the system controlled by the product and the product itself; foolproof or failsafe design of a process or line using the system controlled by the product or the product itself; and/or the design and installation of other protective and safety circuits are to be appropriately implemented as the customer deems necessary.

•Be sure to use the spare parts approved by YOKOGAWA when replacing parts or consumables.

•This product is not designed or manufactured to be used in critical applications that directly affect or threaten human lives. Such applications include nuclear power equipment, devices using radioactivity, railway facilities, aviation equipment, air navigation facilities, aviation facilities, and medical equipment. If so used, it is the user’s responsibility to include in the system additional equipment and devices that ensure personnel safety.

•Modification of the product is strictly prohibited.

WARNING

●Power Supply

Ensure that the instrument’s supply voltage matches the voltage of the power supply before turning ON the power.

●Do Not Use in an Explosive Atmosphere

Do not operate the instrument in locations with combustible or explosive gases or steam. Operation in such environments constitutes an extreme safety hazard.

Use of the instrument in environments with high concentrations of corrosive gas (H2S, SOX, etc.) for extended periods of time may cause a failure.

●Do Not Remove Internal Unit

The internal unit should not be removed by anyone other than YOKOGAWA’s service personnel. There are dangerous high voltage parts inside. Additionally, do not replace the fuse by yourself.

●Damage to the Protective Construction

Operation of the instrument in a manner not specified in this user’s manual may damage its protective construction.

IM 05P01D31-01EN

iii

Warning and Disclaimer

•YOKOGAWA makes no warranties regarding the product except those stated in the WARRANTY that is provided separately.

•The product is provided on an “as is” basis. YOKOGAWA assumes no liability to any person or entity for any loss or damage, direct or indirect, arising from the use of the product or from any unpredictable defect of the product.

Notes on Software

•YOKOGAWA makes no warranties, either expressed or implied, with respect to the software’s merchantability or suitability for any particular purpose, except as specified in the terms of the separately provided warranty.

•This software may be used on one specific machine only.

•To use the software on another machine, the software must be purchased again separately.

•It is strictly prohibited to reproduce the product except for backup purposes.

•Store the software CD-ROM (the original medium) in a safe place.

•All reverse-engineering operations, such as reverse compilation or the reverse assembly of the product are strictly prohibited.

•No part of the product’s software may be transferred, converted, or sublet for use by any third party, without prior written consent from YOKOGAWA.

Handling Precautions for the Main Unit

•The instrument comprises many plastic components. To clean it, wipe it with a soft, dry cloth. Do not use organic solvents such as benzene or thinner for cleaning, as discoloration or deformation may result.

•Keep electrically charged objects away from the signal terminals. Not doing so may cause the instrument to fail.

•Do not apply volatile chemicals to the display area, operation keys, etc. Do not leave the instrument in contact with rubber or PVC products for extended periods. Doing so may result in failure.

•If the equipment emits smoke or abnormal smells or makes unusual noises, turn OFF the instrument’s power immediately and unplug the device. In such an event, contact your sales representative.

Checking the Contents of the Package

Unpack the box and check the contents before using the product. If the product is different from that which you have ordered, if any parts or accessories are missing, or if the product appears to be damaged, contact your sales representative.

UT35A/UT32A Main Unit

The UT35A/UT32A main units have nameplates affixed to the side of the case.

Check the model and suffix codes inscribed on the nameplate to confirm that the product received is that which was ordered.

No. (Instrument number)

When contacting your sales representative, inform them of this number, too.

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Model and Suffix Codes of UT35A

[Style:S1]

						Optional
Model		Suffix code				suffix	Description
						code
UT35A							Digital Indicating Controller (provided with retransmission output or 15 V DC
							loop power supply, 2 DIs, and 3 DOs) (Power supply: 100-240 V AC)
Type 1:	-0						Standard type
Basic	-1						Position proportional type
control	-2						Heating/cooling type
Type 2:		0					None
		1					2 additional DIs, 2 additional DOs
Functions
		2					5 additional DIs, 5 additional DOs
Type 3:			0				None
			1				RS-485 communication (Max.38.4 kbps, 2-wire/4-wire)
Open networks			2				Ethernet communication (with serial gateway function)
			4				PROFIBUS-DP communication
				-10			English
Display language (*1)				-20			German
				-30			French
				-40			Spanish
Fixed code					-00		Always "-00"
						/LP	24 V DC loop power supply (*2)
Optional suffix codes						/HA	Heater break alarm (*3)
						/DC	Power supply 24 V AC/DC
						/CT	Coating (*4)

