NAiS KT7 Instruction Manual

Temperature controller

Hide thumbs

Table Of Contents

Table of Contents

Quick Links

Instruction manual

To prevent accidents arising from the misuse of this controller, please ensure the operator using it

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.

(If paint thinner is used, it might deform or tarnish 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.

•

Tatsuno Matsushita Electric

a result of using this product, including any indirect damages.

1. Model number

1.1 Explanation of model number

(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

(3) Control output (OUT) -------------- 1: Relay contact, 2: Non-contact voltage, 3: DC current

(4) Alarm output ------------------------- 1: Alarm output (1 point)

(5) Heater burnout alarm -------------

Available

Temperature Controller

Works, Ltd. is not liable for any damages or secondary damages incurred as

1 0

(1) (2) (3) (4)

(The alarm action and Energized /Deenergized can be selected

by key operation)

(20A), 4: Available (50A)

(Heater burnout alarm is not available for the DC current output)

Warning

Caution

(5)

can be selected by key operation)

0: Not available, 1: Available (5A), 2: Available (10A), 3:

KT7

Table of Contents

Need help?

Do you have a question about the KT7 and is the answer not in the manual?

Questions and answers

Summary of Contents for NAiS KT7

Page 1: Safety Precautions
Instruction manual Temperature Controller To prevent accidents arising from the misuse of this controller, please ensure the operator using it 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...
Page 2: Name And Functions Of The Sections
1.2 How to indicate the rated label The rated label is put on the case. When Heater burnout alarm is added, CT rated current is written in the bracket. (e.g.) A K T 7 1 1 1 1 0 0 Supply voltage: 100 to 240V AC Multi-input Relay contact output...
Page 3 contact with the controller...
Page 4 When DIN rail is mounted vertically, be sure to use commercially available fastening plates at the end 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 5: Wiring Connection
(1) Hook (1) of KT7 series on the upper side of the DIN rail. (Fig. 3.4-1) (2) Making the (1) part of the KT7 series as a support, fit the lower part of the KT7 series to the DIN rail.
Page 6 Terminal arrangement Lower part of main body • OUT : Control output • RELAY: Relay contact output • V/A : DC voltage output/ DC current output • EVT : Event output (Activates when Alarm, Loop break alarm or Heater burnout alarm [option] is ON) •...
Page 7 –200 to 850 –300 to 1500 –199.9 to 500.0 –199.9 to 900.0 JPt100 –200 to 500 –300 to 900 –1999 to 9999 4 to 20mA DC *1,*2 –1999 to 9999 0 to 20mA DC *1,*2 –1999 to 9999 0 to 1V DC –1999 to 9999 0 to 5V DC –1999 to 9999...
Page 8 5.1 Setup flow chart Output manipulated PV/SV display mode variable indication (Approx. 3s) (Approx. 3s) (Approx. 3s) [Sub setting mode] [Auxiliary function [Auxiliary function [Main setting mode] setting mode 1] setting mode 2] AT setting Setting value lock Input type selection selection [ OUT proportional band setting Sensor correction setting...
Page 9 Output status selection when input AT bias setting burnout [ û : Press the while the key is being pressed. û (Approx. 3s): Press the for 3 seconds while the key is being pressed. û (Approx. 3s): Press the for 3 seconds while the key is being pressed.
Page 10 5.2 Main setting mode Character Name, Description, Setting range Default value • Sets the value for controlled object. • Setting range: Scaling low limit value to scaling high limit value (For DC voltage and current inputs, the placement of the decimal point follows the selection) 5.3 Sub setting mode Character...
Page 11 Heater burnout alarm setting 0.0A • Sets the heater current value for Heater burnout alarm. • Setting the value to 0.0 disables the function. • Self-holding is not available for the alarm output. When alarm and Loop break alarm are applied together, the output is common.
