Yokogawa UT350 Operating Manual

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User’ s Manual

Models UT350/UT320 Digital Indicating Controllers User ’s Manual

IM 05D01D02-41E

2nd Edition

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Introduction

Thank you for purchasing the UT350/UT320 digital indicating controller.

■ How to Use the Manuals

Purpose Description

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

Basic operation

Operating procedures and troubleshooting

Brief operation and setpoint recording

Title

1. Installation

Initial Settings

3. Operations

4.1 Troubleshooting

5. Parameters

■ 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.

to make the controller ready for operations. Describes examples of setting PV input types, control output

types, and alarm types. Making settings described herein allows you to carry out basic control.

Describes key operation sequences. For operation control through external contact inputs, see “1.5 Terminal Wiring Diagrams.”

Contains the parameter map used as a guideline for setting parameters and lists of parameters for recording User Settings.

(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.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Safety Precautions

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

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

CAUTION

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

Y okogawa 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.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Models UT350/UT320 Digital Indicating Controllers User’s Manual

CONTENTS

Introduction........................................................................................................... i

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 W iring Diagrams............................................................................ 1-12

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

Toc-1

IM 05D01D02-41E 2nd Edition

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 T ype ................................................................................. 2- 6

2.4 Setting Control Output T ype........................................................................... 2-8

2.5 Changing Alarm Type ..................................................................................... 2-9

2.6 Description of Multiple Setpoints and PID................................................... 2-12

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

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

3.2 Setting T arget Setpoint (SP) ........................................................................... 3-3

3.3 Performing/Canceling Auto-tuning................................................................ 3- 4

3.4 Setting PID Manually....................................................................................... 3-5

3.5 Setting Alarm Setpoints.................................................................................. 3-6

3.6 Selecting Target Setpoint Numbers (SP.NO) ................................................. 3-7

3.7 Switching between Run and Stop .................................................................. 3-8

3.8 Switching between AUTO and MAN............................................................... 3-9

3.9 Manipulating Control Output in Manual Operation ..................................... 3-10

4. T roubleshooting and Maintenance ........................................................ 4-1

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

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

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

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

4.2.3 Attaching T erminal Cover.................................................................. 4-4

4.2.4 Replacing Parts with a Limited Service Life....................................... 4 -6

4.2.5 Replacing Control Output Relays...................................................... 4-7

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

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

Revision Information ............................................................................................ i

Toc-2

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

5.2 Lists of Parameters......................................................................................... 5-4

IM 05D01D02-41E

2nd Edition : Sep 20,2002-00

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 suf fix codes match your order.

Model Suffix Code Description UT350 UT320

Type

Optional functions

-0 Standard type

-2 Heating/cooling type

Check that the following items are provided:

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

Digital indicating controller (provided with retransmission output and 15 V DC loop power supply as standard)

Standard type (with 24 V DC loop power supply)-3

0 None 1 With communication, heater burnout alarm 2 With heater burnout alarm

1-1

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

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

• User’s Manuals.................................................................... 3 (A2 size)

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

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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,

2. mechanical vibrations are minimal,

3. corrosive gas is minimal,

150mm

1-2

4. temperature can be maintained at about 23 C and the fluctuation is minimal,

150mm150mm

150mm

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 mmthick uncoated steel plates.

NOTE

Never touch the opening at the bottom of the case. It is to be used in the factory at shipping.

● Installation Position

Install the controller at an angle within 30 from horizontal with the front panel facing upward. Do not install it facing downward. The position of right and left sides should be horizontal.

Front panel

of controller

30

Must not exceed 30

Rear of controller

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■ External Dimensions and Panel Cutout Dimensions

1-3

UT350

100

1 to 10 mm (Panel thickness)

General installation Side-by-side close installation

+0.8

(53)

+0.8

145 min.

"N" stands for the number of controllers to be installed. However, the measured value applies if N  5.

Large bracket

91.8

Small bracket

[(N-1)96+92]117 min.

112

+0.8

Unit: mm

+0.8

(25)

UT320

10048 11

1 to 10 mm (Panel thickness)

General installation Side-by-side close installation

70 min.

+0.8

145 min.

"N" stands for the number of controllers to be installed. However, the measured value applies if N  5.

(53)

+0.8

Small bracket

112

91.8

Small bracket

[(N-1)48+45]

+0.6

Unit: mm

+0.6

(25)

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■ How to Install

Turn off the power to the controller before installing it on the panel because there is a possibility of electric shock.

CAUTION

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.

1-4

Direction to insert the controller

Insert the controller into the opening at the front of the panel.

Panel

Insert a screwdriver into the brackets to tighten the screws.

Small bracket

(bottom mounting hardware)

Large bracket

(top mounting hardware)

Terminal board

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1.3 How to Connect Wires

1) Before carrying out wiring, turn of f the power to the controller and check that the cables to be connected are not alive with a tester or the like because there is a possibility of electric shock.

CAUTION

2) Wiring must be carried out by personnel who have basic electrical knowledge and practical experience.

NOTE

1) Provide power from a single-phase instrument power supply. If there is a lot of noise in the power line, insert an insulating transformer into the primary side of the line and use a line filter (recommended part: ZAC2205-00U from TDK) on the secondary side. As a countermeasures against noise, do not place the primary and secondary power cables close to each other.

2) For thermocouple input, use shielded compensating lead wires for wiring. For R TD input, use shielded wires that have low conductor resistance and cause no significant differences in resistance between the three wires. The cables to be used for wiring, terminal specifications, and recommended parts are as shown below.

1-5

3) Control output relays may be replaced. However, because they have a life of 100,000 times that of the resistance load, use auxiliary relays to turn on/off a load.

4) The use of inductance (L) loads such as auxiliary relays, motors and solenoid valves causes malfunction or relay failure; always insert a CR filter for use with alternating current or a diode for use with direct current, as a spark-removal surge suppression circuit, into the line in parallel with the load.

5) When there is possibility of being struck by external lightening surge, use the arrester to protect the instrument.

■ For DC Relay Wiring ■ For AC Relay Wiring

UT350/UT320

UT’s contact

(Use one with a relay coil

rating less than the UT’s

contact rating.)

External DC power supply

Relay

Diode (Mount it directly to the relay coil terminal (socket).)

UT350/UT320

UT’s contact

(Use one with a relay coil

rating less than the UT’s

contact rating.)

External AC power supply

Relay

CR filter (Mount it directly to the relay coil terminal (socket).)

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

● Cable Specifications and Recommended Cables

Purpose Name and Manufacturer

Power supply, grounding, relay contact outputs

Thermocouple Shielded compensating lead wires, JIS C 1610, X- - -

RTD Shielded wires (three conductors), UL2482 (Hitachi Cable) Other signals Shielded wires

600 V PVC insulated wires, JIS C 3307, 0.9 to 2.0 mm2

(See Yokogawa Electric's GS 6B1U1-E.)

● Recommended T erminal Lugs

Applicable wire size Tightening torque

0.3 to 1.65 mm

0.8 N·m or less

1-6

7 mm or less

3.7mm

7 mm or less

3.7mm

● T erminal Covers (Optional parts)

Target Model Part Number Sales Unit For UT350 For UT320

1. Before attaching the terminal cover, bend the side with the groove inward as shown in Fig. A. Be careful not to bend it backwards. This not only marks it harder to attach the cover but will also weaken its hold.

2. Fit the holes on the top and bottom of the terminal cover the projections on the brackets (Fig. B) and lock in place. The figure right shows the attachment of a terminal cover to UT controller .

T9115YD 1 T9115YE 1

Figure A

Figure B

Fold the cover in the direction of the arrow.

Fit the cover hold over the protrusion on the mounting bracket.

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1.4 Hardware Specifications

PV Input Signals

• Number of inputs: 1 (terminals 11-12-13)

• Input type: Universal input system. The input type can be selected with the software.

• Sampling period: 250 ms

• Burnout detection: Functions at TC, RTD, standard signal (0.4 to 2 V or 1 to 5 V)

Upscale, downscale, and off can be specified. For standard signal, burnout is determined to have occurred if it is 0.1 V or less.

• Input bias current: 0.05  A (for TC or R TD b-terminal)

• Measurement current (RTD): About 0.13 mA

• Input resistance: 1 M or more for thermocouple or mV input

About 1 M for DC voltage input

• Allowable signal source resistance: 250  or less for thermocouple or mV input Effects of signal source resistance: 0.1  V/ or less 2 k or less for DC voltage input Effects of signal source resistance: About 0.01%/100 

1-7

• Allowable wiring resistance: for RTD input Maximum 150 /wire: Conductor resistance between three wires should be equal However, 10 /wire for a maximum range of -150.0 to 150.0 C. Wire resistance effect: 0.1 C/10 

• Allowable input voltage: 10 V DC for thermocouple, mV, or RTD input 20 V DC for DC voltage input

• Noise rejection ratio: 40 dB (50/60 Hz) or more in normal mode 120 dB (50/60 Hz) or more in common mode

• Reference junction compensation error: 1.0 C (15 to 35 C) 1.5 C (0 to 15 C, 35 to 50 C)

• Applicable standards: JIS, IEC, DIN (ITS-90) for thermocouples and RTD

Loop Power Supply

Supplies power to a two-wire transmitter. (15 V DC: terminals A resistor (10 to 250 ) connected between the controller and transmitter converts a current signal into a voltage signal, which is then read via the PV input terminal. Supply voltage: 14.5 to 18.0 V DC, max. 21 mA (provided with a protection circuit against a field short-circuit); 21.6 to 28.0 V DC, max. 30 mA (only for models with 24 V DC loop power supply) When using the 24 V DC loop power supply of the UT320, keep the operating ambient temperature between 0 C and 40 C.

14-15

; 24 V DC: terminals 21-22)

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Retransmission Output

Either PV , target setpoint, or control output is output. Either the retransmission output or the loop power supply can be used with terminals

14-15

1-8

• Number of outputs: 1 (terminals

14-15

)

• Output signal: 4-20 mA DC

• Load resistance: 600  or less

• Output accuracy: 0.3% of span under standard operating conditions (232 C,

5510% RH, power frequency of 50/60 Hz)

Control Output

Universal output system, The output type can be selected with the software.

• Current output (Standard type: terminals Cooling side: terminals

Number of outputs 1 or 2 (two for heating/cooling type),

Output signal 4-20 mA DC

Load resistance 600  or less Output accuracy 0.3% of span under standard operating

switched between a voltage pulse output

• Voltage pulse output (Standard type: terminals Cooling side: terminals

16-17

; Heating/cooling type: Heating side: terminals 16-17;

14-15

)

and current output.

conditions (232 C, 5510% RH,

power frequency of 50/60 Hz)

16-17

; Heating/cooling type: Heating side: terminals 16-17;

14-15

)

Number of

outputs

Output signal

Resolution

1 or 2 (two for heating/cooling type),

switched between a voltage pulse output and current output.

On-voltage = 12 V or more (load resistance: 600 Ω or more)

Off-voltage = 0.1 V DC or less

10 ms

• Relay contact output (Standard type: terminals

2-3

; Cooling side: terminals 4-7)

Number of outputs

Output signal Three terminals (NC, NO, and common) /

Contact rating Terminals 1-2-3 :

Resolution 10 ms

1 or 2 (two for heating/cooling type)

250 V AC or 30 V DC, 3 A (resistance load)

240 V AC or 30 V DC, 1A (resistance load)

1-2-3

Two terminals

Terminal 4-7 :

; Heating/cooling type: Heating side: terminals 1-

Contact Inputs

• Purpose: Selection between target setpoints or Auto/Man modes, or for other purposes

• Number of inputs: 2

• Input type: Non-voltage contact or transistor open collector input

• Input contact rating: 12 V DC, 10 mA or more

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• On/off determination: For non-voltage contact input, contact resistance of 1 k or less is determined as “on” and contact resistance of 20 k or more as “off.” For transistor open collector input, input voltage of 2 V or less is determined as “on” and leakage current must not exceed 100  A when “off.”

• Minimum status detection hold time: About 1 second.

Contact Outputs

• Purpose: Alarm output, F AIL output, and others

• Number of outputs: 3

• Relay contact rating: 240 V AC/1 A or 30 V DC/1 A (COM terminal is common.)

(FAIL output : 1b)

Display Specifications

• PV display: UT350: 4-digit, 7-segment red LED display , character height of 20 mm UT320: 4-digit, 7-segment red LED display , character height of 12 mm

• Setpoint display: 4-digit, 7-segment red LED display, character height of 9.3 mm (for both UT350 and UT320)

1-9

• Status indicating lamps: LEDs

Safety and EMC Standards

• Safety: Compliant with IEC1010-1: 1990 and EN61010-1: 1992 Approved by CSA1010 CSA1010 installation category (overvoltage category): CA TII (IEC1010-1) Approved by UL508

• EMC standards: The instrument continues to operate at a measuring accuracy of within 20% of the range during test.

Construction, Installation, and Wiring

• Construction: Only the front panel is dust-proof and drip-proof (protection class IP55) For side-by-side close installation the controller loses its dust-proof and drip-proof protection.

• Material: ABS resin and polycarbonate

• Case color: Black

• Weight: About 1 kg or less

• Dimensions:

UT350  96 (W)  96 (H)  100 (depth from panel face) mm UT320  48 (W)  96 (H)  100 (depth from panel face) mm

• Installation: Panel-mounting type. With top and bottom mounting hardware (1 each)

• Panel cutout dimensions:

UT350  92 UT320  45

+0.8

(W)  92

0 +0.6

(W)  92

+0.8

(H) mm

0 +0.8

(H) mm

• Installation position: Up to 30 upward facing (not designed for facing downward)

• Wiring: M3.5 screw terminals (for signal wiring and power/ground wiring as well)

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Power Supply Specifications

• Power supply: Rated voltage of 100 to 240 V AC (10%), 50/60 Hz

• Power consumption: Max. 20 VA (8.0 W max.)

• Internal fuse rating: 250 V AC, 1.6A time-lug fuse

• Data backup: Non-volatile memory (can be written to up to 100,000 times)

• Withstanding voltage

- Between primary terminals* and secondary terminals**:

At least 1500 V AC for 1 minute (Note)

- Between primary terminals* and grounding terminal:

At least 1500 V AC for 1 minute (Note)

- Between grounding terminal and secondary terminals**:

At least 1500 V AC for 1 minute

- Between secondary terminals**:

At least 500 V AC for 1 minute * Primary terminals indicate power terminals and relay output terminals ** Secondary terminals indicate analog I/O signal, voltage pulse output, and contact

input terminals

Note: The withstanding voltage is specified as 2300 V AC per minute to provide a margin of safety .

1-10

• Insulation resistance: 20 M or more at 500 V DC between power terminals and grounding terminal

• Grounding: Class 3 grounding (grounding resistance of 100  or less)

Signal Isolations

• PV input terminals: Isolated from other input/output terminals. Not isolated from the internal circuit.

• 15 V DC loop power supply terminals: Not isolated from 4-20 mA analog output and voltage pulse control output. Isolated from other input/output terminals and internal circuit.

• 24 V DC loop power supply terminals: Isolated from the 15 V DC loop power supply terminals, 4-20 mA analog output terminals and voltage pulse control output terminals, other I/O terminals and the internal circuitry .

• 4-20 mA analog output terminals (for control output and retransmission): Not isolated between 4-20 mA outputs and from 15 V DC loop power supply and voltage pulse control output. Isolated from other input/output terminals and internal circuit.

