Panasonic KT2 User guide

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TEMPERATURE CONTROLLER

KT2

INSTRUCTION MANUAL

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Caution

Thank you for purchasing Temperature Controller KT2. This manual contains instructions for the mounting, functions, operations and notes for operating the KT2. For model confirmation and unit specifications, please read this manual carefully before starting operation.

To prevent accidents arising from the misuse of this controller, please ensure the operator receives this manual.

Characters used in this manual

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 in accordance with the specifications, it may malfunction or cause fire.

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

or accidents may occur.

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

• Care has been taken to assure that the contents of this instruction manual are correct, but if there are any doubts, mistakes or questions, please inform our sales department.

• This instrument is designed to be installed in a control panel. If it is not, measures must be taken to ensure that power terminals or other high voltage sections cannot be touched.

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

•

Panasonic Electric Works Co., Ltd.

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

is not liable for any damage or secondary damage(s) incurred

Safety precautions

(Be sure to read these precautions before using our products.)

The safety precautions are classified into two categories: “Warning” and “Caution”. Depending on circumstances, procedures indicated by Caution may have serious consequences, so be sure to follow the directions for correct usage.

Warning

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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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 or explosive gases

• No mechanical vibrations or shocks

• No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 )

that does not change rapidly

• 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

contact with the unit

Note: Do not install this instrument near flammable material even though the case of this instrument

is made of flame-resistant resin. Avoid setting this instrument directly on flammable material.

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Caution

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

KT2.

• Tighten the terminal screw with the specified torque. If excessive force is applied to the screw

when tightening, the terminal screw or case may be damaged.

• 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.

• This controller does not have built-in power switch, circuit breaker or fuse.

It is necessary to install them near the controller. (Recommended fuse: Time-lag fuse, rated voltage 250V AC, rated current 2A)

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Warning

• It is recommended that the PID auto-tuning be performed on the trial run.

• Do not touch live terminals. This may cause electric shock or problems in operation.

• Turn the power supply to the instrument OFF before retightening the terminal and cleaning.

Working 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.

--- CONTENTS---

1. Model number

1.1 Model number ----------------------------------------------------------------------- 5

1.2 How to read the rated label ------------------------------------------------------ 5

2. Name and functions of the sections ------------------------------------- 5

3. Mounting to the control panel

3.1 Site selection ------------------------------------------------------------------------- 6

3.2 External dimensions ---------------------------------------------------------------- 6

3.3 Panel cutout -------------------------------------------------------------------------- 6

3.4 Mounting ------------------------------------------------------------------------------ 6

4. Wiring ------------------------------------------------------------------------------------- 7

5. Setup procedures

5.1 Setup procedures ------------------------------------------------------------------ 8

5.2 Initial setting ------------------------------------------------------------------------- 8

6. Setup

6.1 Main setting mode -----------------------------------------------------------------14

6.2 Sub setting mode ------------------------------------------------------------------16

6.3 Auxiliary function setting mode 1 ---------------------------------------------- 17

7. Running

7.1 Startrunning ------------------------------------------------------------------------ 18

7.2 MV (Control output manipulated variable) indication --------------------- 19

7.3 Control output OFF function ---------------------------------------------------- 19

7.4 Auto-tuning (AT) Perform/Cancel ---------------------------------------------- 19

8. Operation flowchart -------------------------------------------------------------- 20

9. PID auto-tuning -------------------------------------------------------------------- 22

10. Action explanation

10.1 OUT1 (Heating) action --------------------------------------------------------- 23

10.2 OUT1 (Heating) ON/OFF action --------------------------------------------- 23

10.3 A1, A2 action --------------------------------------------------------------------- 24

10.4 Heating/Cooling control action (Heating/Cooling control option) --- 24

10.5 Heating/Cooling control action (When setting dead band) (Heating/Cooling control option) --------------------------------------------- 25

10.6 Heating/Cooling control action (When setting overlap band) (Heating/Cooling control option) --------------------------------------------- 25

10.7 Timer action ----------------------------------------------------------------------- 25

11. Specifications

11.1 Standard specifications --------------------------------------------------------- 26

11.2 Optional specifications ---------------------------------------------------------- 28

12.Troubleshooting

12.1 Indication ---------------------------------------------------------------------------29

12.2 Key operation --------------------------------------------------------------------- 30

12.3 Control ------------------------------------------------------------------------------ 30

13. Character table ------------------------------------------------------------------- 31

1. Model number

1.1 Model number A K T 2 1 0

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

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

can be selected by keypad) (3) Control output (OUT1) ----------- 1: Relay contact 2: Non-contact voltage 3: DC current (4)Alarm output ------------------------- 0: Not available (When both Healing/Cooling control and Serial

communication are selected)

1:A1 output or A2 output (However, if Healing/Cooling control

is selected, only A2 output is available. If Serial communication is selected, only A1 output is available)

2:A1 output + A2 output (When neither Healing/Cooling control

nor Serial communication is selected) (5) Heating/Cooling control (OUT2) output: 0: Not available 1: Relay contact (6) Serial communication ------------- Blank: Not available 1: Applied

1.2 How to read the rated label

The rated label is attached to the case and the inner assembly.

(For case) (For inner assembly)

(Example)

Supply voltage: 100 to 240V AC Multi-input Relay contact output A1 output + A2 output Heating/Cooling control is not added Serial communication is not added

(Fig. 1.2-1)

(Fig. 1.2-2)

: Model number,supply

voltage, input type, output type, etc. are entered

: Lot number is entered.

2. Name and functions of the sections

3 4 5 6

10 11

(Fig. 2-1)

SV indicator (green) : Lights when SV (main set value) is indicated.

AT indicator (yellow) : Flashes during AT (auto-tuning).

T/R indicator (yellow): Flashes during Serial communication.

(Lit while sending data, Unlit while receiving data)

OUT indicator (green): Lights when control output or OUT1 (Heating side, Heating/Cooling control

option) is ON. (For DC current output type, it flashes corresponding to the manipulated variable in 0.25 second cycles)

EV1 indicator (red) : Lights when Event output 1 or OUT2 (Cooling side, Heating/Cooling control

option) is ON.

EV2 indicator (red) : Lights when Event output 2 is ON.

Increase key ( ) : Increases the numeric value.

Decrease key ( ) : Decreases the numeric value.

Mode key ( ) : Selects the setting mode or registers the set value.

(BypressingtheModekey, the set value or selectedvaluecanberegistered)

OUT/OFF key ( ) : The control output OUT/OFF or program control RUN/STOP can be switched.

PV/SV display (red): Indicates the PV (Process variable)

and SV (Main set value). During setting mode, characters and set value of each setting item are indicated alternately.

MEMO/STEP display (green): Indicates memory number

during fixed value control. Indicates step number during program control.

PV indicator (red): Lightswhen thePV(Process variable)

is indicated.

3. Mounting to the control panel

47.6

36.5

44.8

21.6

23.8 (*)

10.6

98.5

101 (*)

3.1 Site selection 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 or explosive gases

• No mechanical vibrations or shocks

• No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 )

that does not change rapidly

• 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 contact

with the controller

3.2 External dimensions (Unit: mm)

47.5 (*)

(*): When terminal cover is added

(Fig. 3.2-1)

3.3 Panel cutout (Unit: mm)

(Fig. 3.3-1)

3.4 Mounting

Mount the controller vertically so that dust and water do not enter, fulfilling the Dust-proof/Drip-proof specification (IP66). Mountable panel thickness: 1 to 10mm

(1) Insert the controller from the front side of the panel. (Fig. 3.4-1) (2) Insert the mounting frame until 2 tips of the frame touch the panel. (Fig. 3.4-2) (3) Tighten screws with 3/4 rotations upon the screw tips touching the panel.

(Fig.3.4-1) (Fig.3.4-2)

4. Wiring

5.8mm or less

Warning

Turn the power supply to the instrument off before wiring.

Working or touching the terminal with the power switched on may result in severe injury

or death due to Electric Shock.

• TC : Thermocouple input terminals

• RTD : RTD input terminals

• DC : DC current, DC voltage input terminals

For DC current input type, connect 50 shunt resistor (sold separately) between input terminals.

• OUT1 : Control output or Heating output (Heating/ Cooling control option) terminals

• POWER SUPPLY: Power terminals

• EV1/OUT2: Event output 1 or Cooling output

(Heating/Coolingcontroloption) terminals

• EV2 : Event output 2 terminals

• DI : DI (Digital input) terminals

Three DI functions: SV1/SV2 external

(Fig. 4-1) selectionfunction,OUT/OFF(RUN/STOP)

external selection and Timer function

• RS-485: Serial communication terminals

Notice

• To extend a thermocouple’s lead wire,be sure to use a compensating lead wire in accordancewith

the sensor input specification.(Ifany other compensating lead wire is used, a temperature indication error may be caused.)

• Use the 3-wire RTD which corresponds to the input specification of this controller.

• This controller does not have a built-in power switch, circuit breaker or fuse. Therefore, it is

necessary to install them in the circuit near the external controller. (Recommended fuse: Time-lag fuse, rated voltage 250V AC, rated current 2A)

• When using a 24V DC for the power source, do not confuse polarity.

• 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 to avoid external interference.

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

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

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 0.63N•m.

Solderless

terminal

Y type

Round type

Manufacturer Model

Nichifu Terminal Industries CO., LTD. TMEV1.25Y-3 Japan Solderless Terminal MFG CO., LTD. VD1.25-B3A Nichifu Terminal Industries CO., LTD. TMEV1.25-3 Japan Solderless Terminal MFG CO., LTD. V1.25-3

3.2mm

Tightening

torque

0.63N•m

5.8mm or less

(Fig. 4-2)

5. Setup procedures

PV/SV display

5.1 Setup procedures

The setup procedures of this controller is shown below. Refer to each item for details.