					*1:		English, German, French, and Spanish can be displayed as the guide display.
					*2:		The /LP option can be specified in the combination of Type 2 code (any of "0" or "1") and
							Type 3 code (any of "0" or "1".)
					*3:		The /HA option can be specified when the Type 1 code is "-0" or "-2."
					*4:		When the /CT option is specified, the UT35A does not conform to the safety standards (UL
							and CSA) and CE marking.
Model and Suffix Codes of UT32A
									[Style:S1]
								Optional
	Model		Suffix code					suffix	Description
								code
	UT32A								Digital Indicating Controller (provided with retransmission output or 15 V DC
									loop power supply, 2 DIs, and 3 DOs) (Power supply: 100-240 V AC)
	Type 1:	-0							Standard type
	Basic	-1							Position proportional type
	control	-2							Heating/cooling type
	Type 2:		0						None
			1						RS-485 communication (Max. 38.4 kbps, 2-wire/4-wire)
	Functions
			2						2 additional DIs and 2 additional DOs
	Type 3:			0					None
	Open networks
					-10				English
	Display language (*1)				-20				German
					-30				French
					-40				Spanish
	Fixed code					-00			Always "-00"
								/LP	24 V DC loop power supply (*2)
	Optional suffix codes							/HA	Heater break alarm (*3)
								/DC	Power supply 24 V AC/DC
								/CT	Coating (*4)
					*1:		English, German, French, and Spanish can be displayed as the guide display.
					*2:		The /LP option can be specified in the combination of Type 1 code (any of "-0" or "-1")
							and Type 2 code (any of "0" or "1.") Additionally, when the Type 2 code is "1", the RS-485
							communication is 2-wire system.
					*3:		The /HA option can be specified when the Type 1 code is "-0" or "-2."
					*4:		When the /CT option is specified, the UT32A does not conform to the safety standards (UL
							and CSA) and CE marking.

IM 05P01D31-01EN

Coating Treatment

(1)HumiSeal coating treatment

Apply HumiSeal coating to the printed circuit board assembly.

Do not apply HumiSeal coating to the following parts: connector, gold-plated contact area, relay part, RJC device, and in the vicinity of the push switch/LED lamp.

(2)Apply terminal coating to the gold-plated contact area on the printed circuit board.

Notes

▪There are two treatments as described above, but we do not guarantee their effectiveness.

We do not supply any test data on these treatments.

▪Do not apply any treatment to the screw terminal area on the back side of the instrument.

vi	IM 05P01D31-01EN

Accessories

The product is provided with the following accessories according to the model and suffix codes. Check that none of them are missing or damaged.

1			2
3
4
No.	Product Name	Quantity	Remark

1	Brackets	2	For fixing the upper and lower parts
2	Unit label	1	Part number: L4502VZ
3	Tag label	1	Part number: L4502VE
4	Operation Guide	1	A3 size, x 6

Accessory (sold separately)

The following lists an accessory sold separately.

• LL50A Parameter Setting Software

Model	Suffix code	Description
LL50A	-00	Parameter Setting Software

• Terminal cover

For UT35A, Model: UTAP001 For UT32A, Model: UTAP002

For UT35A

For UT32A

•User’s Manual (A4 size)

*User’s Manual can be downloaded from a website.

•User’s Manual (CD-ROM), Model: UTAP003

*Contains all manuals.

IM 05P01D31-01EN

vii

Symbols Used in This Manual

This symbol is used on the instrument. It indicates the possibility of injury to the user or damage to the instrument, and signifies that the user must refer to the user’s manual for special instructions. The same symbol is used in the user’s manual on pages that the user needs to refer to, together with the term “WARNING” or “CAUTION.”

WARNING

Calls attention to actions or conditions that could cause serious or fatal injury to the user, and indicates precautions that should be taken to prevent such occurrences.

CAUTION

Calls attention to actions or conditions that could cause injury to the user or damage to the instrument or property and indicates precautions that should be taken to prevent such occurrences.

Note

Identifies important information required to operate the instrument.

Indicates related operations or explanations for the user’s reference.

[ ] Indicates a character string displayed on the display.

Setting Display

Indicates a setting display and describes the keystrokes required to display the relevant setting display.

Setting Details

Provides the descriptions of settings.

Description

Describes restrictions etc. regarding a relevant operation.

viii	IM 05P01D31-01EN

How to Use This Manual

For the ladder sequence and communication functions, see the respective manuals. This user’s manual is organized into Chapters 1 to 19 as shown below. This manual mainly uses the illustrations of the UT35A for describing the operations and functions. The basic operations are the same for the UT32A, so please read them in the same way.