• Voltage pulse control output terminals: Not isolated from 4-20 mA outputs and 15 V DC loop power supply . Isolated from other input/output terminals and internal circuit.

• Relay contact control output terminals: Isolated between contact output terminals and from other input/output terminals and internal circuit.

• Contact input terminals: Not isolated between contact input terminals and from communication terminals. Isolated from other input/output terminals and internal circuit.

• Relay contact alarm output terminals: Not isolated between relay contact alarm outputs. Isolated from other input/output terminals and internal circuit.

• RS-485 communication terminals: Not isolated from contact input terminals. Isolated from other input/output terminals and internal circuit.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

• Power terminals: Isolated from other input/output terminals and internal circuit.

• Grounding terminals: Isolated from other input/output terminals and internal circuit.

Environmental Conditions

• Normal operating conditions: Ambient temperature: 0 to 50 C (40 C or less for side-by-side close installation) The operating ambient temperature range is between 0 C and 40 C when the 24 V DC loop power supply of the UT320 is used. T emperature change rate: 10 C/h or less Ambient humidity: 20 to 90% RH (no condensation allowed) Magnetic field: 400 A/m or less Continuous vibration at 5 to 14 Hz: Full amplitude of 1.2 mm or less Continuous vibration at 14 to 150 Hz: 4.9 m/s Short-period vibration: 14.7 m/s Shock: 147 m/s

or less, 1 1 ms

, 15 seconds or less

Installation height: Height above sea level of 2000 m or less Warm-up time: 30 minutes or more after power on

• Transportation and storage conditions: T emperature: -25 to 70 C T emperature change rate: 20 C/h or less Humidity: 5 to 95% RH (no condensation allowed)

or less

1-11

• Effects of changes in operating conditions

- Effects from changes in ambient temperature:

- On voltage or thermocouple input, 1  V/ C or 0.01% of F .S./ C, whichever is larger

- On RTD input, 0.05 C/ C (ambient temperature) or less

- On analog output, 0.05% of F .S./ C or less

- Effects from power supply fluctuation (within rated voltage range)

- On analog input, 1  V/10 V or 0.01% of F.S./10 V, whichever is larger

- On analog output, 0.05% of F.S./10 V or less

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

1.5 T erminal Wiring Diagrams

NOTE

Do not use unassigned terminals as relay terminals.

Terminal wiring diagrams are shown on and after the next page.

1-12

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Relay contact output

Control output

COM

Contact rating: 250 V AC, 3 A

30 V DC, 3 A (resistance load)

Note: Select this option from

the OT parameter.

* Time proportional PID

relay contact output is

configured at factory

before shipment.

RS-485 communication

* Wiring can only be carried out

for controllers with

communication functions.

Maximum baud rate: 9600 bps

SDB(+)

SDA(-)

RDB(+)

RDA(-)

24 V DC loop

power supply

* Wiring can only be carried

out for controllers with

24 V DC loop power supply.

TC input

RTD input

mV/V input

Installation category (overvoltage category): II (IEC1010-1)

NOTE

Note: Connecting a 250

Ω resistor to the terminals is

optional.

Model: X010-250-2 (resistor with M3.5 crimp-on terminal

lugs)

When receiving 4-20 mA DC current signals,

set the PV input type to 1-5 V DC (setpoint

“41”).

䊏

Receiving 4-20 mA DC Current

Signals with the Controller

250 Ω

4-20mA

PV input

* Not configured at factory before shipment

See “2. Initial Settings,

” for more

information.

Retransmission output

4-20 mA DC

15 V DC loop power supply

14.5-18.0VDC

(21 mA DC max.)

* PV retransmission is configured at factory

before shipment.

Load resistance: 600

Ω or less

* If 15 V DC loop power supply is used,

retransmission output cannot be used.

Current/voltage

pulse output

4-20 mA DC,

voltage pulse

(12 V)

Control output

Note:Select this

option from the

OT parameter.

Alarm output

AL1

AL2

AL3

COM

Relay contact rating: 240 V AC, 1 A

30 V DC, 1 A (resistance load)

Relay

Alarm-1 output

Alarm-2 output

Alarm-3 output

Common

Power supply

Allowable range: 100 to 240 V AC (

10%)

(free voltage)

50/60 Hz shared

Power supply

CAUTION

Before carrying out wiring, turn off the power

to the controller and check that cables to be

connected are not alive with a tester or the like

because there is a possibility of electric shock.

OT=0 (factory-set default)

Time proportional control

Relay output (terminals , and )

OT=1

Correspondence between parameter OT and control output types

Time proportional control

Voltage pulse output (terminals and )

OT=2

Current output

(terminals and )

OT=3

On-off control

Relay output (terminals , and )

* OT is a setup parameter. You can change the settings of the parameter OT to change the control output type.

See “2. Initial Settings,

” for more information.

When switching target

setpoints 1 to 4:

DI1

DI2

1.SP

2.SP3.SP

4.SP

OFF

OFFOFF

ON ON

OFF

Contact rating: 12 V DC, 10 mA or more

Correspondence between parameter DIS and external contact input functions

When DIS=4

DI1

DI2

COM

Common

When DIS=3

2.SP when DI1=ON

1.SP when DI1=OFF

STOP when DI2=ON

RUN when DI2=OFF

Common

When DIS=2

Hides the LOCK parameter when DI1=ON.

Shows the LOCK parameter when DI1=OFF.

Common

When DIS=1 (Factory-set default)

2.SP when DI1=ON

1.SP when DI1=OFF

AUTO when DI2=ON

MAN when DI2=OFF

Common

When DIS=OFF

No function

Common

DI1

DI2

COM

+5V

Contact

Transistor contact

DIS is a setup parameter.

Changing DIS setpoint allows you to change the function of external contact input.

* This wiring is only

possible for a controller

with a heater burnout

alarm.

Heater current

detection input

CT2

CT1

COM

No function

21.6-28.0VDC

(30 mA DC max.)

Note: External Contact Input

If the power is turned on when the external contact input is OFF, the mode

(SP.no or A/M) existing before the power is turned off will be continued.

(except for RUN/STOP)

1-13

■ UT350 Standard T ype (Model UT350-0䊐 or UT350-3䊐) or Heating/Cooling T ype (Model UT350-2䊐)

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Heating-side control output

COM

Relay contact output

* Time proportional PID relay contact output

is configured at factory before shipment.

* Available if 4, 7 or 10 is set in the OT

(Control Output Type) setup parameter.

Contact rating: 250 V AC, 3 A

30 V DC, 3 A (resistance load)

SDB(+)

SDA(-)

RDB(+)

RDA(-)

* Wiring can only be carried out

for controllers with communication

functions.

Maximum baud rate: 9600 bps

RS-485 communication

TC input

RTD input

mV/V input

Installation category (overvoltage category): II (IEC1010-1)

NOTE

When receiving 4-20 mA DC current signals,

set the PV input type to 1-5 V DC (setpoint

“41”).

䊏

Receiving 4-20 mA DC Current

Signals with the Controller

250 Ω

4-20mA

Note: Connecting a 250

Ω resistor to the terminals is

optional.

Model: X010-250-2 (resistor with M3.5 crimp-on terminal

lugs)

PV input

* Not configured at factory before shipment

See “2. Initial Settings,

” for more

information.

Heating-side control output

Current/voltage

pulse output

4-20 mA DC,

voltage pulse

(12 V)

* Available if 5, 6, 8, 9, 11

or 12 is set in the OT

(Control Output

Type) setup parameter.

Retransmission output

4-20 mA DC

4-20 mA DC,

voltage pulse (12 V)

15 V DC loop power supply

14.5-18.0VDC

(21 mA DC max.)

Cooling-side control output

Power supply

Allowable range: 100 to 240 V AC (

10%)

(free voltage)

50/60 Hz shared

AL1

AL2

AL3

COM

Relay

Alarm output/cooling-side control output

Alarm-1 output

Alarm-2 output

Alarm-3 output

or cooling-side control

output (Note)

Common

Relay contact rating: 240 V AC, 1 A

30 V DC, 1 A (

resistance

load)

When switching target

setpoints 1 to 4:

DI1

DI2

1.SP

2.SP3.SP

4.SP

OFF

OFFOFF

ON ON

OFF

Contact rating: 12 V DC, 10 mA or more

Correspondence between parameter DIS and external contact input functions

When DIS=4

DI1

DI2

COM

Common

When DIS=3

2.SP when DI1=ON

1.SP when DI1=OFF

STOP when DI2=ON

RUN when DI2=OFF

Common

When DIS=2

Hides the LOCK parameter when DI1=ON.

Shows the LOCK parameter when DI1=OFF.

Common

When DIS=1 (Factory-set default)

2.SP when DI1=ON

1.SP when DI1=OFF

AUTO when DI2=ON

MAN when DI2=OFF

Common

When DIS=OFF

No function

Common

DI1

DI2

COM

+5V

Contact

Transistor contact

DIS is a setup parameter.

Changing DIS setpoint allows you to change the function of external contact input.

No function

OT=4 (factory-set default) OT=5

Correspondence between parameter OT and heating-side/cooling-side output types

OT=6

OT=7 OT=8 OT=9 OT=10 OT=11 OT=12

* OT is a setup parameter. You can change the settings of the parameter OT to change the control output type.

See “2. Initial Settings,

” for more information.

The control output types,

“relay output

” and “voltage pulse output

” shown in the table above refer to those of time proportional control.

To change the type to a relay output for on-off control, select

“Relay Terminals

” and change the setpoint of the proportional band to

“0.”

Heating side: Relay output

(terminals , and )

Cooling side: Relay output

(terminals and )

Heating side: Voltage pulse output

(terminals and )

Cooling side: Relay output

(terminals and )

16 17

Heating side: Current output

(terminals and )

Cooling side: Relay output

(terminals and )

16 17

14 15

Heating side: Relay output

(terminals , and )

Cooling side: Voltage pulse output

(terminals and )

Heating side: Relay output

(terminals , and )

Cooling side: Current output

(terminals and )

Heating side: Voltage pulse output

(terminals and )

Cooling side: Voltage pulse output

(terminals and )

16 17

Heating side: Current output

(terminals and )

Cooling side: Voltage pulse output

(terminals and )

Heating side: Voltage pulse output

(terminals and )

Cooling side: Current output

(terminals and )

16 17

Heating side: Current output

(terminals and )

Cooling side: Current output

(terminals and )

Note: The cooling-side control output is selected if 4, 5 or

6 is set in the OT (Control Output Type) setup

parameter. The alarm-3 output is not available.

The controller is factory-set to the cooling-side control

output (time proportional PID relay contact output).

* PV retransmission is configured at factory before shipment.

* If 15 V DC loop power supply is used,

retransmission output cannot be used.

* The retransmission output and 15 V DC

loop power supply are not available if

the cooling-side control output is set to

“current output

” and “voltage pulse output.

”

Heater current

detection input

CT2

CT1

COM

* This wiring is only possible

for a controller with a heater

burnout alarm.

Note: External Contact Input

If the power is turned on

when the external contact

input is OFF, the mode

(SP.no or A/M) existing

before the power is turned

off will be continued.

(except for RUN/STOP)

CAUTION

Before carrying out wiring, turn off the power

to the controller and check that cables to be

connected are not alive with a tester or the like

because there is a possibility of electric shock.

■ UT350 Heating/Cooling T ype (Model UT350-2䊐)

1-14

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Relay contact output

Control output

COM

Contact rating: 250 V AC, 3 A

30 V DC, 3 A (resistance load)

Note: Select this option from

the OT parameter.

* Time proportional PID

relay contact output is

configured at factory

before shipment.

RS-485 communication

* Wiring can only be carried out

for controllers with

communication functions.

Maximum baud rate: 9600 bps

SDB(+)

SDA(-)

RDB(+)

RDA(-)

* Wiring can only be carried

out for controllers with

24 V DC loop power supply.

Power supply

Allowable range: 100 to 240 V AC (

10%)

(free voltage)

50/60 Hz shared

Power supply

CAUTION

Before carrying out wiring, turn off the power

to the controller and check that cables to be

connected are not alive with a tester or the like

because there is a possibility of electric shock.

Alarm output

AL1

AL2

AL3

COM

Relay contact rating: 240 V AC, 1 A

30 V DC, 1 A (resistance load)

Relay

Alarm-1 output

Alarm-2 output

Alarm-3 output

Common

Current/voltage

pulse output

4-20 mA DC,

voltage pulse

(12 V)

Control output

Note:Select this option

from the OT

parameter.

TC input

RTD input

mV/V input

Installation category (overvoltage category): II (IEC1010-1)

NOTE

Note: Connecting a 250

Ω resistor to the terminals is

optional.

Model: X010-250-2 (resistor with M3.5 crimp-on terminal

lugs)

When receiving 4-20 mA DC current signals,

set the PV input type to 1-5 V DC (setpoint

“41”).

䊏

Receiving 4-20 mA DC Current

Signals with the Controller

250 Ω

4-20mA

PV input

* Not configured at factory before shipment

See “2. Initial Settings,

” for more

information.

Retransmission output

4-20 mA DC

15 V DC loop power supply

14.5-18.0VDC

(21 mA DC max.)

* PV retransmission is configured at factory

before shipment.

Load resistance: 600

Ω or less

* If 15 V DC loop power supply is used,

retransmission output cannot be used.

* This wiring is only

possible for a controller

with a heater burnout

alarm.

Heater current

detection input

CT2

CT1

COM

OT=0 (factory-set default)

Time proportional control

Relay output (terminals , and )

OT=1

Correspondence between parameter OT and control output types

Time proportional control

Voltage pulse output (terminals and )

OT=2

Current output

(terminals and )

OT=3

On-off control

Relay output (terminals , and )

* OT is a setup parameter. You can change the settings of the parameter OT to change the control output type.

See “2. Initial Settings,

” for more information.

When switching target

setpoints 1 to 4:

DI1

DI2

1.SP

2.SP3.SP

4.SP

OFF

OFFOFF

ON ON

OFF

Contact rating: 12 V DC, 10 mA or more

Correspondence between parameter DIS and external contact input functions

When DIS=4

DI1

DI2

COM

Common

When DIS=3

2.SP when DI1=ON

1.SP when DI1=OFF

STOP when DI2=ON

RUN when DI2=OFF

Common

When DIS=2

Hides the LOCK parameter when DI1=ON.

Shows the LOCK parameter when DI1=OFF.

Common

When DIS=1 (Factory-set default)

2.SP when DI1=ON

1.SP when DI1=OFF

AUTO when DI2=ON

MAN when DI2=OFF

Common

When DIS=OFF

No function

Common

DI1

DI2

COM

+5V

Contact

Transistor contact

DIS is a setup parameter.

Changing DIS setpoint allows you to change the function of external contact input.

No function

24 V DC loop

power supply

21.6-28.0VDC

(30 mA DC max.)

Note: External Contact Input

If the power is turned on when the external contact input is OFF, the

mode (SP.no or A/M) existing before the power is turned off will be

continued. (except for RUN/STOP)

1-15

■ UT320 Standard T ype (Model UT320-0䊐 or UT320-3䊐) or Heating/Cooling T ype (Model UT320-2䊐)

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Heating-side control output

COM

Relay contact output

* Time proportional PID relay contact

output is configured at factory

before shipment.

* Available if 4, 7 or 10 is set in the OT

(Control Output Type) setup parameter.

Contact rating: 250 V AC, 3 A

30 V DC, 3 A (resistance load)

SDB(+)

SDA(-)

RDB(+)

RDA(-)

* Wiring can only be carried out

for controllers with communication

functions.

