Panasonic KT4R, KT9R, KT8R User Manual

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Preface

Thank you for purchasing the Temperature controllers KT4R / KT8R / KT9R. This User’s Manual
containsinstructions for mounting, functions, operations and notes when operatingthe KT4R, KT8R, KT9R. To
prevent accidents arising from the misuse of this controller, pleaseensure the operator receives this manual.

Abbreviations used in thismanual

Abbreviation Term

PV Process variable
SV Desired value
MV Manipulated variable
DV Deviation
OUT1 Control output OUT1
OUT2 Control output OUT2
AT Auto-tuning

Characters usedinthismanual

Indication
Number, / -1 0 1 2 3 4 5 6 7 8 9
Indication
Alphabet A B C D E F G H I J K L M
Indication
Alphabet N O P Q R S T U V W X Y Z

Notes

• This instrument should be used in accordance with the specifications described in the manual.
If it is not used according to the specifications, it may malfunction or cause a fire.

• Be sure to follow the warnings, cautions and notices. If they are not observed, serious injury or malfunction

may occur.

• The contents of this instruction manual are subject to change without notice.

• Care has been taken to ensure that the contents of this instruction manual are correct, but if there are any

doubts, mistakes or questions, please inform our company.

• Measures must be taken to ensure that the operator cannot touch power terminals or other high voltage

sections.

• Any unauthorized transfer or copying of this document, in part or in whole, is prohibited.

• Panasonic Industrial Devices SUNX Co., Ltd. is not liable for any damage or secondary damage(s)

incurred as a result of using this product, including any indirect damage.

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Safety Precautions(Be sure to observetheseprecautionsto prevent injury or accidents.)

Thesafety precautionsareclassified into2 categories: “Warning”and “Caution”.

Warning

Warning

• Take safety measures externally to keep the whole system safe in the event of a malfunction of this
instrument or any problem due to external factors.

• Avoid using this instrument where it may be exposed to combustible gases. This may cause an explosion.

• Do not dispose of this instrument in a fire. Batteries or electronic components may explode or leak.

Caution

• Toensure safeandcorrectuse,thoroughly read andunderstandthismanual beforeusingthisinstrument.

•Panasonic Industrial Devices SUNX Co., Ltd. is not liable for any damage or secondary damage(s)
incurred as a result of using this product, including any indirect damage.

•Externalprotectiondevices,suchasprotectiveequipmentagainstexcessive temperature rise, etc.,mustbe
installed to avoidseriousdamagetothesystemorinjurytopersonnel ifmalfunctionofthisproductoccurs.

•Installanemergency stop circuit orinterlock circuit externally.

•Thisinstrumentmustbeusedundertheconditions andenvironmentdescribed inthismanual.

•Topreventgeneration ofabnormalheator smoke,allowforsomeheadroomin performance valuesand guaranteed
values, asstatedintheinstrument’sspecifications.

•Donotdisassembleor modifythisinstrument.This maycause generationof abnormalheator smoke.

•Donottouchliveterminals. Thismaycause electricshock.

•Connecttheelectric wiresecurely. Ifitis notsecurelywired,generation ofabnormalheator smokemaybecaused.

•Donotleaveforeignobjectssuch asliquid,flammablematerial ormetals in theinstrument, asthey couldcausean
abnormalheator smoke.

• Turn the power supply to the instrument OFF before wiring (connection and removal). Otherwise it may
result in electric shock.

•Before cleaning theinstrument,be sure tocheckthatthepowerisswitched OFF.

•Use a soft,dry cloth whencleaning the instrument. (Alcohol basedsubstances maytarnishor defacethe unit.)

•Asthedisplaysectionis vulnerable, do not strikeorscratchitwithahardobjectorputpressureonit.

Precautions

1. Installation Precautions

Caution

This instrument is intended to be used under the following environmental conditions
(IEC61010-1): Overvoltage category , Pollution degree 2
Ensure the mounting location corresponds to the following conditions:

• A minimum of dust, and an absence of corrosive gases

• No flammable, explosive gases

• No mechanical vibrations or shocks

• No exposure to direct sunlight, an ambient temperature of -10 to 55 (14 to 131 ) that does not
change rapidly, and no icing

• An ambient non-condensing humidity of 35 to 85%RH

• No large capacity electromagnetic switches or cables through which large current is flowing

• No water, oil or chemicals or where the vapors of these substances can come into direct contact with

the unit

• Takenote that the ambienttemperature of this unit – not the ambient temperature of the control panel –

must not exceed 55 (131 ) if mountedthrough the face of a control panel, otherwise the life of
electronic components (especially electrolytic capacitors) may be shortened.

※ Avoid setting this instrument directly on or near flammable material even though the case of this

instrument is made of flame-resistant resin.

Caution

Procedures which may lead to dangerous conditions and cause death or serious
injury, if not carried out properly.

Procedures which may lead to dangerous conditions and cause superficial
to medium injury or physical damage or may degrade or damage the product, if
not carried out properly.

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2. Wiring Precautions
Caution

• Do not leave wire remnants in the instrument, as they could cause a fire or malfunction.

• Use the solderless terminal with an insulation sleeve in which the M3 screw fits when wiring the
instrument.

• The terminal block of this instrument is designed to be wired from the left side. The lead wire must be
inserted from the left side of the terminal, and fastened with the terminal screw.

• Tighten the terminal screw using the specified torque. If excessive force is applied to the screw when
tightening, the terminal screw or case may be damaged.

• When using a terminalcoverfor the KT4R,passterminal wires numbered7 to 12 into the holes of the
terminal cover.

• This instrument does not have a built-in power switch, circuit breaker and fuse.
It is necessary to install a power switch, circuit breaker and fuse near the controller.
(Recommended fuse: Time-lag fuse, rated voltage 250 V AC, rated current 2 A)

• For the KT4R with a 24 V AC/DC power source, do not confuse polarity when using direct current (DC).

• Do not apply a commercial power source to the sensor which is connected to the input terminal nor

allow the power source to come into contact with the sensor.

• Use a thermocouple and compensating lead wire according to the sensor input specifications of this

controller.

• Use the 3-wire RTD according to the sensor input specifications of this controller.

• For DC voltage input, (+) side input terminal number of 0 to 5 V DC, 1 to 5 V DC, 0 to 10 V DC differs
from that of 0 to 1 V DC.

Model Terminal Number

KT4R

9

: (+)side of 0 to 5 V DC, 1 to 5 V DC, 0 to 10 V DC

10

: (+)side of 0 to 1 V DC

KT8R,KT9R

21

: (+)side of 0 to 5 V DC, 1 to 5 V DC, 0 to 10 V DC

22

: (+)side of 0 to 1 V DC

• When using a relay contact output type, externally use a relay according to the capacity of the load to
protect the built-in relay contact.

• When wiring, keep input wires (thermocouple, RTD, etc.) away from AC sources or load wires.

3. Operation and Maintenance Precautions
Caution

• It is recommended that AT be performed on the trial run.

• Do not touch live terminals.This may cause electricshockor problemsin operation.

• Turn the power supply to the instrument OFF when retightening the terminal or cleaning.
Working on or touching the terminal with the power switched ON may result in severe injury or death
due to electric shock.

• Use a soft, dry cloth when cleaning the instrument.

(Alcohol based substances may tarnish or deface the unit.)

• As the display section is vulnerable, do not strike or scratch it with a hard object or put pressure on it.

Copyright and Trademark

Panasonic Industrial Devices SUNX Co., Ltd. owns the copyright of this manual.
Reproduction of this manual without express permission from Panasonic Industrial Devices SUNX

Co., Ltd. is prohibited.

Modbus protocol is a communication protocol that Modicon Inc. developed for PLC and Modbus is

a registered trademark of Schneider Electric.

Other company names and the product names are the trademarks or registered trademarks of each
company.

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Contents

Page

1. Model Number

1.1 Model Number -------------------------------------------------------------------------- 7

1.2 How to Read the Rated Label ------------------------------------------------------ 7

2. Names and Functions of Sections ------------------------------------------------- 8

3. Mounting to the Control Panel

3.1 External Dimensions (Scale: mm) ----------------------------------------------- 10

3.2 Panel Cutout (Scale: mm) --------------------------------------------------------- 12

3.3 Mounting to, and Removal from, the Control Panel

3.3.1 How to Mountthe Unit---------------------------------------------------------- 13

3.3.2 How to Remove the Mounting Frame and Unit ------------------------- 15

4. Wiring

4.1 Terminal Arrangement --------------------------------------------------------------- 16

4.2 Lead Wire Solderless Terminal ---------------------------------------------------- 17

4.3 Terminal Cover ------------------------------------------------------------------------ 18

4.4 Wiring

4.4.1 Power Supply ------------------------------------------------------------------- 20

4.4.2 Control Output OUT1 --------------------------------------------------------- 20

4.4.3 Input ------------------------------------------------------------------------------- 21

4.4.4 Event Output 1, 2 -------------------------------------------------------------- 22

4.4.5 Serial Communication -------------------------------------------------------- 22

5. Outline of Key Operation and Each Mode

5.1 Key Operation ------------------------------------------------------------------------ 23

5.2 Modes ---------------------------------------------------------------------------------- 25

5.3 Basic Operation after Power-ON ------------------------------------------------ 26

6. Initial Settings --------------------------------------------------------------------------- 29

6.1 Example of Initial Settings --------------------------------------------------------- 30

6.2 Initial Setting Mode ------------------------------------------------------------------ 32

7. Settings

7.1 Main Setting Mode ------------------------------------------------------------------- 42

7.2 Sub Setting Mode -------------------------------------------------------------------- 47

7.3 Engineering Mode 1 ----------------------------------------------------------------- 53

7.4 Engineering Mode 2 ----------------------------------------------------------------- 65

8. Operation and Settings of Standard Functions

8.1 Selecting an input type -------------------------------------------------------------- 66

8.2 Selecting PID Control or ON/OFF Control ------------------------------------- 67

8.3 Selecting Direct/Reverse Action -------------------------------------------------- 68

8.4 Performing Fixed Value Control -------------------------------------------------- 69

8.5 Setting PID Constants (by Performing AT) ------------------------------------ 70

8.6 Performing Auto-reset --------------------------------------------------------------- 73

8.7 Performing Program Control ------------------------------------------------------ 74

8.8 Event Output EV1 Allocation ------------------------------------------------------ 81

8.9 Indicating MV, Remaining Time (Program Control) ------------------------- 83

8.10 Items to be Initialized by Changing Settings ------------------------------- 84

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9. Attached Function

9.1 Input Value Correction -------------------------------------------------------------- 85

9.2 Set Value Lock ------------------------------------------------------------------------ 87

9.3 Control Output OFF Function ------------------------------------------------------ 88

9.4 Switching Auto/Manual Control (Auto/Manual Control Function) --------- 89

9.5 Using as a Converter ---------------------------------------------------------------- 90

9.6 Clearing Data -------------------------------------------------------------------------- 92

9.7 2DOF PID control --------------------------------------------------------------------- 92

10. Action Explanation

10.1 OUT1 Action ------------------------------------------------------------------------- 93

10.2 OUT1 ON/OFF Control Action -------------------------------------------------- 93

10.3 Alarm Action ------------------------------------------------------------------------- 94

10.4 OUT2 (Heating/Cooling Control) Action -------------------------------------- 96

10.5 OUT2 (Heating/Cooling Control) Action (When Setting Dead Band) - 97

10.6 OUT2 (Heating/Cooling Control) Action (WhenSetting OverlapBand)- 98

11. Specifications

11.1 Standard Specifications ----------------------------------------------------------- 99

11.2 Specified Specifications ---------------------------------------------------------- 107

12. Troubleshooting

12.1 Indication ---------------------------------------------------------------------------- 109

12.2 Key Operation ---------------------------------------------------------------------- 112

12.3 Control -------------------------------------------------------------------------------- 112

13. Character Table

13.1 Error Code -------------------------------------------------------------------------- 113

13.2 Run Mode --------------------------------------------------------------------------- 114

13.3 Monitor Mode ----------------------------------------------------------------------- 114

13.4 Initial Setting Mode ---------------------------------------------------------------- 115

13.5 Main Setting Mode ---------------------------------------------------------------- 119

13.6 Sub Setting Mode ----------------------------------------------------------------- 121

13.7 Engineering Mode 1 -------------------------------------------------------------- 123

13.8 Engineering Mode 2 -------------------------------------------------------------- 130

14. Key Operation Flowchart ------------------------------------------------------------ 131

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1. Model Number

1.1 Model Number

AKT□R □ 1 □□ 00 □

(1) (2)(3)(4)(5) (6)

(1) External dimensions 4: 48×48×68 (Depth of control panel interior 60) mm (W×H×D)

8: 48×96×68 (Depth of control panel interior 60) mm (W×H×D)
9: 96×96×68 (Depth of control panel interior 60) mm (W×H×D)

(2) Supply voltage 1: 100 to 240VAC，2: 24V AC/DC (※)
(3) Input type 1: Multi-input (Thermocouple, RTD, Direct current and DC voltage

can be selected by key operation.)

(4) Control output (OUT1) 1: Relay contact 2:Non-contact voltage(for SSR drive)

3: Direct current
(5) Event output 1: 1 point (Relay contact 1a)，2: 2 points (Relay contact 1a)
(6) Serial communication (*) Blank: Not available 1: RS-485 Serial communication
(※) Only for the KT4R model

1.2 How to Read the Rated Label

The rated label is attached to the case.

KT4R KT8R, KT9R

(e.g.) AKT4R111200 (e.g.) AKT8R111200

(1) (1)

(2)

(3)
(4)
(5)
(6) (2)

(3)
(4)
(5)
(6)

(Fig. 1.2-1) (Fig. 1.2-2)

No. Explanation Indication Example

(1) Terminal arrangement Terminal arrangement for the AKT4R111200,

AKT8R111200
(2) Model number AKT4R111200, AKT8R111200
(3) Input MULTI-RANGE (Multi-range input)
(4) Control output,

Event output

O1: 3 A 250 V AC (Control output OUT1)

EV1: 3 A 250 V AC (Event output EV1)

EV2: 3 A 250 V AC (Event output EV2)
(5) Supply voltage,

Power consumption

100 to 240 V AC 50/60 Hz

11 VA
(6) Lot number 141130-K

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2. Names and Functions of Sections

KT4R

(Fig. 2-1)

KT8R KT9R

(Fig. 2-2) (Fig. 2-3)

Display

No. Name Description

(1) PV Display Indicates PV.

Indicates setting characters in each setting mode.

(2) SV Display Indicates SV.

Indicates set data in each setting mode.
In Monitor mode, indicated contents differ depending on the model number
as follows.

Model Number Indicated Contents

KT4R Indicates MV,Remaining time (Program control) or Step

number (Program control)

KT8R,KT9R Indicates MV or Remaining time (Program control).

(3) STEP Display Indicates Step number (Program control). (For KT8R, KT9R)

(1)

(2)

(4)

(5)

(6)

(7)

(8)

(1)

(2)

(4)

(3)

(5)

(8)

(6)

(7)

(1)

(2)

(4)

(3)

(5) (8)

(6)

(7)

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Action Indicators

No. Name Description

O1 (Green) Lit when control output OUT1 is ON.

For direct current output type, flashes corresponding to the MV in 125 ms
cycles.

O2 (Yellow) Lit when control output OUT2 is ON. When (Heating/Cooling

control relay contact output) is selected in [Event output EV2 allocation]
EV1 (Red) Lit when Event output 1 is ON.
EV2 (Red) Lit when Event output 2 is ON.

Unlit if (Heating/Cooling control relay contact output) is selected in

[Event output EV2 allocation].
AT (Yellow) Flashes while AT, ‘AT on startup’ or Auto-reset is performing.
T/R (Yellow) Lit during Serial communication TX (transmitting) output.

(4)

STEP (Green) Lit when a step number (Program control) is indicated. (For KT8R, KT9R)

Key

No. Name Description

(5) MODE key Switches a setting mode, and registers the set data.

By pressing this key for 3 seconds during RUN mode, the unit enters

Monitor mode.

(6) OUT/OFF key By pressing the key for approx. 1 second, one of the following items

selected in [OUT/OFF key function] is activated.

OUT/OFF Key Function Description

Control output OFF function Turns control output ON or OFF.

Auto/Manual control Switches the Auto/Manual control.

Program control Starts or Stops the Program control.

(7) DOWN key Decreases the numeric value.
(8) UP key Increases the numeric value.

By pressing this key for 1 second during Program control, the performing

step is interrupted, proceeding to the beginning of the next step. (Advance

function)

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3. Mounting to theControl Panel

3.1 External Dimensions (Scale: mm)

KT4R

(Fig. 3.1-1)

KT8R

(Fig. 3.1-2)

(*) When the terminal cover is used.

Rubber gasket

Mounting frame

Terminal cover (sold separately)

Rubber gasket

Terminal cover (sold separately)

(*) When the terminal cover is used.

Screw type mounting bracket

Terminal cover (sold separately)

Screw type mounting bracket

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KT9R

(Fig. 3.1-3)

Rubber gasket

Terminal cover (sold separately)

Screw type mounting bracket

(*) When terminal covers are used.

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3.2 Panel Cutout (Scale: mm)

Caution

If lateral close mounting is used for the unit, IP66 specification (Water-proof/Dust-proof)
may be compromised, and all warranties will be invalidated.

KT4R

Lateral close mounting
n: Number of units mounted

(Fig. 3.2-1)

KT8R

Lateral close mounting
n: Number of units mounted

(Fig. 3.2-2)

KT9R

Lateral close mounting
n: Number of units mounted

(Fig. 3.2-3)

130

92

＋0.8

0

45

＋0.5

0

n×48-3

＋0.5

0

92

＋0.8

0

□92

＋0.8

0

130

n×96-3

＋0.5

0

92

＋0.8

0

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3.3 Mounting to, and Removal from, the Control Panel

Caution

As the mounting frame of the KT4R is made of resin, do not use excessive force while
tightening screws, or the mounting frame could be damaged.
Tighten screws with one rotation upon the screw tips touching the panel.
The torque is 0.15 N•m.
For the KT8R, KT9R, the torque should be 0.1 N•m.

3.3.1 How to MounttheUnit
KT4R

Mount the controller vertically to the flat, rigid panel to ensure it adheres to the Water-proof/
Dust-proof specification (IP66).

If the lateral close mounting is used for the controller, IP66 specification (Water-proof/Dust-proof)
may be compromised, and all warranties will be invalidated.

Mountable panel thickness: 1 to 5 mm

(1) Insert the controller from the front side of the control panel. (Fig. 3.3.1-1)

If the Water-proof/Dust-proof specification (IP66) is not necessary, the rubber gasket may be
removed (please keep in mind the warranty is void if the rubber gasket is removed).

(2) Insert the mounting frame until it comes into contact with the panel, and fasten with screws.

Tighten screws with one rotation upon the screw tips touching the panel. (Fig. 3.3.1-2)
The torque is approximately 0.15 N•m.

(Fig. 3.3.1-1) (Fig. 3.3.1-2)

Mounting frame

Rubber gasket

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KT8R, KT9R

Mount the controller vertically to the flat, rigid panel to ensure it adheres to the Water-proof/
Dust-proof specification (IP66).
If the lateral close mounting is used for the controller, IP66 specification (Water-proof/Dust-proof)
may be compromised, and all warranties will be invalidated.
Mountable panel thickness: 1 to 7 mm

(1) Insert the controller from the front side of the control panel. (Fig. 3.3.1-3)

If the Water-proof/Dust-proof specification (IP66) is not necessary, the rubber gasket may be
removed (please keep in mind the warranty is void if the rubber gasket is removed).

(Fig. 3.3.1-3)

(2) Attach the mounting brackets by the holes at the top and bottom of the case, and secure the

controller in place with the screws.
The torque is approximately 0.1 N•m.

(Fig. 3.3.1-4)

Screw type

mounting bracket

Rubber gasket

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3.3.2 How to Remove the Mounting Frame and Unit

KT4R (Fig. 3.3.2-1)

(1)Turn thepower to the unit OFF, and disconnect all wires before removing the mounting frame.
(2) Insert a flat blade screwdriver between the mounting frame and unit (1).
(3) Slowly push the frame upward using the screwdriver (2), while pushing the unit toward the

panel (3).

(4) Repeat step (2) and slowly push the frame downward using the screwdriver for the other side.

The frame can be removed little by little by repeating these steps.

(Fig. 3.3.2-1)

KT8R, KT9R

(1)Turn thepower to the unit OFF, and disconnect all wires before removing the unit.
(2) Loosen the screws of the mounting brackets, and remove the mounting brackets.
(3) Pull the unit out from the front of the control panel.

①

②

③

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4. Wiring
Warning

Turn the power supply to the instrument off before wiring or checking.
Working on or touching the terminal with the power switched on may result in severe injury
or death due to electric shock.

4.1 TerminalArrangement
KT4R

(Fig. 4.1-1)

KT8R, KT9R

(Fig. 4.1-2)

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Terminal Description

PWR 100to 240 V AC or 24 V AC/DC

For a 24 V AC/DC power source, do not confuse polarity when using
direct current (DC).

24 V AC/DC: Only for the KT4R model
EV1 Event output EV1
EV2 Event output EV2
O1 Control output OUT1
RTD RTD input
TC Thermocouple input
DC Direct current, DC voltage inputs

For DC voltage input, (+) side input terminal number of 0 to 5 V DC, 1 to
5 V DC, 0 to 10 V DC differs from that of 0 to 1 V DC.

Model Number Terminal Number

KT4R

9

: + sideof 0 to 5 V DC, 1 to 5 V DC, 0 to 10 V DC

10

: + sideof 0 to 1 V DC

KT8R, KT9R

21

: + sideof 0 to 5 V DC, 1 to 5 V DC, 0 to 10 V DC

22

: + sideof 0 to 1 V DC

RS-485 Serial communication RS-485

Serial communication can be specified only for the KT4R model.

4.2 Lead Wire Solderless Terminal

Use a solderless terminal with an insulation sleeve in which an M3 screw fits as shown below.
The torque should be 0.63 N•m.

Solderless

Terminal

Manufacturer Model

Tightening

Torque

NichifuTerminal Industries Co.,Ltd. TMEV1.25Y-3

Y-type

JapanSolderlessTerminalMFGCo., Ltd. VD1.25-B3A
NichifuTerminal Industries Co.,Ltd. TMEV1.25-3

Ring-type

JapanSolderlessTerminalMFGCo., Ltd. V1.25-3

0.63 N•m

(Fig. 4.2-1)

5.8 mm max.

5.8 mm max.

3.2 mm

3.2 mm

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Terminal cover

4.3 Terminal Cover
KT4R

When using a terminal cover (sold separately), make sure the longer side is on the back right side
of the case.
Pass the wires from terminals 7 to 12 into the holes of the terminal cover.

(Fig. 4.3-1)

KT8R

When using a terminal cover (sold separately), make sure the longer side is on the back right side
of the case.
Pass the wires from terminals 13 to 24 through the left side of the terminal cover.

(Fig. 4.3-2) (Fig. 4.3-3)

Terminal cover

Top of KT8R

Mount the longer side of the
cover to the back right.

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KT9R

When using terminal covers (sold separately), make sure the longer side is on the back right and left
sides of the case.
Pass the wires from terminals 13 to 24 through between covers.

(Fig. 4.3-3)

(Fig. 4.3-4) (Fig. 4.3-5)

2 terminal covers

Mount the longer side of the
cover to the back right and
left.

Top of KT9R

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4.4 Wiring

For the terminal arrangement, refer to Section ‘4.1 Terminal Arrangement’(p.16)．

4.4.1 Power Supply

Power supply voltage is 100 to 240 V AC or 24 V AC/DC.
For a 24 V AC/DC power source, ensurepolarity is correctwhen using direct current (DC).
24 V AC/DC is available only for the KT4R model.

KT4R KT8R, KT9R

4.4.2 Control Output OUT1

Specifications of Control output OUT1 are shown below.

Relay contact 1a

Control capacity: 3 A 250 V AC (resistive load),

1 A 250 V AC (inductive load cos =0.4)
Electrical life: 100,000 cycles
Minimum applicable load: 10 mA 5 V DC

Non-contactvoltage
(for SSR drive)

12 V DC 15%
Max. 40 mA (short circuit protected)

Direct current 4 to 20 mA DC

Load resistance: Max. 550

KT4R KT8R, KT9R

Relay contact

Non-contact voltage,

Direct current

Relay contact

Non-contact voltage,

Direct current

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4.4.3 Input

Each input wiring is shown below.
For DC voltage input, (+) side input terminal number of 0 to 5 V DC, 1 to 5 V DC, 0 to 10 V DC
differs from that of 0 to 1 V DC.

KT4R

Thermocouple RTD

Direct current

(4 to 20 mA,

0 to 20mA),

DC voltage

(0 to 1 V)

DC voltage

(0 to 5 V,

1 to 5 V,

0 to 10 V)

KT8R, KT9R

Thermocouple RTD

Direct current

(4 to 20 mA,

0 to 20mA),

DC voltage

(0 to 1 V)

DC voltage

(0 to 5 V,

1 to 5 V,

0 to 10 V)

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4.4.4 Event Output 1, 2

Specifications of Event output 1, 2 are shown below.

Relay contact 1a

Control capacity: 3 A 250 V AC (resistive load)

1 A 250 V AC (inductive load cos =0.4)
Electrical life: 100,000 cycles
Minimum applicable load: 10 mA 5 V DC

KT4R KT8R, KT9R

4.4.5 Serial Communication

Serial communication can be specified only for the KT4R model.

KT4R

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5. Outline of Key Operation and Each Mode

5.1 Key Operation

Setting item numbers such as [1], [9] are the same as those on Section “14. Key Operation Flowchart”
(p.131).

Power ON

+ + + (3sec) Data clear

Yes/No

Startsfrom
previous
status (last

shutdown).

RUN mode By pressing for 1 sec, one item below selected in [OUT/OFF key function] is indicated.

Program Control Control output OFF Auto/Manual Control

PV/SV display (1sec) Program control Control output Manual control

(*1) RUN OFF

+ (3 sec) + + (3 sec)

Initial Setting Mode Main Setting Mode Sub Setting Mode Engineering Mode 1

Input type SV1 AT/Auto-reset Set value lock

Perform/Cancel

[1] [10] [37] [62]

SV4 Step 9 wait Loop break Controller/

value alarm span Converter

[9] [36] [61] [89]

(3 sec) (*2) + + (5 sec)

Monitor Mode Engineering Mode2

MV indication Control method

[90]

Remaining time

(*3)

Integral 2DOF
Current step coefficient (β)
number (KT4R) [92]

(*3)

(*1) If ‘Program control’ isselected in [OUT/OFF keyfunction], the unit enters Standby mode (program control waiting).
(*2) The unit cannot proceed to Monitor mode if it is in Standby of program control.
(*3)Availableonly when ‘Programcontrol’ is selected in[OUT/OFFkey function].

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• + + + (3 sec):Press andhold the , , , keys (allkeys)(in that order) together for approx. 3 sec.

• + (3 sec): Press and hold the , keys (in thatorder)togetherfor approx.3 sec.

• + :Press andhold the , keys (in thatorder)together.

• + (3sec):Press andhold the , keys(in thatorder) together forapprox.3 sec.

• + + (5 sec): Press andhold the , , keys (in thatorder)togetherforapprox.5sec.

• Set (or select) each item with the or key, and register the value with the key.

• : If the key is pressed, the unit will proceed to the next setting item, illustrated by an arrow.

Pressing the keymoves backtothe previous item.

• To revert to RUN mode, press andhold the key for approx. 3 sec while in any mode.

• To revert to RUN mode, press andhold the key forapprox. 3sec while in any mode.

If ‘Control output OFF function’ is selected in [OUT/OFF key function], the unit will enter Control output OFF status.
If ‘Auto/Manual control’ is selected in [OUT/OFF key function], the unit will enter Manual control status.
If ‘Program control’ is selected in [OUT/OFF key function], the unit will enter ‘Program control RUN’ or Standby mode.

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5.2 Modes

Mode Description

When power is turned ON, the unit enters RUN mode.
The PV Display indicates PV, and the SV Display indicates SV.
Control starts from previous status (last shutdown).
By pressing the key for approx. 1 sec, one of the following functions
selected in [OUT/OFF key function] is activated.

OUT/OFF Key Function Description

Control output OFF function Turns the control output ON or OFF.
Auto/Manual control Switches the Auto/Manual control.

RUN mode

Program control Starts/Stops the Program control.
By pressing the key for approx. 3 sec in RUN mode, the unit enters
Monitormode. The PV Display indicates PV,and the SV Display indicates MV.
Every time the keyis pressed, the following is indicated.
Indicated contents differ depending on the model number.

Model number Indicated Contents

KT4R Indicates MV,Remaining time (Program control) or

Step number (Program control).

Monitor mode

KT8R, KT9R Indicates MV or Remaining time (Program control).

Initial setting mode By pressing the and keys (in thatorder) together for approx. 3 sec in

RUNmode, the unit enters Initial settingmode.
Thefollowingitems canbeset:

Input type, Scaling high limit/low limit,Event output EV1/EV2 allocation,
SV1, etc.

Main setting mode By pressing the keyin RUN mode,theunitenters Mainsetting mode.

SVcanbeset.
If ‘Program control’ is selected in [OUT/OFF key function], SV, Time and Wait
value for Steps 1 to 9 can be set.

Sub setting mode By pressing the and keys (in that order) together in RUN mode, the

unit enters Subsetting mode.
Thefollowingitems canbeset:

AT Perform, P, I, D, Direct/Reverse action, Event outputEV1/EV2, etc.

Engineering mode 1 By pressing the and keys (in that order) together for approx. 3 sec in

RUNmode, the unit enters Engineering mode1.
Thefollowingitems canbeset:

Set value lock, Eventoutput EV1/EV2 allocation, Sensor correction,
PV filter time constant, Program control, OUT/OFF key function,
Controller/Converter, etc.

Engineering mode 2 By pressing the , , keys(inthat order)together for approx.5sec in

RUNmode, the unit enters Engineering mode2.
Thefollowingitems canbeset:

Control method, Proportional gain2DOF coefficient(α), Integral 2DOF
coefficient (β)

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5.3 Basic Operation after Power-ON

After the unit is mounted to the control panel and wiring is completed, operate the unit following the
procedures below.

(1) Turn the unit power supply ON
※After confirming the rated voltage, polarity and wiring, turn the power ON via contacts

such as switch or relay. If any mistakes are made, an electric shock, malfunction or errors

may be caused.

After the power is turned ON, the PV Display indicates the input type, and the SV Display indicates
the Input range high limit value (for thermocouple, RTD inputs) or Scaling high limit value (for DC
voltage, current inputs) for approximately 3 seconds. (Table 5.3-1)
During this time, all outputs and the indicators are in OFF status.

Control will then start, indicating the PV in the PV Display and SV in the SV Display.
While the control output OFF function is working, the PV Display indicates [ .].
Indication differs depending on the selection in [Indication when control output OFF].

(Table 5.3-1)

Sensor Input

PV Display SV Display PV Display SV Display

K

J
R
S
B
E
T
N
PL­C(W/Re5-26)
Pt100
JPt100
Pt100
JPt100
4 to 20 mA DC
0 to 20 mA DC
0 to 1 V DC
0 to 5 V DC
1 to 5 V DC
0 to 10 V DC

Scaling high limit value

When power is turned ON, and any errors are found, the following error codes are indicated in the
PV Display.
To cancel the error code, press the key.

Error Code Error Contents

Non-volatile IC memory is defective.
Data writing (in non-volatile IC memory) error when power failure occurs.

(2) Enter each value.

Refer to Sections ‘6. Initial Settings’ (p.29), ‘7. Settings (p.42)’ and ‘8. Operation and Settings of
Standard Functions’ (p.66).
Enter each value: Input type, Control method, Direct/Reverse action, SV, PID constants,

Event output EV1 allocation, etc.

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(3) Turn the load circuit power ON

Control starts, so as to reach, and then maintain the control target at the SV.

Error codes during operation

If errors occur during operation, error codes below are indicated in the PV Display.

Error Code Error Contents

PV has exceeded Input range high limit value (scaling high limit value for DC
voltage, current inputs).
PV has dropped below Input range low limit value (scaling low limit value for DC
voltage, current inputs).
Input burnout, or PV has exceeded the Indication range and Control range.
Hardwaremalfunction

Indication Range and Control Range

Input Type Indication Range and Control Range

Thermocouple [Input range low limit – 50 (100 )] to [Input range high limit + 50 (100 )]
RTD [Input range low limit – Input span x 1%] to [Input range high limit + 50 (100 )]
DC voltage,
Direct current

[Scaling low limit value – Scaling span x 1%] to
[Scaling high limit value + Scaling span x 10%]

Input error (Overscale, Underscale)

Overscale occurs if PV has exceeded Input range high limit value (Scaling high limit value for DC
voltage, current inputs). PV and error code [ ] are indicated in the PV Display alternately.

Underscale occurs if PV has dropped below Input range low limit value (Scaling low limit value for
DC voltage, current inputs). PV and error code [ ] are indicated in the PV Display alternately.

For manual control, the preset MV is output.

Burnout

If PV has exceeded Indication range and Control range, [ ] and [ ] are alternately
indicated in the PV Display.
If PV has dropped below Indication range and Control range, [ ] and [ ] are alternately
indicated in the PV Display.

If thermocouple or RTD input is burnt out, or if DC voltage (0 to 1 V DC) input is disconnected,
[ ] and [ ] are alternately indicated in the PV Display.

If DC voltage or current input is disconnected:

For4 to 20 mA DC, 1 to 5 V DC inputs, the PVDisplay indicates [ ] and [ ] alternately.
For0 to 20 mA DC,0 to 5 V DC and 0 to 10 V DC inputs, the PV Display indicates the value
corresponding with 0 mA DC or 0 V DC input.

OUT1 and OUT2 are turned OFF (OUT1 low limit value for Direct current output).
For manual control, the preset MV is output.
If Alarm or Loop break alarm is selected in [Event output EV1/EV2 allocation], Event output will be
turned ON under the alarm active conditions.

Burnout is enabled even in standby (program control waiting) mode in Program control

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[Outputstatus when input errors occur] can be used only for controllers using Direct current input
and voltage input, and Direct current output.
Output status differs depending on selection in [Output status when input errors occur].

Output Status

OUT1 OUT2

Output status
when input
errors occur

Contents,
Indication

Direct (Cooling)

action

Reverse(Heating)

action

Direct (Cooling)

action

Reverse(Heating)

action

ON (20mA) or
OUT1 high
limit value (*)

ON (*)

Indicates
[ ]
and
[ ]
alternately.

OFF (4mA) or
OUT1 low
limit value

OFF (4mA) or
OUT1 low limit
value

OFF

OFF

ON (20mA) or
OUT1 high limit
value (*)

ON (*)

Indicates
[ ]
and
[ ]
alternately.

OFF (4mA) or
OUT1 low
limit value

OFF (4mA) or
OUT1 low limit
value

OFF

OFF

(*) Outputs a value between OFF (4mA) and ON (20mA) or between OUT1 low limit value and OUT1 high limit value,

depending on deviation.

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6. Initial Settings

Setup (setting the Input type, Event output allocation, SV, etc.) should be done before using this
controller,according to the user’s conditions.
Perform setup in Initial setting mode.

Setting items in Initial setting mode are shown in (Table 6.1).
If the user’s specification is the same as the factory default value of this instrument, or if user’s

instrument has already been installed in a system, initial settings are not necessary.
Proceed to Section ‘7. Settings’ (p.42).

(Table 6.1)

Setting Items in Initial Setting Mode Factory Default

Input type K -200 to 1370
Scaling high limit 1370
Scaling low limit -200
Decimal point place No decimal point
Event output EV1 allocation No event
EV1 alarm value 0 Enabled/Disabled Disabled
EV1 alarm value 0
EV1 high limit alarm value 0
EV1 alarm hysteresis 1.0
EV1 alarm delay time 0 sec
EV1 alarm Energized/De-energized Energized
Event output EV2 allocation No event
EV2 alarm value 0 Enabled/Disabled Disabled
EV2 alarm value 0
EV2 high limit alarm value 0
EV2 alarm hysteresis 1.0
EV2 alarm delay time 0 sec
EV2 alarm Energized/De-energized Energized
Loop break alarm time 0 minutes
Loop break alarm span 0
SV1 0

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6.1 Example of Initial Settings

(e.g.) AKT4R111100

Initial Setting Items Example

Input type K -200.0 to 400.0
Event output EV1 allocation High limit alarm
EV1 alarm value 20.0 (Deviation setting from SV)
SV 200.0 (Fixed value control)

PID control is performed. PID constants are calculated by performingAT.

Alarm action

(Fig. 6.1-1)

OFF

ON

200.0 220.0219.0

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