(1) Initial setting : Set the Input type, Alarm type, etc. during Auxiliary function setting mode 2.

(If the users’ specification is the same as the default value of the KT2, initial setting is not necessary for the controller.)

(2) Main setting mode: Set Step SV and Step time for Program control during Main setting mode.

Referto Chapter“6.Setup”.

(3) Sub setting mode : Set PID values, A1 setting, etc during Subsetting mode.

(If the users’ PID values are the same as the default value of the KT2, it is not necessary to set them.) Refer to Chapter “6. Setup”.

(4) Auxiliary function setting mode 1: Set the Lock function, Communication conditions, etc. during

Auxiliary function setting mode 1. (If the users’ specification is the same as the default value of the KT2, it is not necessary to set them.)

Run Refer to Chapter “6. Setup”.

5.2 Initial setting

Before using this controller, it is necessary to set up the Input type, Alarm type, Control action, etc. according to the users’ conditions. This is an initial setting. Default values are set as follows. Input: K –200to1370 ,Alarm1(A1):Noalarmaction,Alarm2(A2):Noalarmaction,Reverse(Heating)action

If the users’ specification is the same as the default value of the KT2, initial setting is not necessary. Proceed to Section “6.1 Main setting mode”.

Turn the power supply to the instrument on. For approx. 3 seconds after the power is turned on, the MEMO/STEP display is turned off and the PV/SV display indicates sensor input characters and temperature unit. (Table 5.2-1) During this time, all outputs and LED indicators are in an OFF status.

(Table 5.2-1)

Sensor input

K J

R S B E T N PLC (W/Re5-26) Pt100

JPt100 4 to 20mA DC

0 to 20mA DC 0 to 1V DC 0 to 5V DC 1 to 5V DC 0 to 10V DC

After that, the following is indicated.

The MEMO/STEP display indicates a memory number. The PV/SV display indicates an input value (e.g. room temperature). This is the PV/SV display mode.

Basic operation for initial setting

Initial setting is conducted in Auxiliary function setup mode 2. To go to Auxiliary function setup mode 2, press the key for approx. 3 seconds while holding down the key in the PV/SV display mode. Setorselectthevalueswiththe or key. Pressingthe keyregisters thevalues andgoes tothe nextitem.

Display used for explaining setting items

Setting items (Section “5.2 Initial setting” and setting modes from Section 6.1 to 6.3) are explained as follows. (e.g.) Input type selection

means that input type characters and selected

value (K –200 to 1370 ) are indicated in turn.

Auxiliary function setting mode 2

Display Item, Function, Setting range Default value

Input type selection K (-200 to 1370 )

• The input type can be selected from thermocouple (10 types), RTD (2 types), DC current (2 types) and DC voltage (4 types). The unit / can be selected as well.

• When changing the input from DC voltage to other inputs,

remove the sensor connected to this controller first, then change for the input. If the input is changed with the sensor connected, the input circuit may break.

K : :

J :

R :

S :

B :

E :

T :

N :

PL:

C (W/Re5-26)

Pt100

JPt100 :

Pt100

JPt100

: :

PL-

C (W/Re5-26)

Pt100

JPt100

Pt100

JPt100 :

4 to 20mA DC :

0 to 20mA DC :

0 to 1V DC :

0 to 5V DC :

1 to 5V DC :

0 to 10V DC

Scaling high limit setting 1370

• Sets scaling high limit value.

• Setting range: Scaling low limit value to input range high limit value

Scaling low limit setting -200

• Sets scaling low limit value.

• Setting range: Input range low limit value to scaling high limit value

-200 to 1370

-199.9 to 400.0

-200 to 1000 0 to 1760 0 to 1760 0 to 1820

-200 to 800

-199.9 to 400.0

-200 to 1300 0 to 1390 0 to 2315

-199.9 to 850.0

-199.9 to 500.0

-200 to 850

-200 to 500

-320 to 2500

-199.9 to 750.0

-320 to 1800 0 to 3200 0 to 3200 0 to 3300

-320 to 1500

-199.9 to 750.0

-320 to 2300 0 to 2500 0 to 4200

-199.9 to 999.9

-199.9 to 900.0

-300 to 1500

-300 to 900

-1999 to 9999

Decimal point place selection No decimal point

• Selects decimal point place.

• Available only for DC input

• : No decimal point : 1 digit after decimal point

: 2 digits after decimal point : 3 digits after decimal point

PV filter time constant setting 0.0 seconds

• Sets PV filter time constant.

Input fluctuation due to the noise can be reduced.

If the value is set too large, it affects control result due to the delay of response.

• Setting range: 0.0 to 10.0 seconds

OUT1 (Heating) high limit setting 100%

• Sets OUT1 (Heating) high limit value.

Not available if OUT1 (Heating) is ON/OFF action

• If Heating/Cooling control option is added, OUT1 terminals are

used for Heating output terminals.

• Setting range: OUT1 (Heating) low limit value to 105%

(Setting higher than 100% is effective to DC current output type)

OUT1 (Heating) low limit setting 0%

• Sets OUT1 (Heating) low limit value.

Not available if OUT1 (Heating) is ON/OFF action

• If Heating/Cooling control option is added, OUT1 terminals are

used for Heating output terminals.

• Setting range: –5% to OUT1 (Heating) high limit value

(Setting less than 0% is effective to DC current output type)

OUT1(Heating)ON/OFF action hysteresis setting 1.0

• Sets ON/OFF action hysteresis for OUT1 (Heating).

• Available only when OUT1 (Heating) is ON/OFF action

• Setting range: 0.1 to 100.0 ( ), or 1 to 1000

EV1 output selection A1 output

• Selects a function for EV1 output terminals.

• Not available if Heating/Cooling control option is added, since

EV1 terminals are used for Cooling output terminals.

• :A1 output :A2 output : Common to A1 and A2 output

EV2 output selection A2 output

• Selects a function for EV2 output terminals.

• Not available if Serial communication option is added

• :A1 output :A2 output : Common to A1 and A2 output

Overlap band/Dead band setting 0.0

• Sets the overlap band or dead band for OUT1 (Heating side) and

OUT2 (Cooling side).

+ set value: Dead band – set value: Overlap band

• Available only when the Heating/Cooling controloptionis added

• Setting range: –100.0 to 100.0 ( ), or 1 to 1000

OUT2 (Cooling) ON/OFF actionhysteresissetting 1.0

• Sets ON/OFF action hysteresis for OUT2 (Cooling side).

• Available only when the Heating/Cooling controloptionis added

• Setting range: 0.1 to 100.0 ( ), or 1 to 1000

A1 type selection No alarm action

• Selects an A1 (Alarm 1) type.

• : No alarm action : High limit alarm : Low limit alarm : High/Low limits alarm : High/Low limit range alarm : Process high alarm : Process low alarm : High limit alarm with standby : Low limit alarm with standby : High/Low limits alarm with standby : Timer function : Pattern end output

If Timer function is selected, Timer function works only when Delay action type, Delay time and DI (digital input) function are set or selected.

A2 type selection

No alarm action

• Selects an A2 (Alarm 2) type.

• Alarm type selection and default value are the same as those of

A1 type selection.

A1 hysteresis setting

1.0

• Sets hysteresis for A1.

• Not available if No alarm action, Timer function or Pattern end

output is selected during A1 type selection

• Setting range: 0.1 to 100.0 ( ), or 1 to 1000

A2 hysteresis setting

1.0

• Sets hysteresis for A2.

• Not available if No alarm action, Timer function or Pattern end

output is selected during A2 type selection

• Setting range: 0.1 to 100.0 ( ), or 1 to 1000

A1 action delayed timer setting

0 seconds

• Sets action delayed timer for A1.

When setting time has elapsed after the input enters the alarm output range, the alarm is activated.

• Not available if No alarm action, Timer function or Pattern end

output is selected during A1 type selection

• Setting range: 0 to 9999 seconds

A2 action delayed timer setting

0 seconds

• Sets action delayed timer for A2.

When setting time has elapsed after the input enters the alarm output range, the alarm is activated.

• Not available if No alarm action, Timer function or Pattern end

output is selected during A2 type selection

• Setting range: 0 to 9999 seconds

Alarm HOLD function selection

Alarm Not Holding

• Selects whether alarm HOLD function for A1 or A2 is used or

not used.

• This setting item is common to A1 and A2.

Not available if No alarm action, Timer function or Pattern end output is selected during A1 or A2 type selection.

• :Alarm Not Holding :Alarm Holding

Delay action type selection

OFF delay

ON delay

• Selects a delay action type for Timer function.

• Available only when Timer function is selected during A1 or A2 type selection.

• : ON delay

: OFF delay : ON/OFF delay

(Contact Closed)

(Digital input)

OFF

(Contact Open)

DLY

ON delay

ON/OFF

OFF ON

OFF

DLY

delay

OFF

DLY: Delay time setting

(Fig. 5.6-1)

Delay time setting

0 seconds

• Sets delay time for the Timer function.

• Available only when Timer function is selected during A1 or A2 type selection.

• Setting range: 0 to 9999 seconds

Direct/Reverse control action selection

Reverse (Heating)

• Selects Reverse (Heating) or Direct (Cooling) control action.