Maximum baud rate: 9600 bps

RS-485 communication

TC input

RTD input

mV/V input

Installation category (overvoltage category): II (IEC1010-1)

NOTE

When receiving 4-20 mA DC current signals,

set the PV input type to 1-5 V DC (setpoint

“41”).

䊏

Receiving 4-20 mA DC Current

Signals with the Controller

250 Ω

4-20mA

Note: Connecting a 250

Ω resistor to the terminals is

optional.

Model: X010-250-2 (resistor with M3.5 crimp-on terminal

lugs)

PV input

* Not configured at factory before shipment

See “2. Initial Settings,

” for more

information.

Retransmission output

4-20 mA DC

15 V DC loop power supply

14.5-18.0VDC

(21 mA DC max.)

* PV retransmission is configured at factory before shipment.

* If 15 V DC loop power supply is used,

retransmission output cannot be used.

* The retransmission output and 15 V DC

loop power supply are not available if

the cooling-side control output is set to

“current output

” and “voltage pulse output.

”

Heating-side control output

Current/voltage

pulse output

4-20 mA DC,

voltage pulse

(12 V)

* Available if 5, 6, 8, 9,

11 or 12 is set in the OT

(Control Output Type)

setup parameter.

When switching target

setpoints 1 to 4:

DI1

DI2

1.SP

2.SP3.SP4.SP OFF

OFFOFF

ON ON

OFF

Contact rating: 12 V DC, 10 mA or more

Correspondence between parameter DIS and external contact input functions

When DIS=4

DI1

DI2

COM

Common

When DIS=3

2.SP when DI1=ON

1.SP when DI1=OFF

STOP when DI2=ON

RUN when DI2=OFF

Common

When DIS=2

Hides the LOCK parameter when DI1=ON.

Shows the LOCK parameter when DI1=OFF.

Common

When DIS=1 (Factory-set default)

2.SP when DI1=ON

1.SP when DI1=OFF

AUTO when DI2=ON

MAN when DI2=OFF

Common

When DIS=OFF

No function

Common

DI1

DI2

COM

+5V

Contact

Transistor contact

DIS is a setup parameter.

Changing DIS setpoint allows you to change the function of external contact input.

No function

Note: The cooling-side control output

is selected if 4, 5 or 6 is set in

the OT (Control Output

Type) setup parameter.

The alarm-3 output is not

available. The controller is

factory-set to the cooling-side

control output (time proportional

PID relay contact output).

CAUTION

Before carrying out wiring, turn off the power

to the controller and check that cables to be

connected are not alive with a tester or the like

because there is a possibility of electric shock.

Power supply

Allowable range: 100 to 240 V AC (

10%)

(free voltage)

50/60 Hz shared

Heater current

detection input

CT2

CT1

COM

This wiring is only possible

for a controller with a

heater burnout alarm.

OT=4 (factory-set default) OT=5

OT=6

* OT is a setup parameter.

You can change the settings of the parameter OT to change the control output type.

See “2. Initial Settings,

” for more information.

Heating side: Relay output

(terminals , and )

Cooling side: Relay output

(terminals and )

Heating side: Voltage pulse output

(terminals and )

Cooling side: Relay output

(terminals and )

16 17

Heating side: Current output

(terminals and )

Cooling side: Relay output

(terminals and )

16 17

Correspondence between parameter OT and heating-side/cooling-side output types

OT=7 OT=8 OT=9

Heating side: Relay output

(terminals , and )

Cooling side: Voltage pulse output

(terminals and )

Heating side: Voltage pulse output

(terminals and )

Cooling side: Voltage pulse output

(terminals and )

16 17

Heating side: Current output

(terminals and )

Cooling side: Voltage pulse output

(terminals and )

16 17

OT=10 OT=11 OT=12

The control output types,

“relay output

” and “voltage pulse output

” shown in the table above refer to those of time proportional control.

To change the type to a relay output for on-off control, select

“Relay Terminals

” and change the setpoint of the proportional band to

“0.”

Heating side: Relay output

(terminals , and )

Cooling side: Current output

(terminals and )

Heating side: Voltage pulse output

(terminals and )

Cooling side: Current output

(terminals and )

Heating side: Current output

(terminals and )

Cooling side: Current output

(terminals and )

16 17

100 

Two-wire transmitter

PV input

0.4 to 2.0 V DC signal

Loop power

supply

14.5 to

18.0 V DC

External

resistor

(Note)

Note: Connecting a 100

 resistor to the terminals is optional.

Model: X010-100-2 (resistor with M3.5 crimp-on terminal lugs)

15 V DC Power Supply Wiring to Two-wire Sensor

4-20 mA DC

250 

Two-wire transmitter

PV input

1 to 5 V DC signal

Loop power

supply

21.6 to

28.0 V DC

External

resistor

(Note)

Note: Connecting a 250

 resistor to the terminals is optional.

Model: X010-250-2 (resistor with M3.5 crimp-on terminal lugs)

24 V DC Power Supply Wiring to Two-wire Sensor

* Wiring can only be carried out for controllers with 24 V DC

loop power supply.

4-20 mA DC

AL1

AL2

AL3

COM

Relay

Alarm output/cooling-side control output

Alarm-1 output

Alarm-2 output

Alarm-3 output

or cooling-side control

output (Note)

Common

Relay contact rating: 240 V AC, 1 A

30 V DC, 1 A (

resistance

load)

14 15

4-20 mA DC,

voltage pulse (12 V)

Cooling-side control output

Note: External Contact Input

If the power is turned on when the

external contact input is OFF, the

mode (SP.no or A/M) existing

before the power is turned off will be

continued. (except for RUN/STOP)

1-16

■ UT320 Heating/Cooling T ype (Model UT320-2䊐)

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

2. Initial Settings

This chapter describes examples of setting PV input types, control output types, and alarm types. Carrying out settings described herein allows you to perform basic control. Refer to examples of various settings to understand how to set parameters required. Refer to “5.1 Parameter Map” for an easy to understand explanation of setting various parameters. If you cannot remember how to carry out an operation during setting, press the display (operating display) that appears at power-on.

Setup Procedure

SET/ENT

key for more than 3 seconds. This brings you to the

2-1

Power-on

Set PV input.

See “2.2 Setting PV Input Type (Setting First at Power-on),” or “2.3 Changing PV Input Type.”

Set the control

output.

See “2.4 Setting Control Output Type.”

Set the alarm

type and other setup

parameters.

Set operating

parameters.

Controller operation

(Factory-set to “Unspecified.”)

(Factory-set to “Time Proportional Relay Output.”)

Denotes a step that must always be followed.

Denotes a step that should be followed as necessary.

The following explanation of operation for the UT350’s panel, shown in the figure, is the same as that of the UT320’s panel.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

2.1 Names and Functions of Front Panel Parts

2-2

3. T arget setpoint (SP) number indicator lamps

5. Alarm indicator lamps

6. Light-loader interface

7. A/M key

8. SET/ENT key

Name of Part Process variable (PV)

1. display

2. Setpoint display Target setpoint (SP)

3. number indicator lamps

Status indicator

4. lamp

5. Alarm indicator lamps

6. Light-loader interface

A/M key SET/ENT

key

and keys

A/M

SET/ENT

1. Process variable (PV) display

2. Setpoint display

4. Status indicator lamp

9. and keys

Displays PV. Displays a parameter symbol when you set a parameter. Displays an error code (in red) if an error occurs.

Displays the setpoint (SP) or the output value (OUT) during operation. Displays the set value of parameters on the parameter setting display.

When the SP number currently used for operation is 2, 3 or 4, the respective SP No. indicator lamp lighits. When the SP number is 1, the lamp does not lighit.

Is lit in green during manual operation. MAN: Is lit when in manual mode. Blinks during auto-tuning.

If any of alarms 1 to 3 occurs, the respective alarm indicator lamp (AL1 to AL3) is lit (in orange).

Interface for an adapter cable used when setting and storing parameters from a PC. This requires an optional parameter setting tool.

Used to switch between the AUTO and MAN modes. Each time you press the key, it switches to the AUTO or MAN mode alternately.

Used to switch or register a parameter. Pressing the key for more than 3 seconds allows you to switch between the operating display and the menu for operating parameter setting display alternately.

Used to change numerical values. On setting displays for various parameters, you can change target setpoints, parameters, and output values (in manual operation). Pressing the key decreases a numerical value, while pressing the key causes it to increase. You can hold down a key to gradually increase the speed of change.

2. Setpoint display

3. T arget setpoint (SP) number indicator lamps

6. Light-loader interface

7. A/M key

Function

1. Process variable (PV) display

4. Status indicator lamp

5. Alarm indicator lamps

8. SET/ENT key

9. and keys

IMPORTANT

The controller automatically returns to the display at the time of power-on (i.e., operating display) if no key is operated for at least one minute.

■ Setting of Main Parameters at the Factory before Shipment

Factory-set defaults

Item

Control output

Control action Reverse action (variable) Not specified PID parameter P = 5.0%, I = 240 seconds, D = 60 seconds. Alarm output

for standard type

controllers

Time proportional PID relay output (variable)

Heating side: Time proportional PID relay output (variable)

Cooling side: Time proportional PID relay output (variable)

Alarm-1: PV high limit, Alarm-2: PV low limit, Alarm-3: PV high limit

Factory-set defaults

for heating/cooling type controllers

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

2.2 Setting PV Input T ype (Setting First at Power-on)

NOTE

• The controller displays the operating display when the power is turned on. However, if PV input type has not been set, “IN” appears. In this case, first use the display the input range code to use, then press the the maximum value (RH) and minimum value (RL) of the PV input range (for voltage input, set the maximum value (SH) and minimum value (SL) of the PV input scale).

• The controller is configured to the initial value of each parameter at the factory before shipment. First check the initial values shown in “5.2 Lists of Parameters,” and change parameter values as necessary .

Example of Temperature Input Example of Voltage Input

1V 5V (Input signal)

-200°C 1370°C

0°C 800°C

Minimum value of

PV input range (RL)

Parameters to be set for temperature input

1. PV input type (IN): Set according to a sensor

2. Maximum value of PV input range (RH): Set the maximum value of the range to be controlled.

3. Minimum value of PV input range (RL): Set the minimum value of the range to be controlled.

Instrument input range

PV input range

Maximum value of

PV input range (RH)

Set a range to be controlled

Parameters to be set for voltage input

1. PV input type (IN): Set according to an input signal

2. Maximum value of PV input range (RH): Set the maximum value of an input signal.

3. Minimum value of PV input range (RL): Set the minimum value of an input signal.

4. Position of PV input decimal point (SDP): Set the position of the decimal point for PV input display.

5. Maximum value of PV input scale (SH): Set the maximum value of the scale to be controlled.

6. Minimum value of PV input scale (SL): Set the minimum value of the scale to be controlled.

2V 4V

PV input range

PV input scale

0.0m3/h 50.0m3/h

Minimum value of

PV input scale (SL)

SET/ENT

Instrument input range

Maximum value of PV input scale (SH)

key to register it. Then, set

Set a range to be controlled

2-3

key to

The following operating procedure describes an example of setting the controller to a Ktype thermocouple (-199.9C to 500.0C) and the measurement range of 0.0C to 200.0C.

Display screen at power-on

The parameter “IN” for setting the PV input type appears.

SET/ENT

A/M

AL123

234

MAN

Displays

parameter

“IN”.

Press the or key to display the

required setpoint. The figure below is an example of the controller set to a K-type thermocouple (-199.9C to 500.0C). See “Instrument Input Range Codes.”

SET/ENT

A/M

AL123

234

MAN

Blinks during

change.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

2-4

Press the

SET/ENT

key once to register the

required setpoint.

Press the

SET/ENT

A/M

234

MAN

AL123

key once to display the

parameter “UNIT” (PV Input Unit).

Press the

SET/ENT

A/M

234

MAN

AL123

key once to display the parameter “RH” (maximum value of PV input range).

SET/ENT

A/M

AL123

234

MAN

Displays

parameter

“UNIT”.

Displays

parameter

“RH”.

Press the

SET/ENT

key once to display the parameter “RL” (minimum value of PV input range).

A/M

SET/ENT

Press the or key to display the

AL123

234

MAN

required setpoint. The figure below shows an example of setting the minimum value of PV input range to 0.0C.

10.

Press the

SET/ENT

A/M

234

MAN

AL123

Blinks during

key once to register the setpoint.

SET/ENT

A/M

AL123

234

MAN

Displays

parameter

“RL”.

change.

Press the or key to display the

required setpoint. The figure below shows an example of setting the maximum value of PV input range to 200.0C.

Press the

SET/ENT

A/M

234

MAN

AL123

Blinks during

key once to register the

setpoint.

SET/ENT

A/M

AL123

234

MAN

change.

If the type of input is voltage, also configure the PV Input Decimal Point Position (SDP), Maximum Value of PV Input Scale (SH) and Minimum Value of PV Input Scale (SL) that follow this step.

To set the type of control output, see steps

11.

7 and later in “2.4 Setting Control Output Type.” T o finish settings, press the key for more than 3 seconds. This returns you to the display shown at power-on (figure below).

SET/ENT

A/M

AL123

234

MAN

Displays PV.

The PV display in the figure above shows the error code for input burnout ( ) if PV input wiring is not yet complete. The error code disappears when you wire the PV input terminals correctly .

SET/ENT

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Instrument Input Range Codes

Select the unit from the UNIT parameter.

Input Type

Unspecified

Thermocouple

RTD

Standard signal

DC voltage

B7 S

L(DIN)

U(DIN)

Platinel 2

PR20-40 17 W97Re3-

W75Re25

JPt100

Pt100

0.4 to 2 V 1 to 5 V 41 0 to 2 V 50 0 to 10 V 51

-10 to 20 mV 0 to 100 mV

Instrument Input

Range Code

OFF

37 40

55 -10.00 to 20.00 mV 56 0.0 to 100.0 mV

* Performance in the standard operating condition (at 232C, 5510%RH, and 50/60Hz power frequency) Note 1: The accuracy is 0.3C of instrument range 1 digit for a temperature range from 0C to 100C. Note 2: The accuracy is 0.5C of instrument range 1 digit for a temperature range from -100C to 200C. * T o receive a 4-20 mA DC signal, select a standard signal of 1 to 5 V DC and connect it to a 250  resistor . This resistor

is optional. Model: X010-250-2 (resistor with M3.5 crimp-on terminal lugs)

Instrument

Input Range

Set the data item PV Input Type "IN" to the OFF option to leave the PV input type undefined.