Chapter

Title and Description

1Introduction to Functions

Describes the main functions of the UT35A/UT32A.

2UT35A/UT32A Operating Procedures

Describes the flow from unpacking to regular operations.

3Part Names

Describes part names and functions on the front panel.

4Basic Operation

Describes basic operation of the UT35A/UT32A.

5Quick Setting Function

Describes the minimum necessary settings for operation.

6Monitoring and Control of Regular Operations

Describes monitoring displays of regular operations and operation.

7Input (PV) Functions

Describes PV input.

8Control Functions

Describes basic control and advanced control.

9Auxiliary Control Functions

Describes auxiliary control functions

10Output (Control and Retransmission) Functions

Describes output functions.

11Alarm Functions

Describes alarm output and status output.

12Contact Input/Output Functions

Describes contact input/output functions.

13Display, Key, and Security Functions

Describes display, user function key and security functions.

14Parameter Initialization

Describes the initialization to factory default values and to user default values.

Power Failure Recovery Processing/Power Frequency Setting/Other Settings

15Describes operations performed after momentary power interruption and power failures.

16Troubleshooting, Maintenance, and Inspections

Describes troubleshooting, maintenance, periodic inspections, and disposal.

17Installation and Wiring

Describes installation and wiring.

18Parameters

Provides parameter maps.

19Specifications

Provides the UT35A/UT32A specifications.

IM 05P01D31-01EN

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Blank Page

Contents

	Introduction............................................................................................................................	i
	Target Readers......................................................................................................................	i
	Notice .................................................................................................................................	i
	Trademarks...........................................................................................................................	ii
	Safety Precautions................................................................................................................	ii
	Handling Precautions for the Main Unit...............................................................................	iv
	Checking the Contents of the Package................................................................................	iv
	Model and Suffix Codes of UT35A........................................................................................	v
	Model and Suffix Codes of UT32A........................................................................................	v
	Symbols Used in This Manual............................................................................................	viii
	How to Use This Manual......................................................................................................	ix
Chapter 1 Introduction to Functions
1.1	Quick Setting Function......................................................................................................	1-1
1.2	Input/Output Function.......................................................................................................	1-2
1.3	Control Functions..............................................................................................................	1-4
1.4	Display and Key Functions...............................................................................................	1-6
1.5	Ladder Sequence Function...............................................................................................	1-7
1.6	Communication Functions................................................................................................	1-8
1.7	Definition of Main Symbols and Terms.............................................................................	1-11
Chapter 2 UT35A/UT32A Operating Procedures
2.1	UT35A/UT32A Operating Procedures...............................................................................	2-1
Chapter 3 Part Names
3.1	Names and Functions of Display Parts.............................................................................	3-1
3.2	Names and Functions of Keys..........................................................................................	3-4
3.3	List of Display Symbols.....................................................................................................	3-7
3.4	Brief Description of Setting Details (Parameters)...............................................................	3-9
Chapter 4 Basic Operation
4.1	Overview of Display Switch and Operation Keys....................................................................	4-1
4.2	How to Set Parameters.....................................................................................................	4-4
Chapter 5 Quick Setting Function
5.1	Setting Using Quick Setting Function...............................................................................	5-1
	Flowchart of Quick Setting Function.....................................................................................	5-2
5.2	Restarting Quick Setting Function....................................................................................	5-6
Chapter 6 Monitoring and Control of Regular Operations
6.1	Monitoring and Control of Operation Displays..................................................................	6-1
	6.1.1 Operation Display Transitions.............................................................................	6-1
	Standard Type......................................................................................................................	6-1
	Position Proportional Type...................................................................................................	6-2
	Heating/cooling Type............................................................................................................	6-3
	Two-position two-level control..............................................................................................	6-4
6.2	Setting Target Setpoint......................................................................................................	6-9
	Operation in the Operation Display......................................................................................	6-9
	Operation in Parameter Setting Display.............................................................................	6-10
6.3	Performing and Canceling Auto-tuning............................................................................	6-11
6.4	Adjusting PID Manually...................................................................................................	6-14
IM 05P01D31-01EN		xi

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App

Index

Contents

6.5	Setting Alarm Setpoint....................................................................................................	6-20
6.6	Selecting Target Setpoint Number (SPNO).....................................................................	6-21
6.7	Switching Operation Modes............................................................................................	6-22
	6.7.1 Switching between AUTO and MAN..................................................................	6-22
	6.7.2 Switching between STOP and RUN..................................................................	6-24
	6.7.3 Switching between REM (Remote) and LCL (Local).........................................	6-26
6.8	Manipulating Control Output during Manual Operation........................................................................	6-28
6.9	Releasing On-State (Latch) of Alarm Output..................................................................	6-29