・ : Reverse (Heating) action

: Direct (Cooling) action

AT bias setting

• Sets bias value when performing auto-tuning. See page 22 for PID auto-tuning.

• Not available for DC input

• Setting range: 0 to 50 (0 to 100 ) or 0.0 to 50.0 (0.0 to100.0 )

Setting item not used

This item is indicated when Serial communication option is added. However, this cannot be used.

OUT/OFF key function selection

Control output OUT/OFF function

• Selects whether OUT/OFF key is used for control output OUT/OFF function (Fixed value control) or for program control RUN/STOP function.

• : Control output OUT/OFF function (Fixed value control)

: Program control RUN/STOP function

Step time unit selection Hour:Minute

• Selects Step time unit for the program control function.

• Not available if control output OUT/OFF function (Fixed value control) is selected during [OUT/OFF key function selection].

• : Hour:Minute

: Minute:Second

DI (Digital input) function

Between DI terminals from Open to Closed: RUN (program

Between DI terminals from Closed to Open: STOP (program

selection

SV1/SV2 external selection function

• Selects DI function whether it is used as SV1/SV2 external selection function, OUT/OFF (RUN/STOP) external selection function or Timer function.

If SV1/SV2 external selection function is selected;

SV1 or SV2 can be switched by external contact. However, this function is not available if Program control function is selected during OUT/OFF key function selection.

Between DI terminals Open: SV1 Between DI terminals Closed: SV2

If OUT/OFF(RUN/STOP)externalselection function is selected;

Control output OUT/OFF (Fixed value control) or Program control RUN/STOP can be switched by external contact.

Fixed value control

Between DI terminals Open: OUT (Control allowed) Between DI terminals Closed: OFF (Control prohibited,

control output OFF)

Program control

Program control RUN/STOP can be switched if the following operation is conducted during program control standby.

control run)

control stop) If DI terminal contact is changed from Closed to Open while pattern end output is turned on after program controlended,

pattern end output is turned off.

Controller

status DION

ContactClosed

DIOFF

ContactOpen

If Timer function is selected;

Timer counting starts by the external contact, and after the set delay time has passed, the selected event output is turned on.

• Not available if Serial communication option is applied.

• : SV1/SV2 external selection function

Output status selection when input abnormal Output OFF

• Selects the output status of OUT1 and EV1/OUT2 when DC input isoverscale orunderscale.See“Inputabnormalityindication” (p.28).

• Available only for DC current output type with DC input

• : OUT1outputs OFF(4mA) or OUT1(Heating)lowlimitvalue.

: OUT1 outputs a value between OFF(4mA) and ON(20mA),

Controller/Converter function selection Controller

• Selects whether to use the KT2 as a controller or a converter.

If theKT2isswitched from a convertertoa controller, control parameters which were automatically set when converter function was selected are maintained as they were. Therefore correct the values whenusingthe KT2 as a controller.

• Available only for DC current output type

• : Controller

Standby mode

Contact Open

Standby mode

Programcontrolisperformed whenthecontactischanged

fromOpentoClosed.

ProgramcontrolRUN

Contact Closed

Performsprogramcontrol.

Programcontrolstopswhen thecontactis changedfrom ClosedtoOpen.

ProgramcontrolSTOP

Contact Open

Stopsprogramcontrol.

: OUT/OFF(RUN/STOP) external selection function : Timer function

EV1/OUT2: OFF

or outputs a value between OUT1(Heating) low limit value and OUT1 (Heating) high limit value.

EV1/OUT2: ON

: Converter

6. Setup

6.1 Main setting mode

To go to the main setting mode, press the key in the PV/SV display mode. Set each setting item with the or key, and register the value with the key. In the main setting mode, indicated setting items are different depending on the instrument status.

• Fixed value control Setting items SV1 and SV2 will be indicated.

• Program control Step SV and step time from Step 1 to Step 9 will be indicated.

Step number

200

(Fig.6.1-1)

1 2

1:00 2:00

Program control run

This program pattern shows that the temperature rises to 200 for 1 hour and stays at 200 for 2 hours.

In this case, Step 1 SV: 200 Step 1 time (1 hour): 01:00

Step 2 SV: 200 Step 2 time (2 hours): 02:00

Display

Item, Function, Setting range Default value

SV1 (step 1 SV) setting 0

• Sets SV1 or step 1 SV.

• Scaling low limit value to Scaling high limit value Step 1 time setting 00:00

• Sets step 1 time.

• Available only when program control function is selected during OUT/OFF key function selection

• Setting range: 00:00 to 99:59

SV2 (step 2 SV) setting 0

• Sets SV2 or step 2 SV.

• Available when SV1/SV2 external selection function is selected during DI (digital input) function selection or when program control function is selected during OUT/OFF key function selection.

• Scaling low limit value to Scaling high limit value

Step 2 time setting 00:00

• Sets step 2 time.

• Available only when program control function is selected during OUT/OFF key function selection

• Setting range: 00:00 to 99:59

Step 3 SV setting 0

• Sets step 3 SV.

• Available only when program control function is selected during OUT/OFF key function selection

• Scaling low limit value to Scaling high limit value

Step 3 time setting 00:00

• Sets step 3 time.

• Available only when program control function is selected during OUT/OFF key function selection

• Setting range: 00:00 to 99:59

Step 4 SV setting 0

• Sets step 4 SV.

• Available only when program control function is selected during OUT/OFF key function selection

• Scaling low limit value to Scaling high limit value

Step 4 time setting 00:00

• Sets step 4 time.

• Available only when program control function is selected during OUT/OFF key function selection

• Setting range: 00:00 to 99:59

Step 5 SV setting 0

• Sets step 5 SV.

• Available only when program control function is selected during OUT/OFF key function selection

• Scaling low limit value to Scaling high limit value

Step 5 time setting 00:00

• Sets step 5 time.

• Available only when program control function is selected during OUT/OFF key function selection

• Setting range: 00:00 to 99:59

Step 6 SV setting 0

• Sets step 6 SV.

• Available only when program control function is selected during OUT/OFF key function selection

• Scaling low limit value to Scaling high limit value

Step 6 time setting 00:00

• Sets step 6 time.

• Available only when program control function is selected during OUT/OFF key function selection

• Setting range: 00:00 to 99:59

Step 7 SV setting 0

• Sets step 7 SV.

• Available only when program control function is selected during OUT/OFF key function selection

• Scaling low limit value to Scaling high limit value

Step 7 time setting 00:00

• Sets step 7 time.

• Available only when program control function is selected during OUT/OFF key function selection

• Setting range: 00:00 to 99:59

Step 8 SV setting 0

• Sets step 8 SV.

• Available only when program control function is selected during OUT/OFF key function selection

• Scaling low limit value to Scaling high limit value

Step 8 time setting 00:00

• Sets step 8 time.

• Available only when program control function is selected during OUT/OFF key function selection

• Setting range: 00:00 to 99:59

Step 9 SV setting 0

• Sets step 9 SV.

• Available only when program control function is selected during OUT/OFF key function selection

• Scaling low limit value to Scaling high limit value

Step 9 time setting 00:00

• Sets step 9 time.

• Available only when program control function is selected during OUT/OFF key function selection

• Setting range: 00:00 to 99:59

6.2 Sub setting mode

To go to the Sub settingmode,press the key whileholding downthe key in the PV/SVdisplay mode. Set each setting item with the or key, and register the value with the key.

Display Item, Function, Setting range Default value

AT (Auto-tuning) selection ATCancel

• Selects auto-tuning Perform/Cancel.

Not available for program control standby status and for control actions other than PID action.

• : AT Cancel : AT Perform

OUT1 (Heating) proportional band setting 2.5%

• Sets the proportional band for OUT1 (Heating side).

• ON/OFF action when set to 0.0.

• Setting range: 0.0 to 110.0%

OUT2 (Cooling) proportional band setting 1.0 times

• Sets the proportional band for OUT2 (cooling side).

• ON/OFF action when set to 0.0.

• Not available if Heating/Cooling control option is not added or

if OUT1 (Heating side) is ON/OFF action

• Settingrange: 0.0 to 10.0 times OUT1 (Heating) proportional band

OUT1 (Heating) integral time setting 200 seconds

• Sets the integral time.

• Setting the value to 0 disables the function. (PD action)

• Not available if OUT1 (Heating) is ON/OFF action

• Setting range: 0 to 1000 seconds

OUT1 (Heating) derivative time setting 50 seconds

• Sets the derivative time.

• Setting the value to 0 disables the function. (PI action)

• Not available if OUT1 (Heating) is ON/OFF action

• Setting range: 0 to 300 seconds

ARW setting 50%

• Sets the ARW (anti-reset windup).

• Available only for PID action.

• Setting range: 0 to 100%

OUT1 (Heating) proportional cycle setting

• Sets OUT1 (Heating) proportional cycle.

• Sets the proportional cycle.

• Not available for DC current output type or if OUT1 (Heating) is ON/OFF action.

• Setting range: 1 to 120 seconds

OUT2 (Cooling) proportional cycle setting 30 seconds

• Sets OUT2 (Cooling) proportional cycle.

• Not available if Heating/Cooling control option is not added or if cooling output is ON/OFF action.

• Setting range: 1 to 120 seconds

Manual reset setting 0.0

• Sets reset value manually.

• Available only for P or PD action.

• Proportional band converted value (For DC input, the

placement of the decimal point follows the selection.)

A1 value setting 0

• SetsA1 action point. Setting the value to 0 or 0.0 disablesthe function (except processhigh alarm and process low alarm).