-200 to 1370C

-300 to 2500F

-199.9 to 999.9C 0 to 2300F

-199.9 to 500.0C

-199.9 to 999.9F

-199.9 to 999.9C

-300 to 2300F

-199.9 to 400.0C

-300 to 750F

0.0 to 400.0C

-199.9 to 750.0F 0 to 1800C

32 to 3300F

0 to 1700C

32 to 3100F

0 to 1700C

32 to 3100F

-200 to 1300C

-300 to 2400F

-199.9 to 999.9C

-300 to 1800F

-199.9 to 900.0C

-300 to 1300F

-199.9 to 400.0C

-300 to 750F

0.0 to 400.0C

-199.9 to 750.0F 0 to 2300C

32 to 4200F

0 to 1390C

32 to 2500F

0 to 1900C

32 to 3400F

0 to 2000C

32 to 3600F

-199.9 to 500.0C

-199.9 to 999.9F

-150.0 to 150.0C

-199.9 to 300.0F

-199.9 to 850.0C

-300 to 1560F

-199.9 to 500.0C

-199.9 to 999.9F

-150.0 to 150.0C

-199.9 to 300.0F

0.400 to 2.000 V

1.000 to 5.000 V

0.000 to 2.000 V

0.00 to 10.00 V

0.1% of instrument range 1 digit for temperatures equal to or higher than 0 0.2% of instrument range 1 digit for temperatures below 0

0.15% of instrument range 1 digit at 400C or more 5% of instrument range 1 digit at less than 400

0.15% of instrument range 1 digit

0.1% of instrument range 1 digit 0.25% of instrument range 1 digit for temperatures

below 0

0.1% of instrument range 1 digit for temperatures equal to or higher than 0 0.2% of instrument range 1 digit for temperatures below 0

0.2% of instrument range 1 digit

0.1% of instrument range 1 digit 0.5% of instrument range 1 digit at 800C or more

No accuracy is guaranteed at less than 800

0.2% of instrument range 1 digit

0.1% of instrument range 1 digit (Note 1) (Note 2)

0.2% of instrument range 1 digit (Note 1)

0.1% of instrument range 1 digit (Note 1) (Note 2)

0.2% of instrument range 1 digit (Note 1)

0.1% of instrument range 1 digit

The read-out range can be scaled between -1999 to

9999.

Measurement Accuracy



2-5



NOTE

The controller may automatically initialize the registered operating parameter setpoints if any change is made to the data item PV Input T ype (IN), Maximum Value of PV Input Range (RH), Minimum V alue of PV Input Range (RL), PV Input Decimal Point Position (SDP), Maximum V alue of PV Input Scale (SH) or Minimum Value of PV Input Scale (SL). After a change has been made to any of these data items, be sure to verify the registered operating parameter setpoints to ensure that they are correct. If any data item has been changed to its default, set it to a required value.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

2.3 Changing PV Input T ype

The following operating procedure describes an example of changing the K-type thermocouple (-199.9C to 500.0C) to a Pt100 resistance temerature detector (-199.9C to

500.0C) and setting the measurement range of 0.0C to 200.0C.

2-6

PV input terminal Thermocouple/mV/V input

RTD input .................................................. - -

Bring the operating display into view

(display appears at power on).

Press the

SET/ENT

A/M

234

MAN

AL123

key for more than 3 sec-

onds to call up the menu “OP.PA”.

SET/ENT

A/M

AL123

234

MAN

..............................

Displays PV.

Displays

target setpoint.

Displays

menu “OP.PA”.

1312

131211

Press the

SET/ENT

key once to display the

menu “FUNC”.

A/M

SET/ENT

Press the key once to display the

AL123

234

MAN

Displays

menu “FUNC”.

menu “I/O”.

Displays

menu “I/O”.

SET/ENT

A/M

AL123

234

MAN

Press the key once to display the

menu “STUP”.

Press the

SET/ENT

A/M

234

MAN

AL123

key once to display the

parameter “PWD”.

SET/ENT

A/M

AL123

234

MAN

Displays

menu “STUP”.

Press the

SET/ENT

key once to display the

parameter “IN” (PV input type).

A/M

SET/ENT

Press the or key to display the

AL123

234

MAN

required setpoint. The figure below is an example of the controller set to a Pt 100 resistance temperature detector (-199.9C to 500.0C).

SET/ENT

A/M

AL123

234

Blinks during

MAN

Displays

parameter

“IN”.

change.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

2-7

Press the

SET/ENT

key once to register the

setpoint.

10.

Press the

SET/ENT

A/M

234

MAN

AL123

key once to display the

parameter “UNIT” (PV input unit).

11.

Press the

SET/ENT

A/M

234

MAN

AL123

key once to display the parameter “RH” (maximum value of PV input range).

SET/ENT

A/M

AL123

234

MAN

Displays

parameter

“UNIT”.

Displays

parameter

“RH”.

14.

Press the

SET/ENT

key once to display the parameter “RL” (minimum value of PV input range).

A/M

SET/ENT

Press the or key to display the

15.

AL123

234

MAN

required setpoint. The figure below shows an example of setting the minimum value of PV input range to 0.0C.

16.

Press the

SET/ENT

A/M

234

MAN

AL123

key once to register the setpoint.

SET/ENT

A/M

AL123

234

MAN

Displays

parameter

“RL”.

Blinks during

change.

Press the or key to display the

12.

required setpoint. The figure below shows an example of setting the maximum value of PV input range to 200.0C.

13.

Press the

SET/ENT

A/M

234

MAN

AL123

Blinks during

key once to register the

setpoint.

SET/ENT

A/M

AL123

234

MAN

change.

17.

Press the

SET/ENT

key for more than 3 seconds. This returns you to the display shown at power-on (figure below).

SET/ENT

A/M

AL123

234

MAN

The PV display in the figure above shows the error code for input burnout ( ) if PV input wiring is not yet complete. The error code disappears when you wire the PV input terminals correctly .

Displays PV.

Displays

target setpoint.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

2.4 Setting Control Output T ype

The following operating procedure describes an example of changing time proportional PID relay output (0: factory-set default) to current output (2).

2-8

Control output terminal Time proportional PID relay (0)/on-off(3) output Current (2)/time proportional PID voltage pulse (1) output

For details on the heating/cooling control output terminals, see “1.5 Terminal Wiring Diagrams.”

Bring the operating display into view

(display appears at power on).

Press the

SET/ENT

A/M

234

MAN

AL123

key for more than 3 sec-

onds to call up the menu “OP.PA”.

SET/ENT

A/M

AL123

234

MAN

Values in parentheses are setpoints

...........................

.............

Displays PV.

Displays

target setpoint.

Displays

menu “OP.PA”.

1 2 3

Press the

SET/ENT

key once to display the menu “FUNC”.

A/M

SET/ENT

Press the key once to display the

AL123

234

MAN

menu “I/O”.

SET/ENT

A/M

AL123

234

MAN

Displays

menu “FUNC”.

Displays

menu “I/O”.

Press the key once to display the

menu “STUP”.

Press the

SET/ENT

A/M

234

MAN

AL123

key once to display the

parameter “PWD”.

SET/ENT

A/M

AL123

234

MAN

Displays

menu “STUP”.

Press the

SET/ENT

key several times to display the parameter “OT” (control output type).

A/M

SET/ENT

Press the or key to display the

AL123

234

MAN

required setpoint. The figure below shows an example of setting to current output (4 to 20 mA DC).

SET/ENT

A/M

AL123

234

MAN

Blinks during

Displays

parameter

“OT”.

change.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

2-9

Press the

SET/ENT

key once to register the

setpoint.

SET/ENT

A/M

AL123

234

MAN

2.5 Changing Alarm T ype

The following operating procedure describes an example of changing alarm-1 (factory-set default: PV high limit alarm) to PV low limit alarm. When you have changed alarm type, the alarm setpoint will be initialized; set the alarm setpoint again.

Alarm output terminals

Alarm-1 (terminal numbers ).......PV high limit alarm

Alarm-2 (terminal numbers ).......PV low limit alarm

Alarm-3 (terminal numbers ).......PV high limit alarm

Factory-set defaults

6 7

5 7

4 7

10.

Press the

SET/ENT

key for more than 3 seconds. This returns you to the display shown at power-on (figure below).

SET/ENT

A/M

AL123

234

MAN

Displays PV.

Displays

target setpoint.

Bring the operating display into view

(appears at power-on).

Press the

SET/ENT

A/M

234

MAN

AL123

key for more than 3 sec-

onds to call up the menu “OP.PA”.

SET/ENT

A/M

AL123

234

MAN

Displays PV.

Displays

target setpoint.

Displays

menu “OP.PA”.

Press the key once to display the

menu “STUP”.

Press the

SET/ENT

A/M

234

MAN

AL123

key once to display the parameter “PWD”.

SET/ENT

A/M

AL123

234

MAN

Displays

menu “STUP”.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

2-10

Press the

SET/ENT

key once to display the

menu “FUNC”.

Press the

SET/ENT

A/M

234

MAN

AL123

key several times to

display the parameter “AL1” (alarm-1 type).

A/M

SET/ENT

Press the or key to display the

AL123

234

MAN

parameter

required setpoint. The figure below shows an example of setting PV low limit alarm.

Displays

“AL1”.

Press the

SET/ENT

key once to register the setpoint. Y ou can take the same steps for alarm-2 type (AL2), and alarm-3 type (AL3) that are displayed after this.

Press the

SET/ENT

A/M

234

MAN

AL123

key for more than 3 seconds. This returns you to the display shown at power-on (figure below).

SET/ENT

A/M

AL123

234

MAN

target setpoint.

Displays PV.

Displays

SET/ENT

When setting an alarm setpoint, see “3.4

10.

A/M

AL123

234

MAN

Blinks during

change.

Setting Alarm Setpoints.”

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ List of Alarm Types

The table below shows the alarm types and alarm actions. In the table, codes 1 to 10 are not provided with stand-by actions, while codes 1 1 to 20 are

provided with stand-by actions.

2-11

Alarm action

Alarm type

No alarm OFF

PV high limit

PV low limit

Deviation high

limit

Deviation low

limit

De-energized on

deviation high

limit alarm

Fault diagnosis output (Note 1)

FAIL output

(Note 2)

Sensor grounding

alarm

SP high

limit

SP low

limit

“Open/close” shows status of relay contact, and “lit” and “unlit” shows status of lamp

Hysteresis

Open (unlit)

Alarm setpoint

Hysteresis

Closed (lit)

Alarm setpoint PV

Hysteresis

Open (unlit)

Target SP

Hysteresis

Closed (lit)

Deviation setpoint

Target SP Hysteresis

Closed (unlit)

Target SP

Fault diagnosis output

The controller stops when in a FAIL state. The control output is set to “OFF” or “0%” and alarm output is set to “OFF”.

Sensor grounding alarm

Hysteresis

Open (unlit)

Closed (lit)

Hysteresis

Alarm setpoint

Closed (lit)

Open (unlit)

Closed (lit)

Deviation setpoint

Open (unlit)

Open (lit)

Deviation

setpoint

Closed (lit)

Alarm setpoint

Open (unlit)

Contact

closes

if alarm

occurs

Note 1: The fault diagnosis output turns on in case of input burnout, A/D converter failure, or reference junction compensation

(RJC) failure. The control output in case of input burnout or A/D converter failure is set to the value of the PO (Preset Output Value) setup parameter. In case of RJC failure, the controller continues control under the condition of “RJC = OFF”.

Note 2: The FAIL output is on during normal operation and turns off in case of failure.

Closed

(lit)

Alarm type codeAlarm type code

Contact

closes

if alarm

occurs

Contact

opens

if alarm

occurs

Contact

opens

if alarm

occurs

Alarm type

De-energized

on deviation low

limit alarm

Deviation high

and low limits

Deviation

within

high and low

limits

De-energized

on PV high limit

De-energized

on PV low limit

Heater

burnout alarm 1

Heater

burnout alarm 2

Output high

limit

Output low

limit

“Open/close” shows status of relay contact, and “lit” and “unlit” shows status of lamp

Closed

(lit)

Deviation setpoint

(unlit)

Deviation setpoint

Open (lit)

Heater burnout alarms 1 and 2

Open (unlit)

Closed (lit)

Alarm action

Hysteresis

Open (lit)

Deviation

setpoint

Hysteresis Hysteresis

Hysteresis

Open

Target SP

Closed

(unlit)

Hysteresis

Alarm setpoint

Hysteresis

Alarm setpoint Output value

Target SP

Open

(unlit)

Target SP

Closed

(lit)

Hysteresis

Alarm setpoint

Hysteresis

Alarm setpointOutput value

Hysteresis

Open (unlit)

Closed (unlit)

Open

(unlit)

Open (lit)

Closed

(unlit)

Closed (lit)

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

It is effective in the following cases where;

Stand-by Action

C

Treated

as normal

Normal Abnormal

The alarm

output turns on.

The alarm output does not turn on in this region even if the PV value is below the low limit of the alarm setpoint.

- the power is turned on

- the target setpoint is changed

- the target setpoint number is switched (however, except for remote setpoint)

Low limit of alarm setpoint

2-12

Power-on

Time

2.6 Description of Multiple Setpoints and PID

The UT350/UT320 controllers have a maximum of four target setpoint (SP) parameters and has PID for each of these setpoints. The following shows the correspondence between the target setpoint numbers (SP.NO), target setpoints (SP), and PID parameters.

For example, if you have set “2” to the target setpoint number (SP.NO), the control parameters available are target setpoint (2.SP), proportional band (heating-side proportional band) (2.P), integral time (heating-side integral time) (2.I), derivative time (heating-side derivative time) (2.D), cooling-side proportional band (2.Pc), cooling-side integral time (2.Ic), and cooling-side derivative time (2.Dc).

To use multiple target setpoints, see the table below to check the corresponding parameters.

Target setpoint

number (SP.NO)

SP.NO=1 1.SP 1.P 1.I 1.D 1.Pc 1.Ic 1.Dc SP.NO=2 2.SP 2.P 2.I 2.D 2.Pc 2.Ic 2.Dc SP.NO=3 3.SP 3.P 3.I 3.D 3.Pc 3.Ic 3.Dc SP.NO=4 4.SP 4.P 4.I 4.D 4.Pc 4.Ic 4.Dc

Target

setpoint

(SP)

Proportional

band

(heating-side

proportional band)

Integral time

(heating-side

integral time)

PID parameter

Derivative time

(heating-side

derivative time)

Cooling-side

proportional

band

Cooling-side

integral time

derivative time

Cooling-side

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

3. Operations

This chapter describes key entries for operating the controller . For operations using external contact inputs, see “1.5 T erminal Wiring Diagrams.” If you cannot remem- ber how to carry out an operation during setting, press the seconds. This brings you to the display (operating display) that appears at poweron.

NOTE

Do not use the instrument generating strong magnetic field such as radio equipment and the like near the controller. This may cause the fluctuation of the PV value.

3.1 Monitoring-purpose Operating Displays A vailable during Operation

SET/ENT

key for more than 3

3-1

The monitoring-purpose operating displays available during operation are roughly classified into two groups depending on the types of controller. One group is operating displays for a standard controller and the other group is operating displays for a heating/cooling controller.

■ Operating Displays for a Standard Controller

● SP Display

The PV input value appears on the PV display . The target setpoint (1.SP) appears on the Setpoint display .

● OUT Display

The PV input value appears on the PV display . The control output value (OUT) appears on the Setpoint display .

Operating Displays

Power-on

234

MAN

AL123

A/M

SET/ENT

SP display

(allows the target

setpoint to be changed)

Target

Setpoint

SET/ENT

Output-value

symbol “o”

key

A/M

SET/ENT

OUT display

(allows the control

output value to be changed)

AL1 2 3

234

MAN

Output

value %

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Operating Displays for a Heating/Cooling Controller

● SP Display

The PV input value appears on the PV display . The target setpoint (1.SP) appears on the Setpoint display .

● Heating/Cooling OUT Display

The PV input value appears on the PV display . The heating (H) and cooling (C) sides control output values appears on the Setpoint dis-

play .

