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Panasonic Industry / Automation Controls

KT7 Temperature Controllers (Discontinued Products)

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  • Discontinued Products

  • Number System

  • Rating/ Performance

  • Dimensions

  • Wiring/ Connection

  • Cautions For Use

Ⅾiscontinued

Last time buy (JST)

September 29, 2023

We are sorry, the products have been discontinued. Please refer to the details of the discontinued products and the recommended substitutes list below.

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Discontinued Products

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Number System

fig_KT7

Notes:

1) CT1 or CT2 for current transformer is provided as an accessory when heater burnout alarm function is added.
2) When adding alarm output 1 and heater burnout alarm at the same time, it'll be common output.

Model No. search method 

Example: When the additional function (heater burnout alarm: 10 A) is added on to the basic function
• Model No.: AKT7111102

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Rating/ Performance

Rating And Specifications

DisplaySpecifications
KT7
CE marking directive complianceLow Voltage Directive, EMC Directive, RoHS Directive
Size22.5×75mm 0.886×2.953 in
RatingSupply voltage (Must be specified)100 - 240V AC
24V AC/DC
Frequency50/60Hz
Power consumptionApprox. 6VA
Rated scaleInput typeInput range
ThermocoupleK-200 to 1370℃(-320 to 2,500 ℉)
-199.9 to 400.0℃(-199.9 to 750.0 ℉)
J-200 to 1,000℃(-320 to 1,800 ℉)
R0 to 1,760℃(0 to 3,200 ℉)
S0 to 1,760℃(0 to 3,200 ℉)
B0 to 1,820℃(0 to 3,300 ℉)
E-200 to 800℃(-320 to 1,500 ℉)
T-199.9 to 400.0℃(-199.9 to 7,50.0 ℉)
N-200 to 1,300℃(-320 to 2,300 ℉)
PL-II0 to 1,390℃(0 to 2,500 ℉)
C(W/Re5-26)0 to 2,315℃(0 to 4,200 ℉)
RTDPt100-200 to 850℃(-300 to 1,500 ℉)
-199.9 to 850.0℃(199.9 to 999.9 ℉)
JPt100-200 to 500℃(-300 to 900 ℉)
-199.9 to 500.0℃(-199.9 to 900.0 ℉)
DC Current4 to 20mA DC-1,999 to 9,999,
-199.9 to 999.9,
-19.99 to 99.99,
-1.999 to 9.999
0 to 20mA DC
DC Voltage0 to 1V DC
0 to 10V DC
1 to 5V DC
0 to 5V DC
 · Scaling and change to the decimal point position is possible for DC current input and DC voltage input.
· DC current input is supported with an externally connected 50Ω shunt resistor (sold separately).
Sensor inputThermocoupleK, J, R, S, B, E, T, N, PL-II, C (W/Re5-26)
External resistor: Max. 100Ω (max. 40Ω external resistor for B input)
RTDPt100, JPt100 3-conductor system (Allowable input conductor resistance for each conductor: max. 10Ωor less)
DC current0 to 20 mA DCInput impedance: 50Ω (Connect 50Ω shunt resistor between input terminals.)
Allowable input current: 50 mA or less (When 50Ω shunt resistor is used)
4 to 20 mA DC
DC voltage0 to 1 V DCInput impedance: min. 1 MΩ, Allowable input voltage: max 5 V, Allowable signal source resistance: max. 2 kΩ
0 to 5 V DCInput impedance: min. 100 kΩ, Allowable input voltage: max 15 V, Allowable signal source resistance: max. 100Ω
1 to 5 V DC
0 to 10 V DC
Control outputRelay contact(Must be
specified)		1a
3 A 250 V AC (at resistive load), 1 A 250 V AC (at inductive load cos ø = 0.4), Electrical life: 100,000 times
Non-contact DC voltage12+20 V DC, Max. load current: 40mA (Short-circuit protected)
DC current4 to 20mADC Load resistance: Max. 550Ω
Alarm output 1Open collector, Control capacity: 24V DC 0.1A(Max.)
Alarm output 2Not available
Control modePID action (with auto-tuning function), PI action, PD action (with manual reset function), P action (with manual reset function), ON / OFF action
Target temperature setting-
Program control function-
Indication accuracyThermocoupleWithin ± (0.2 % + 1 digit) of each input span or within ±2℃ (4℉) whichever is greater However, R or S input; within ±6℃ (12℉) in the range of 0 to 200℃ (32 to 392℉) B input, range of 0 to 300℃ (32 to 572℉): accuracy is not guaranteed K, J, E, T, and N input, less than 0℃ (32℉): within ± (0.4 % ±1 digit) of input span
RTDWithin ±(0.1 % + 1 digit) of each input span or ±1℃ (2℉) whichever is greater
DC current and DC voltageWithin ±0.2% ±1 digit of each input span
Sampling period250ms
Hysteresis (ON / OFF)Thermocouple and RTD: 0.1 to 100.0℃ (℉)
DC current and DC voltage: 1 to 1,000 (The decimal point place follows the selection)
Proportional bandFor sensor input range and DC current, DC voltage 0.0 to 110.0%
Integral time0 to 1,000 seconds
Derivative time0 to 300 seconds
Proportional cycle1 to 120 seconds
Allowable voltage fluctuationWhen 100-240 V AC: 85-264 V AC, When 24 V AC/DC: 20-28 V AC/DC
Insulated resistance500 V DC, Min. 10 MΩ
Breakdown voltageBetween input terminal and power terminal
Between output terminal and power terminal
1.5 kV AC for 1 min.
Malfunction vibration10 to 55 Hz (1 cycle/min.), double amplitude: 0.35 mm 0.014 in (10 min. on 3 axes)
Breakdown vibration10 to 55 Hz (1 cycle/min.), double amplitude: 0.75 mm 0.030 in (1 hour on 3 axes)
Malfunction shockX, Y and Z each direction for 5 times 98 m/s2
Breakdown shockSame as above, but 294 m/s2
Ambient temperature0 to +50℃ 32 to +122 ℉
Ambient humidity35 to 85%RH (No condensation)
Mass150 g approx.
WaterproofNone
Display character heightPV: 7.4 mm 0.291in
SV: 7.4 mm 0.291in
(PV / SV switching display)
Option
functions		Heating /
Cooling
control		Relay contactNone
Non-contact
voltage		Open collector, Control capacity: 24V DC 0.1A(Max.)
Heater burnout alarm
output		Open collector, Control capacity: 24V DC 0.1A(Max.)
Communication functionPlease refer below to “Communication Function Overview”.
AccessoriesMounting frame / Mounting bracket-
Terminal cover-
Rubber gasket-

