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Instruction manual Temperature Controller KT4

No.KT41E10 2007.06

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 dangerous 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 terminal screws securely. Imperfect connection may cause abnormal

heating or fumes.

• Use this controller according to the rating and environmental conditions. Otherwise abnormal heating or

fumes may occur.

• Do not touch the terminals while the 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) (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)

Summary of content (20 pages)

PAGE 1
Instruction manual Temperature Controller KT4 No.KT41E10 2007.06 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.
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(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), 4: Available (50A) (Heater burnout alarm is not available for the DC current output) (7) Serial communication ------------- 1: Available (The number is indicated only when the serial communication is applied.) 1.2 How to read the rated label The rated label is attached to the case.
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.2 External dimensions (Unit: mm) Gasket A Screw type mounting bracket 48 44.5 48 (*) 59.7 Terminal cover 11.5 48 95 101 (*) (*) Terminal cover (AKT4801) (Fig. 3.2-1) 45 +0.5 0 75 45 +0.5 0 3.3 Panel cutout (Unit: mm) n x 48-3 +0.5 0 Lateral close mounting n: Number of units mounted Caution: If lateral close mounting is used for the controller, IP66 specification may be compromised, and all warranties will be invalidated. (Fig. 3.3-1) 45 +0.5 0 3.
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• 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 : Alarm 1 output • EVT : Event output (A2 output, Heater burnout alarm output) • CT : CT input • TC : Thermocouple • RTD : Resistance temperature detector • DC : DC current, DC voltage • RS-485: Serial communication (Fig.
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. 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 on the SV display for approximately 3 seconds. (Table 5-1) (If any other value is set during the scaling high limit setting, the set value is indicated on the SV display.) During this time, all outputs and the LED indicators are in OFF status.
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. and measured current value are indicated alternately. 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 for OUT1. Non-contact voltage output: 3 seconds • Not available for ON/OFF action or DC current output type.
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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 the selection) SV low limit setting –200 • Sets the SV low limit. • Input range low limit value to SV high limit. For DC input, scaling low limit value to SV high limit (The placement of the decimal point follows the selection) Sensor correction setting 0.0 • Sets the correction value for the sensor. • –100.
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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 the selection) Decimal point place selection No decimal point • Selects decimal point place. • Available only for DC input • No decimal point: 1 digit after decimal point: 3 digits after decimal point: 2 digits after decimal point: PV filter time constant setting 0.0 seconds • Sets PV filter time constant.
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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/Deenergized selection Energized • Selects Energized/Deenergized status for A1. • Not available if No alarm action is selected during A1 type selection • Energized: Deenergized: A2 action Energized/Deenergized selection Energized • Selects Energized/Deenergized status for A2.
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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 conducted (OFF) while the alarm output indicator is not lit. When [Alarm action Deenergized] is selected, the alarm output (between terminals 3-4, or 3-5) is not conducted (OFF) while the alarm output indicator is lit. The alarm output is conducted (ON) while the alarm output indicator is not lit.
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7. Action explanation 7.
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7.
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7.6 Heating/Cooling control action (when setting dead band) Heating P-band Dead band (Cooling P-band) ON ON Heating action Control action (Cooling action) OFF OFF SV setting Relay contact output (OUT1) 6 6 6 7 7 7 Cycle action is performed according to deviation. Non-contact voltage output (OUT1) + 6 + 6 12V DC + 6 12/0V DC - 7 0V DC - 7 - 7 Cycle action is performed according to deviation.
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8. Operation flowchart Alarm 1 (A1) setting procedure [Numbers (1) to (5) are indicated on the flowchart.] (1) [A1 type]: Select an Alarm 1 type. [If an alarm type except for is selected, items (2) to (5) are indicated and they can be set if necessary.] (2) [A1 action Energized/Deenergized]: Select Alarm 1 contact ) or OFF (Deenergized: ). output ON (Energized: (3) [A1 hysteresis]: Set A1 hysteresis. (4) [A1 action delayed timer]: Set A1 action delayed time.
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Press and keys for approx. seconds. Inputthe type (character indication) and3 range K –320 to 2500 : K –200 to 1370 : –199.9 to 750.0 : –199.9 to 400.0 : J –200 to 1000 : J –320 to 1800 : R 0 to 3200 : R 0 to 1760 : S 0 to 3200 : S 0 to 1760 : B 0 to 3300 : B 0 to 1820 : : E –320 to 1500 : E –200 to 800 T –199.9 to 750.0 : T –199.9 to 400.0 : N –320 to 2300 : N –200 to 1300 : PL0 to 1390 : PL0 to 2500 : C(W/Re5-26) 0 to 2315 : C(W/Re5-26) 0 to 4200 : Pt100 –199.9 to 850.0 : Pt100 –199.9 to 999.
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9. PID auto-tuning of this controller 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. One of 3 types of fluctuation below is automatically selected. 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.
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DC voltage : 0 to 1V DC Input impedance (1M or more) Allowable input voltage (5V or less) Allowable signal source resistance (2k or less) : 0 to 5V DC, 1 to 5V DC, 0 to 10V DC Input impedance (100k Allowable input voltage (15V or less) Allowable signal source resistance (100 or less) or more) Control output (OUT1) Relay contact : 1a, Control capacity A1 output 3A 250V AC (resistive load) 1A 250V AC (inductive load cosø=0.
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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 to 900.0 –210.0 to 900.0 –200 to 850 –210 to 900 –210 to 900 Pt100 –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 JPt100 –199.9 to 900.0 –199.9 to 999.9 –211.0 to 999.
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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 setting range Thermocouple, RTD inputs: –100.0 to 100.0 ( ) DC current, DC voltage inputs: –1000 to 1000 (The placement of the decimal point follows the selection) • OUT2 output ON/OFF action hysteresis setting Thermocouple, RTD inputs: 0.1 to 100.
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• Check whether the polarity of thermocouple or compensating lead wire is correct. • Check whether codes (A, B, B) of RTD agree with the instrument input terminals. Ensure that they are wired properly. The PV display keeps indicating • 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. the value which was set during How to check whether the input signal wire is disconnected scaling low limit value.