Operating Displays for Heating/Cooling Control

3-2

Power-on

234

MAN

AL1 2 3

A/M

SET/ENT

SP display

(allows the target

setpoint to be changed)

SET/ENT

key

Heating-side

output-value

symbol “H”

A/M

SET/ENT

Heating-side OUT display

(allows the control output

value to be changed)

Cooling-side output-value

symbol “C”

A/M

SET/ENT

Cooling-side OUT display

(allows the control output

value to be changed)

234

MAN

Heating-side

output %

Cooling-side

output %

AL123

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

3.2 Setting T arget Setpoint (SP)

The following operating procedure describes an example of setting 120.0 to a target setpoint. In automatic operation, the controller starts control using set target setpoints.

NOTE

When the target setpoint is set through communication, the target setpoint cannot be changed by keystroke.

3-3

Bring the operating display into view

(display appears at power on).

A/M

SET/ENT

Press the or key to display the

AL123

234

MAN

required setpoint.

SET/ENT

A/M

AL123

234

MAN

Displays PV.

Displays

target setpoint.

Blinks during

change.

Press the setpoint.

SET/ENT

key once to register the

SET/ENT

A/M

AL123

234

MAN

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

3.3 Performing/Canceling Auto-tuning

Auto-tuning should be carried out after setting a target setpoint (SP). Make sure the controller is in automatic operation mode (AUTO) and running state (RUN) before carrying out auto-tuning. See “ 3.8 Switching between AUT O and MAN,” to change to AUTO and “ 3.7 Switching between Run and Stop,” to change to Run.

NOTE

When on-off control is being used, auto-tuning cannot be carried out. Moreover , do not perform auto-tuning when controlling any of the following processes.

• Control processes with quick response such as flow control or pressure control

• Processes where even temporary output on/off results in inconvenience

• Processes where a large output change at control element results in inconvenience

• Processes where variations in PV may exceed an allowable range, adversely affect-

ing product quality

3-4

Bring the operating display into view

(display appears at power on).

Press the

SET/ENT

A/M

234

MAN

AL123

key for more than 3 sec-

onds to call up the menu “OP.PA”.

SET/ENT

A/M

AL123

234

MAN

Displays PV.

Displays

target setpoint.

MAN lamp

OFF.

Displays

menu “OP.PA”.

Press the

SET/ENT

key five times to display

the parameter “AT”.

A/M

SET/ENT

Press the or key to display the

AL123

234

MAN

parameter

required setpoint. Tuning for 1.SP is AT = 1.

SET/ENT

A/M

AL123

234

MAN

Blinks during

change.

To cancel auto-tuning, set AT = OFF.

Displays

“AT”.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

3-5

Press the

setpoint. (This starts auto-tuning.) If the

SET/ENT

key once to register the

SET/ENT

key is pressed when AT = OFF, auto-tuning will be cancelled. In this case, PID contains the value existing before auto-tuning.

SET/ENT

A/M

AL123

234

MAN

3.4 Setting PID Manually

If you know the values to be set or if suitable PID constants cannot be obtained by autotuning, follow the procedure below to set values.

During auto-tuning, the panel indications

become as shown below.

SET/ENT

A/M

AL123

234

MAN

Auto-tuning is complete when the MAN lamp goes off.

MAN lamp

blinks.

Bring the operating display into view

(display appears at power on).

Press the

SET/ENT

A/M

234

MAN

AL123

key for more than 3 sec-

onds to call up the menu “OP.PA”.

Press the

SET/ENT

A/M

234

MAN

AL123

key several times to

display the parameter “PID”.

SET/ENT

A/M

AL123

234

MAN

Displays PV.

Displays

target setpoint.

Displays

menu “OP.PA”.

Displays

parameter

“PID”.

Press the key once to display “1Gr”.

Press the

SET/ENT

A/M

234

MAN

AL123

key once to register the

setpoints.

Press the

SET/ENT

A/M

234

MAN

AL123

key once to display the

parameter “1.P” (proportional band for

1.SP).

SET/ENT

A/M

AL123

234

MAN

Blinks during

change.

Displays

parameter

“1.P”.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

3-6

Press the or key to display the

required setpoint.

Press the

SET/ENT

A/M

234

MAN

AL123

Blinks during

key once to register the

setpoint.

SET/ENT

A/M

AL123

234

MAN

The same steps can be used for integral time (1.I) and derivative time (1.D) that are displayed after this.

change.

[TIP] The PID parameter numbers set in step 4. should be set as follows:

In case of PID for 1.SP, PID = 1Gr In case of PID for 2.SP, PID = 2Gr In case of PID for 3.SP, PID = 3Gr In case of PID for 4.SP, PID = 4Gr

Press the

SET/ENT

key for more than 3 seconds. This returns you to the display shown at power-on (figure below).

SET/ENT

A/M

AL123

234

MAN

Displays PV.

Displays

target setpoint

3.5 Setting Alarm Setpoints

The following operating procedure describes an example of setting 160.0 to alarm-1 setpoint. Check alarm type before setting the alarm setpoint. To change the type of alarm, see “2.5 Changing Alarm T ype.”

Alarm output terminals

Alarm-1 (terminal numbers )............PV high limit alarm

Alarm-2 (terminal numbers )............PV low limit alarm

Alarm-3 (terminal numbers )............PV high limit alarm

Bring the operating display into view

(display appears at power on).

SET/ENT

A/M

AL123

234

MAN

Factory-set defaults

6 7

5 7

4 7

Displays PV.

Displays

target setpoint.

Press the

SET/ENT

key for more than 3 seconds to call up the menu “OP.PA”.

SET/ENT

A/M

AL123

Displays

menu “OP.PA”.

234

MAN

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

3-7

Press the

SET/ENT

key twice to display the

parameter “A1”.

A/M

SET/ENT

Press the or key to display the

AL123

234

MAN

required setpoint.

SET/ENT

A/M

AL123

234

MAN

Displays

parameter

“A1”.

Blinks during

change.

Press the

SET/ENT

key once to register the setpoint.

SET/ENT

A/M

AL123

234

MAN

Also configure the Alarm-2 Setpoint (A2) and Alarm-3 Setpoint (A3) parameters that follow this step.

Press the

SET/ENT

key for more than 3 seconds. This returns you to the display shown at power-on (figure below).

SET/ENT

A/M

AL123

234

MAN

target setpoint.

Displays PV.

Displays

3.6 Selecting T arget Setpoint Numbers (SP.NO)

The following operating procedure describes an example of changing a target setpoint number (SP.NO) from 1 to 2.

NOTE

If a target setpoint number has been switched using contact input, when the contact input is on, that number cannot be selected by keystroke.

When using target setpoint ramp setting function, PV tracking works if the target setpoint number is switched.

Bring the operating display into view

(display appears at power on).

SET/ENT

A/M

AL123

234

MAN

Displays PV.

Displays

target setpoint.

Press the

onds to call up the menu “OP.PA”.

SET/ENT

key for more than 3 sec-

SET/ENT

A/M

AL123

234

MAN

Displays

menu “OP.PA”.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

3-8

Press the

SET/ENT

key several times to

display the parameter “SP.NO”.

A/M

SET/ENT

Press the or key to display the

AL123

234

MAN

required setpoint.

SET/ENT

A/M

AL123

234

MAN

Displays

parameter

“SP.NO”.

Blinks during

change.

Press the

SET/ENT

key once to register the setpoint.

Press the

SET/ENT

A/M

234

MAN

AL123

key for more than 3 seconds. This returns you to the display shown at power-on (figure below).

SET/ENT

A/M

AL123

234

MAN

SP2 lamp

ON.

3.7 Switching between Run and Stop

Switching between the RUN and STOP states can be performed only using external contact input.

NOTE

When the controller is shipped from the factory , it is configured so that switching between the RUN and STOP states cannot be performed. To make the switching possible, configure the DIS setup parameter as “DIS = 4”.

Start of operation when OFF

Stop of operation when ON

When the controller is stopped, control output display is “ ”

SET/ENT

A/M

AL123

234

MAN

When the controller is stopped, input and outputs are as follows:

PV input Displays PV. Control output Alarm output ON in the event of an alarm

Preset output value (factory-set default: 0%)

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

3.8 Switching between AUT O and MAN

NOTE

If AUT O and MAN have been switched using contact input, when the contact input is ON, switching between AUT O and MAN cannot be achieved by keystroke.

Bring the operating display into view (display appears at power on).

3-9

Each time you press the

alternately.

In automatic operation In manual operation

AL123

A/M

SET/ENT

234

MAN

A/M

key on the front panel of the instrument, AUTO and MAN is switched

Displays

target setpoint.

MAN lamp

OFF.

SET/ENT

A/M

AL123

234

MAN

Displays PV.

Displays

target setpoint.

Displays

output-value

symbol “o”.

A/M

SET/ENT

AL123

234

MAN

Displays

output value.

MAN lamp

ON.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

3.9 Manipulating Control Output in Manual Operation

NOTE

Control output cannot be changed if the controller is stopped. In this case, the preset output value (setup parameter PO) will be output.

3-10

A control output value is linked with a display value changed using the or key. Note that the control output changes as displayed without requiring the

Bring manual operating display into view.

For switching to manual operation, see “3.8 Switching between AUT O and MAN.”

Displays

output-value

symbol “o”.

SET/ENT

A/M

AL123

234

output value.

MAN

Displays

MAN lamp

ON.

Press the or key to change a

control output value. Y ou don’t need to press the

SET/ENT

key .

A/M

AL123

234

MAN lamp

MAN

■ Manipulating the Control Output during Heating/Cooling Control

Either of the following two displays appears when the mode is switched to MAN during heating/cooling control.

• Heating-side OUT display

ON.

Symbol “H”

represents the

heating-side

output.

SET/ENT

A/M

AL123

234

• Cooling-side OUT display

Symbol “C”

represents the

cooling-side

output.

A/M

SET/ENT

AL123

234

Heating-side

output.

MAN

Cooling-side

output.

MAN

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

● Controller Behavior and Control Output Manipulation when the Dead Band

is Positive

The following is an example when the DB parameter is set at 12.4%.

3-11

If you hold down the

key with the heating-side output under manipulation (i.e., coolingside output C = 0.0%), the heating-side output (H =) decreases. Consequently , both the heating-side and cooling-side outputs change to 0.0%. If you keep the

key held down longer, you enter the state of manipulating the cooling-side output, and its value begins to increase.

Inversely , if you hold down the

key with the cooling-side output under manipulation (i.e., heating-side output H = 0.0%), the cooling-side output (C =) decreases. Consequently , both the heating-side and cooling-side outputs go to 0.0%. If you keep the

key held down longer, you enter the state of manipulating the heating-side output, and its value begins to increase.

Output (%)

Dead band: Operating parameter DB

12.40-12.4

Cooling-side

manipulated output

DB=12.4

Change in manipulated output when the dead band is positive

Heating-side

manipulated output

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Blank Page

4. T roubleshooting and Maintenance

4.1 T roubleshooting

■ T roubleshooting Flow

If the operating display does not appear after turning on the controller’s power, follow the measures in the procedure below.

If a problem appears complicated, contact our sales representative.

Is the instrument

defective?

Yes

Totally

inoperable?

Yes

Is key

operation

faulty?

Yes

Is display

faulty?

Yes

Is I/O

signal faulty?

Yes

communication

link faulty?

Yes

4-1

Check wiring on the power supply terminals.

Check the supply voltage.

Normal?

Yes

Ask the vendor for repair.

Check the key lock setting.

Correct

errors.

Correct?

Yes

Find the cause.

key lock

enabled?

Disable

key lock.

Yes

Turn off power, and then turn it on again.

Check the instrument’s I/O specifications.

Check the specifications of I/O counterpart for wrong polarity.

No communication

capability.

IMPORTANT

Take note of the parameter settings when asking the vendor for repair .

Check the instrument's suffix code.

Does the code

include a communication

option?

Check the communication-related parameters.

Check communication wiring.

Check the specifications of communication counterpart.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Errors at Power on

The following table shows errors that may be detected by the fault diagnosis function when the power is turned on.

4-2

Error indication

(on PV display unit)

(E000) (E001) (E002)

PV decimal point blinks.

(E400)

Description

of error Faulty RAM Faulty ROM System data error

Faulty calibration value

Parameter error

None

0% Normal action

(out of accuracy)

■ Possible Errors during Operation

The following shows possible errors occurring during operations.

Error indication

(on PV display unit) Displays “RJC”

and PV alternately

PV value blinks.

(E300)

(B.OUT)

(OVER) or

(-OVER)

(E200)

SP decimal point blinks. (on setpoint display unit)

All indications off Faulty if power off/on does

All indications off Check for abnormal power.

Description

of error

RJC error

EEPROM error

A/DC error

PV burnout error

Excessive PV Out of -5 to 105%

Auto-tuning failure (Time-out)

Faulty communication line

Runaway (due to defective power or noise)

Power off

Measured with RJC=OFF

Normal action 105

Dependent on the BSL parameter Up-scale: 105% Down-scale: -5%

-5% or 105%

Normal action

None

Control

output

0% or less or OFF

Normal action (out of accuracy)

Preset value output

Control

output

Normal action

Preset value output

Normal action

0% or less or OFF

Normal action

OFF

Alarm output

OFF

Normal action (out of accuracy)

OFF 0%

Retransmis-

Alarm

sion output

output

Normal action

0% or less

Retransmission

output

0% or less Stopped

0% Normal action

(out of accuracy)

Commu-

Normal action

Stopped

Communi-

cation

Normal action

nication

Faulty Contact us for repair.

Check wires and sensor.

Check process.

Check process. Press any key to erase error indication.

Check wires and communication parameters, and make resetting. Recovery at normal receipt

not reset start the unit. Contact us for repair.

Remedy

Faulty Contact us for repair.

Check and set the parameters, as they have been set to the limited values.

Remedy

■ If a Power Failure Occurs during Operation

● Momentary Power Failures shorter than 20 ms

The controller is not affected at all and continues normal operation.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

● Power Failures of 20 ms or longer

• The alarm function of the controller continues to work normally. (Alarms with the stand-by feature temporarily return to their stand-by state, however.)

• Setting parameters that have already been configured retain their settings.

• Auto-tuning is cancelled.

• After recovery from a power failure, control action resumes in the same mode as the

one before the occurrence of the power failure. The control output begins with the preset output value.

■ T roubleshooting when the Controller Fails to Operate Correctly

If your control tasks are not successful, check the preset parameters and controller wiring before concluding the controller to be defective. The following show some examples of troubleshooting you should refer to in order to avoid the possibility of other problems.

● The Controller does not Show the measured input (PV).

• The UT350/UT320 controllers have a universal input. The type of PV input can be set/changed using the parameter “IN”. At this point, the controller must be wired correctly according to the selected type of PV input. Check the wiring first if the controller fails to show the correct PV . To do this, refer to “2. Initial Settings.” With the parameters “RH”, “RL”, “SDP”, “SH” and “SL”, it is possible to scale the input signal and change its number of decimal places. Also check that these parameters are configured correctly .

4-3

● The Controller does not Provide any Control Output or the Control Output

does not Change at all.

• The UT350/UT320 controllers have a universal output. The type of control output can be set/changed using the parameter “OT”. At this point, the controller must be wired correctly according to the selected type of control output. Check the wiring first if the controller provides no control output. To do this, refer to “1.5 Terminal Wiring Diagrams.” With the parameters “OH” and “OL”, it is possible to set/change the high and low limits of control output. The control output may not change at all, however , because of restrictions on these parameters. Also check the restrictions on these parameters.

• The control output can only be changed when the controller is in the MAN mode. If the MAN lamp is off (i.e., the controller is in the AUTO mode), you cannot change the control output using key operation.

● The control output does not change soon after the target setpoint (SP) has

been changed.