Communication Function Overview

ItemSpecification
Communication methodHalf-duplex
Communication speedSelect 2,400, 4,800, 9,600, or 19,200 bps using key operation.
Synchronization typeAsynchronous
ProtocolModbus
CodingASCII
Error correctingParity check and check sum
Error detectionParity check, check sum
Data structureStart bit: 1 Data bit: 7 Parity: Even parity Stop bit: 1
InterfaceEIA RS-485 compliant
No. of nodes31
Maximum cable length1,000 m 3,280.840 ft(cable resistance must be within 50Ω

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Dimensions

  • Unit: mm in

KT7

Note) The communications terminal is the modular jack on the bottom side of the controller.Tolerance: ±1±0.039

AKT4811

Shunt Resistor

AKT4811

CT1

Current transformer (CT) (for 5, 10, and 20A)

CT2

Current transformer (CT) (for 50 A)

Note:

Current transformer CT1 or CT2 is included (only with KT7 and KT4H)
when heater burnout alarm function is added.

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Wiring/ Connection

External Connection Diagram

POWER SUPPLY : Power supply

OUT : Control output

RELAY : Relay contact output

V/A : DC voltage output / DC current output

EVT : Alarm output [Outputs when alarm, loop fault alarm or heater burnout alarm (optional) goes ON.]

TC : Thermocouple

RTD : Resistance temperature detector

DC : DC current or DC voltage

RS-485 : Serial communication

CT : CT input

Communication Function Connection Diagram (PLC Connection Diagram)

Notes: 1)Terminating resistors (Terminators)The KT series has a built-in pull-up resistor or pull-down resistor, which serves as the terminating resistor. For this reason, do not connect the terminating resistor on the communication line.2)Please use a RJ-11 6 polarized type modular connector.Please use a cable that is suitable for a modular connector.

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Wiring/ Connection

External Connection Diagram

POWER SUPPLY : Power supply OUT : Control output RELAY : Relay contact output V/A : DC voltage output / DC current output EVT : Alarm output [Outputs when alarm, loop fault alarm or heater burnout alarm (optional) goes ON.] TC : Thermocouple RTD : Resistance temperature detector DC : DC current or DC voltage RS-485 : Serial communication CT : CT input

Communication Function Connection Diagram (PLC Connection Diagram)

Notes: 1)Terminating resistors (Terminators)The KT series has a built-in pull-up resistor or pull-down resistor, which serves as the terminating resistor. For this reason, do not connect the terminating resistor on the communication line.2)Please use a RJ-11 6 polarized type modular connector.Please use a cable that is suitable for a modular connector.

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