Chapter 7 Input (PV) Functions

7.1	Setting Functions of PV Input...........................................................................................		7-1
	7.1.1	Setting Input Type, Unit, Range, Scale, and Decimal Point Position...................	7-1
	7.1.2	Setting Burnout Detection for Input.....................................................................	7-3

7.1.3Setting Reference Junction Compensation (RJC) or External Reference

	Junction Compensation (ERJC)..........................................................................	7-4
7.1.4	Correcting Input Value.........................................................................................	7-5
	(1) Setting Bias and Filter.....................................................................................................	7-5
7.1.5	Setting Ratio Bias................................................................................................	7-6

Chapter 8 Control Functions

8.1	Control Function Block Diagrams.....................................................................................		8-1
	8.1.1 Single-loop Control, Heating/cooling Control, Position Proportional Control,
		and Two-position Two-level Control.....................................................................	8-1
		n Single-loop Control Function Block Diagram....................................................................	8-2
		n Heating/cooling Control Function Block Diagram.............................................................	8-4
		n Position Proportional Control Function Block Diagram.....................................................	8-6
		n Two-position Two-level Control Function Block Diagram..................................................	8-8
8.2	Setting Control Type (CNT).............................................................................................		8-10
	8.2.1	PID Control.........................................................................................................	8-11
	8.2.2 ON/OFF Control (1 point of hysteresis / 2 points of hysteresis)........................		8-12
	8.2.3	Heating/cooling Control.....................................................................................	8-14
	8.2.4	Two-position Two-level Control..........................................................................	8-20
	8.2.5 PD Control (Stable Control in Which a Setpoint is not Exceeded)....................		8-22
8.3	Setting PID Control Mode (ALG).....................................................................................		8-23
8.4	Switching PID..................................................................................................................		8-25
	8.4.1 Switching PID According to Target Setpoint Number (SPNO)...........................		8-25
	8.4.2 Switching PID According to PV.........................................................................		8-26
	8.4.3 Switching PID According to SP..........................................................................		8-28
	8.4.4 Switching PID According to Target SP...............................................................		8-30
	8.4.5 Switching PID According to Deviation (Reference Deviation)...........................		8-32
	8.4.6 Setting Hysteresis at Time of PID Switch..........................................................		8-33
8.5	Suppressing Overshoot (Super Function).......................................................................		8-34
8.6	Suppressing Hunting (Super2 Function).........................................................................		8-36
8.7	Suppressing Integral Action (Anti-reset Wind-up)...................................................................		8-38
8.8	Adjusting Auto-tuning Operation ....................................................................................		8-39