• Not available if No alarm action, Timer function or Pattern end

output is selected during A1 type selection

• Setting range: See (Table 6.2-1).

A2 value setting 0

• SetsA2 action point. Setting the valueto 0 or 0.0 disables the function (except processhigh alarm and process low alarm).

• Not available if No alarm action, Timer function or Pattern end output is selected during A2 type selection

• Setting range: See (Table 6.2-1).

Relay contact:30sec Non-contact

voltage: 3sec

DC current: Not

available

(Table 6.2-1)

setting items such as the

For the inputs

with a

Alarm type Setting range High limit alarm -(Scaling span) to Scaling span Low limit alarm -(Scaling span) to Scaling span High/Low limits alarm 0 to Scaling span High/Low limit range alarm 0 to Scaling span Process high alarm Scaling low limit to Scaling high limit value Process low alarm Scaling low limit to Scaling high limit value High limit alarm with standby - (Scaling span) to Scaling span Low limit alarm with standby - (Scaling span) to Scaling span

High/Low limits alarm w/standby 0 to Scaling span

6.3 Auxiliary function setting mode 1

To go to Auxiliary function setting mode 1, press the key for approx. 3 seconds while holding down the key in the PV/SV display mode. Set each setting item with the or key, and register the value with the key.

Display Item, Function, Setting range Default value

PV/SV indication selection PV indication

• PV indication ( ) or SV indication ( ) can be selected. PV indication with key, SV indication with the key

• During input burnout, the PV/SV display flashes " " or " " even if SV is indicated on the display.

Set value lock selection Unlock

• Locks the set values to prevent setting errors. The setting item to be locked depends on the selection.

• When Lock 1 or Lock 2 is selected, PIDAuto- tuning cannot be

carried out.

• Becausethereislimitednon-volatilememory,besuretoselectLock 3

whenthesetvalueischangedfrequentlyviacommunication function.

• (Unlock):All set values can be changed.

(Lock 1): None of the set values can be changed.

(Lock 2): SV1 and SV2 can be changed during fixed valuecontrol. StepSV andstep timecan be changed during program control. Othersettingitemscannot be changed.

(Lock 3): All set values except input type and Controller/ Converter function can be changed. However, changed values revert to their previous value after the power is turned offbecause theyarenotsaved inthenon-volatilememory. (If the valueset by the communication functionis the sameas the value before thesetting, thevalue willnot be written in the non-volatile memory.) Do not change any setting item in

Auxiliaryfunction setting mode 2. If anyitem in the mode is changed, it will affect other SVandAlarmvalue.

Sensor correction setting 0.0

• Sets the correction value for the sensor. PV aftersensorcorrection =CurrentPV + (Sensorcorrection value)

• Setting range: –100.0 to 100.0 ( ) DC input: –1000 to 1000

Communication protocol selection ModbusASCII

• Selects the communication protocol.

• Available only when the Serial communication option is applied.

• : Unavailable

: ModbusASCII mode : Modbus RTU mode

Instrument number setting 0

• Sets the instrument number individually to each instrument when

communicating by connecting plural instruments in Serial communication.

• Available only when Serial communication option is added.

• Settingrange: 0 to 95(However,numberofconnectableunits: Max. 31 units)

Communication speed selection 9600bps

• Selects a communication speed to be equal to the speed of the

host computer.

• Available only when Serial communication option is added.

• : 2400bps : 4800bps

: 9600bps : 19200bps

decimal point, the negative low limit value is -199.9, and the positive high limit value is 999.9.

All alarm actions except for the Process alarm are a

deviation setting from theSV (mainset value).

7. Running

7.1 Start running.

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

(1) Turn the power supply to the KT2 ON.

For approx. 3sec after the power is switched ON, the sensor input characters and the temperature unit are indicated on the PV/SV display. See (Table 5.2-1) on page 8. During this time, all outputs and LED indicators are in an OFF status. After that, control starts indicating the following depending on the controller status.

• Fixed value control status Control starts indicating memory number on the MEMO/STEP display and PV (process variable) or SV (main set value) on the PV/SV display. (If PV indication is selected during PV/SV indication selection, PV is indicated. If SV indication is selected during PV/SV indication selection, SV is indicated.)

• Program control standby status The MEMO/STEP display is turned off, and the PV/SV display indicates input value or " ". (If PV indication is selected during PV/SV indication selection, PV is indicated. If SV indication is selected during PV/SV indication selection, " " is indicated.)

• Program control run status The MEMO/STEP display indicates step number,and the PV/SV display indicates input value or current step temperature. (If PV indication is selected during PV/SV indication selection, PV is indicated. If SV indication is selected during PV/SV indication selection, current step temperature is indicated.)

• When control output OFF function is working; The MEMO/STEP display is turned off, and the PV/SV display indicates " ".

(2) Input each set value.

Input each set value, referring to “6. Setup”.

(3) Turn the load circuit power ON.

The controller starts as follows depending on the setting.

• Fixed value control

Control starts so as to keep the control target at the SV.

• Program control

Program control run

To performprogramcontrolrun,pressthe key. At this timethe programcontrol starts withPV start.

PV start: When the program control starts, SV and step time are advanced to the PV,then the

program control is performed. (e.g.)PV is assumedto be 100 in the programpattern of Section“6.1 Mainsettingmode”.

If the program control is performed, the step SV advances from 0 to 100 , and the step time also advances from 1:00 to 0:30.

Program control stop

To stop program control, press the key for approx. 1 second. The program control stops, and the controller reverts to the program control standby mode.

Action after power is restored

If power failure occurs during the program control run, the control resumes from the point at which power failure occurred. If power failure occurs during program control standby mode, the control resumes from the program control standby mode.

Progressingtimeerrorafterpoweris restored:Within 1 minuteregardless of steptimeunit

• Converter

In the case of DC current output type, each input value (thermocouple, RTD, DC current, DC voltage)

is converted to 4 to 20mA DC and outputted. Input/output response is approx. 1 second. When using an alarm action, select Process alarm during A1, A2 type selection.

7.2 MV (Control output manipulated variable) indication

To indicate MV, hold down the key for approx. 3 seconds in the PV/SV display mode. Keep pressing the key until MV appears, though SV1 (step 1 SV) setting item appears during the process.

PV/SV display mode

Hold down the key for approx. 3 seconds. Keep pressing the key until MV appears, though SV1 (step 1 SV) setting item appears during the process.

(For approx.3sec)

MV (Control output manipulated variable) indication

The MEMO/STEP display indicates a memory number during fixed value control and a step number during program control. The PV/SV display indicates MV.

Flashes While MV is being indicated, the 1st decimal point from the right flashes

in 0.5 second cycles. To release MV indication function, press the key again or turn the power supply to the KT2 OFF,then ON.

7.3 Control output OFF function

This is a function to pause the control action or to turn the control output of the unused instrument of the plural units OFF even if the power to the instrument is supplied. To turn the control output OFF, press the key for approx. 1 second in the PV/SV display mode.

PV/SV display mode

Press the key for approx. 1 second.

(For approx. 1sec)

Control output OFF

The MEMO/STEP display is switched off and the PV/SV display indicates . Once the control output OFF function is enabled,

(For approx.1sec) the function cannot be released even if the power to the instrument

is turned OFF and ON again. To cancel the function, press the key again for approx. 1 second.

7.4 Auto-tuning (AT) Perform/Cancel

Auto-tuning Perform/Cancel can be selected during AT selection in the Sub setting mode.

PV/SV display mode

Press the key while holding down the key.

AT selection in the Sub setting mode

SelectAuto-tuning Perform ( ) with the key and Auto-tuning Cancel ( ) with the key, then press the key. The ATindicator flashes while performing auto-tuning. If Auto-tuning is cancelled during the process, P, I, D, ARW values return to the previous values. If PID auto-tuning does not finish in 4 hours after starting, PID auto-tuning is cancelled automatically.

8. Operation flowchart

PV/SV display mode

PV/SV display.

Alarm 1 (A1) setting procedures

reset it.

uxiliary function setting mode 1]

[Main setting mode]

Explanation of key

Character indication

PV indication when SV is

Automatically

selected, and vice versa

MV indication

Flashes

returns 2sec later.

Press the key.

(Fixedvalue control)

(In the case of Program control standby) PV indication:The MEMO/STEPdisplayis

SV indication: is indicated.

unlit. Only PV is indicated.

Press the key for 1 second.

Press the key.

Control output OFF

(Fixed value control)

Program control RUN

(Program control)

Press the key.

SV1

(Step 1 SV)

MEMO/STEP PV/SV , SV1

Step 1 time

MEMO/STEP PV/SV , Set value

SV2

(Step 2 SV)

MEMO/STEP PV/SV , SV2

Step 2 time

MEMO/STEP PV/SV , Set value

Step 3 SV

MEMO/STEP PV/SV , Step 3 SV

Step 3 time

MEMO/STEP PV/SV , Set value

Each time the key is pressed, the setting item is switched.

Set SV and time for the necessary step.

Step 9 SV

MEMO/STEP PV/SV , Step 9 SV

Step 9 time

MEMO/STEP

PV/SV , Set value

Reverts to the

Press the key for 3 seconds.

Press the key while holding down the key.

[Sub setting mode]

PV/SV , Selection

OUT1 (Heating)

proportional band

PV/SV , Set value

OUT2 (Cooling)

proportional band

PV/SV , Set value

OUT1 (Heating)

integral time

PV/SV , Set value

OUT1 (Heating)

derivative time

PV/SV , Set value

ARW

PV/SV , Set value

OUT1 (Heating)

proportional cycle

PV/SV , Set value

OUT2 (Cooling)

proportional cycle

PV/SV , Set value

Manual reset

PV/SV , Set value

(5)

A1 value

PV/SV , Set value

A2 value

PV/SV , Set value

Reverts to the PV/SV display.

