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Panasonic KT4 Series Temperature Controller User's Manual

Summary

The KT4 Temperature Controller offers precise industrial temperature monitoring and control using multiple selectable inputs (Thermocouple, RTD, DC Voltage, DC Current) and versatile outputs. This comprehensive manual serves as an essential guide for operators and technicians, detailing full model number decoding, wiring instructions, and critical safety precautions. It covers setup details, display interpretation (PV/SV), troubleshooting disconnected signals, and ensures proper installation practices to maintain operational integrity in industrial control systems.

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Instruction manual Temperature Controller KT4

No.KT41E9 2006.08

To prevent accidents arising from the misuse of this controller, please ensure the operator receives this manual. SAFETY PRECAUTIONS Be sure to read these precautions before using our products. The safety precautions are classified into categories: “Warning” and “Caution”. Warning : Procedures which may lead to dangerous conditions and cause death or serious injury, if not carried out properly. Caution : Procedures which may lead to dang erous conditions and cause superficial to medium injury or physical damage or may degrade or damage the product, if not carried out properly.

Warning

• When using this controller on occasions which serious injury would be expected to occur or when damage is likely to expand or proliferate, make sure to take safety measures such as installing double safety structures. • Do not use this controller in an environment with flammable gases, or it may cause explosion.

Caution

• Fasten the electric wire with the t erminal screws securely. Imperfect connection m ay cause a bnormal heating or fumes. • Use this controller according to the rating and environmental conditions. Otherwise a bnormal heating or fumes may occur. • Do not touch the terminals while t he power is supplied to the controller, as this may cause electric shock. • Do not disassemble or modify the controller, as this may cause electric shock or fumes.

Caution • 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 fire. • Be sure to follow the warnings, cautions and notices. Not doing so could cause serious injury or accidents. • The contents of this instruction manual are subject to change without notice. • This instrument is designed to be installed in a control panel. If not, measures must be taken to ensure that the operator cannot touch power terminals or other high voltage sections. • Be sure to turn the power supplied to the instrument OFF before cleaning this instrument. • Use a soft, dry cloth when cleaning the instrument. (Alcohol based substances may cause tarnishing or defacement of the unit) • As the display section is vulnerable, do not strike or scratch it with a hard object. • Any unauthorized transfer or copying of this document, in part or in whole, is prohibited. • Matsushita Electric Works, Ltd. is not liable for any damage or secondary damage(s) incurred as a result of using this product, including any indirect damage. • To pull out the inner assembly, release the hooks at the top and bottom of the instrument with thin, hard tweezers. (If the hooks are released too far, they may break, or IP 66 function could deteriorate.) Do not pull out the inner assembly except when repairing the instrument.)

1. Model number 1.1 Explanation of model number A K T 4 1

(1) (2) (3) (4) (5) (6) (7) (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 key operation) (3) Control output (OUT1) ------------ 1: Relay contact, 2: Non-contact voltage, 3: DC current (4) Alarm output ------------------------- 1: A1 output, 2: A1 output + A2 output

(The alarm type and Energized /Deenergized can be selected by key operation) (When A2 output is applied, Heating/Cooling control cannot be added)

CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: [email protected]

Page Summary Contents For Panasonic KT4 Series Temperature Controller User's Manual

