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Instruction manual
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.
• 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.
• 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 according to the specifications described in this manual.
If it is not used according to the specifications, it may malfunction or cause fire.
• Be sure to follow the warnings, cautions and notice. If not, it 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 tarnish or deface 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.
1. Model number
1.1 Explanation of model number
A K T 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
(3) Control output (OUT) ---- 1: Relay contact, 2: Non-contact voltage (Voltage output for SSR drive),
(4) Alarm output --------------- 1: Alarm output (1 point)
(5) Heater burnout alarm ---- 0: Not available, 1: Available (5A), 2: Available (10A), 3: Available (20A),
(6) Serial communication --- 1: Applied (The number is indicated only when Serial communication is added.)
Temperature Controller
1
1 0
(1) (2) (3) (4)
(5) (6)
selected by keypad operation. For DC current input, 50
(AKT4810, sold separately) must be connected between input terminals.)
3: DC current
(The alarm type and Energized /Deenergized can be selected
by keypad operation)
4: Available (50A)
(Heater burnout alarm is not available for the DC current output)
Warning
Caution
1
KT7
No. KT71E7 2013.05
shunt resistor
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Table of Contents
Related Manuals for Panasonic KT7
Summary of Contents for Panasonic KT7
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Page 1: Model Number
Instruction manual Temperature Controller No. KT71E7 2013.05 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. -
Page 2: Name And Functions Of The Sections
1.2 How to read the rated label The rated label is attached to the case. When Heater burnout alarm is added, CT rated current is written in the bracket ( ). (e.g.) AKT71111001 Supply voltage: 100 to 240V AC Multi-input Relay contact output Alarm output (1 point) Heater burnout alarm is not added... - Page 3 When DIN rail is mounted vertically, be sure to use commercially available fastening plates at both ends of KT7 series. Mount the KT7 series to the DIN rail so that the KT7 series cannot move. However, if the DIN rail is mounted horizontally in a position susceptible to vibration or shock, the fastening plates must be used as well.
- Page 4 (Fig. 4-1) Caution • Do not leave bits of wire in the KT7 series when wiring, because they could cause a fire or malfunction. • Insert the connecting cable into the designated connector securely. Otherwise malfunction may occur due to imperfect contact.
- Page 5 5. Setup Wire the power terminals only. After the power is turned on, the sensor input characters and temperature unit are indicated on the PV display and the input range high limit value is indicated on the SV display for approx.
- Page 6 OUT proportional cycle setting Relay contact output: 30sec • Sets the proportional cycle value for OUT. Non-contact voltage output: 3sec • Not available for ON/OFF action or DC current output type With the relay contact type, if the proportional cycle time is decreased, the frequency of the relay action increases and the life of the relay contact is shortened.
- Page 7 5.3 Auxiliary function setting mode 1 Character Default value Name, Description, Setting range (PV display) (SV display) Set value lock selection Unlock • Locks the set value to prevent setting errors. The setting item to be locked depends on the selection. •...
- Page 8 JPt100 –199.9 to 500.0 : JPt100 –199.9 to 900.0 : Pt100 –200 to 850 Pt100 –300 to 1500 : JPt100 –200 to 500 JPt100 –300 to 900 4 to 20mA –1999 to 9999: 0 to 20mA –1999 to 9999: 0 to 1V –1999 to 9999: 0 to 5V –1999 to 9999:...
- Page 9 Alarm action delayed timer setting 0 seconds • Sets the alarm action delayed time. When the setting time has passed after the input enters alarm output range, the alarm is activated. • Not available if No alarm action is selected during the Alarm type selection. •...
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Page 10: Converter Function
After mounting and wiring in the control panel (DIN rail) are completed, operate the unit following the procedures below. (1) Turn the power supply to the KT7 Series ON. For approx. 3sec after power is turned on, the character of the sensor type and temperature unit are indicated on the PV display, and the input range high limit value is indicated on the SV display. -
Page 11: Operation Flowchart
8. Operation flowchart Alarm setting procedure (Numbers (1) to (6) are indicated on the flowchart.) Outline of operation procedure (1) [Alarm type]: Select an alarm type (If an alarm type except for is selected, items (2) to (6) Operation before running are indicated and they can be set if necessary. -
Page 12: Action Explanation
9. Action explanation 9.1 OUT action Heating (Reverse) action Cooling (Direct) action Proportional band Proportional band Control action SV setting SV setting Relay contact output Cycle action is performed according to deviation Cycle action is performed according to deviation Non-contact 12V DC 0V DC 0/12V DC... - Page 13 Alarm type Input type (character indication) and range –200 to 1370 : –320 to 2500 High limit alarm: The alarm action is deviation setting from the SV. The alarm is activated –199.9 to 400.0 : –199.9 to 750.0 : if the input value reaches the high limit set value. Character indication: –200 to 1000 –320 to 1800 Low limit alarm: The alarm action is...
- Page 14 9.3 EVT (Alarm) action High limit alarm Low limit alarm High/Low limits alarm A1 hysteresis A1 hysteresis A1 hysteresis Alarm action A1 set point + A1 set point A1 set point A1 set point + A1 set point A1 set point setting setting setting...
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Page 15: Pid Auto-Tuning Of This Controller
10. PID auto-tuning of this controller In order to decide each value of P, I, D and ARW automatically, the auto-tuning process should be made to fluctuate to obtain an optimal value. Sometimes the auto-tuning process will not fluctuate if auto-tuning is performed at or near room temperature. - Page 16 Input Thermocouple : K, J, R, S, B, E, T, N, PL- , C (W/Re5-26) External resistance; 100 or less However, for thermocouple B, external resistance, 40 or less : 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 50...
- Page 17 Alarm Energized/Deenergized: Alarm (EVT) output Energized/Deenergized can be selected. Alarm Energized Alarm Deenergized Red (EVT) LED Lights Lights EVT output Alarm HOLD function: Once the alarm is activated, alarm output is held until the power is turned off. • Loop break alarm output [Loop break alarm, Alarm and Heater burnout alarm (option) utilize common output terminals.] Detects heater burnout, sensor burnout and actuator trouble.
- Page 18 Accessories included: Instruction manual 1 copy When Heater burnout alarm option is added: Wire harness 3m, 1 length [Wire type: Twisted; Terminations: Connector (KT7 side)/Cut end (CT side)] When Heater burnout alarm option is added: For rating 5A, 10A, 20A...
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Page 19: Troubleshooting
Heater burnout alarm (option), Loop break alarm and Alarm utilize common output terminals. This option cannot be applied to DC current output type. Rating : 5A, 10A, 20A, 50A (Must be specified) Setting range : 5A, 0.0 to 5.0A (Off when set to 0.0) 10A, 0.0 to 10.0A (Off when set to 0.0) 20A, 0.0 to 20.0A (Off when set to 0.0) 50A, 0.0 to 50.0A (Off when set to 0.0) - Page 20 Phone: +81-568-33-7861 FAX: +81-568-33-8591 About our sale network, please visit our website. PRINTED IN JAPAN © Panasonic Industrial Devices SUNX Co., Ltd. 2012 Pursuant to the directive 2004/108/EC, article 9(2) Panasonic Electric Works Europe AG Rudolf-Diesel-Ring 2 83607 Holzkirchen, Germany...