Chapter 9 Auxiliary Control Functions

9.1	Setting SP Limiter.............................................................................................................	9-1
9.2	Changing SP at a Fixed Rate (SP Ramp-Rate Setting Function).....................................	9-2
9.3	Forcing SP to Track PV (PV Tracking)..............................................................................	9-4
9.4	Forcing SP to Track Remote Input (SP Tracking)................................................................	9-5
9.5	Setting Controller Action at Power ON (Restart Mode).........................................................................	9-6
9.6	Setting Time between Powering on Controller and Starting Control (Restart Timer)........	9-7
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			Contents
Chapter 10 Output (Control and Retransmission) Functions
10.1	Setting Control Output Type............................................................................................		10-1
10.2	Setting Control Output Cycle Time..................................................................................		10-5
10.3	Setting Limiter to Control Output.....................................................................................		10-6
10.4	Disabling Output Limiter in MAN mode...........................................................................		10-7
10.5	Setting Velocity Limiter to Control Output.......................................................................		10-8
10.6	Reducing 4-20 mA Current Output to 0 mA (Tight Shut Function)..................................		10-9
10.7	Setting ON/OFF Control Hysteresis..............................................................................		10-10
10.8	Canceling Offset of PV and SP (Manual Reset)...........................................................		10-12
10.9	Setting Hysteresis and Dead Band for Heating/cooling Control Output........................		10-13
10.10	Setting Hysteresis and Dead Band for Position Proportional Control Output...............		10-15
10.11	Setting Retransmission Output Terminal, Type, and Scales.........................................		10-16
10.12	Setting Preset Output Value..........................................................................................		10-18
	10.12.1 Setting Output Value in STOP Mode (Preset Output).....................................		10-18
	10.12.2 Setting Output Value When Switched to MAN Mode (Manual Preset Output)..........		10-20
	10.12.3 Setting Output Value When Error Occurs (Input Error Preset Output)............		10-21
10.13	Changing Current Output Range..................................................................................		10-22
10.14	Adjusting Motor-operated Valve Position (Position Proportional Output)......................		10-23
	10.14.1 Setting Valve Operation Mode.........................................................................		10-24
	10.14.2 Adjusting Valve Position Automatically............................................................		10-24
	10.14.3 Adjusting Valve Position Manually...................................................................		10-25
	10.14.4 Setting Valve Traveling Time (Estimating Type)..............................................		10-26
	10.14.5 Selecting Feedback Input (Resistor/Current)..................................................		10-26
10.15	Using 15 V DC Loop Power Supply..............................................................................		10-27
Chapter 11 Alarm Functions
11.1	Setting Alarm Type...........................................................................................................		11-1
11.2	Setting Number of Alarm Groups to Use........................................................................		11-13
11.3	Setting Hysteresis to Alarm Operation...........................................................................		11-14
11.4	Delaying Alarm Output (Alarm Delay Timer)..................................................................		11-15
11.5	Setting Alarm Output to Control Relay Terminal.............................................................		11-16
11.6	Setting Alarm Action According to Operation Mode.......................................................		11-17
11.7	Setting Heater Break Alarm...........................................................................................		11-18
Chapter 12 Contact Input/Output Functions
12.1	Setting Contact Input Function........................................................................................		12-1
	12.1.1 Setting Contact Input Function..........................................................................		12-1
	12.1.2 Changing Contact Type of Contact Input...........................................................		12-9
12.2	Setting Contact Output Function...................................................................................		12-10
	12.2.1 Setting Function of Contact Output.................................................................		12-10
	12.2.2 Changing Contact Type of Contact Output......................................................		12-14
Chapter 13 Display, Key, and Security Functions
13.1	Setting Display Functions...............................................................................................		13-1
	13.1.1 Setting Active Color PV Display Function..........................................................		13-1
	13.1.2 Masking Arbitrary Display Value in Operation Display.......................................		13-4
	13.1.3 Registering SELECT Display (Up to 5 Displays)...............................................		13-5
	13.1.4	Changing Event Display....................................................................................	13-6
	13.1.5 Registering SELECT Parameter Display (Up to 10 Displays)...........................		13-8
	13.1.6 Setting Bar-graph Display Function.................................................................		13-10
	13.1.7 Masking Least Significant Digit of PV Display.................................................		13-12
	13.1.8	Setting Economy Mode...................................................................................	13-13
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19 App Index

Contents

		13.1.9	Selecting the Initial Operation Display that Appears at Power ON..................	13-14
		13.1.10	Setting Message Function...............................................................................	13-15
		13.1.11	Switching Guide Display Language.................................................................	13-15
		13.1.12	Changing Guide Scroll Speed.........................................................................	13-16
		13.1.13	Turning Guide Display ON/OFF......................................................................	13-16
		13.1.14	Setting Automatic Return to Operation Display...............................................	13-16
		13.1.15 Setting Brightness and Contrast Adjustment of LCD and Display Update Cycle..		13-17
	13.2	Assigning Function to User Function Key and A/M Key................................................		13-18
	13.3	Setting Security Functions............................................................................................		13-21
		13.3.1	Setting a Password.........................................................................................	13-21
		13.3.2	Setting Parameter Display Level.....................................................................	13-21
		13.3.3	Locking (Hiding) Parameter Menu Display......................................................	13-22
		13.3.4	Key Lock..........................................................................................................	13-23
		13.3.5	Setting Display/Non-display of Operation Display...........................................	13-23
		13.3.6	Prohibiting Writing via Communication............................................................	13-24
	13.4	Confirmation of Key and I/O Condition and Version.....................................................		13-25
		13.4.1	Confirmation of Key and I/O Condition............................................................	13-25
		13.4.2	Confirmation of Version...................................................................................	13-28
Chapter 14	Parameter Initialization
	14.1	Initializing Parameter Settings to Factory Default Values...............................................		14-1
	14.2	Registering and Initializing User Default Values.............................................................		14-2
		14.2.1	Registering as User Setting (Default) Values....................................................	14-2
		14.2.2	Initializing to User Setting (Default) Values.......................................................	14-2
Chapter 15 Power Failure Recovery Processing / Power Frequency Setting /
	Other Settings
	15.1	Remedies if Power Failure Occurs during Operations....................................................		15-1
	15.2	Power Frequency Setting................................................................................................		15-2
Chapter 16 Troubleshooting, Maintenance, and Inspections
	16.1	Troubleshooting..............................................................................................................		16-1
		16.1.1	Troubleshooting Flowchart................................................................................	16-1
		16.1.2	Errors at Power On............................................................................................	16-2
		16.1.3	Errors during Operation.....................................................................................	16-4
	16.2	Maintenance.................................................................................................................		16-15
		16.2.1	Cleaning..........................................................................................................	16-15
		16.2.2	Packaging when Shipping the Product for Repair...........................................	16-15
		16.2.3	Replacing Parts...............................................................................................	16-15
	16.3	Periodic Maintenance ..................................................................................................		16-16
	16.4	Disposal........................................................................................................................		16-17
Chapter 17	Installation and Wiring
	17.1	Installation Location........................................................................................................		17-1
	17.2	Mounting Method............................................................................................................		17-3
	17.3	External Dimensions and Panel Cutout Dimensions....................................................................		17-4
	17.4	Wiring..............................................................................................................................		17-5
		17.4.1	Important Information on Wiring........................................................................	17-5
		17.4.2	PV Input Wiring.................................................................................................	17-7
		17.4.3	Control Output (Relay, Current, and Voltage Pulse) Wiring...............................	17-8
		17.4.4	Valve Position Output and Feedback Input Wiring..........................................	17-10
		17.4.5	Contact Input Wiring.........................................................................................	17-11
		17.4.6	Contact Output Wiring.....................................................................................	17-13
xiv			IM 05P01D31-01EN