• If this happens, check the setpoint of the parameter “C.MD”. In cases where fixedpoint control is selected as the PID control mode (C.MD = 1), tracking based on the Iterm works to prevent the control output from changing suddenly even if the target setpoint SP is varied. The control output therefore may appear to be working incorrectly at first; however it gradually adapts itself to the new target setpoint.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

4.2 Maintenance

This section describes the cleaning and maintenance of the UT350/UT320.

4.2.1 Cleaning

The front panel and operation keys should be gently wiped with a dry cloth.

NOTE

Do not use alcohol, benzine, or any other solvents.

4.2.2 Replacing Brackets

When the brackets are broken or lost, purchase the following brackets for replacement.

4-4

Target Model Part No. UT350 T9115NL UT320 T9115NK

4.2.3 Attaching T erminal Cover

When a terminal cover is necessary , purchase the following part.

Target Model Part No. UT350 T9115YD UT320 T9115YE

Sales Unit A large bracket and small bracket in pair Two small brackets in pair

Sales Unit 1 1

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Attaching T erminal Cover

The procedure for attaching the terminal cover is as follows.

Do not touch the terminals on the rear panel when power is being supplied to the controller . Doing so may result in electric shock.

4-5

CAUTION

Before attaching the terminal cover, turn of f the source circuit breaker and use a tester to check that the power cable is not conducting any electricity .

Before attaching the terminal cover, fold it once or twice so that the side which has the “Handle With Care” symbol ( ), is on the outside.

Fold over.

Grooved

Fold over.

Grooved

Folding Direction of Terminal Cover

Alert symbol on the back

NOTE

Do not fold the terminal cover the wrong way , doing so not only reduces the cover’s strength but may also cause the hinge to crack, thereby disabling attachment.

With the cover properly folded, fit its top and bottom holes to the protrusions of the

mounting brackets.

Fit the hole of the terminal cover to the protrusion on the mounting bracket.

Attaching Terminal Cover

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

4.2.4 Replacing Parts with a Limited Service Life

The following UT350/UT320 parts have a limited service life. The service life given in the table assume that the controller is used under normal operating conditions.

4-6

Part Aluminum electrolytic condenser EEPROM Alarm output relays About 100,000 more ON-OFF operations or with resistance load Control output relays About 100,000 more ON-OFF operations or with resistance load

About 10 years (rated) About 100,000 times of writings

Service life

If any of these parts, except control output relays, cause a controller failure due to deterioration, contact your dealer for replacement at your cost. Control output relays can be replaced by yourself.

4.2.5 Replacing Control Output Relays

This subsection describes how to replace the control output relays. The replacement must be performed by an engineer qualified for the work.

Always turn off the power before starting the work in order to avoid electric shock. Do not pull out the internal unit for any other purpose other than to replace the control

CAUTION

output relays.

Insert a flat-blade screwdriver (tip width of 6 mm is recommended) into the opening with

the tip in parallel with the front panel, and then turn the screwdriver gently . Take this procedure to four openings 1, 2, 3 and 4 (see the figure below) on the upper and lower parts of the bezel, in order . The bezel slightly moves forward from the housing.

4-7

Push up the center of the bottom gasket of bezel by a finger to release the latch.

Latch (invisible in the panel)

Center of the bottom gasket

Panel

View from the bottom

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Insert the screwdriver into the four openings and flip the tip forward to move the bezel

more forward.

Hold the bezel and pull it along with the internal unit out of the housing.

(Note) Be careful not to damage the RJC sensor.

The location and number of the relays differ depending on the model code of the UT350/

UT320. Confirm the location of the control output relay to be replaced before pulling out the relay .

4-8

Upper

Relay (UT350-0䊐 or UT320-0䊐)

Pull out the relay to be replaced.

The control output relays are easy to remove and mount, since they are connected via a socket onto the print boards.

Insert the new relay in the socket. Use the following relay .

Manufacturer OMRON

Model G6B-2114P-FD-US-P6B

Power supply 12 V DC

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Insert the internal unit into the housing.

Apply power to the controller and confirm that the initial operating display is shown. If the operating display is not shown properly , turn off the controller and pull out the internal unit. Then, insert it into the housing again.

This completes replacement of the control output relay .

4-9

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Blank Page

5. Parameters

This chapter contains a parameter map as a guideline for setting parameters, and lists of parameters for recording User Settings.

5.1 Parameter Map

5-1

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

UT350/UT320 Parameter Map

Operating Display

5-2

SET3S

SET

SET3S SET3SSET3S

OP.PA

SET

LL A1 A2 A3 AT

Not displayed when OT parameter set to 4 to 6. Displayed in automatic operation

SP.NO

PID

UPR

FL is displayed if you press the key

when PID = MENU.

DNR

Displayed for ON/OFF control

DR HB1 HB2 HC1 HC2

ORB ORH ORL

The setpoints of the ORB, ORH and ORL parameters are only effective when a sensor grounding alarm is used. The OR parameter represents the moving average (for 5 cycle times) of the control output and is not a setpoint.

1.SP

2.SP

3.SP

4.SP

SET

OUT displaySP display

Pressing the

3.P

3.I

3.D

3.MR

3.Pc

3.Ic

3.Dc

3.DB

SET/ENT

Pressing the

SET/ENT

key when PID = 4Gr causes PID for 4.SP to appear.

4.P

4.I

4.D

4.MR

4.Pc

4.Ic

4.Dc

4.DB RDV

Not displayed for ON/OFF control

Displayed when integral time is OFF

Displayed for heating/cooling control

Displayed when parameter ZON=ON

SET/ENT

To switch the parameter display, press the key.

Pressing the

SET/ENT

key when PID = 1Gr causes PID for 1.SP to appear.

1.P

1.I

1.D

1.MR

1.Pc

1.Ic

1.Dc

1.DB

Pressing the

SET/ENT SET/ENT

key when PID = 2Gr causes PID for 2.SP to appear.

2.P

2.I

2.D

2.MR

2.Pc

2.Ic

2.Dc

2.DB

key when

PID = 3Gr causes PID

for 3.SP to appear.

1.RP 2.RP

NOTE

Changing the registered value of a setup parameter may cause the registered value of an operating parameter to be initialized automatically. Thus, when you have changed a setup parameter, always check that the registered value of the operating parameter is appropriate. If it is initialized to default, reset it to the required value.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

5-3

STUP

SET

Password

check display

Control function

FUNC

SET SET

SPH SPL

AL1 AL2

AL3 HY1 HY2 HY3 DY1 DY2 DY3

CTc

POc

C.MD

ZON

TMU

P.SL BPS

PRI STP DLN

ADR RP.T

TEST

Password input

(No password is required when PWD = 0.)

SET

Not displayed when OT parameter set to 4 to 6.

Displayed for heating/cooling control.

Displayed only for controllers with communication functions.

This parameter is not to be set.

SET

SET3S

Press the key once. Press the key for 3 seconds. Press the or key once.

Setup Parameter Setting Display

SET/ENT

Input/Output

UNIT

SDP

RJC

BSL

OT RET RTH

RTL

DIS C.S1 C.S2 C.S3 C.S4

LOCK

PWD

I/O

When shipped from the factory, this parameter appears first after power-on.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

5.2 Lists of Parameters

* Parameters relating to PV or setpoints should all be set in real numbers.

For example, use temperature values to define target setpoints and alarm setpoints

for temperature input. * The “User Setting” column in the table is provided for the customer to record setpoints. * The column “Target Item in CD-ROM” in the table provides references from User’s

Manual (Reference) (CD-ROM version) which describes items in more detail and

items that are not contained in this manual. * Numbers in ( ) are the parameter setpoints that apply when the communication func-

tion is used. ex. OFF (0), ON (1)

■ Operating Parameters

5-4

Parameter

Symbol

(LL)

(A1)

(A2)

(A3)

(AT)

(SC)

(SP.NO)

(PID)

Name of Parameter Setting Range and Description Initial Value

LL communication interface selection

Alarm 1-setpoint

Alarm 2-setpoint

Alarm 3-setpoint

Auto-tuning

“Super” function

Target setpoint number selection

PID parameter display number

OFF (0): Communication is carried out via the RS485 communication terminals. ON (1):

Communication is carried out via the light-

loader adapter.

PV alarm / SP alarm: -100.0 to 100.0% of PV input range Deviation alarm: -100.0 to 100.0% of PV input range span Output alarm: -5.0 to 105.0% An alarm common to the 1.SP to 4.SP parameters.

OFF (0): No auto-tuning 1: Auto-tuning for 1.SP 2: Auto-tuning for 2.SP 3: Auto-tuning for 3.SP 4: Auto-tuning for 4.SP AUTO (5): Performs auto-tuning to all groups 1 to 4.

OFF (0): Disable

1: Overshoot suppressing function

Suppresses overshoots generated by abrupt changes in the target setpoint or by disturbances.

2: Hunting suppressing function (Stable mode)

Suitable to stabilize the state of control when the load varies greatly, or the target setpoint is changed. Enables to answer the wider characteristic changes compared with Response mode.

3: Hunting suppressing function (Response mode)

Enables quick follow-up and short converging time of PV for the changed target setpoint.

Note: Use “SUPER” function (SC) 2 or 3 in PID

control or PI control. “SUPER” function 2 or 3 is not available in the following controls:

1) ON/OFF control

2) P control (control for proportional band only)

3) PD control (control for proportional band and derivative item only)

4) Heating/cooling control

Do not use hunting suppressing function when control processes with response such as flow or pressure control.

0: Use target setpoint via communication. 1: Selects target setpoint 1 (1.SP). 2: Selects target setpoint 2 (2.SP). 3: Selects target setpoint 3 (3.SP). 4: Selects target setpoint 4 (4.SP).

MENU (0): Move to FL parameter display 1Gr (1) to 4Gr (4): Display of each PID parameter

with communication : OFF (0) without communication : ON (1)

PV high limit/SP high limit alarm:

100.0% of PV input range Deviation alarm: 0.0% of PV input range span Other PV/SP low limit alarm:

0.0% of PV input range Output high limit alarm: 100.0% Output low limit alarm: 0.0%

OFF (0)

MENU (0)

User Setting

Target Item in CD-ROM



Ref.2.1(5) Ref.2.1(6)

Ref.4.1(1)

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

5-5

Parameter

Symbol

(FL)

(BS)

(UPR)

(DNR)

(OH)

(OL)

(H)

(DR)

(HB1)

(HB2)

(HC1)

(HC2)

(ORB)

Name of Parameter Setting Range and Description Initial Value

PV input filter OFF (0), 1 to 120 second.

PV input bias -100.0% to 100.0% of PV input

Setpoint ramp-up-rate

Setpoint ramp-downrate

Output high limit Heating-side output high limit (in heating/cooling control)

Output low limit Cooling-side output high limit (in heating/cooling control) ON/OFF control hysteresis Heating-side/cooling-side ON/OFF control hysteresis (in heating/cooling control) Direct/reverse action switching

setpoint 1

Heater burnout current setpoint 2

Heater burnout current measurement 1

Heater burnout current measurement 2

ON/OFF rate detection band

ON/OFF rate high limit

Used when the PV input fluctuates.

range span Used to correct the PV input range.

OFF (0)

0.0% + 1 digit of PV input range span to 100.0% of PV input range span Set ramp-up-rate or ramp-down-rate per hour or minute. Sets unit in ramp-rate-time unit (TMU).

-5.0 to 105.0% Heating-side limiter in heating/cooling control: 0.0 to 105.0% (OL < OH)

-5.0 to 105.0% Cooling-side limiter in heating/cooling control: 0.0 to

105.0% (OL < OH) In ON/OFF control: 0.0 to 100.0% of PV input range span In heating/cooling control: 0.0 to 100.0%

0: reverse action, 1: direct action

OFF (0), or 1 to 50 A

These are not setpoints.

0.0 to 100.0% of PV input range span

ORL + 1 digit to 105.0% 100.0%

Reverse

action

Control output

100%

Direct action

Deviation

(PV-SP)

OFF (0)

0.0% of PV input range span

OFF (0)

100% Heating/cooling control:

100.0%

0.0% Heating/cooling control:

100.0% ON/OFF control: 0.5% of PV input range span Heating/cooling control: 0.5%

OFF (0)Heater burnout current

The current value of the heater burnout detector is shown on the display of the HC1 or HC2 parameter.

1.0% of PV input range span

User Setting

Target Item in CD-ROM

Ref.1.1(1)

Ref.4.1(4)

Ref.2.1(3)



Ref.2.1(1)

Ref.3.3(5)

(ORH)

(ORL)

(OR)

(1.SP)

(2.SP)

(3.SP)

(4.SP)

ON/OFF rate low limit

On/off rate This is not a setpoint. The moving average (for 5

Target setpoint-1

Target setpoint-2

Target setpoint-3

Target setpoint-4

-5.0% to ORH - 1 digit 0.0%

cycle times) of the control output is shown.

0.0 to 100.0% of PV input range However, between target setpoint limiter lower limit (SPL) and upper limit (SPH).

0.0% of PV input range

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Ref.3.3(4)

Ref.4.1(1)

● PID-related Parameters

The following parameters are displayed when “1Gr” is set to PID parameter display number (PID).

In this case, the corresponding target setpoint is 1.SP (target setpoint-1). To set PID corresponding to target setpoint 2 to 4, set “2Gr”, “3Gr”, or “4Gr” to PID. The

relevant parameters will then be displayed.

5-6

Parameter

Symbol

(1.P)

(1.I)

(1.D)

(1.MR)

(1.Pc)

(1.Ic)

(1.Dc)

(1.DB)

Name of Parameter Setting Range and Description Initial Value

Proportional band/Heatingside proportional band (in heating/cooling control)

Integral time Heating-side integral time (in heating/cooling control)

Derivative time Heating-side derivative time (in heating/cooling control)

Manual reset

Cooling-side proportional band

Cooling-side integral time

time

Deadband

0.1 to 999.9% In heating/cooling control: 0.0 to 999.9% (heating-side ON/OFF control applies when 0.0)

OFF (0), 1 to 6000 second.

-5.0 to 105.0% (enabled when integral time “1.I” is OFF) The manual reset value equals the output value when PV = SP is true. For example, if the manual reset value is 50%, the output value is 50% when PV = SP becomes true.

0.0 to 999.9% (Cooling-side ON/OFF control applies when

0.0) OFF (0), 1 to 6000 second. 240 second.

-100.0 to 50.0% In heating/cooling control, a reagion where both of the heating- and cooling-side outputs are presented, or non of them is presented, can be set.

5.0%

240 second.

60 second.

50.0%

5.0%

60 second.OFF (0), 1 to 6000 second.Cooling-side derivative

3.0%

User Setting

Target Item in CD-ROM

Ref.4.1(1)

(1.RP)

(RDV)

Zone PID reference point-1

0.0 to 100.0% of PV input range. Note that 1.RP  2.RP.

100% value of PV input range

Refer to the table below for recording setpoints when two sets or more of PID parameters are used.

Parameter n=2 n=3 n=4 n.P n.I n.D n.MR n.Pc n.Ic n.Dc n.DB n.RP

Reference deviation

None None

OFF (0), 0.0 to100.0% of PV input range span Used to select PID constants according to a deviation from the setpoint. The 4th group of PID constants is used when the controller fails to keep track of the deviation.