• If ATis cancelled during the process, PID values return to previous values.

• Set the value with the , keys.

• ON/OFF action when set to 0.0

• Set the value with the , keys.

• Not available when OUT1 is ON/OFF

action

• Set the value with the , keys.

• Setting the value to 0 disables the function.

• Set the value with the , keys.

• Setting the value to 0 disables the

function.

• Set the value with the , keys.

• Available only for PID action

• Set the value with the , keys.

• Not available for DC current output

type or if OUT1 is ON/OFF action.

• Set the value with the , keys.

• Not available if OUT2 is ON/OFF action.

• Set the value with the , keys.

• Available only for P and PD action.

• Set the value with the , keys.

• Not available if ， or is selected during A1 type

selection.

• Set the value with the , keys.

• Not available if ， or is selected during A2 type

selection.

Press the key for 1 second.

Press the while holding down the for 3sec.

PV/SV indication

PV/SV or

Set value lock

PV/SV ,

Selection

Sensor correction

PV/SV , Set value

Communication protocol

PV/SV , Selection

Instrument number

PV/SV , Set value

Communication speed

PV/SV , Selection

• Select PV or SV with the , keys.

• Make a selection with the , keys.

• If Lock 1 or Lock 2 is selected, AT

does not work.

• Be sure to select Lock 3 when

using Serial communication.

• Set the value with the ,

keys.

• Make a selection with the , keys.

• Set the value with the ,

keys.

• Make a selection with the , keys.

Reverts to the PV/SV display.

• : This means that if the key is pressed, the set value is saved, and the controller proceeds to the next setting item.

• If the key is pressed for approx. 3sec, the controller

reverts to the PV/SV display mode from any mode.

• Characters and set (selected) value of the setting item are

indicated on the PV/SV display alternately.

• Setting items with dotted lines are optional and they appear

only when the options are added.

(Numbers(1)to (5) are indicatedontheflowchart.)

(1) Select an alarm type during [A1 type selection].

[If ， or is selected, (2) to (5)

are not indicated.] (2) Set A1 hysteresis during [A1 hysteresis setting]. (3) Set A1 action delayed timer during [A1 action delayed

timer].

(If input enters alarm action range and setting time has elapsed, the alarm is activated.)

(4) Select if the alarm output is held or not during [Alarm

HOLD function selection] (common to A1, A2). (5) Set A1 action point during [A1 value setting].

[Note] If an alarm type is changed, the alarm value

becomes 0 (0.0). Therefore it is necessary to

(2)

Input type (Character indication) and range

[Auxiliary function setting mode 2]

(4)

: K -200 to 1370 : -199.9 to 400.0 : J -200 to 1000 : R 0 to 1760 : S 0 to 1760 : B 0 to 1820 : E -200 to 800 : T -199.9 to 400.0 : N -200 to 1300

: PL- 0 to 1390

: C(W/Re5-26) 0 to 2315

: Pt100 -199.9 to 850.0 : JPt100 -199.9 to 500.0

: Pt100 -200 to 850

: JPt100 -200 to 500 : 4 to 20mA DC -1999 to 9999 : 0 to 20mA DC -1999 to 9999

Press key for 3sec while holding down the key.

: K -320 to 2500 : -199.9 to 750.0 : J -320 to 1800 : R 0 to 3200 : S 0 to 3200 : B 0 to 3300 : E -320 to 1500 : T -199.9 to 750.0 : N -320 to 2300

: PL- 0 to 2500

: C(W/Re5-26) 0 to 4200

: Pt100 -199.9 to 999.9 : JPt100 -199.9 to 900.0

: Pt100 -300 to 1500

: JPt100 -300 to 900 : 0 to 1V DC -1999 to 9999 : 0 to 5V DC -1999 to 9999 : 1 to 5V DC -1999 to 9999 : 0 to 10V DC -1999 to 9999

Alarm type

(Highlimitalarm):The alarm actionis a deviationsettingfrom the SV.

Thealarm is activated if the input value reaches the high limit alarm value.

(Low limit alarm): The alarm action is a deviation setting from the SV. The

alarm is activated if the input value goes under the low limit alarm value.

(High/Low limits alarm): Combines High limit and Low limit alarm actions. When

input value reaches high limit alarm value or goes under the low limit alarm value, the alarm is activated.

(High/Low limit range alarm): When input value is between the high limit alarm

value and low limit alarm value, the alarm is activated.

(Process high alarm)， (Process low alarm): Within the scale range

of the controller, alarm action points can be set at random and if the input reaches the randomly set action point, the alarm is activated.

(High limit alarm with standby), (Low limit alarm with standby)

(High/Low limits alarm with standby)

When the power to the controller is turned on, even if the input enters the alarm action range, the alarm is not activated. (If the controller is allowed to keep running, once the input exceeds the alarm action point, the standby function will be released.)

(Timer function): If external signal enters, timer counting starts, and the action

selected during Delay action type selection is outputted after the set delay time has elapsed.

(Pattern end output): When the program ends normally, pattern end output is

turned on. The output is maintained until it is released with the key.

Input type

PV/SV , Selection

Scaling high limit

PV/SV , Set value

Scaling low limit

PV/SV , Set value

Decimal point place

PV/SV , Selection

PV filter time constant

PV/SV , Set value

OUT1(Heating)high limit

PV/SV , Set value

OUT1(Heating)lowlimit

PV/SV , Set value

OUT1(Heating)

ON/OFF actionhysteresis

PV/SV , Set value

EV1 output

PV/SV , Selection

EV2 output

PV/SV , Selection

Overlap/Dead band

PV/SV , Set value

OUT2 (Cooling)

ON/OFF actionhysteresis

PV/SV ,Set value

(1)

A1 type

PV/SV , Selection

A2 type

PV/SV , Selection

A1 hysteresis

PV/SV , Set value

A2 hysteresis

PV/SV , Set value

• Make a selection with the , keys.

• Default value:

• Set the value with the , keys.

• Default value: 1370

• Set the value with the , keys.

• Default value: -200

• Make a selection with the , keys.

• Available only for DC input

• Set the value with the , keys.

• Not available if OUT1 is ON/OFF action

• Set the value with the , keys.

• Not available if OUT1 is ON/OFF action

• Set the value with the , keys.

• Available only when OUT1 is ON/OFF action

• Make a selection with the , keys.

• Not availableif Heat/Cool controloptionisadded

• Make a selection with the , keys.

• Not availableif Serialcommunication optionis added

• Set the value with the , keys.

• Availableonlywhen Heat/Cool controloptionis added

• Set the value with the , keys.

• Available when Heat/Coolcontroloption is added

and when OUT2 is ON/OFF action

• Make a selection with the , keys.

• Default value:

• Make a selection with the , keys.

• Default value:

• Set the value with the , keys.

• Not available if ， or is selected during A1 type selection

• Set the value with the , keys.

• Not available if ， or is selected during A2 type selection

(3)

A1 action delayed

timer

PV/SV , Set value

A2 action delayed

timer

PV/SV , Set value

Alarm HOLD function

PV/SV , Selection

Delay action type

selection

PV/SV , Selection

Delay time

PV/SV , Set value

Direct/Reverse control

PV/SV , Selection

ATbias

PV/SV , Set value

Setting item not used

PV/SV , Set value

OUT/OFF key function

PV/SV , Selection

Step time unit

PV/SV , Selection

DI (Digital input) function

PV/SV , Selection

Output status selection

when input abnormal

PV/SV , Selection

Controller/Converter

PV/SV , Selection

Reverts to the PV/SV display.

• Set the value with the , keys.

• Not available if ， or is selected during A1 type selection

• Set the value with the , keys.

• Not available if ， or

is selected during A2 type selection

• Make a selection with the , keys.

• Common setting item forA1 andA2

Not available if ， or is selected during A1 or A2 type selection.

• Make a selection with the , keys.

• Available only when is selected during A1 orA2 type selection.

• Set the value with the , keys.

• Available only when is selected during

A1 or A2 type selection.

• Make a selection with the , keys.

• Default value: (Reverse control action)

• Set the value with the , keys.

• Not available for DC input.

• Do not set this item even if is indicated on the PV/SV display.

• Make a selection with the , keys.

• Selects fixed value control or program control.

• Make a selection with the , keys.

• Not available if is selected during

OUT/OFF key function selection

• Make a selection with the , keys.

•Not available ifSerialcommunicationoptionisadded

• Make a selection with the , keys.

• Available only for DC current output type with DC input

• Make a selection with the , keys.

• Available only for DC current output type

9. PID auto-tuning

In order to set each value of P, I, D and ARW automatically, the auto-tuning process should be made to fluctuate to obtain an optimal value.

Notice

• Perform auto-tuning during trial run.

• During auto-tuning, none of the setting items can be set.

• If auto-tuning starts during program control run, auto-tuning performs with SV at which auto-tuning starts. The step time does not progress until auto-tuning ends.

• If power failure occurs during auto-tuning, auto-tuning stops.

• For DC input, theAT processwillfluctuatearoundthe SV for conditionsof (A),(B) and (C)below.

• Sometimes the auto-tuning process will not fluctuate if auto-tuning is performed at or near room temperature. Therefore auto-tuning might not finish normally.