		Contents
17.4.7	Retransmission Output Wiring ........................................................................	17-14
17.4.8	15 V DC Loop Power Supply Wiring...............................................................	17-15
17.4.9	24 V DC Loop Power Supply Wiring...............................................................	17-15
17.4.10	Heater Break Alarm Wiring..............................................................................	17-16
17.4.11	RS-485 Communication Interface Wiring........................................................	17-17
17.4.12	Coordinated Operation Wiring.........................................................................	17-18
17.4.13	Peer-to peer Communication Wiring...............................................................	17-19
17.4.14	Ethernet Communication Interface Wiring.......................................................	17-20
17.4.15	PROFIBUS-DP Communication Interface Wiring............................................	17-22
17.4.16 Power Supply Wiring.......................................................................................		17-24
17.5 Attaching and Detaching Terminal Cover......................................................................		17-25

Chapter 18 Parameters

18.1	Parameter Map...............................................................................................................		18-1
18.2	List of Parameters...........................................................................................................		18-8
	18.2.1	Operation Parameters.......................................................................................	18-8
	18.2.2	Setup Parameters...........................................................................................	18-15

Chapter 19 Specifications

19.1 Hardware Specifications.................................................................................................		19-1
19.1.1	Input Specifications...........................................................................................	19-2
19.1.2	Analog Output Specifications............................................................................	19-3
19.1.3	Step Response Time Specifications..................................................................	19-4
19.1.4	Relay Contact Output Specifications.................................................................	19-4
19.1.5	Position Proportional Output Specifications......................................................	19-4
19.1.6	Retransmission Output Specifications...............................................................	19-4
19.1.7	15 V DC Loop Power Supply Specifications.....................................................	19-4
19.1.8	Contact Input Specifications..............................................................................	19-5
19.1.9	Transistor Contact Output Specifications..........................................................	19-5
19.1.10	Heater Break Alarm Specifications....................................................................	19-5
19.1.11	24 V DC Loop Power Supply Specifications.....................................................	19-5
19.1.12	Safety and EMC Standards...............................................................................	19-6
19.1.13	Construction, Installation, and Wiring................................................................	19-6
19.1.14	Power Supply Specifications and Isolation .......................................................	19-7
19.1.15	Environmental Conditions.................................................................................	19-8

Appendix Input and Output Table................................................................................

Appendix 1 Input and Output Table..........................................................................................App-1

Revision Information

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8

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14

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19 App Index

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Chapter 1 Introduction to Functions

1.1Quick Setting Function

The Quick setting function is a function to easily set the basic function of the controller.

Buy and	Check the contents.
Unpacking

Installation	Installation and Wiring: Chapter 17
and Wiring	Install and wire a controller, and then turn on the pow

	Setup	Q: What should I do to perform control immediately?
		First, I want to set the input and output.

A: Use the Quick setting function to perform the setup easily.

Quick setting function: Chapter 5

Operation	Q: How do I determine the PID?

A:Use Auto-tuning to perform the tuning easily.

Auto-tuning: Section 6.3

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1.2Input/Output Function

PV Input (equipped as standard)

PV input is a universal input to arbitrarily set the type and range for the thermocouple (TC), resistance-temperature detector (RTD), and DC voltage/current.