OFF (0)

Ref.4.1(1)

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Auto-tuning

Auto-tuning is a function with which the controller automatically measures the process characteristics to automatically set the optimum PID constants. This function does not work when the controller is performing on-off control. The UT350/UT320 employ the “Limit Cycle Method.” As shown in the figure below , the controller temporarily changes its control output in a step-waveform manner. Then, it calculates the optimum proportional band (P), integral time (I) and derivative time (D) from the resulting response to set them in their respective parameters.

5-7

Setpoint

PV input value

Control output

auto-tuning

Start of

Interval of auto-tuning

Off

Auto-tuning is complete when the 3rd peak arrives.

PID control based on

PID constants determined

by auto-tuning

Time

If the Output High Limit (OH) and Output Low Limit (OL) parameters are already configured, the control output turns on and off only between the output’s high and low limits during auto-tuning.

● Auto-tuning Using Zone PID (see “■ PID Switching (Zone PID)” later in

this chapter)

Setting of

AT Parameter OFF - Auto-tuning is turned off (disabled). 1 Determines the values of 1.P, 1.I and 1.D parameters by auto-tuning. 2 Determines the values of 2.P, 2.I and 2.D parameters by auto-tuning. 3 Determines the values of 3.P, 3.I and 3.D parameters by auto-tuning. 4 AUTO Median value of each zone

Auto-tuned Setpoint

The setpoints when autotuning is started

Determines the values of 4.P, 4.I and 4.D parameters by auto-tuning. Determines the values of all PID parameters in use by auto-tuning.

width

Remarks

The AT parameter settings numbered 1 to 4 in the table above are dependent on how many zones have been set. For example, if you have set two zones, you can use AT parameter settings 1 and 2. Likewise, if you have set three zones, you can use AT parameter settings 1, 2 and 3.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Hysteresis (for T arget Setpoints (On-Off Control) and Alarm Setpoints)

Hysteresis can be set in on-off control setpoints and alarm setpoints as well. With the hysteresis settings, it is possible to prevent relays from chattering.

• When hysteresis is set in a target setpoint

5-8

Output

Point of on-off action

(Target setpoint)

Off

Hysteresis

PV value

• When hysteresis is set in an alarm setpoint

Example of hysteresis set in PV high limit alarm

Output

Off

Point of on-off action

(Alarm setpoint)

Hysteresis

PV value

■ T arget Setpoint Ramp Setting Function

Use this function to prevent the target setpoint from changing suddenly . The ramp setting function works when:

[1] the target setpoint is changed (example: change in “1.SP” from 100°C to 150°C); [2] the target setpoint number is switched (example: switch from “1.SP” to “3.SP”); [3] the power is turned on or the controller is recovered from power failure; [4] a change is made from manual operation to automatic operation; or [5] a change is made from the STOP state to the RUN state.

If the target setpoint before switching is smaller than the target setpoint after switching, the controller operates according to the settings of the Setpoint Ramp UP (UPR) and Ramp Time Unit (TMU) parameters. If the target setpoint before switching is greater than the target setpoint after switching, the controller operates according to the settings of the Setpoint Ramp Down (DNR) and Ramp Time Unit (TMU) parameters.

NOTE

When using target setpoint ramp setting function, PV tracking works in case of the above conditions [2] to [5].

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

The figure below shows an example when the Target Setpoint Number (SP .NO) parameter is switched. The 1.SP and 2.SP parameters are set to 500°C and 640°C, respectively . Thus, there is a temperature difference of 140°C between the 1.SP and 2.SP parameters. This example shows how the temperature is changed by as much as this temperature difference over a period of two minutes. In this example, the UPR parameter is 70°C and the TMU parameter is 1 minute.

1.SP 2.SP

5-9

2.SP=640

1.SP=500

°C

140°C temperature difference

°C

Switching from 1.SP to 2.SP parameter

■ PID Switching (Zone PID)

Using a zone PID, you can automatically switch between groups of PID constants according to the temperature zone. You can set a maximum of three temperature zones.

Maximum value of PV

input range (RH)

Reference point 2

(2.RP)

Reference point 1

(1.RP)

Minimum value of PV

input range (RL)

Setpoint

2-minute interval of temperature rise

PV input value

70°C/min (140°C/2 min) rate of temperature change

NOTE

When using target setpoint ramp setting function, PV tracking works in case of the above conditions [2] to [5].

Zone 3: Operated with 3rd group of PID constants

Zone 2: Operated with 2nd group of PID constants Zone 1: Operated with 1st group of PID constants

Time

[1] Set the Zone PID Selection (ZON) parameter to “ON”. [2] Define a reference point.

When using two zones, define only reference point 1 (1.RP) between the minimum and maximum values of the PV input range. When using three zones, define reference points 1 and 2 (1.RP and 2.RP) in the same way as noted above.

NOTE

Set the maximum and minimum values, as close as possible to those of the actual range to be controlled, in the Maximum V alue of PV Input Range (RH) and Minimum Value of PV Input Range (RL) parameters. Otherwise, the controller may fail to determine the optimum values when auto-tuning is carried out.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Setup Parameters

● Control Function-related Parameters

5-10

Parameter

Symbol

(SPH)

(SPL)

(AL1)

(AL2)

(AL3)

(HY1)

(HY2)

(HY3)

(DY1)

(DY2)

(DY3)

(CT)

(CTc)

(PO)

(POc)

Name of Parameter Setting Range and Description Initial Value

Target setpoint limiter upper limit

Target setpoint limiter lower limit

Alarm-1 type 1

Alarm-2 type 2

Alarm-3 type 1

Alarm-1 hysteresis

Alarm-2 hysteresis

Alarm-3 hysteresis

Alarm-1 delay timer

Alarm-2 delay timer

Alarm-3 delay timer

Control output cycle time Heating-side control output cycle time (in heating/cooling control)

Cooling-side control output cycle time

Preset output/Heating-side preset output (in heating/cooling control)

Cooling-side preset output

0.0 to 100.0% of PV input range where, SPL < SPH Places a limit on the range within which the target setpoint is changed.

OFF (0), 1 to 25, 28 to 31 1: PV high limit (energized, no stand-by action) 2: PV low limit (energized, no stand-by action) 3: Deviation high limit (energized, no stand-by action) 4: Deviation low limit (energized, no stand-by action) 5: Deviation high limit (de-energized, no stand-by action) 6: Deviation low limit (de-energized, no stand-by action) These Alarm Type parameters are common to the parameters 1.SP to 4.SP. See “2.5 Changing Alarm Type” for other alarm types.

0.0 to 100.0% of PV input range span Output alarm: 0.0 to 100.0%

Hysteresis for PV high limit alarm

Point of ON/OFF action

Output

An alarm is output when the delay timer expires after the alarm setpoint is reached.

0.00 to 99.59 (min, sec.) (enabled when alarm-1 type “AL1” is 1 to 20 or 28 to 31)

Alarm setpoint

Alarm output

0.00 to 99.59 (min, sec.) (enabled when alarm-2 type “AL2” is 1 to 20 or 28 to 31)

0.00 to 99.59 (min, sec.) (enabled when alarm-3 type “AL3” is 1 to 20 or 28 to 31)

1 to 1000 second. 30 second.

-5.0 to 105.0% In heating/cooling control: Heating side 0.0 to 105.0% In Stop mode, fixed control output can be generated.

0.0 to 105.0% In Stop mode, cooling-side fixed control output can be generated.

Off

(Alarm setpoint)

Hysteresis

PV value

Delay timer

off

Delay timer

Hysteresis

Time

100.0% of PV input range

0.0% of PV input range

0.5% of PV input range span Output alarm:

0.5%

0.00

0.0%

User Setting

Target Item

in CD-ROM



Ref.3.3(4)

Ref.3.3(2)



Ref.3.3(4)



Ref.2.1(8)

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

5-11

Parameter

Symbol

(C.MD)

(ZON)

(AR)

(TMU)

(P.SL)

(BPS)

(PRI)

Name of Parameter Setting Range and Description Initial Value

PID control mode

Zone PID selection OFF: SP selection

(Excess integration prevention)

Ramp-rate time unit setting

Protocol selection 0

Baud rate 0: 600, 1: 1200, 2: 2400, 3: 4800, 4: 9600 (bps) 4

Parity 0: None

Stop bit 1, 2 1

0: Standard PID control (with output bump at SP change) 1: Fixed Point control (without output bump at SP change) Choose “Fixed Point Control” when controlling pressure or flow rate.

ON: Zone PID

AUTO (0), 50.0 to 200.0% Used when the control output travels up to 100% or down to 0% and stays at this point. The larger SP, the sooner PID computation (integral computation) stops.

0: hour, 1: minute Time unit of setpoint ramp-up (UPR) and setpoint ramp-down (DNR)

0: PC link communication 1: PC link communication (with sum check) 2: Ladder communication 3: Coordinated master station 4: Coordinated slave station 7: MODBUS (ASCII) 8: MODBUS (RTU) 10: Coordinated slave station (loop-1 mode) 11: Coordinated slave station (loop-2 mode)

1: Even 2: Odd

OFF

AUTO (0)Anti-reset windup

User Setting

Target Item

in CD-ROM

Ref.2.1(2)

Ref.4.1(2)

Ref.2.1(4)

Ref.4.1(4)

Communication

function

(STP)

(DLN)

(ADR)

(RP.T)

(TEST)

Data length

Address 1 to 99

Minimum response time

If this parameter symbol appears, press the SET/ENT key to return to the FUNC menu. Caution: Do not change the setpoint of the TEST parameter, otherwise the controller will be disabled.

7, 8; Fixed at 7, when the P.SL parameter is set to MODBUS (ASCII). Fixed at 8, when the P.SL parameter is set to MODBUS (RTU) or Ladder Communication.

However, the maximum number of stations connectable is 31.

0 to 10 ( 10 ms) 0

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

● Input-/Output-related Parameters

5-12

Parameter

Symbol

(IN)

(UNIT)

(RH)

(RL)

(SDP)

(SH)

(SL)

(RJC)

(BSL)

(OT)

Name of Parameter Setting Range and Description Initial Value

PV input type (PV INPUT terminals)

- - terminals

131211

PV input unit °C (0): Degree Celsius F (5): Fahrenheit

Max. value of PV input range

Min. value of PV input range

PV input decimal point position (displayed at voltage input)

Max. value of PV input scale (displayed at voltage input)

Min. value of PV input scale (displayed at voltage input)

Presence/absence of PV input reference junction compensation

Selection of PV input burnout action

Control output type

OFF (0), 1 to 18, 30, 31, 35 to 37, 40, 41, 50, 51, 55, 56 See “Instrument Input Range Codes” in “2. Initial Settings.”

- (2): No unit (This parameter is not shown for voltage input.)

Set the PV input range, however RL < RH

-Temperature input Set the range of temperature that is actually controlled.

- Voltage input Set the range of a voltage signal that is applied. The scale across which the voltage signal is actually controlled should be set using the parameters Maximum Value of PV Input Scale (SH) and Minimum Value of PV Input Scale (SL).

0 to 3 Set the position of the decimal point of voltage-mode PV input. 0: No decimal place 1: One decimal place 2,3: Two, three decimal places

Set the read-out scale of voltage-mode PV input.

OFF (0), ON (1)

OFF (0) 1: Up scale 2: Down scale

Time proportional PID relay contact output (terminals - - )

Time proportional PID voltage pulse output (terminals - )

Current output (terminals - ) ON/OFF control relay contact output (terminals - - )

The following 4 to 12 are displayed only for heating/ cooling type controllers.

Heating-side relay output (terminals - - ), cooling-side relay output (terminals - )

Heating-side pulse output (terminals - ), cooling-side relay output (terminals - )

Heating-side current output (terminals - ), cooling-side relay output (terminals - )

Heating-side relay output (terminals - - ), cooling-side pulse output (terminals - )

Heating-side pulse output (terminals - ), cooling-side pulse output (terminals - )

Heating-side current output (terminals - ), cooling-side pulse output (terminals - )

Heating-side relay output (terminals - - ), cooling-side current output (terminals - )

Heating-side pulse output (terminals - ),

cooling-side current output (terminals - )

Heating-side current output (terminals - ),

cooling-side current output (terminals - )

1716

321

1716

321

1514

1716

1514

1716

1514

321

1514

1716

1514

1716

1514

OFF (0)

°C (0)

Max. value of instrument input range

Min. value of instrument input range

100.0-1999 to 9999, however SL < SH

0.0

ON (1)

321

1716

321

Heating/cooling type: 4

User Setting

Target Item

in CD-ROM



IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

5-13

Parameter

Symbol

(RET)

(RTH)

(RTL)

(DIS)

(C.S1)

(C.S2)

(C.S3)

(C.S4)

(LOCK)

(PWD)

Name of Parameter Setting Range and Description Initial Value

Retransmission output type

Max. value of retransmission output scale

Min. value of retransmission output scale

DI function selection 1

OFF (0): Does not work. 1: PV, 2: SP, 3: OUT, 4: Loop power supply for sensor (15 V) In heating/cooling control, an output value before allocation to heating and cooling control (0 to 100%) is transmitted if setpoint “3” is selected (0 to 50%: Cooling-side output; 50 to 100%: Heating-side output).

RET=1, 2: RTL + 1 digit to 100.0% of PV input range RET=3: RTL + 1 digit to 100.0%

RET=1, 2: 0.0% of PV input range to RTH - 1 digit RET=3: 0.0% to RTH - 1 digit

Disables the external contact input.

OFF (0)

DI1: 2.SP (on)/1.SP (off), DI2: AUTO (on)/MAN (off)

DI1: Hides (on)/shows (off) the LOCK setup parameter. DI2: Unused.

See the table below.

DI1: 2.SP (on)/1.SP (off), DI2: STOP (on)/RUN (off)

100.0% of PV input range

0.0% of PV input range

• SP Selection when DIS = 3 is set

DI1 DI2

1.SP

2.SP

3.SP

4.SP

SELECT display-1 registration

SELECT display-2 registration

SELECT display-3 registration

SELECT display-4 registration

Key lock

Password setting 0: Password not set

OFF ON OFF ON ON

OFF OFF ON

OFF (0), 201 to 1015 Select the desired parameter from among the operating and setup parameters, then register the number (D register No.) accompanying that parameter. For example, registering “231” for C.S1 allows you to change alarm-1 setpoint in operating display. Numbers for registering alarm SP parameter for operating display:

Alarm-1 setpoint: 231 Alarm-2 setpoint: 232 Alarm-3 setpoint: 233

Above numbers are alarm setpoint parameters for target setpoint-1 (1.SP).

OFF (0): No key lock 1: Change to any parameter prohibited

Prohibits any operating parameter or setup parameter from being changed. The setpoint of the LOCK parameter itself can be changed, however.

2: Change to and display of operating parameters prohibited

Turns off the display for setting operating parameters, thus prohibiting any change to the parameter settings. (Hold down the SET/ENT key for more than 3 seconds to show the password check display.)

3: Disables the A/M key on the instrument’s front panel.

1 to 9999

OFF (0)

User Setting

Target Item

in CD-ROM

Ref.2.2(1)

Ref.3.1(1)

Ref.6.1(1)

Ref.7.1(2)

Ref.7.1(1)

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Useful Operating Displays (SELECT Display)

Registering frequently changed parameters in the SELECT display after ordinary operating displays will allow you to change settings easily . A maximum of four displays can be registered.

Useful

operating display

Ordinary operating displays (example)

(SELECT display)

5-14

SET/ENT

A/M

AL123

234

MAN

SET/ENT

SP display OUT display

key

SET/ENT

A/M

AL123

234

MAN

SET/ENT

key

SET/ENT

A/M

AL123

234

MAN

Alarm-1 setting

display (example)

SET/ENT

key

Set the parameter numbers (D register numbers) you wish to register for setup parameters C.S1 to C.S4.

Alarm parameter for target setpoint-1 Registration number Alarm-1 setpoint parameter Alarm-2 setpoint parameter Alarm-3 setpoint parameter

231 232 233

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Heating/Cooling Control (for a Heating/Cooling Controller Only)

In heating/cooling control, the controller outputs the result of computation after splitting it into heating-purpose and cooling-purpose signals. In addition, the controller can perform PID control or on-off control on the heating and cooling sides separately. When performing on-off control, set the proportional band to “0”.

The controller splits the result of computation (0 to 100%) into heating-side and coolingside signals, as described below.

• 0% to 50% of the computation result is presented as a 0% to 100% cooling-side output.

• 50% to 100% of the computation result is presented as a 0% to 100% heating-side output.

5-15

PID computation

0% to 100%

Heating/cooling

computation

0% to 50%

Cooling-side output limiter

Cooling-side MV

output 0% to 100%

Heating-side

output limiter

Heating-side MV

output 0% to 100%

Communication

Manual MV output

50% to 100%

Heating/cooling control provides two methods in which either none of the heating- and cooling-side outputs are presented or both of the heating- and cooling-side outputs are presented, as shown in the following figures.

Output (%) 100

Cooling-side output

Heating-side output

Cooling-side output

Output (%) 100

Heating-side output

Value of control output before split into heating- and

cooling-side outputs

100(%) 100(%)50

Value of control output before split into heating- and

Deadband (negative)Deadband (positive)

cooling-side outputs

Precautions in Heating/Cooling Control

• Keep the ratio of the heating-side proportional band (P) to the cooling-side proportional band (Pc) equal to or below 5.

• If neither the heating side nor the cooling side is performing on-off control, setting the integral time (I or Ic) of one side to “0” results in the Integral T ime parameters of both sides being set to “OFF”, irrespective of the integral time setting of the other side.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Cycle Time

A cycle time can only be set if the type of control output is time proportional PID relay output or time proportional voltage pulse output.

A cycle time refers to one period consisting of on-and of f-state time lengths. The ratio of the on-state time to the off-state time differs according to the value of the

control output. The figure below shows on-to-off time ratios of the control output when the cycle time is set

to 10 seconds. Setting a shorter cycle time allows the controller to perform elaborate control at short time intervals. This significantly reduces the on-and off-state times, however it shortens the service life of a relay .

5-16

Off

Cycle time

Off

Cycle time

Relay’s Behavior when Cycle Time = 10 sec.

For 20% of Control Output For 50% of Control Output For 80% of Control Output

10 sec.

On-state duration: 2 sec. Off-state duration: 8 sec.

10 sec. 10 sec.

On-state duration: 5 sec. Off-state duration: 5 sec.

On-state duration: 8 sec. Off-state duration: 2 sec.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

6. Function Block Diagram and Descriptions

This chapter contains the function block diagrams for “Standard type,” and “Heating/cooling type.” For details on these function block diagrams, refer to the descriptions mentioned later.

6-1

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Function Block Diagram for Standard T ype

6-2

PV input terminals

12 1311

, and

PV INPUT

Input selection

Unit selection

Input range conversion

Input bias Input filter

Communication

terminals to

RS485

Control computationManual operation

A/M

2723

LOCALREMOTE

SP.NO=0 SP.NO=1 to 4

Target setpoint

ramp-rate function

AUTOMAN

AUTO (ON)/MAN (OFF) switching

Contact input

DI1 DI2

SP.NO

Target setpoints 1 to 4

Preset output Output limiter

STOP

RUN

24 V loop

power supply

Control

output

LPS

OUTPUT1 OUTPUT1

Terminals

and

Current or pulse

terminals

1716

and

terminals

, and

*1: If the setup parameter DIS (DI function selection) is set to “4”,

when the contact input 2 is ON (stop state), that controller outputs the preset output value.

Terminal Parameter Function

Legend

Analog signal Contact signal Front panel key

Relay

2 31

15 V loop

power supply

terminals

Retransmission

OUTPUT2

/RET

Current

1514

and

output

RET

Alarm function

AL3AL2AL1

Alarm 1 Alarm 2 Alarm 3

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Function Block Diagram for Heating/Cooling T ype

6-3

PV input terminals

12 1311

, and

PV INPUT

Input selection

Unit selection

Input range conversion

Input bias Input filter

Communication

terminals to

RS485

Control computationManual operation

A/M

2723

LOCALREMOTE

SP.NO=0

SP.NO=1 to 4

Target setpoint

ramp-rate function

AUTOMAN

AUTO (ON)/MAN (OFF) switching

Contact input

DI1 DI2

SP.NO

Target setpoints 1 to 4

Heating-side

preset output

OUTPUT1 OUTPUT1

Current or pulse

terminals

and

Heating/cooling

computation

Heating-side

output limiter

Cooling-side

output limiter

*1 *1

Heating-side

Cooling-side

output

OUTPUT2

/RET

1716

Relay

terminals

2 31

, and

Current or pulse

terminals

1514

and

*1: If the setup parameter DIS (DI function selection) is set to “4”,

when the contact input 2 is ON (stop state), that controller outputs the preset output value.

output

AL3

Relay

Cooling-side preset output

15 V loop

power supply

terminals

Retransmission

OUTPUT2

/LPS

Current

1514

and

output

RET

Alarm function

AL2AL1

Alarm 1 Alarm 2

Legend

Terminal Parameter Function Analog signal Contact signal Front panel key

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

6-4

Functions and Parameters for “Standard Type” in Initial State (Factory-set

default)

Functions and parameters in initial state are given in the tables below. For details on each parameter, refer to “5.2 Lists of Parameters.”

■ PV Input

PV input (INPUT) is a universal input, which can receive signals from thermocouple, RTD, or DC voltage signals. The controller is capable of biasing, and first-order lag computation (filtering) on input signals.

Each function can be set by the following parameters.

Setup Parameters

Input selection IN Unit selection UNIT Input range conversion RH, RL (SDP, SH, SL)

Operating Parameters

PV input bias BS OP.PA PV input filter FL OP.PA

■ Remote Input

Remote input can be received via communication. Set “0” in the parameter SP.NO (target setpoint number selection) for remote input. For more information, refer to GREEN Series Communication Functions (IM 05G01B02-01E).

Each function can be set by the following parameters.

Operating Parameters

Function Parameter

Function Parameter Menu

Menu I/O I/O I/O

Function Parameter

Target setpoint number selection

SP.NO OP.PA

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Contact Input

Changing the setpoint of the parameter DIS (DI function selection) allows you to change the function of contact input.

● When DIS=OFF

No function for contact input.

● When DIS=1 (factory-set default)

Target setpoint 2 (ON)/Target setpoint 1 (OFF) switching function is assigned to DI1 (contact input 1).

Automatic (ON)/Manual (OFF) switching function is assigned to DI2 (contact input 2). Manipulated output can be changed using the and keys in manual mode.

● When DIS=2

Hide (ON)/Show (OFF) the parameter LOCK (key lock) switching function is assigned to DI1 (contact input 1).

No function is assigned to DI2 (contact input 2).

6-5

● When DIS=3

It is possible to select one out of four setpoints by turning the two contact input signals ON or OFF. This function is assigned to DI1 (contact input 1) and DI2 (contact input 2).

Contact

input

DI1 DI2

For example, set contact input 1 (DI1) only to “ON” to change target setpoint 1 to 2. Set contact inputs 1 (DI1) and 2 (DI2) to “ON” to select target setpoint 4.

Target setpoint number to be selected (SP.NO)

1 OFF OFF

OFF

4 ON ON

● When DIS=4

Target setpoint 2 (ON)/Target setpoint 1 (OFF) switching function is assigned to DI1 (contact input 1).

Run (OFF)/Stop (ON) switching function is assigned to DI2 (contact input 2). Preset output value is output when the operation is stopped. PV input and alarms remain functioning as normal.

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ T arget Setpoint and PID

It is possible to use a maximum of four groups of target setpoints and PID parameters. The target setpoint can be selected by key operation or contact input. For selection by contact input, refer to “Contact Input.”

Operating Parameters

6-6

Function Parameter Target setpoint number selection Target setpoints 1 to 4 n.SP Proportional band (P) n.P Integral time (I) n.I Derivative time (D) n.D

Note: Parameters n.SP , n.P, n.I, n.D (n=1 to 4) correspond to the target setpoint number selected in the target setpoint

number selection (SP.NO).

SP.NO

Menu OP.PA OP.PA OP.PA OP.PA OP.PA

The target setpoint ramp rate setting function prevents the target setpoint form changing suddenly . It is possible to set the upward and downward changing rate (i.e., ramp rate) independently in the parameters UPR and DNR. The unit of the ramp rate (hour , or minute) is specified in TMU.

Setup Parameters

Function Parameter

Ramp-rate time unit setting TMU FUNC

Operating Parameters

Function Parameter

Target setpoint ramp-rate setting

UPR, DNR OP.PA

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Control Output

Control output (OUTPUT1) selects the output type among the current output, voltage pulse output, and relay contact output signal.

Preset output value is output when the operation is stopped by key operation or contact input, which takes priority over the manual operation.

Each function can be set by the following parameters.

Setup Parameters

6-7

Control output type selection OT Control output cycle time CT Preset output PO FUNC

Operating Parameters

Output limiter OL, OH OP.PA

■ Contact Output

Alarm 1 is output via DO1 (contact output 1). Alarm 2 is output via DO2 (contact output 2). Alarm 3 is output via DO3 (contact output 3).

Setup Parameters

Alarm 1 type AL1 Alarm 2 type AL2 Alarm 3 type AL3

Function Parameter

Menu I/O FUNC

Menu FUNC FUNC FUNC

Operating Parameters

Function Parameter Alarm 1 setpoint A1 Alarm 2 setpoint A2 Alarm 3 setpoint A3

Menu OP.PA OP.PA OP.PA

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

■ Retransmission Output

PV , target setpoint, or control output can be output to retransmission output (OUTPUT2/ RET).

Each function can be set by the following parameters.

Setup Parameters

6-8

Function Parameter Retransmission output type RET Retransmission output scale RTH, RTL

■ 15 V DC Loop Power Supply

The 15 V DC loop power supply (OUTPUT2/RET) uses the same terminal as retransmission output. The 15 V DC loop power supply can not be used when retransmission output is used. To use the 15 V DC loop power supply, set “4” in retransmission output type selection parameter RET.

Each function can be set by the following parameters.

Setup Parameters

Function Parameter Retransmission output type RET I/O

Menu I/O I/O

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

Revision Information

● Title : Models UT350/UT320 Digital Indicating Controllers User’s Manual

● Manual No. : IM 05D01D02-41E

May 2000/1st Edition

Newly published

May 2002/2nd Edition

Revision

Written by Yokogawa M&C Corporation

Published by Yokogawa M&C Corporation

2-9-32 Nakacho, Musashino-shi, Tokyo 180-8750, JAPAN

IM 05D01D02-41E 2nd Edition : Sep 20,2002-00

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YOKOGAWA M&C CORPORATION Headquaters

2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 JAPAN Phone: +81-422-52-5066 Facsimile: +81-422-51-8421

International Sales Dept.

Musashino Center Bldg. 2-9-32, Nakacho, Musashino-shi, Tokyo, 180-0006 JAPAN Phone: +81-422-52-5716 Facsimile: +81-422-55-8954

Sales Branch Offices

Tokyo, Nagoya, Osaka, Fukuoka

YOKOGAWA CORPORATION OF AMERICA Headquaters

2 Dart Road, Newnan, GA. 30265-1094 U.S.A. Phone: +1-770-253-7000 Facsimile: +1-770-251-2088 Sales Branch Offices / Texas, Phoenix, Chicago, Detroit, Los Angeles, New Jersey, Ollahoma

YOKOGAWA EUROPE B. V. Headquaters

Databankweg 20, Amersfoort 3821 AL THE NETHERLANDS Phone: +31-334-64-1611 Facsimile: +31-334-64-1610 Sales Branch Offices / Houten (Netherlands), Wien (Austria), Zaventem (Belgium), Ratingen (Germany), Madrid (Spain), Bratislava (Slovakia), Runcorn (United Kingdom), Milano (Italy), Velizy villacoublay(France), Johannesburg(Republic of South Africa)

YOKOGAWA AMERICA DO SUL S.A. Headquarters & Plant

Praca Acapulco, 31-Santo Amaro, Sao Paulo/SP, CEP-04675-190 BRAZIL Phone: +55-11-5681-2400 Facsimile: +55-11-5681-1274/4434

YOKOGAWA ENGINEERING ASIA PTE. LTD. Head office

5 Bedok South Road, 469270 SINGAPORE Phone: +65-241-9933 Facsimile: +65-241-2606

YOKOGAWA ELECTRIC KOREA CO., LTD. Head office

395-70, Shindaebang-dong, Dongjak-gu, Seoul,156-010, KOREA Phone: +82-2-3284-3021 Facsimile: +82-2-3284-3016

YOKOGAWA TAIWAN CORPORATION Head office

17F, No.39, Sec. 1, Chung Hwa Road Taipei, 100 TAIWAN Phone: +886-2-2314-9166 Facsimile: +886-2-2314-9918

YOKOGAWA AUSTRALIA PTY. LTD. Head office

Centre Court D1, 25-27 Paul Street North, North Ryde, N. S. W. 2113, AUSTRALIA Phone: +61-2-9805-0699 Facsimile: +61-2-9888-1844

YOKOGAWA BLUE STAR LTD. Head office

40 / 4 Lavelle Road, Bangalore, 560 001, INDIA Phone: +91-80-227-1513 Facsimile: +91-80-227-4270

LTD. YOKOGAWA ELECTRIC Headquarters

Grokholskiy per. 13, Build. 2, 4th Floor, 129090, Moscow, RUSSIA FEDERATION Phone: +7-095-737-7868 Facsimile: +7-095-737-7869

SIM1E-2002.6

Printed in Japan

Yokogawa UT350 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

1. Installation

1.1 Model and Suffix Codes

1.2 How to Install

1.3 How to Connect Wires

1.4 Hardware Specifications

1.5 T erminal Wiring Diagrams

2. Initial Settings

2.1 Names and Functions of Front Panel Parts

2.2 Setting PV Input T ype (Setting First at Power-on)

2.3 Changing PV Input T ype

2.4 Setting Control Output T ype

2.5 Changing Alarm T ype

2.6 Description of Multiple Setpoints and PID

3. Operations

3.1 Monitoring-purpose Operating Displays A vailable during Operation

3.2 Setting T arget Setpoint (SP)

3.3 Performing/Canceling Auto-tuning

3.4 Setting PID Manually

3.5 Setting Alarm Setpoints

3.6 Selecting T arget Setpoint Numbers (SP.NO)

3.7 Switching between Run and Stop

3.8 Switching between AUT O and MAN

3.9 Manipulating Control Output in Manual Operation

4. T roubleshooting and Maintenance

4.1 T roubleshooting

4.2 Maintenance

4.2.1 Cleaning

4.2.2 Replacing Brackets

4.2.3 Attaching T erminal Cover

4.2.4 Replacing Parts with a Limited Service Life

4.2.5 Replacing Control Output Relays

5. Parameters

5.1 Parameter Map

5.2 Lists of Parameters

6. Function Block Diagram and Descriptions

Revision Information