(A) In the case of a large difference between the SV and processing temperature as the

temperature is rising

When AT bias is set to 20 , the ATprocess will fluctuate at the temperature 20 lower than the SV.

Temperature 20 lower than the SV

(4)

Temperature

AT starting point

(1)

(2) (3)

(B) In the case of a stable control

The AT process will fluctuate around the SV.

Temperature

AT starting point

(1)

(2)

(1) Calculating PID constant (2) PID constant calculated

(3) Controlled by the PID constant

set by auto-tuning.

(4) AT bias value

Time

(Fig. 9-1)

(1) Calculating PID constant (2) PID constant calculated

(3) Controlled by the PID constant

set by auto-tuning.

Time

(Fig. 9-2)

(3)

temperature is falling

When AT bias is set to 20 , the AT process will fluctuate at the temperature 20 higher than the SV.

Temperature 20 higher than

Temperature

the SV

(4)

AT starting point

(1)

(2)

Time

(3)

(1) Calculating PID constant

(2) PID constant calculated

(3) Controlled by the PID constant

set by auto-tuning.

(4) AT bias value

(Fig. 9-3)

10. Action explanation

10.1 OUT1 (Heating) action

Heating (Reverse) action Cooling (Direct) action

Control

action

Relay contact

output

(OUT1)

Non-contact

voltage output

(OUT1)

DC current

output

(OUT1)

Indicator

(OUT) Green

Proportional band

OFF

SV setting

Cycle action is performed according to deviation

12V DC

Cycle action is performed according to deviation Cycle action is performed according to deviation

20mA DC 20 to 4mA DC

Changes continuously according to deviation

Lit Unlit

+ +

12/0V DC

0V DC

4mA DC

Unlit

Cycle action is performed according to deviation

+ +

0V DC 12V DC

+++

4mA DC

Changes continuously according to deviation

Proportional band

SV setting

0/12V DC

4 to 20mA DC

20mA DC

OFF

Lit

: Acts ON or OFF.

10.2 OUT1 (Heating) ON/OFF action

Heating (Reverse) action Cooling (Direct) action

Hysteresis

Control

action

OFF

Relay contact

output

(OUT1)

Non-contact

voltage output

(OUT1)

DC current

output

(OUT1)

+ +

20mA DC

SV setting

0V DC12V DC

4mA DC

Hysteresis

SV setting

0V DC 12VDC

4mA DC

20mA DC

OFF

Indicator

(OUT) Green

: Acts ON or OFF.

Lit

Unlit

LitUnlit

10.3 A1, A2 action

High limit alarm

A1 hysteresis

Low limit alarm

High/Low limits alarm

A1 hysteresis

Alarm

action

Alarm action

OFF

A1 set point

High/Low limit range alarm

A1 set point A1 set point

High limit alarm with standby High/Low limits alarm with standbyLow limit alarm with standby

A1 set point

setting

+ A1 set point

A1 hysteresis A1 hysteresis A1 hysteresis

A1 set point

A1 hysteresis A1 hysteresis

+ A1 set point

OFF

A1 set point SV

OFF

A1 set point

+A1 set point

setting

Process high alarm

A1 set point

+ A1 set point

setting

OFF

A1 set point

OFF

A1 set point SV

setting

Process low alarm

setting

: Standby functions in this section. EV1 indicator lights up when terminals 8 and 9 are connected, and goes off when between them are disconnected. EV2 indicator lights up when terminals 11 and 12 are connected, and goes off when between them are disconnected.

A1 set point

A1 hysteresis

A1 set point

10.4 Heating/Cooling control action (Heating/Cooling control option)

Heating P-band (Cooling P-band)

Control action

Relay contact

output

(OUT1)

Non-contact

voltage output

(OUT1)

DC current

output

(OUT1)

Relay contact

output

(EV1/OUT2)

Indicator

(OUT)

Green

Indicator

(EV1)

Yellow

: Acts ON (lit) or OFF (unlit). : Represents Heating control action. : Represents Cooling control action.

Heaing

action

(Cooling

action)

OFF

SV setting

Cycle action is performed according to deviation.

12V DC 12/0V DC 0V DC

Cycle action is performed according to deviation.

20mA DC

20 to 4mA DC

4mA DC

Changes continuously according to deviation.

Cycle action is performed according to deviation.

Lit

Unlit Lit

OFF

Unlit

10.5 Heating/Cooling control action (When setting dead band) (Heating/Cooling control option)

Control action

Relay contact

output

(OUT1)

Non-contact

voltage output

(OUT1)

DC current

output

(OUT1)

Relay contact

output

(EV1/OUT2)

Indicator

(OUT) Green

Indicator

(EV1) Yellow

Heating P-band

Heatng

action

OFF

SV setting

Cycle action is performed according to deviation.

12V DC 12/0V DC

Cycle action is performed according to deviation.

20mA DC

Changes continuously according to deviation.

Lit

Unlit

20 to 4mA DC

Dead band (Cooling P-band)

(Cooling

action)

0V DC

4mA DC

8 8

Cycle action is performed according to deviation.

Unlit

OFF

Lit

: Acts ON (lit) or OFF (unlit).

: Represents Heating control action. : Represents Cooling control action.

10.6 Heating/Cooling control action (When setting overlap 10.7 Timer action band) (Heating/Cooling control option)

(Contact Closed)

OFF

(Contact Open)

OFF ON

OFF

DLY

DLY: Delay time setting

Control action

Relay contact

output

(OUT1)

Non-contact

voltage output

(OUT1)

DC current

output

(OUT1)

Relay contact

output

(EV1/OUT2)

Indicator

(OUT) Green

Indicator

(EV1) Yellow

: Acts ON (lit) or OFF (unlit). : Represents Heating control action.

: Represents Cooling control action.

Heating P-band

Cooling P-band

Heating

action

OFF

Cycle action is performed according to deviation.

12V DC 12/0V DC

Cycle action is performed according to deviation.

20mA DC

Changes continuously according to deviation.

Cycle action is performed according to deviation.

Lit

Unlit

Overlap

band

SV setting

20 to 4mA DC

(Cooling

action)

0V DC

4mA DC

(Digital input)

ON delay

OFF

OFF delay

ON/OFF

delay

Unlit

Lit

DLY

11. Specifications

11.1 Standard specifications

Mounting : Flush Setting : Input system using membrane sheet key Display PV/SVdisplay : Red LED 4 digits, charactersize,8.7 x 5 mm (H x W)

MEMO/STEPdisplay:GreenLED 1 digit,character size,8.7 x 5 mm (H x W)

Accuracy (Setting and Indication):

Thermocouple : Within 0.2% of each input span 1 digit,or within 2 (4 ), whicheveris greater

However R, S input, 0 to 200 (400 ): Within 6 (12 ) B input, 0 to 300 (600 ): Accuracy is not guaranteed

K, J, E, T, N input, less than 0 (32 ): Within 0.4% of input span 1 digit or

within 4 (8 ), whichever is greater

RTD : Within 0.1% of each input span 1 digit, or

within 1 (2 ), whichever is greater DC current : Within 0.2% of each input span 1 digit DC voltage : Within 0.2% of each input span 1 digit

Input sampling period : 0.25 seconds Input Thermocouple : K, J, R, S, B, E, T, N, PL- , C (W/Re5-26) External resistance, 100 or less

(However, B input: External resistance, 40 or less) RTD : Pt100, JPt100, 3-wire system

Allowable input lead wire resistance (10 or less per wire) DC current : 0 to 20mA DC, 4 to 20mA DC

Input impedance: Externally install 50 shunt resistor.

Allowable input current (50mA DC or less) DC voltage : 0 to 1V DC Input impedance (1M or more)

Allowable input voltage (5V DC or less)

Allowable signal source resistance (2k or less)

: 0 to 5V DC, 1 to 5V DC, 0 to 10V DC Input impedance (100k or more)

Allowable input voltage (15V DC or less)

Allowable signal source resistance (100 or less)

Control output (OUT)

Event output 1 (EV1), Event output 2 (EV2)

Control action

PID action (with auto-tuning function) PI action: When derivative time is set to 0 PD action (with manual reset function): When integral time is set to 0 P action (with manual reset function): When derivative and integral time are set to 0. ON/OFF action: When proportional band is set to 0 OUT1 (Heating) proportional band : 0.0 to 110.0% (ON/OFF action when set to 0.0) OUT1 (Heating) Integral time : 0 to 1000sec (OFF when set to 0) OUT1 (Heating) Derivative time : 0 to 300sec (OFF when set to 0) OUT1 (Heating) proportional cycle: 1 to 120sec (Not available for DC current output type) ARW : 0 to 100% Manual reset : Proportional band converted value OUT1 (Heating) ON/OFF action hysteresis: 0.1 to 100.0 ( ), or 1 to 1000

OUT1 (Heating) output limit : 0 to 100% (DC current output type: –5 to 105%)

Relay contact : 1a, Control capacity 3A 250V AC (resistive load)

1A 250V AC (inductive load cosø=0.4)

Electrical life, 100,000 cycles Non-contact voltage (For SSR drive): 12

V DC Max. 40mA DC (short circuit protected)

DC current : 4 to 20mA DC, Load resistance, Max. 550 One type can be selected from 10 alarm types (including No alarm action), Timer function and

Pattern end output.

Alarm setting range : See (Table 6.2-1) on page 17. Action : ON/OFF action Hysteresis TC, RTD input : 0.1 to 100.0 ( )

DC current, voltage input: 1 to 1000 (The placement of the

decimal point follows the selection) A1,A2 delayed timerfunction: 0 to 9999 seconds Alarm output HOLD function: Once the alarm is activated, the alarm output is maintained

until the power supply to the instrument is turned off.