► Chapter 7 Input (PV) Functions

	TC	Current
	mV
	V
	mA
		Voltage pulse
	RTD
		Relay contact
	2-wire
	trans-	Motor-operated valve
	mitter

Control Output (equipped as standard)

Control output (OUT) is a universal output to arbitrarily set the type for the current, voltage pulse, and relay. Heating/cooling control and Position proportional control are possible by specifying the suffix code for the control.

Position proportional control is used exclusively for the motor-operated valve (suffix code: Type 1 = -1).

Heating/cooling control is for two output type of heat and cool (suffix code: Type 1 = -2).

► Chapter 10 Output (Control and Retransmission) Functions

	TC	Current
	mV
	V
	mA
		Voltage pulse
	RTD
		Relay contact
	2-wire
	trans-	Motor-operated valve
	mitter

Retransmission Output (equipped as standard)

Retransmission output outputs a PV input value (PV), target setpoint (SP), control output value (OUT) and the like as an analog signal to, for example, the recorder.

► Chapter 10 Output (Control and Retransmission) Functions

External device such as recorder etc.

UT35A/UT32A

Current

1-2

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1.2 Input/Output Function

Contact Input

Up to 7 contact inputs can be incorporated. The operation modes can be switched. PID control and sequence control can be performed simultaneously using the ladder sequence function.

For details, see the table of Model and Suffix Codes.

► Chapter 12 Contact Input/Output Functions

Contact Output

Up to 8 contact outputs can be incorporated. Contact output can output events such as alarms.

PID control and sequence control can be performed simultaneously using the ladder sequence function.

For details, see the table of Model and Suffix Codes.

► Chapter 11 Alarm Functions

24 V DC Loop Power Supply (optional suffix code: /LP)

24 V DC loop power supply can be supplied to 2-wire transmitter.

► 17.4.10 24 V DC Loop Power Supply Wiring

UT35A/UT32A

2-wire transmitter

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1.3Control Functions

PID Control

PID control is a general control using the PID control-related parameters.

► 8.2.1 PID Control

Recorder

UT35A/UT32A

Alarms

Retransmission

output

TC

4-20 mA DC

Electric furnace

SCR

Thyristor

Heating/cooling Control (suffix code: Type 1 = -2)

Heating/cooling control is available only for Heating/cooling type.

In Heating/cooling control, the controller outputs the result of control computation after splitting it into heating-purpose and cooling-purpose signals.

► 8.2.3 Heating/cooling Control

	UT35A/UT32A
	Cooling (relay signal)
	Heating	PV
	(4-20 mA DC signal)
	Heating unit
	Cooling
	water
	SCR
	Thyristor
	TC

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1.3 Control Functions

Position Proportional Control (suffix code: Type 1 = -1)

Position proportional control is available only for Position proportional type. It is used exclusively for the motor-operated valve.

► 10.14 Adjusting Motor-operated Valve Position (Position Proportional Output)

UT35A/UT32A

H (direct) or L (reverse)

contact signal

Control motor

Position signal

TC

	Air
	Motor-operated valve
Furnace	Gas
	Burner

Two-position Two-level Control (suffix code: Type 1 = -2)

Two-position two-level control has two target setpoints to control ON and OFF respectively.

► 8.2.4 Two-position Two-level Control

Output
Hysteresis	Hysteresis
ON
OFF

				PV
Main SP		Sub-SP
Initial value: Reverse		Initial value: Direct
		(offset from main SP)

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1.4Display and Key Functions

Employing a 14-segment, active color LCD greatly increases the monitoring and operating capabilities.

Active Color PV Display (display color change)

The active color PV display function changes the PV display color (red or white) when abnormality occurs in PV etc.

► 13.1.1 Setting Active Color PV Display Function

Normal Abnormal

Guide Display

The guide is displayed on PV display when setting parameters. This guide can be turned on/off with the Fn key.

The scrolling guide is displayed when setting parameters.

Multilingual Guide Display

English, German, French, or Spanish can be displayed in Guide display.

► 13.1.11 Switching Guide Display Language

Parameter Display Level

To intended use of the operator, the display level of the parameter can be set.

► Chapter 18 Parameters

User Function Keys

The UT35A has user function keys (F1, F2, and Fn). The UT32A has a user function key (Fn).

Assign a function to a user function key to use it as an exclusive key.

► 13.2 Assigning Function to User Function Key and A/M Key

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1.5Ladder Sequence Function

To use the ladder sequence function, it is necessary to create a ladder program using LL50A Parameter Setting Software and download it to a controller.