Page 12 Sensor correction setting • Sets the sensor correction value for the sensor. • Thermocouple and RTD inputs: –100.0 to 100.0 DC voltage and current inputs: –1000 to 1000 (The placement of the decimal point follows the selection) 5.5 Auxiliary function setting mode 2 Character Name, Description, Setting range Default value...
Page 13 OUT low limit setting • Sets the control output low limit value. • Not available for ON/OFF action. • Setting range: –5% to OUT high limit value (Setting less than 0% is effective to DC current output type) OUT ON/OFF action hysteresis setting •...
Page 14 AT bias setting • Set bias value during PID auto-tuning. • Not available if DC voltage or current input is selected in the Input type selection and when action is not PID, either. • Setting range: 0 to 50 (0 to 100 ) or 0.0 to 50.0 (0.0 to 100.0 ) Controller/ Converter function selection...
Page 16: Converter Function
After mounting and wiring in the control panel (DIN rail) are finished, running is started in the following manner. (1) Turn the power supply to the KT7 Series ON. For approx. 3s after power is turned on, the character of the sensor type and temperature unit are indicated on the PV display, and the rated maximum value is indicated on the SV display.
Page 17: Action Explanation
8. Action explanation 8.1 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 18 8.3 EVT (Alarm) action High limit alarm Low limit alarm High/Low limits alarm A1 hysteresis A1 hysteresis A1 hysteresis Alarm action A1 setting + A1 setting A1 setting + A1 setting A1 setting A1 setting point setting point setting point point point setting...
Page 19: Pid Auto-Tuning Of This Controller
9. PID auto-tuning of this controller In order to set each P, I, D values and ARW automatically, this system gives a fluctuation to the controlled object to get an optimal value. One of 3 types of fluctuation below is automatically selected. (1) When the difference between the setting value and processing temperature is large as the temperature rises.
Page 20: Specifications
10. Specifications 10.1 Standard specification Model name : Temperature controller Mounting metho : DIN rail mounting method Setting metho : Input system using membrane sheet key Display PV display : Red LED 4 digits, character size 7.4 x 4mm (H x W) SV display : Green LED 4 digits, character size 7.4 x 4mm (H x W)
Page 21 Electrical life, 100,000 times • Non-contact voltage (for SSR drive): 12 V DC Max. 40mA (Short circuit protected) • DC current: 4 to 20mA DC, Load resistance: Max. 550 Output accuracy: Within 0.3% of output span Resolution : 12000...
Page 22 EVT output • Alarm output [Common output with Loop break alarm and Heater burnout alarm (option)] The alarm action point is set by deviation to the main setting (excluding Process alarm) and when input exceeds the range in deviation setting (excluding Process alarm) to the main setting, alarm (EVT) turns ON or OFF (High/Low limit range alarm).
Page 23 Material : Flame resistant resin (Case) Color : Ash gray (Case) Attached function [Setting value lock] [Sensor correction] [Power failure countermeasu The setting data is backed up in non-volatile IC memory. [Self diagno sis] The CPU is monitored by a watchdog timer, and when any abnormal status is found on the CPU, the controller is switched to warm-up status with all outputs turned off.
Page 24: Troubleshooting
–300 to 900 –312 to 1000 –312 to 1000 DC current and voltage inputs If the PV exceeds Indication range high limit value, the PV display blinks “ ”, and if the PV exceeds the Indication range low limit value, the PV display blinks “ ”.
Page 25 of this instrument? Connect the input signal wire securely to the terminal of the instrument. The indication on the PV display • Is designation of the sensor (input) correct? is abnormal or unstable. Set the correct sensor (input). • Is the polarity of the sensor input correct? Wire it correctly.
Page 26 Matsushita Electric Works, Ltd. Tatsuno Matsushita Electric Works, Ltd. Mail address : 300 Katayama, Tatsuno-cho, Tatsuno-city, Hyogo-pref, Japan Telephone : +81-791-63-0511 No.KT71E1 2002.03...