Page 1 Instruction manual Temperature Controller KT4 No.KT41E9 2006.08 To prevent accidents arising from the misuse of this controller, please ensure the operator receives this manual. SAFETY PRECAUTIONS Be ...
Page 2 (5) Heating/Cooling control (OUT2)-- 0: Not available, 4: Non-contact relay output (6) Heater burnout alarm -------------- 0: Not available, 1: Available (5A), 2: Available (10A), 3: Available (20A), ...
Page 3 3.2 External dimensions (Unit: mm) Screw type mounting bracket Gasket A Terminal cover (*) Terminal cover (AKT4801) (Fig. 3.2-1) 3.3 Panel cutout (Unit: mm) Lateral close mounting n x 48-3+0.5 n: Numb...
Page 4 • OUT1 : Control output 1 (Heating output) • OUT2 : Control output 2 (Cooling output) • RELAY : Relay contact output • V/A : DC voltage output/DC current output • S : Non-contact relay output • A1 : A...
Page 5 5. Setup Wire the power terminals only. After the power is turned on, the sensor input character and temperature unit are indicated on the PV display and the input range high limit value is indicated ...
Page 6 ARW setting 50% • Sets ARW (anti-reset windup). • Available only when PID is the control action. • 0 to 100% OUT1 proportional cycle setting Relay contact output: 30 seconds • Sets proportional cycle ...
Page 7 SV high limit setting 1370 • Sets the SV high limit. • SV low limit to input range high limit value. For DC input, SV low limit to scaling high limit value (The placement of the decimal point follows ...
Page 8 Scaling low limit setting –1999 • Sets scaling low limit value. • Available only for DC input type • Input range low limit value to scaling high limit value (The placement of the decimal point follows...
Page 9 A2 type selection No alarm action • Selects an A2 type. • Available only when A2 (option) is added • Action selection and default value are the same as those of A1 type selection. A1 action Energized/...
Page 10 Energized/Deenergized When [Alarm action Energized] is selected, the alarm output (between terminals 3-4, or 3-5) is conducted (ON) while the alarm output indicator is lit. The alarm output is not con...
Page 11 7. Operation flowchart Alarm 1 (A1) setting procedure [Numbers (1) to (5) are indicated on the flowchart.] Outline of operation procedure (1) [A1 type]: Select an Alarm 1 type. Operation before runnin...
Page 12 8. Action explanation 8.1 OUT1 action Heating (Reverse) action Cooling (Direct) action Proportional band Proportional band ON ON Control action OFF OFF SV setting SV setting Relay contact output Cycle...
Page 13 Press the and keys for approx. 3 seconds. Input type (character indication) and range Alarm type K –200 to 1370 K –320 to 2500 : High limit alarm: The alarm action is deviation setting from the SV. Th...
Page 14 8.4 A1 and A2 action High limit alarm High/Low limits alarm Low limit alarm A1 hysteresis A1 hysteresis A1 hysteresis ON ON ON Alarm action OFF OFF OFF + A1 set point A1 set point A1 set point SV + A1...
Page 15 8.6 Heating/Cooling control action (when setting dead band) Heating P-band Dead band (Cooling P-band) ON ON Heating (Cooling Control action action action) OFF OFF SV setting Relay contact output (OUT1...
Page 16 (1) In the case of a large difference between the SV and processing temperature (PV) as the temperature is rising When AT bias is set to 20 , the AT process will fluctuate at the temperature 20 lower ...
Page 17 : 0 to 5V DC, 1 to 5V DC, 0 to 10V DC Input impedance (100k or more) Allowable input voltage (15V or less) Allowable signal source resistance (100 or less) Control output (OUT1) Relay contact : 1a, Co...
Page 18 Thermocouple and RTD input Input Input range Indication range Control range –199.9 to 400.0 –199.9 to 450.0 –205.0 to 450.0 K,T –199.9 to 750.0 –199.9 to 850.0 –209.0 to 850.0 –199.9 to 850.0 –199.9 t...
Page 19 Heating/Cooling control (OUT2) • OUT2 side Proportional band: 0.0 to 10.0 times OUT1 proportional band (ON/OFF action when set to 0.0) Proportional cycle: 1 to 120 seconds • Overlap band/Dead band set...
Page 20 ] is flashing on the PV • Check whether the polarity of thermocouple or compensating lead display. wire is correct. • Check whether codes (A, B, B) of RTD agree with the instrument input terminals. En...

Manual Details

Brand Panasonic
Pages 20
File Size 614.30 KB
Published June 17, 2026
5 views

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Frequently Asked Questions

What supply voltages does the KT4 support?

It supports 100 to 240V AC or 24V AC/DC supply voltages.

How should I clean the temperature controller?

Turn power off first, then use a soft, dry cloth to clean it.

Why is the PV display flashing []?

Check thermocouple polarity or RTD codes are wired correctly.

Can I use this controller in flammable gas environments?

No, using it in such environments may cause an explosion.