► Ladder sequence function: LL50A Parameter Setting Software User’s Manual

Ladder program

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1.6Communication Functions

The UT35A/UT32A can use RS-485 communication, Ethernet communication, and PROFIBUS-DP communication by specifying the suffix code and optional suffix code for each communication.

► UTAdvanced Series Communication Interface (RS-485, Ethernet) User’s Manual

RS-485 Communication (Modbus communication, PC link communication, and Ladder communication)

The UT35A/UT32A can communicate with PCs, PLCs, touch panels, and other devices.

PC

RS-485/	Model: ML2 of YOKOGAWA is recommended.
RS-232C
converter

Up to 31 connected slaves with a maximum length of 1200m

Ethernet Communication (Modbus/TCP)

The UT35A can be connected to IEEE802.3-compliant network (10BASE-T/100BASE-TX).

A serial gateway function can increase the number of connected controllers.

	Host computer	Distance from hub to controller: Within 100 m
		Number of cascade connections on hub:
		Max. 4 stages (10BASE-T)
Hub	Ethernet	Max. 2 stages (100BASE-TX)
LAN
connnection

Serial gateway function

RS-485 communication Up to 31 connected slaves with a maximum length of 1200m

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1.6 Communication Functions

PROFIBUS-DP Communication

The UT35A can be used as the slave devices for PROFIBUS-DP communication. Readout of PV, operation or alarm status, and SP setting can be done by accessing the remote I/O on the master unit of PROFIBUS-DP.

PLC

PROFIBUS-DP Master

PROFIBUS-DP communication

PROFIBUS-DP Slave / Modbus Master

Modbus/RTU communication

Max. 1200 m, number of connected slaves: 31

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Modbus Slave

Modbus Slave

Modbus Slave

Modbus Slave

Peer-to-peer Communication

In Peer-to-peer communication, controllers send and receive process data each other and share data. However, ladder program creation using LL50A Parameter Setting Software is necessary.

► Ladder program: LL50A Parameter Setting Software User’s Manual

Controller No. 1 to 4 can transmit and receive data. Controller No. 5 to 32 can only receive data.

	• •	• •	• • • • • •
1	2	4	15	32

Max. 32 controllers

Coordinated Operation

A system of coordinated operation is configured with a master controller and a number of slave controllers. The slave controllers are set to operate in the same way as the master controller. Therefore you do not have to create a communication program.

Master

Up to 31 connected slaves with a maximum length of 1200m

Slave

Slave

Slave

Slave

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1.6 Communication Functions

Light-loader Communication

Use the LL50A to set parameters and create ladder programs. Attach the adapter to the front of the controller to communicate.

► Light-loader function: LL50A Parameter Setting Software User’s Manual

LL50A Parameter Setting Software

Light-loader

adapter

To USB terminal

Dedicated cable

Maintenance Port Communication (Power supply is not required for the UT35A/UT32A)

Maintenance port is used to connect with the dedicated cable when using LL50A Parameter Setting Software (sold separately). The parameters can be set without supplying power to the UT35A/UT32A.

LL50A Parameter Setting Software

To USB terminal

Dedicated cable

CAUTION

When using the maintenance port, do not supply power to the controller. Otherwise, the controller does not work normally.

If power is supplied to the controller while the cable is connected, or the cable is connected to the controller already turned on, unplug the cable and turn on the controller again. The controller returns to the normal condition.

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1.7Definition of Main Symbols and Terms

Main Symbol

PV: Measured input value

SP: Target setpoint

OUT: Control output value

A/M: AUTO/MAN

AUTO: Automatic

MAN: Manual

REMOTE, REM: Remote

LOCAL, LCL: Local

E1, E3, and E4: Terminal areas

► 17.4 Wiring

Engineering Units

Input range (scale): the PV range low limit is set to 0%, and the high limit is set to 100% for conversion.

Input range (scale) span: the PV range span is set to 100% for conversion.

In this manual, the parameter setting range is described as the “input range” and “input range span.” This means that engineering units are required to be set. Set a temperature for temperature input.

The following describes a conversion example.

When the PV input range is 100 to 600°C, 0% of the PV range is equivalent to 100°C, 50% of the PV range is equivalent to 350°C, and 100% of the PV range is equivalent to 600°C.

100% of the PV range span is equivalent to 500°C. 20% of the PV range span is equivalent to 100°C.

Minimum value of PV input range			Maximum value of PV input range
100°C		350°C	600°C

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0% of

PV input

range

50% of PV input range

100% of

PV input

range

100% of PV input range span = 500°C

The above applies to the scale for voltage and current input.

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