Timer function : 0 to 9999 seconds

Pattern end output : Patternend output is turned on whenthe program endsnormally. EV1 (Relay contact 1a) : Control capacity, 3A 250V AC (resistive load)

1A 250V AC (inductive load cosø=0.4)

Electrical life, 100,000 cycles

EV2 (Open collector) : Control capacity, 0.1A (maximum) 24V DC

DI (Digital input)

DI (Digital input) has 3 functions.

• SV1/SV2 external selection function SV1 or SV2 can be switched by external contact. However, this function is not available if Program control function is selected during OUT/OFF key function selection.

DI terminals between 10 and 12 Open: SV1 DI terminals between 10 and 12 Closed: SV2

• OUT/OFF (RUN/STOP) external selection function Control output OUT/OFF (Fixed value control) or Program control RUN/STOP can be switched.

[Fixed value control]

DI terminals between 10 and 12 Open: OUT (Control allowed) DI terminals between 10 and 12 Closed: OFF (Control prohibited, control output OFF)

[Program control]

Program control RUN/STOP can be switched if the following operation is conducted during program control standby.

Between DI terminals from Open to Closed: RUN (program control run)

Between DI terminals from Closed to Open: STOP (program control stop) If DI terminal contact is changed from Closed to Open while pattern end output is turned on after program control ended, pattern end output is turned off.

Controller

status

DION

ContactClosed

DIOFF

ContactOpen

Programcontrolisperformed

whenthecontactischanged

fromOpentoClosed.

Standby mode

Contact Open

Standby mode

ProgramcontrolRUN

Contact Closed

Performsprogramcontrol.

Programcontrolstopswhen thecontactis changedfrom

ClosedtoOpen.

ProgramcontrolSTOP

Contact Open

Stopsprogramcontrol.

Circuit current when closed: 6mA

• Timer function Timer counting starts by the external contact, and after the set delay time has elapsed, the selected event output is turned on.

Program control function

If program control function is selected during OUT/OFF key function selection, 1 pattern 9 steps program control can be performed. To start program control, press the key during program control standby.

(To stop the program control, press the key for approx. 1 second again.) Progressing time error: Within 1 minute Pattern end output: Pattern end output can be selected by keypad.

Converter function

If Converter function is selected during Controller/Converter function selection, the following control parameters are automatically set, and the controller can be used as a converter. (However, available only for DC current output type). Input/output response is approx. 1 second. SV1 (main set value): Scaling low limit value, OUT1 (Heating) integral time: 0, OUT1 (Heating) derivative time: 0, OUT1 (Heating) proportional band: 100.0%, Manual reset: 0.0, A1 value: 0, A2 value: 0, Direct/Reverse action: Direct action

Attached functions

[Set value lock] Locks set values to prevent setting errors. [Sensor correction] The PV is corrected when the temperatures in the controlled location differs from

those of the sensor location.

[PV filter] Reduces the effect of noise by putting first order lag filter in the PV. [Power failure countermeasure] The setting data is backed up in the non-volatile IC memory.

[Self-diagnosis] The CPU is monitored by a watchdog timer, and when an abnormal status is found

on the CPU, the controller is switched to warm-up status.

[Automatic cold junction temperature compensation] (Only thermocouple input type)

This detects the temperatureat the connecting terminal between the thermocouple and the instrument, and alwaysmaintains the same statusas when the reference junctionis locatedat 0 (32 ).

[Burnout]

When the thermocoupleor RTDinputisburntout, OUT1andEV1/OUT2(Heating/Coolingcontroloption)are turnedoff[for DCcurrentoutput type,OUT1 (Heating)low limitvalue],andPV/SV displayflashes “ ”.

[Warm-up indication]: After the power supply to the instrument is turned on, the sensor input

characters and temperature unit are indicated on the PV/SV display for approx. 3 seconds.

[Temporary PV/SV indication] If the Increase key is pressedduringthe PV/SVdisplay mode, thenthe

opposite value to the value selectedduring PV/SV indication selection is indicated temporarily. The value automatically reverts to the previous value in 2 seconds.

[Input abnormality indication]

Outputstatus

selection

wheninput

abnormal

Contents and

Indication

Overscale Measured value has exceeded Indication range high limit value.

" " flashes.

Underscale Measured value has dropped

below Indication range low limit value.

" " flashes.

[Output status selection when input abnormal] is available only for DC input and DC current output. For other inputs and outputs except for DC input and DC current output, the output status will be the same as when OFF is selected during [Output status selection when input abnormal]. (*): Outputs a value between OFF (4mA) and ON (20mA) or between OUT1 (Heating side) low limit

value and OUT1 (Heating side) high limit value, depending on deviation.

Thermocouple and RTD input

Input Input range Indication range Control range

K，T

Pt100

JPt100

Indication range and Control range for thermocouple inputs other than the above: Input range low limit value –50 (100 ) to Input range high limit value +50 (100 )

DC input

Indication range: Scaling low limit value–Scaling span x 1% to Scaling high limit value– Scaling span x 10%

Control range: Scaling low limit value–Scaling span x 1% to Scaling high limit value– Scaling span x 10%

DC input disconnection: WhenDC input is disconnected,PV/SVdisplayflashes“ ”for4 to 20mA

DC and1 to 5V DC inputs, and“ ”for 0 to 1V DC input.For 0 to 20mADC, 0 to 5V DC and 0 to

10V DC inputs, the PV/SV display indicatesthe value correspondingwith 0mAor 0V input.

Output status

Controller Converter

OUT1 OUT2 OUT1

Direct Reverse Direct Reverse Direct Reverse

ON (20mA) or OUT1 high

limit value (*) OFF (4mA) or OUT1 low

OFF(4mA) or OUT1 low

limit value

OFF

ON (20mA) or OUT1 high

limit value

OFF (4mA) or OUT1 low

limit value

ON (20mA)

OFF (4mA) or OUT1 low

limit value

or OUT1 high

limit value (*) OFF(4mA) or

OUT1 low

OFF

OFF(4mA) or OUT1 low

limit value

ON (20mA) or OUT1 high

limit value

–199.9 to 400.0 –199.9 to 450.0 –205.0 to 450.0 –199.9 to 750.0 –199.9 to 850.0 –209.0 to 850.0

–199.9 to 850.0 –199.9 to 900.0 –210.0 to 900.0

–200 to 850 –210 to 900 –210 to 900

–199.9 to 999.9 –199.9 to 999.9 –211.0 to 1099.9

–300 to 1500 –318 to 1600 –318 to 1600

–199.9 to 500.0 –199.9 to 550.0 –206.0 to 550.0

–200 to 500 –207 to 550 –207 to 550

–199.9 to 900.0 –199.9 to 999.9 –211.0 to 999.9

–300 to 900 –312 to 1000 –312 to 1000

However, “ ” or “ ” flashes when the range of –1999 to 9999 is exceeded.

Circuit insulation configuration

EV1/OUT2 output

CPU

Input

1 2

Insulated

OUT

Communication

DI (Digital input)

EV2 output

Power

543

When OUT is non-contact voltage output or

DC current output,A is not insulated from B.

A: Terminals 3, 4 B: Terminals 10, 11, 12

Insulation resistance : 10M or more, at 500V DC Dielectric strength : 1.5kV AC for 1 minute between input terminal and power terminal

1.5kV AC for 1 minute between output terminal and power terminal

Supply voltage : 100 to 240V AC 50/60Hz, 24VAC/DC 50/60Hz Allowable voltage fluctuation: 100 to 240VAC: 85 to 264V AC, 24V AC/DC: 20 to 28V AC/DC Power consumption : Approx. 5VA Ambient temperature : 0 to 50 (32 to 122 )

Ambient humidity : 35 to 85%RH (no condensation)

B is shorted, and if

Weight :Approx. 120g External dimensions : 48 x 24 x 98.5mm (W x H x D) Case (Material, Color) : Flame-resistant resin, Ash gray Accessories included : Instruction manual 1 copy, Mounting frame 1 piece Accessories sold separately: Shunt resistor 1 piece (50 ) : AKT4810

Terminal cover 1 piece : AKT2801

11.2 Optional specifications Heating/Cooling control (option)

Cooling proportional band: 0.0 to 10.0 times OUT proportional band (ON/OFF action when set to 0.0) Cooling Integral time and Cooling derivative time are the same as those of OUT action. Cooling proportional cycle: 1 to 120 seconds Overlap band/Dead band setting range

TC, RTD input: -100.0 to 100.0 ( ) DC current, voltage input: -1000 to 1000 (The placement of the decimal point follows the selection)

Cooling output ON/OFF action hysteresis setting

TC, RTD input: 0.1 to 100.0 ( ) DC current, voltage input: 1 to 1000 (The placement of the decimal point follows the selection)

Output:Relay contact 1a,Controlcapacity 3A250VAC(resistiveload), 1A250VAC(inductiveloadcosø=0.4)

Serial communication (option)

The following operations can be carried out from the external computer. (1) Reading and setting of SV, PID values and each set value (2) Reading of the PV (input value) and action status (3) Change of the functions

Communicationmethod : Half-duplex

Cable length : Maximum communication distance 1,000m

Cable resistance:Within 50 (The terminator is not necessary or

120 or more on the PLC side.)

Communication line : EIA RS-485

Numberof connectableunits: Maximum 31 units

Communication speed : 9600bps (2400, 4800, 9600, 19200bps) Selectable by keypad Synchronous system : Start-stop synchronous Instrument number : 0 (0 to 95) Selectable by keypad

Communicationprotocol : Modbus ASCII (ModbusASCII, Modbus RTU) Selectable by keypad

Code form :ASCII (Modbus ASCII), Binary (Modbus RTU) (*) Error detection : Parity, LRC (ModbusASCII), CRC (Modbus RTU) (*) Error correction : Command request repeat system Data format Start bit: 1 bit Data bit: 7 bits (Modbus ASCII), 8 bits (Modbus RTU) (*)

Parity: Even (Modbus ASCII), No parity (Modbus RTU) (*), Stop bit: 1 bit (*):Automatically selected upon selecting the communication protocol.)

12. Troubleshooting

If any malfunctions occur, refer to the following items after checking the power supply to the controller.

12.1 Indication Problem Presumed cause and solution

The PV/SV display is indicating [ ]. The PV/SV display is indicating [ ”].

The PV/SV display is flashing [ ].

• Control output OFF function is working. To release the function, press the key for approx. 1 second.

• This is program standby status. If Program control function is selected during OUT/OFF key functon selection and if SV is selected during PV/SV indication selection, “ ” is indicated during program standby. If PV is selected during PV/SV indication selection, the PV is indicated.

• Burnout of Thermocouple, RTD or disconnection of DC voltage (0 to

1V DC). Change each sensor.

How to check whether the sensor is burnt out

[Thermocouple]

If the input terminals of the instrument are shorted and if a value around room temperature is indicated, the instrument is likely to be operating normally, however, the sensor may be burnt out.

[RTD]

If approximate 100 of resistance is connected to the input terminals between A-B of the instrument and between Bapproximate 0 (32 ) is indicated, the instrument is likely to be operating normally, however,thesensor may be burnt out.

[DC voltage (0 to 1V DC)]

If the input terminals of the instrument are shorted and if a scaling low limit value is indicated, the instrument is likely to be operating normally, however, the signal wire may be disconnected.

The PV/SV display is flashing [ ].

The PV/SV display keeps indicating the value which was set during Scaling low limit setting.

The indication of the PV/SV display is abnormal or unstable.

The PV/SV display is indicating [ ].

• Check whether the input signal source for DC voltage (1 to 5V DC) or

DC current (4 to 20mA DC) is disconnected.

How to check whether the input signal wire is disconnected

[DC voltage (1 to 5V DC)]

If the input to the input terminals of the instrument is 1V DC and if a scaling low limit value is indicated, the instrument is likely to be operating normally, however, the signal wire may be disconnected.

[DC current (4 to 20mA DC)]

If the input to the input terminals of the instrument is 4mA DC and if a scaling low limit value is indicated, the instrument is likely to be operating normally, however, the signal wire may be disconnected.

• Check whether theinputsignalwires ofthermocouple, RTDorDCvoltage (0 to 1V DC) are securely connected to the instrument input terminal. Ensurethat the sensor terminalsare connected to the instrumentinput terminals securely.

• Check whether the input signal wires for DC voltage (1 to 5V DC) or DC

current (4 to 20mA DC) are securely connected to the instrument input terminals.

• Check whether the polarity of thermocouple or compensating lead wire is

correct. Check whether codes (A, B, B) of the RTD agree with the instrument terminals. Ensure that they are wired properly.

• Check whether the input signal source for DC voltage (0 to 5V DC, 0 to 10V DC) and DC current (0 to 20mA DC) is disconnected.

How to check whether the input signal wire is disconnected

[DC voltage (0 to 5V DC, 0 to 10V DC)]

If the input to the input terminals of the instrument is 1V DC, and if a valuecorresponding to 1V DC is indicated, the instrumentis likelyto be operating normally, however, the signal wire may be disconnected.

[DC current (0 to 20mA DC)]

If the input to the input terminals of the instrument is 1mA DC, and if a value corresponding to 1mA DC is indicated, the instrument is likely to be operatingnormally, however, the signal wire may be disconnected.

• Check whether the input lead wire terminals for DC voltage (0 to 5V DC,

0 to 10V DC) or DC current (0 to 20mA DC) are securely connected to the instrument input terminals.

• Check whether the sensor input and temperature unit ( or ) setting are correct. Setthe sensorinput andthetemperatureunit ( or ) properly.

• Sensor correcting value is unsuitable. Set it to a suitable value.

• AC leaks into the sensor circuit. Use an ungrounded type sensor.

• There may be equipment that interferes with or makes noise near the

controller. Keep equipment that interferes with ormakesnoise, away from the controller.

• Internal memory is defective.

Contact the agent or

Panasonic Electric Works Co., Ltd.

12.2 Key operation Problem Presumed cause and solution

• Unable to set the SV1, P, I, D, proportional cycle or alarm.

• The values do not change by the , keys.

SV2 cannot be set. • SV1/SV2 external selection function has not been selected during

The setting indication does not change within the input range even if the , keys are pressed, and new values are unable to be set.

• A set value lock mode (Lock 1 or Lock 2) has been selected. Release the lock mode.

• PID auto-tuning is performing. Cancel auto-tuning.

• No alarm action, Timer function or Pattern end output has been selected duringA1, A2 type selection. Select an alarm type after checking the selection.

DI (Digital input) function selection. Select SV1/SV2 external selection function after checking the selection. Not available if Serial communication option is applied.

• Scaling high or low limit value in Auxiliary function setting mode 2 may be set at the point where the value does not change. Set it to a suitable value in Auxiliary function setting mode 2.

12.3 Control Problem Presumed cause and solution

Temperature does not rise. • Sensor is out of order. Replace the sensor.

• Check whether sensor or actuator is securely connected to the input or output terminals of the instrument.

• Ensure that the wiring of sensor and actuator are correct.

The control output remains in an ON status. The control output remains in an OFF status. Program control ends soon even if it is performed. Timerdoes not work. • Check whether Delay action type or Delay time is set properly.

For all other malfunctions, please contact our main office or dealers.

• OUT1(Heating) low limit value in Auxiliary function setting mode 2 is set to 100% or higher. Set it to a suitable value.

• OUT1(Heating) high limit value in Auxiliary function setting mode 2 is set to 0% or less. Set it to a suitable value.

• Step time has been set to 00:00.

Set the step time. Ensure that the value is set or selected properly.

• Check whether Timer function has been selected during DI (Digital input) function selection. Select the Timer function after checking. If Serial communication option is applied, DI (Digital input) function selection is not available.

13. Character table

Photocopiable material

[Main setting mode]

Indication Setting item Default value Data

SV1 (step 1 SV) Step 1 time 00:00 SV2 (step 2 SV) Step 2 time 00:00 Step 3 SV Step 3 time 00:00 Step 4 SV Step 4 time 00:00 Step 5 SV Step 5 time 00:00 Step 6 SV Step 6 time 00:00 Step 7 SV Step 7 time 00:00 Step 8 SV Step 8 time 00:00 Step 9 SV Step 9 time 00:00

0 0 0 0 0 0 0 0 0

[Sub setting mode]

Indication Setting item Default value Data

AT (Auto-tuning) AT Cancel OUT1 (Heating) proportional band 2.5% OUT2 (Cooling) proportional band 1.0 times OUT1 (Heating) integral time 200 seconds OUT1 (Heating) derivative time 50 seconds ARW 50%

Relaycontact: 30sec

OUT1 (Heating) proportional cycle

OUT2 (Cooling) proportional cycle 30 seconds Manual reset A1 value A2 value

Non-contact: 3sec DC current:

Unavailable

0.0 0 0

[Auxiliary function setting mode 1]

Indication Setting item Default value Data

PV/SV indication PV indication Set value lock Unlock Sensor correction

0.0 Communication protocol Modbus ASCII Instrument number 0 Communication speed 9600bps

[Auxiliary function setting mode 2]

Indication Setting item Default value Data

Input type Scaling high limit value Scaling low limit value

K: -200 to 1370 1370

-200 Decimal point place No decimal point PV filter time constant 0.0 seconds OUT1 (Heating) high limit 100% OUT1 (Heating) low limit 0% OUT1 (Heating)ON/OFFactionhysteresis

1.0 EV1 output A1 output EV2 output A2 output Overlap band/Dead band

OUT2 (Cooling)ON/OFFactionhysteresis

0.0

1.0 Alarm 1 (A1) type No alarm action Alarm 2 (A2) type No alarm action Alarm 1 (A1) hysteresis Alarm 2 (A2) hysteresis

1.0

1.0 A1 action delayed timer 0 seconds A2 action delayed timer 0 seconds Alarm HOLD function Alarm Not Holding Delay action type ON delay Delay time 0 seconds

Direct (Cooling)/Reverse (Heating) control Reverse (Heating)

AT bias

20 Setting item not used OUT/OFF key function Control output OUT/OFF Step time unit Hour:Minute

DI (Digital input) function Outputstatus selection wheninput abnormal

SV1/SV2 external selection

Output OFF Controller/Converter function Controller function

Panasonic Electric Works Co., Ltd. Automation Controls Business Unit

Head Office: 1048 Kadoma, Kadoma-shi, Osaka 571-8686, Japan Telephone : Japan (81) Osaka (06) 6908-1050 Facsimile : Japan (81) Osaka (06) 6908-5781

Pursuant to the directive 2004/108/EC, article 9(2) Panasonic Electric Works Europe AG Rudolf-Diesel-Ring 2 83607 Holzkirchen, Germany This product has been developed / produced for industrial use only.

No.KT21E3 2009.11

Panasonic KT2 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual