OMRON NX-TCAutomation Systems/ Machine Automation Controllers/NX-series I/O System

OMRON NX-TC Automation Systems

NX-TC NX-series Temperature Control Unit/Specifications
NX-TC NX-series Temperature Control Unit/Dimensions
NX-TC NX-series Temperature Control Unit/Catalog
NX-TC NX-series Temperature Control Unit/Lineup
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last update: January 5, 2018

The adjustments made by skilled workers are automated using AI. The innovation of production sites has begun.

Optimal and automatic temperature control without human intervention easily achieves both productivity and quality.

Previous temperature controllers have not only required a long time for start-up settings and variation adjustments, it has also been difficult to make the optimal adjustments without having experience and intuition. There were therefore some effects on quality.
In response to this situation, OMRON developed temperature controllers that includes "adaptive control technology."
This makes it possible to detect the changes in the status which will have an effect on quality and to automatically control the temperature so that the optimal state is always maintained, in the same way as a skilled worker would.
This frees production sites from troublesome start-up and adjustment work.

Causes of temperature variations on production lines

The answer was the industry's first inclusion* of "adaptive control technology"

With the "adaptive control" incorporated into this product, the optimal PID value is calculated automatically for both the time of the start-up and for during stable production. Furthermore, it is possible to monitor the temperature control status of the machine to automatically adjust the PID value to obtain the optimal temperature control in response to changes such as workpiece changes and machine changes.

* According to an investigation by OMRON of general-purpose temperature controllers for FA as of March 2017.

[New value that supports advances in packaging machines] The sealing temperature is measured accurately and controlled automatically for packaging machines that can maintain quality even at higher speeds.

Issues at production sites

· Faster packaging to respond to the demand for foodstuffs arising due to the population increases in emerging nations
· Increase in speed even when performing multiple-product production using a wide variety of packaging materials
· At higher speeds, the temperature difference between the sealing surface and the control temperature widens, so the failure rate rises…

E5[]D/NX-TC solve the issues

The temperature of the sealing surface is stably controlled automatically with measurement of the sealing surface temperature and algorithms to suppress variations.

Even if the speed of the packaging process is increased, the difference between the sealing temperature and the control temperature is minimized to perform stable automatic control, so it is possible to realize faster production while maintaining the product quality.
This also contributes to the use of thinner packaging materials and to high precision control.

Even with the production of multiple products that require changes to the settings, automatic control reduces the work

Even in the production of multiple products, which hinders faster speeds because a change of packaging materials can mean that time is required to change the settings, the use of automatic control that has a small error in the sealing temperature enables a speedy response at production sites.

Control performance that achieves new value

The temperature error is minimized with a temperature sensor for packaging machines* and an algorithm for packaging machines (automatic filter adjustment function)

*Sold separately

"Temperature sensors for packaging machines" to measure the temperature of the sealing surface

The temperature of the heating bar surface is measured accurately and there is no effect from factors causing temperature variations, such as the speed of the packaging machine and changes to the packaging materials.

"Automatic filter adjustment function" to suppress the instability in surface temperature measurements

By using the temperature sensor for packaging machines and the automatic filter adjustment function, it becomes possible to control the quality with the sealing temperature while also suppressing variation in the temperature with just a temperature controller, without relying on adjustments by workers.

[New value that supports advances in molding machines] Stable control of the temperature changes arising from faster speeds is performed automatically to realize molding machines that can maximize production capacity.

Issues at production sites

· Increased productivity to respond to demand expansion related to infrastructure as a result of the economic development of the emerging nations and the transfer of production bases overseas.
· At higher speeds, adjustments by the workers become necessary to respond to temperature variations arising due to factors such as the materials compounding and cooling water…
· It is difficult to achieve high speed production while also maintaining the quality…

E5[]D/NX-TC solve the issues

Temperature variations due to speed changes and changes in the status of machines are suppressed without adjustments by the workers

Stable control is achieved automatically by detecting the temperature variations on the heat generating parts of the material that occur when the speed of the extrusion molding machine is increased and by detecting the temperature variations due to variation in the cooling water. The work required for setting are also greatly reduced.

Also saves energy on the machine

The stable control reduces the wasteful use of energy on the heater by up to 40% compared with conventional machines.
* Data measured by OMRON on a water-cooled twin screw extrusion molding machine.

Control performance that achieves new value

Temperature variations are minimized with an algorithm for molding machines (water-cooling output adjustment function)

On a water-cooled extrusion molding machine, increased speed leads to temperature variations due to various causes and it was previously necessary for the workers to repeatedly make valve adjustments to stabilize the quality.
With the E5[]D/NX-TC, the water-cooling output adjustment function suppresses the temperature variations to a minimum and raises the production capacity with the quality maintained.

"Water-cooling output adjustment function" to simultaneously suppress the causes of temperature variations and maintain stable performance

Push-In Plus Technology for Easy Wiring

E5[]D-B/NX-TC

Just Insert Wires: No Tools Required
Now you can use Push-In Plus technology to reduce the time and work involved in wiring.

Greatly Reduce Wiring Work

*Information for Push-In Plus and screw terminal blocks is based on OMRON's actual measurement value data.

Easy to Insert

OMRON’s Push-In Plus technology are as easy as inserting to an earphone jack. They help reduce the work load and improve wiring quality.

Our shared Value Design for Panel (herein after referred to as "Value Design") concept for the specifications of products used in control panels will create new value to our customer’s control panels.

last update: January 5, 2018

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If you have just landed here, this product OMRON NX-TC Automation Systems,Automation Systems is offered online by Tianin FLD Technical Co.,Ltd. This is an online store providing Automation Systems at wholesale prices for consumers. You can call us or send enquiry, we would give you the prices, packing,deliverty and more detailed information on the NX-TC We cooperate with DHL,TNT,FEDEX,UPS,EMS,etc.They guarantee to meet your needs in terms of time and money,even if you need your OMRON NX-TCAutomation Systems tomorrow morning (aka overnight or next day air) on your desk, 2, 3 days or more.Note to international customers, YES, we ship worldwide.

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OMRON NX-TC specification
NX-TC NX-series Temperature Control Unit/Specifications
last update: January 7, 2019
General Specifications

Item Specification
Enclosure Mounted in a panel
Grounding method Ground to 100 Ω or less
Operating
environment Ambient operating temperature 0 to 55°C
Ambient operating humidity 10 to 95% RH (with no condensation or icing)
Atmosphere Must be free from corrosive gases.
Ambient storage temperature -25 to 70°C (with no condensation or icing)
Altitude 2,000 m max.
Pollution degree Pollution degree 2 or less: Conforms to JIS B 3502 and IEC 61131-2.
Noise immunity Conforms to IEC 61000-4-4, 2 kV (power supply line)
Overvoltage category Category II: Conforms to JIS B 3502 and IEC 61131-2.
EMC immunity level Zone B
Vibration resistance Conforms to IEC 60068-2-6.
5 to 8.4 Hz with amplitude of 3.5 mm,
8.4 to 150 Hz, acceleration of 9.8 m/s²
100 min each in X, Y, and Z directions (10 sweeps of 10 min each =
100 min total)
Shock resistance Conforms to IEC 60068-2-27. 147 m/s², 3 times each in X, Y, and Z
directions
Insulation resistance 20 MΩ min. between isolated circuits (at 100 VDC)
Dielectric strength 510 VAC between isolated circuits for 1 minute at a leakage current
of 5 mA max.
Applicable standards * cULus: Listed (UL 61010-2-201), ANSI/ISA 12.12.01,
EU: EN 61131-2, RCM, KC: KC Registration, EAC, NK, LR, BV

* Ask your OMRON representative for the most recent applicable standards for each model.

List of Functions

Function name Description Applicable units
Free-Run Refreshing With this I/O refreshing method, the refresh cycle of the NX
bus and the I/O refresh cycles of the NX Units are
asynchronous. All models
Selecting Channel To Use This function disables control processing, error detection, and
output for unused channels. The conversion time for its own
Unit will not be shortened even if errors are disabled. All models
Input
Functions Input Type Setting This function sets the input type of the sensor connected to
the temperature input. All models
Temperature Unit
Setting (°C/°F) This function sets the temperature units for measured values
to °C (Celsius) or °F (Fahrenheit). All models
Decimal Point Position
Setting This function sets the number of digits to be displayed after
the　decimal point for INT type measured values and set point
parameters. All models
Cold Junction
Compensation
Enable/Disable Setting This function enables or disables cold junction compensation
using the cold junction sensor that is mounted on the terminal
block when a thermocouple input is used. All models
Temperature Input
Correction This function corrects measured values. When there are
variations in the sensor or when there is a difference in
measured value from other measuring instruments. One-point
correction and two-point correction methods are provided. All models
Input Digital Filter This function sets the time constant applied to the first-order
lag operation filter so that the noise components mixed with
the measured value are eliminated. All models
Measuring the Ambient
Temperature Around
Terminals This function measures the temperature around the terminals
of the Temperature Control Unit. All models
Control
Processing ON/OFF control This control function uses a preset set point to turn off the
control output when the temperature reaches the set point
during control. All models
PID control PID control is a combination of proportional (P) control,
integral　(I) control, and differential (D) control. It is a control
function that feeds back the detected value to the set point
so that they conform to each other. All models
Heating/Cooling
Control This function controls both heating and cooling. Heating/cooling
control type
models
Run or Stop Controls This function starts and stops temperature control. All models
Direct/Reverse
Operation This function specifies direct or reverse operation. All models
Manual MV (Manual
Manipulated Variable) This function outputs the specified manipulated variable
during PID control. All models
MV at Error (error MV) This function outputs a fixed manipulated variable when a
Sensor Disconnected Error occurs. All models
MV Limit This function adds a limit to the manipulated variable
calculated by PID control and outputs it. All models
Load Rejection MV This function performs a preset output operation if the
Temperature Control Unit connected to the CPU Unit cannot
receive the output setting values from the CPU Unit due to
an NX bus error or CPU watchdog timer error. This function
performs a preset output operation if the Slave Terminal
cannot receive the output setting values due to a
communications error between the Temperature Control Unit
and the Communications Coupler Unit host or due to an error
on the NX bus. All models
MV Branch The manipulated variables calculated by the slope or offset
are output to the branch-destination channel based on the
manipulated variables of the branch-source channel. Standard control
type models
Load Short-circuit
Protection This function protects output circuits of the Temperature
Control Unit when an external device connected to the
control output is short-circuited. Models with
voltage output
(for driving SSR)
Tuning AT (Autotuning) This is a tuning method that derives the PID constant. This
function automatically calculates the PID constant by the limit
cycle method according to the characteristics of the control
target. All models
Automatic Filter
Adjustment This is a tuning method that automatically adjusts the input
digital filter. This function is primarily for packing machines. It
suppresses periodic temperature variations. Standard control
type models
Water-cooling Output
Adjustment This is a tuning method that automatically adjusts hunting.
This function is primarily for water-cooled extruders. It
suppresses temperature variations caused by the cooling
water output. Heating/cooling
control type
models
Adaptive Control This is a tuning method that can maintain high control
performance by following system changes. This function
maintains control performance even if temperature variation
factors such as environmental change and equipment
deterioration occur during a long-term equipment operation. Standard control
type models
Notifying the Update of
Tuning Parameters This function notifies that the Temperature Control Unit has
automatically updated the parameters by tuning. All models
Control
Output Control Period This function sets the period when the ON/OFF time ratio is
changed for voltage output (for driving SSR) in time-
proportional operation. Models with
voltage output
(for driving SSR)
Minimum Output
ON/OFF Band This function specifies the minimum ON/OFF bands for the
heating side control output or the cooling side control output.
This function can be used to prevent deterioration of
mechanical relays when mechanical relays are used in the
actuators connected to the output terminals. Models with
voltage output
(for driving SSR)
Output Signal Range
Setting This function sets the output signal range of the linear current
output. You can specify 4 to 20 mA or 0 to 20 mA. Models with
linear current
output
Limiting Simultaneous
Outputs This function limits the number of outputs that turn ON
simultaneously by shifting the control period of each output
and restricting the upper limit of the manipulated variable. You
can set a delay between outputs, which allows delays in
output device operation that can occur when outputs are
switched. Standard control
type models with
voltage output
(for driving SSR)
Error
Detection Sensor Disconnection
Detection This function detects disconnections in temperature sensors.
It also detects that the measured value of the temperature
sensor is outside the input indication range. All models
Heater Burnout
Detection This function detects heater burnouts. A heater burnout is
detected if the control output is ON and the heater current is
equal to or less than the heater burnout detection current. Models with CT
input
SSR Failure Detection This function detects SSR failures. An SSR failure is detected
if the control output is OFF and the leakage current is equal to
or greater than the SSR failure detection current. An SSR
failure is a failure that is caused by an SSR short-circuit. Models with CT
input
Temperature alarms Function for detecting a deviation or an error in the measured
value as an alarm. Alarm operation corresponding to the use
can be performed by selecting “Alarm type”. All models
LBA (Loop Burnout
Alarm) Function for detecting, as an alarm, the error location in the
control loop when there is no change in the measured value
while a control deviation equal to or more than the threshold
value exists between the set point and the measured value. All models

Individual Specifications
Temperature Control Unit (2-Channel Type) NX-TC2405

Unit name Temperature Control Unit
(2-Channel Type) Model NX-TC2405
Number of Channels 2 channels Control type Standard control
Number of points per
channel • Temperature input: 1 point
per channel (2 points per unit)
• CT Input: 1 point per channel
(2 points per unit)
• Control Output: 1 point per
channel (2 points per unit) External connection
terminal Screwless clamping terminal
block (16 terminals)
I/O refreshing method Free-Run Refreshing
Indicators TS indicator and output
indicators
CT
Input
section CT current
input range 0 to 0.125 A
Input
resistance Approx. 2.7 Ω
Connectable
CTs E54-CT1, E54-CT3,
E54-CT1L, and E54-CT3L
Maximum
heater current 50 A AC
Resolution 0.1 A
Overall
accuracy
(25°C) ±5% (full scale) ±1 digit
Influence of
temperature
(0 to 55°C) ±2% (full scale) ±1 digit
Conversion
time 50 ms/Unit
Control
Output
section Control output
type and
number of
control outputs
per channel Voltage output for driving
SSR, 1 point per channel
Internal I/O
common PNP
Control Period 0.1, 0.2, 0.5, 1 to 99s
Manipulated
variable -5 to +105%
Sensor
Input
section Temperature
sensor *1 • Thermocouple input: K, J, T,
E, L, U, N, R, S, B, C/W, PL II
• Platinum resistance
thermometer input: Pt100
(three-wire), JPt100 (three-
wire) Resolution --
Input
conversion
range ±20°C of the input range
*2 Rated Voltage 24 VDC
Absolute
maximum
rating ±130 mV Operating Load
Voltage Range 15 to 28.8 VDC
Input
impedance 20 kΩ min. Maximum load
current 21 mA/point, 42 mA/Unit
Resolution 0.1°C max. Maximum
Inrush Current 0.3 A/point max., 10 ms max.
Reference
accuracy *3 Allowable load
resistance --
Temperature
coefficient *3 Leakage
current 0.1 mA max.
Cold junction
compensation
error ±1.2°C *3 *4 Residual
voltage 1.5 V max.
Input
disconnection
detection
current Approx. 0.1 uA Load Short-
circuit
Protection Provided
Input
detection
current 0.25 mA Output range --
Effect of
conductor
resistance • Thermocouple input: 0.1°C/
Ω (100 Ω or less per
conductor)
• Platinum resistance
thermometer input: 0.06°C/
Ω (20 Ω or less per
conductor) Overall
accuracy
(25°C) --
Warm-up
period 30 minutes Influence of
temperature
(0 to 55°C) --
Conversion
time 50 ms/Unit
Dimensions 12 mm (W) ×100 mm (H) ×
71 mm (D) Isolation method • Between sensor inputs and
internal circuitry: Power =
Transformer, Signal = Digital
isolator
• Between inputs: Power =
Transformer, Signal = Digital
isolator
• No isolation between internal
circuits and CT inputs
• Between control output and
internal circuit: Photocoupler
• No isolation between control
outputs
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC) Dielectric strength 510 VAC between isolated
circuits for 1 minute with a
leakage current of 5 mA max.
I/O power supply
method Supplied from the NX bus. Current capacity of I/O
power supply terminals IOG: 0.1 A max. per terminal
NX Unit power
consumption • Connected to a CPU Unit
1.45 W max.
• Connected to
Communications Coupler
Unit 1.10 W max. Current consumption
from I/O power supply 20 mA max.
Weight 75 g max.
Circuit configuration
Installation orientation
and restrictions Mounting orientation:
• Connect to CPU unit
Front mounting orientation is possible
• Connect to communication coupler unit
Six orientations are possible

Limitation:
The cold junction compensation error is limited by the mounting orientation and the type or
power consumption of the adjacent unit. For details, refer to Cold Junction Compensation
Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection
diagram

*1. For the setting ranges and indication ranges of the sensors, refer to the Input types.
*2. + 20°C only for the following input type settings:
      1: JPt100
      3: JPt100
      10: T
      14: U
*3. For details, refer to the Reference Accuracy and Temperature Coefficient Table.
      For thermocouple inputs, reference accuracy and cold junction compensation error are guaranteed for a set of a
      Temperature Control Unit and a terminal block on which a cold junction sensor is mounted.
      Be sure to use the terminal block and the Temperature Control Unit with the same calibration control number
      together.
      A calibration control number is displayed both on the terminal block and the Unit.
      Make sure to return the terminal block to which a cold junction sensor is mounted and the Unit together.
*4. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.

Temperature Control Unit (2-Channel Type) NX-TC2406

Unit name Temperature Control Unit
(2-Channel Type) Model NX-TC2406
Number of Channels 2 channels Control type Standard control
Number of points per
channel • Temperature input: 1 point
per channel (2 points per unit)
• CT input: None
• Control Output: 1 point per
channel (2 points per unit) External connection
terminal Screwless clamping terminal
block (16 terminals)
I/O refreshing method Free-Run Refreshing
Indicators TS indicator and output
indicators
CT
Input
section CT current
input range --
Input
resistance --
Connectable
CTs --
Maximum
heater current --
Resolution --
Overall
accuracy
(25°C) --
Influence of
temperature
(0 to 55°C) --
Conversion
time --
Control
Output
section Control output
type and
number of
control outputs
per channel Voltage output for driving
SSR, 1 point per channel
Internal I/O
common PNP
Control Period 0.1, 0.2, 0.5, 1 to 99s
Manipulated
variable -5 to +105%
Sensor
Input
section Temperature
sensor *1 • Thermocouple input: K, J, T,
E, L, U, N, R, S, B, C/W, PL II
• Platinum resistance
thermometer input: Pt100
(three-wire), JPt100 (three-
wire) Resolution --
Input
conversion
range ±20°C of the input range
*2 Rated Voltage 24 VDC
Absolute
maximum
rating ±130 mV Operating Load
Voltage Range 15 to 28.8 VDC
Input
impedance 20 kΩ min. Maximum load
current 21 mA/point, 42 mA/Unit
Resolution 0.1°C max. Maximum
Inrush Current 0.3 A/point max., 10 ms max.
Reference
accuracy *3 Allowable load
resistance --
Temperature
coefficient *3 Leakage
current 0.1 mA max.
Cold junction
compensation
error ±1.2°C *3 *4 Residual
voltage 1.5 V max.
Input
disconnection
detection
current Approx. 0.1 uA Load Short-
circuit
Protection Provided
Input
detection
current 0.25 mA Output range --
Effect of
conductor
resistance • Thermocouple input: 0.1°C/
Ω (100 Ω or less per
conductor)
• Platinum resistance
thermometer input: 0.06°C/
Ω (20 Ω or less per
conductor) Overall
accuracy
(25°C) --
Warm-up
period 30 minutes Influence of
temperature
(0 to 55°C) --
Conversion
time 50 ms/Unit
Dimensions 12 mm (W) ×100 mm (H) ×
71 mm (D) Isolation method • Between sensor inputs and
internal circuitry: Power =
Transformer, Signal = Digital
isolator
• Between inputs: Power =
Transformer, Signal = Digital
isolator
• Between control output and
internal circuit: Photocoupler
• No isolation between control
outputs
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC) Dielectric strength 510 VAC between isolated
circuits for 1 minute with a
leakage current of 5 mA max.
I/O power supply
method Supplied from the NX bus. Current capacity of I/O
power supply terminals IOG: 0.1 A max. per terminal
NX Unit power
consumption • Connected to a CPU Unit
1.25 W max.
• Connected to
Communications Coupler
Unit 0.95 W max. Current consumption
from I/O power supply 20 mA max.
Weight 75 g max.
Circuit configuration
Installation orientation
and restrictions Mounting orientation:
• Connect to CPU unit
Front mounting orientation is possible
• Connect to communication coupler unit
Six orientations are possible

Limitation:
The cold junction compensation error is limited by the mounting orientation and the type or
power consumption of the adjacent unit. For details, refer to Cold Junction Compensation
Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection
diagram

*1. For the setting ranges and indication ranges of the sensors, refer to the Input types.
*2. + 20°C only for the following input type settings:
      1: JPt100
      3: JPt100
      10: T
      14: U
*3. For details, refer to the Reference Accuracy and Temperature Coefficient Table.
      For thermocouple inputs, reference accuracy and cold junction compensation error are guaranteed for a set of a
      Temperature Control Unit and a terminal block on which a cold junction sensor is mounted.
      Be sure to use the terminal block and the Temperature Control Unit with the same calibration control number
      together.
      A calibration control number is displayed both on the terminal block and the Unit.
      Make sure to return the terminal block to which a cold junction sensor is mounted and the Unit together.
*4. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.

Temperature Control Unit (2-Channel Type) NX-TC2407

Unit name Temperature Control Unit
(2-Channel Type) Model NX-TC2407
Number of Channels 2 channels Control type Heating and cooling control
Number of points per
channel • Temperature input: 1 point
per channel (2 points per unit)
• CT input: None
• Control Output: 2 point per
channel (4 points per unit) External connection
terminal Screwless clamping terminal
block (16 terminals)
I/O refreshing method Free-Run Refreshing
Indicators TS indicator and output
indicators
CT
Input
section CT current
input range --
Input
resistance --
Connectable
CTs --
Maximum
heater current --
Resolution --
Overall
accuracy
(25°C) --
Influence of
temperature
(0 to 55°C) --
Conversion
time --
Control
Output
section Control output
type and
number of
control outputs
per channel Voltage output for driving
SSR, 2 point per channel
Internal I/O
common PNP
Control Period 0.1, 0.2, 0.5, 1 to 99s
Manipulated
variable • Heating: 0 to +105%
• Cooling: 0 to +105%
Sensor
Input
section Temperature
sensor *1 Thermocouple input: K, J, T,
E, L, U, N, R, S, B, C/W, PL II
Platinum resistance
thermometer input: Pt100
(three-wire), JPt100 (three-
wire) Resolution --
Input
conversion
range ±20°C of the input range
*2 Rated Voltage 24 VDC
Absolute
maximum
rating ±130 mV Operating Load
Voltage Range 15 to 28.8 VDC
Input
impedance 20 kΩ min. Maximum load
current 21 mA/point, 84 mA/Unit
Resolution 0.1°C max. Maximum
Inrush Current 0.3 A/point max., 10 ms max.
Reference
accuracy *3 Allowable load
resistance --
Temperature
coefficient *3 Leakage
current 0.1 mA max.
Cold junction
compensation
error ±1.2°C *3 *4 Residual
voltage 1.5 V max.
Input
disconnection
detection
current Approx. 0.1 uA Load Short-
circuit
Protection Provided
Input
detection
current 0.25 mA Output range --
Effect of
conductor
resistance • Thermocouple input: 0.1°C/
Ω (100 Ω or less per
conductor)
• Platinum resistance
thermometer input: 0.06°C/
Ω (20 Ω or less per
conductor) Overall
accuracy
(25°C) --
Warm-up
period 30 minutes Influence of
temperature
(0 to 55°C) --
Conversion
time 50 ms/Unit
Dimensions 12 mm (W) ×100 mm (H) ×
71 mm (D) Isolation method • Between sensor inputs and
internal circuitry: Power =
Transformer, Signal = Digital
isolator
• Between inputs: Power =
Transformer, Signal = Digital
isolator
• Between control output and
internal circuit: Photocoupler
• No isolation between control
outputs
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC) Dielectric strength 510 VAC between isolated
circuits for 1 minute with a
leakage current of 5 mA max.
I/O power supply
method Supplied from the NX bus. Current capacity of I/O
power supply terminals IOG: 0.1 A max. per terminal
NX Unit power
consumption • Connected to a CPU Unit
1.30 W max.
• Connected to
Communications Coupler
Unit 1.00 W max. Current consumption
from I/O power supply 20 mA max.
Weight 75 g max.
Circuit configuration
Installation orientation
and restrictions Mounting orientation:
• Connect to CPU unit
Front mounting orientation is possible
• Connect to communication coupler unit
Six orientations are possible

Limitation:
The cold junction compensation error is limited by the mounting orientation and the type or
power consumption of the adjacent unit. For details, refer to Cold Junction Compensation
Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection
diagram

*1. For the setting ranges and indication ranges of the sensors, refer to the Input types.
*2. + 20°C only for the following input type settings:
      1: JPt100
      3: JPt100
      10: T
      14: U
*3. For details, refer to the Reference Accuracy and Temperature Coefficient Table.
      For thermocouple inputs, reference accuracy and cold junction compensation error are guaranteed for a set of a
      Temperature Control Unit and a terminal block on which a cold junction sensor is mounted.
      Be sure to use the terminal block and the Temperature Control Unit with the same calibration control number
      together.
      A calibration control number is displayed both on the terminal block and the Unit.
      Make sure to return the terminal block to which a cold junction sensor is mounted and the Unit together.
*4. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.

Temperature Control Unit (2-Channel Type) NX-TC2408

Unit name Temperature Control Unit
(2-Channel Type) Model NX-TC2408
Number of Channels 2 channels Control type Standard control
Number of points per
channel • Temperature input: 1 point
per channel (2 points per unit)
• CT input: None
• Control Output: 1 point per
channel (2 points per unit) External connection
terminal Screwless clamping terminal
block (16 terminals)
I/O refreshing method Free-Run Refreshing
Indicators TS indicator and output
indicators
CT
Input
section CT current
input range --
Input
resistance --
Connectable
CTs --
Maximum
heater current --
Resolution --
Overall
accuracy
(25°C) --
Influence of
temperature
(0 to 55°C) --
Conversion
time --
Control
Output
section Control output
type and
number of
control outputs
per channel Linear current output, one
output per channel
Internal I/O
common --
Control Period --
Manipulated
variable -5 to +105%
Sensor
Input
section Temperature
sensor *1 • Thermocouple input: K, J, T,
E, L, U, N, R, S, B, C/W, PL II
• Platinum resistance
thermometer input: Pt100
(three-wire), JPt100 (three-
wire) Resolution 1/10,000
Input
conversion
range ±20°C of the input range
*2 Rated Voltage 24 VDC
Absolute
maximum
rating ±130 mV Operating Load
Voltage Range 15 to 28.8 VDC
Input
impedance 20 kΩ min. Maximum load
current --
Resolution 0.1°C max. Maximum
Inrush Current --
Reference
accuracy *3 Allowable load
resistance 350 Ω or less, or greater than
350 Ω but no more than 600
Ω *4
Temperature
coefficient *3 Leakage
current --
Cold junction
compensation
error ±1.2°C *3 *5 Residual
voltage --
Input
disconnection
detection
current Approx. 0.1 uA Load Short-
circuit
Protection --
Input
detection
current 0.25 mA Output range 0 to 20 mA, 4 to 20 mA
Effect of
conductor
resistance • Thermocouple input: 0.1°C/
Ω (100 Ω or less per
conductor)
• Platinum resistance
thermometer input: 0.06°C/
Ω (20 Ω or less per
conductor) Overall
accuracy
(25°C) ±0.3% of full scale, but 1% of
full scale at 0 to 4 mA of 0 to
20 mA range
Warm-up
period 30 minutes Influence of
temperature
(0 to 55°C) ±0.3% (full scale)
Conversion
time 50 ms/Unit
Dimensions 12 mm (W) ×100 mm (H) ×
71 mm (D) Isolation method • Between sensor inputs and
internal circuitry: Power =
Transformer, Signal = Digital
isolator
• Between inputs: Power =
Transformer, Signal = Digital
isolator
• Between control output and
internal circuit: Photocoupler
• No isolation between control
outputs
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC) Dielectric strength 510 VAC between isolated
circuits for 1 minute with a
leakage current of 5 mA max.
I/O power supply
method Supplied from the NX bus. Current capacity of I/O
power supply terminals IOG: 0.1 A max. per terminal
NX Unit power
consumption • Connected to a CPU Unit
1.25 W max.
• Connected to
Communications Coupler
Unit 0.95 W max. Current consumption
from I/O power supply 20 mA max.
Weight 75 g max.
Circuit configuration
Installation orientation
and restrictions Mounting orientation:
• Connect to CPU unit
Front mounting orientation is possible
• Connect to communication coupler unit
Six orientations are possible

Limitation:
The cold junction compensation error is limited by the mounting orientation and the type or
power consumption of the adjacent unit. For details, refer to Cold Junction Compensation
Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection
diagram

*1. For the setting ranges and indication ranges of the sensors, refer to the Input types.
*2. + 20°C only for the following input type settings:
      1: JPt100
      3: JPt100
      10: T
      14: U
*3. For details, refer to the Reference Accuracy and Temperature Coefficient Table.
      For thermocouple inputs, reference accuracy and cold junction compensation error are guaranteed for a set of a
      Temperature Control Unit and a terminal block on which a cold junction sensor is mounted.
     Be sure to use the terminal block and the Temperature Control Unit with the same calibration control number
     together.
     A calibration control number is displayed both on the terminal block and the Unit.
     Make sure to return the terminal block to which a cold junction sensor is mounted and the Unit together.
*4. To use an allowable load resistance greater than 350 Ω but not exceeding 600 Ω, SHT1 and SHT2 must be shorted
      with a shorting cable.
     For details, refer to the NX-series Temperature Control Units User’s Manual (Cat. No. W523).
*5. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.

Temperature Control Unit (4-Channel Type) NX-TC3405

Unit name Temperature Control Unit
(4-Channel Type) Model NX-TC3405
Number of Channels 4 channels Control type Standard control
Number of points per
channel • Temperature input: 1 point
per channel (4 points per unit)
• CT Input: 1 point per channel
(4 points per unit)
• Control Output: 1 point per
channel (4 points per unit) External connection
terminal Screwless clamping terminal
block (16 terminals x 2)
I/O refreshing method Free-Run Refreshing
Indicators TS indicator and output
indicators
CT
Input
section CT current
input range 0 to 0.125 A
Input
resistance Approx. 2.7 Ω
Connectable
CTs E54-CT1, E54-CT3,
E54-CT1L, and E54-CT3L
Maximum
heater current 50 A AC
Resolution 0.1 A
Overall
accuracy
(25°C) ±5% (full scale) ±1 digit
Influence of
temperature
(0 to 55°C) ±2% (full scale) ±1 digit
Conversion
time 50 ms/Unit
Control
Output
section Control output
type and
number of
control outputs
per channel Voltage output for driving
SSR, 1 point per channel
Internal I/O
common PNP
Control Period 0.1, 0.2, 0.5, 1 to 99s
Manipulated
variable -5 to +105%
Sensor
Input
section Temperature
sensor *1 • Thermocouple input: K, J, T,
E, L, U, N, R, S, B, C/W, PL II
• Platinum resistance
thermometer input: Pt100
(three-wire), JPt100 (three-
wire) Resolution --
Input
conversion
range ±20°C of the input range
*2 Rated Voltage 24 VDC
Absolute
maximum
rating ±130 mV Operating Load
Voltage Range 15 to 28.8 VDC
Input
impedance 20 kΩ min. Maximum load
current 21 mA/point, 84 mA/Unit
Resolution 0.1°C max. Maximum
Inrush Current 0.3 A/point max., 10 ms max.
Reference
accuracy *3 Allowable load
resistance --
Temperature
coefficient *3 Leakage
current 0.1 mA max.
Cold junction
compensation
error ±1.2°C *3 *4 Residual
voltage 1.5 V max.
Input
disconnection
detection
current Approx. 0.1 uA Load Short-
circuit
Protection Provided
Input
detection
current 0.25 mA Output range --
Effect of
conductor
resistance • Thermocouple input: 0.1°C/
Ω (100 Ω or less per
conductor)
• Platinum resistance
thermometer input: 0.06°C/
Ω (20 Ω or less per
conductor) Overall
accuracy
(25°C) --
Warm-up
period 30 minutes Influence of
temperature
(0 to 55°C) --
Conversion
time 50 ms/Unit
Dimensions 24 mm (W) ×100 mm (H) ×
71 mm (D) Isolation method • Between sensor inputs and
internal circuitry: Power =
Transformer, Signal = Digital
isolator
• Between inputs: Power =
Transformer, Signal = Digital
isolator
• No isolation between internal
circuits and CT inputs
• Between control output and
internal circuit: Photocoupler
• No isolation between control
outputs
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC) Dielectric strength 510 VAC between isolated
circuits for 1 minute with a
leakage current of 5 mA max.
I/O power supply
method Supplied from the NX bus. Current capacity of I/O
power supply terminals IOG: 0.1 A max. per terminal
NX Unit power
consumption • Connected to a CPU Unit
1.80 W max.
• Connected to
Communications Coupler
Unit 1.35 W max. Current consumption
from I/O power supply 20 mA max.
Weight 140 g max.
Circuit configuration
Installation orientation
and restrictions Mounting orientation:
• Connect to CPU unit
Front mounting orientation is possible
• Connect to communication coupler unit
Six orientations are possible

Limitation:
The cold junction compensation error is limited by the mounting orientation and the type or
power consumption of the adjacent unit. For details, refer to Cold Junction Compensation
Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection
diagram

*1. For the setting ranges and indication ranges of the sensors, refer to the Input types.
*2. + 20°C only for the following input type settings:
      1: JPt100
      3: JPt100
      10: T
      14: U
*3. For details, refer to the Reference Accuracy and Temperature Coefficient Table.
      For thermocouple inputs, reference accuracy and cold junction compensation error are guaranteed for a set of a
      Temperature Control Unit and a terminal block on which a cold junction sensor is mounted.
      Be sure to use the terminal block and the Temperature Control Unit with the same calibration control number
      together.
      A calibration control number is displayed both on the terminal block and the Unit.
      In order to distinguish left and right terminal blocks, each terminal block has either a letter "L" (left side) or "R" (right
      side) appended at the end of a calibration control number.
      Make sure to return the terminal block to which a cold junction sensor is mounted and the Unit together.
*4. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.

Temperature Control Unit (4-Channel Type) NX-TC3406

Unit name Temperature Control Unit
(4-Channel Type) Model NX-TC3406
Number of Channels 4 channels Control type Standard control
Number of points per
channel • Temperature input: 1 point
per channel (4 points per unit)
• CT input: None
• Control Output: 1 point per
channel (4 points per unit) External connection
terminal Screwless clamping terminal
block (16 terminals x 2)
I/O refreshing method Free-Run Refreshing
Indicators TS indicator and output
indicators
CT
Input
section CT current
input range --
Input
resistance --
Connectable
CTs --
Maximum
heater current --
Resolution --
Overall
accuracy
(25°C) --
Influence of
temperature
(0 to 55°C) --
Conversion
time --
Control
Output
section Control output
type and
number of
control outputs
per channel Voltage output for driving
SSR, 1 point per channel
Internal I/O
common PNP
Control Period 0.1, 0.2, 0.5, 1 to 99s
Manipulated
variable -5 to +105%
Sensor
Input
section Temperature
sensor *1 • Thermocouple input: K, J, T,
E, L, U, N, R, S, B, C/W, PL II
• Platinum resistance
thermometer input: Pt100
(three-wire), JPt100 (three-
wire) Resolution --
Input
conversion
range ±20°C of the input range
*2 Rated Voltage 24 VDC
Absolute
maximum
rating ±130 mV Operating Load
Voltage Range 15 to 28.8 VDC
Input
impedance 20 kΩ min. Maximum load
current 21 mA/point, 84 mA/Unit
Resolution 0.1°C max. Maximum
Inrush Current 0.3 A/point max., 10 ms max.
Reference
accuracy *3 Allowable load
resistance --
Temperature
coefficient *3 Leakage
current 0.1 mA max.
Cold junction
compensation
error ±1.2°C *3 *4 Residual
voltage 1.5 V max.
Input
disconnection
detection
current Approx. 0.1 uA Load Short-
circuit
Protection Provided
Input
detection
current 0.25 mA Output range --
Effect of
conductor
resistance • Thermocouple input: 0.1°C/
Ω (100 Ω or less per
conductor)
• Platinum resistance
thermometer input: 0.06°C/
Ω (20 Ω or less per
conductor) Overall
accuracy
(25°C) --
Warm-up
period 30 minutes Influence of
temperature
(0 to 55°C) --
Conversion
time 50 ms/Unit
Dimensions 24 mm (W) ×100 mm (H) ×
71 mm (D) Isolation method • Between sensor inputs and
internal circuitry: Power =
Transformer, Signal = Digital
isolator
• Between inputs: Power =
Transformer, Signal = Digital
isolator
• Between control output and
internal circuit: Photocoupler
• No isolation between control
outputs
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC) Dielectric strength 510 VAC between isolated
circuits for 1 minute with a
leakage current of 5 mA max.
I/O power supply
method Supplied from the NX bus. Current capacity of I/O
power supply terminals IOG: 0.1 A max. per terminal
NX Unit power
consumption • Connected to a CPU Unit
1.70 W max.
• Connected to
Communications Coupler
Unit 1.25 W max. Current consumption
from I/O power supply 20 mA max.
Weight 140 g max.
Circuit configuration
Installation orientation
and restrictions Mounting orientation:
• Connect to CPU unit
Front mounting orientation is possible
• Connect to communication coupler unit
Six orientations are possible

Limitation:
The cold junction compensation error is limited by the mounting orientation and the type or
power consumption of the adjacent unit. For details, refer to Cold Junction Compensation
Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection
diagram

*1. For the setting ranges and indication ranges of the sensors, refer to the Input types.
*2. + 20°C only for the following input type settings:
      1: JPt100
      3: JPt100
      10: T
      14: U
*3. For details, refer to the Reference Accuracy and Temperature Coefficient Table.
     For thermocouple inputs, reference accuracy and cold junction compensation error are guaranteed for a set of a
     Temperature Control Unit and a terminal block on which a cold junction sensor is mounted.
     Be sure to use the terminal block and the Temperature Control Unit with the same calibration control number
     together.
     A calibration control number is displayed both on the terminal block and the Unit.
     In order to distinguish left and right terminal blocks, each terminal block has either a letter "L" (left side) or "R" (right
     side) appended at the end of a calibration control number.
     Make sure to return the terminal block to which a cold junction sensor is mounted and the Unit together.
*4. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.

Temperature Control Unit (4-Channel Type) NX-TC3407

Unit name Temperature Control Unit
(4-Channel Type) Model NX-TC3407
Number of Channels 4 channels Control type heating and cooling control
Number of points per
channel • Temperature input: 1 point
per channel (4 points per unit)
• CT input: None
• Control Output: 2 point per
channel (8 points per unit) External connection
terminal Screwless clamping terminal
block (16 terminals x 2)
I/O refreshing method Free-Run Refreshing
Indicators TS indicator and output
indicators

CT
Input
section CT current
input range --
Input
resistance --
Connectable
CTs --
Maximum
heater current --
Resolution --
Overall
accuracy
(25°C) --
Influence of
temperature
(0 to 55°C) --
Conversion
time --
Control
Output
section Control output
type and
number of
control outputs
per channel Voltage output for driving
SSR, 2 point per channel
Internal I/O
common PNP
Control Period 0.1, 0.2, 0.5, 1 to 99s
Manipulated
variable • Heating: 0 to +105%
• Cooling: 0 to +105%
Sensor
Input
section Temperature
sensor *1 • Thermocouple input: K, J, T,
E, L, U, N, R, S, B, C/W, PL II
• Platinum resistance
thermometer input: Pt100
(three-wire), JPt100 (three-
wire) Resolution --
Input
conversion
range ±20°C of input range
*2 Rated Voltage 24 VDC
Absolute
maximum
rating ±130 mV Operating Load
Voltage Range 15 to 28.8 VDC
Input
impedance 20 kΩ min. Maximum load
current 21 mA/point, 168 mA/Unit
Resolution 0.1°C max. Maximum
Inrush Current 0.3 A/point max., 10 ms max.
Reference
accuracy *3 Allowable load
resistance --
Temperature
coefficient *3 Leakage
current 0.1 mA max.
Cold junction
compensation
error ±1.2°C *3 *4 Residual
voltage 1.5 V max.
Input
disconnection
detection
current Approx. 0.1 uA Load Short-
circuit
Protection Provided
Input
detection
current 0.25 mA Output range --
Effect of
conductor
resistance • Thermocouple input: 0.1°C/
Ω (100 Ω or less per
conductor)
• Platinum resistance
thermometer input: 0.06°C/
Ω (20 Ω or less per
conductor) Overall
accuracy
(25°C) --
Warm-up
period 30 minutes Influence of
temperature
(0 to 55°C) --
Conversion
time 50 ms/Unit
Dimensions 24 mm (W) ×100 mm (H) ×
71 mm (D) Isolation method • Between sensor inputs and
internal circuitry: Power =
Transformer, Signal = Digital
isolator
• Between inputs: Power =
Transformer, Signal = Digital
isolator
• Between control output and
internal circuit: Photocoupler
• No isolation between control
outputs
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC) Dielectric strength 510 VAC between isolated
circuits for 1 minute with a
leakage current of 5 mA max.
I/O power supply
method Supplied from the NX bus. Current capacity of I/O
power supply terminals IOG: 0.1 A max. per terminal
NX Unit power
consumption • Connected to a CPU Unit
1.75 W max.
• Connected to
Communications Coupler
Unit 1.30 W max. Current consumption
from I/O power supply 20 mA max.
Weight 140 g max.
Circuit configuration
Installation orientation
and restrictions Mounting orientation:
• Connect to CPU unit
Front mounting orientation is possible
• Connect to communication coupler unit
Six orientations are possible

Limitation:
The cold junction compensation error is limited by the mounting orientation and the type or
power consumption of the adjacent unit. For details, refer to Cold Junction Compensation
Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection
diagram

*1. For the setting ranges and indication ranges of the sensors, refer to the Input types.
*2. + 20°C only for the following input type settings:
     1: JPt100
     3: JPt100
     10: T
     14: U
*3. For details, refer to the Reference Accuracy and Temperature Coefficient Table.
     For thermocouple inputs, reference accuracy and cold junction compensation error are guaranteed for a set of a
     Temperature Control Unit and a terminal block on which a cold junction sensor is mounted.
     Be sure to use the terminal block and the Temperature Control Unit with the same calibration control number
     together.
     A calibration control number is displayed both on the terminal block and the Unit.
     In order to distinguish left and right terminal blocks, each terminal block has either a letter "L" (left side) or "R" (right
     side) appended at the end of a calibration control number.
     Make sure to return the terminal block to which a cold junction sensor is mounted and the Unit together.
*4. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.

Temperature Control Unit (4-Channel Type) NX-TC3408

Unit name Temperature Control Unit
(4-Channel Type) Model NX-TC3408
Number of Channels 4 channels Control type Standard control
Number of points per
channel • Temperature input: 1 point
per channel (4 points per unit)
• CT input: None
• Control Output: 1 point per
channel (4 points per unit) External connection
terminal Screwless clamping terminal
block (16 terminals x 2)
I/O refreshing method Free-Run Refreshing
Indicators TS indicator and output
indicators
CT
Input
section CT current
input range --
Input
resistance --
Connectable
CTs --
Maximum
heater current --
Resolution --
Overall
accuracy
(25°C) --
Influence of
temperature
(0 to 55°C) --
Conversion
time --
Control
Output
section Control output
type and
number of
control outputs
per channel Linear current output, one
output per channel
Internal I/O
common --
Control Period --
Manipulated
variable -5 to +105%
Sensor
Input
section Temperature
sensor *1 • Thermocouple input: K, J, T,
E, L, U, N, R, S, B, C/W, PL II
• Platinum resistance
thermometer input: Pt100
(three-wire), JPt100 (three-
wire) Resolution 1/10,000
Input
conversion
range ±20°C of the input range
*2 Rated Voltage 24 VDC
Absolute
maximum
rating ±130 mV Operating Load
Voltage Range 15 to 28.8 VDC
Input
impedance 20 kΩ min. Maximum load
current --
Resolution 0.1°C max. Maximum
Inrush Current --
Reference
accuracy *3 Allowable load
resistance 350 Ω or less, or greater than
350 Ω but no more than 600
Ω *4
Temperature
coefficient *3 Leakage
current --
Cold junction
compensation
error ±1.2°C *3 *5 Residual
voltage --
Input
disconnection
detection
current Approx. 0.1 uA Load Short-
circuit
Protection --
Input
detection
current 0.25 mA Output range 0 to 20 mA, 4 to 20 mA
Effect of
conductor
resistance • Thermocouple input: 0.1°C/
Ω (100 Ω or less per
conductor)
• Platinum resistance
thermometer input: 0.06°C/
Ω (20 Ω or less per
conductor) Overall
accuracy
(25°C) ±0.3% of full scale, but 1% of
full scale at 0 to 4 mA of 0 to
20 mA range
Warm-up
period 30 minutes Influence of
temperature
(0 to 55°C) ±0.3% (full scale)
Conversion
time 50 ms/Unit
Dimensions 24 mm (W) ×100 mm (H) ×
71 mm (D) Isolation method • Between sensor inputs and
internal circuitry: Power =
Transformer, Signal = Digital
isolator
• Between inputs: Power =
Transformer, Signal = Digital
isolator
• Between control output and
internal circuit: Photocoupler
• No isolation between control
outputs
Insulation resistance 20 MΩ min. between isolated
circuits (at 100 VDC) Dielectric strength 510 VAC between isolated
circuits for 1 minute with a
leakage current of 5 mA max.
I/O power supply
method Supplied from the NX bus. Current capacity of I/O
power supply terminals IOG: 0.1 A max. per terminal
NX Unit power
consumption • Connected to a CPU Unit
1.65 W max.
• Connected to
Communications Coupler
Unit 1.25 W max. Current consumption
from I/O power supply 30 mA max.
Weight 140 g max.
Circuit configuration
Installation orientation
and restrictions Mounting orientation:
• Connect to CPU unit
Front mounting orientation is possible
• Connect to communication coupler unit
Six orientations are possible

Limitation:
The cold junction compensation error is limited by the mounting orientation and the type or
power consumption of the adjacent unit. For details, refer to Cold Junction Compensation
Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection
diagram

*1. For the setting ranges and indication ranges of the sensors, refer to the Input types.
*2. + 20°C only for the following input type settings:
      1: JPt100
      3: JPt100
      10: T
      14: U
*3. For details, refer to the Reference Accuracy and Temperature Coefficient Table.
      For thermocouple inputs, reference accuracy and cold junction compensation error are guaranteed for a set of a
      Temperature Control Unit and a terminal block on which a cold junction sensor is mounted.
      Be sure to use the terminal block and the Temperature Control Unit with the same calibration control number
      together.
      A calibration control number is displayed both on the terminal block and the Unit.
      In order to distinguish left and right terminal blocks, each terminal block has either a letter "L" (left side) or "R" (right
      side) appended at the end of a calibration control number.
     Make sure to return the terminal block to which a cold junction sensor is mounted and the Unit together.
*4. To use an allowable load resistance greater than 350 Ω but not exceeding 600 Ω, either SHT1 and SHT2, or SHT3 and
      SHT4 must be shorted with a shorting cable.
      For details, refer to the NX-series Temperature Control Units User’s Manual (Cat. No. W523).
*5. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.

Input types

The settings are shown in the following table.

Setting name *1 Display of
support software Description Default Setting
range Unit Change
application timing
Ch[] input type Ch[] Input Type Sets the input type of
sensors connected to
temperature input. 5: K -200 to
1300°C *2 No After unit restart

*1.[] represents the channel number.
*2. The setting range is as follows:

Set
values Input types Input indication range Remarks
Sensor Input setting range
0 Pt100 -200 to 850°C/-300 to 1500°F -220 to 870°C/-340 to 1540°F Resistance
thermometer
1 Pt100 -199.9 to 500.0°C/-199.9 to 900.0°F -219.9 to 520.0°C/-239.9 to 940.0°F
2 Pt100 -0.0 to 100.0°C/0.0 to 210.0°F -20.0 to 120.0°C/-40.0 to 250.0°F
3 JPt100 -199.9 to 500.0°C/-199.9 to 900.0°F -219.9 to 520.0°C/-239.9 to 940.0°F
4 JPt100 -0.0 to 100.0°C/0.0 to 210.0°F -20.0 to 120.0°C/-40.0 to 250.0°F
5 K -200 to 1300°C/-300 to 2300°F -220 to 1320°C/-340 to 2340°F Thermocouple
6 K -20.0 to 500.0°C/0.0 to 900.0°F -40.0 to 520.0°C/-40.0 to 940.0°F
7 J -100 to 850°C/-100.0 to 1500°F -120 to 870°C/-140 to 1540°F
8 J -20.0 to 400.0°C/0.0 to 750.0°F -40.0 to 420.0°C/-40.0 to 790.0°F
9 T -200 to 400°C/-300 to 700°F -220 to 420°C/-340 to 740°F
10 T -199.9 to 400.0°C/-199.9 to 700.0°F -219.9 to 420.0°C/-239.9 to 740°F
11 E -200 to 600°C/-300 to 1100°F -220 to 620°C/-340 to 1140°F
12 L -100 to 850°C/-100 to 1500°F -120 to 870°C/-140 to 1540°F
13 U -200 to 400°C/-300 to 700°F -220 to 420°C/-340 to 740°F
14 U -199.9 to 400.0°C/-199.9 to 700.0°F -219.9 to 420.0°C/-239.9 to 740°F
15 N -200 to 1300°C/-300 to 2300°F -220 to 1320°C/-340 to 2340°F
16 R 0 to 1700°C/0 to 3000°F -20 to 1720°C/-40 to 3040°F
17 S 0 to 1700°C/0 to 3000°F -20 to 1720°C/-40 to 3040°F
18 B 0 to 1800°C/0 to 3200°F -20 to 1820°C/-40 to 3240°F
19 C/W 0 to 2300°C/0 to 3200°F -20 to 2320°C/-40 to 3240°F
20 PLII 0 to 1300°C/0 to 2300°F -20 to 1320°C/-40 to 2340°F

Reference Accuracy and Temperature Coefficient Table

Reference accuracies and temperature coefficients are shown below by input type and measurement temperature.
To convert the temperature unit from Celsius to Fahrenheit, use the following equation.
Fahrenheit temperature (°F) = Celsius temperature (°C) x 1.8 + 32

Set
values Input type Measurement
temperature (°C) Reference
accuracy °C (%)
*2 Temperature coefficient
°C/°C *3
(ppm/°C *4)
Sensor Temperature
range (°C) *1
0 Pt100 -200 to 850 -200 to 300 ±1.0 (±0.1%) ±0.1 (±100 ppm/°C)
300 to 700 ±2.0 (±0.2%) ±0.2 (±200 ppm/°C)
700 to 850 ±2.5 (±0.25%) ±0.25 (±250 ppm/°C)
1 Pt100 -199.9 to 500.0 -199.9 to 300.0 ±0.8 (±0.12%) ±0.1 (±150 ppm/°C)
300.0 to 500.0 ±0.8 (±0.12%) ±0.2 (±300 ppm/°C)
2 Pt100 0.0 to 100.0 0.0 to 100.0 ±0.8 (±0.8%) ±0.1 (±1000 ppm/°C)
3 JPt100 -199.9 to 500.0 -199.9 to 300.0 ±0.8 (±0.12%) ±0.1 (±150 ppm/°C)
300.0 to 500.0 ±0.8 (±0.12%) ±0.2 (±300 ppm/°C)
4 JPt100 0.0 to 100.0 0.0 to 100.0 ±0.8 (±0.8%) ±0.1 (±1000 ppm/°C)
5 K -200 to 1300 -200 to -100 ±1.5 (±0.1%) ±0.15 (±100 ppm/°C)
-100 to 400 ±0.30 (±200 ppm/°C)
400 to 1300 ±0.38 (±250 ppm/°C)
6 K -20.0 to 500.0 -20.0 to 400.0 ±1.0 (±0.2%) ±0.30 (±600 ppm/°C)
400.0 to 500.0 ±0.38 (±760 ppm/°C)
7 J -100 to 850 -100 to 400 ±1.4 (±0.15%) ±0.14 (±150 ppm/°C)
400 to 850 ±1.2 (±0.13%) ±0.28 (±300 ppm/°C)
8 J -20.0 to 400.0 -20.0 to 400.0 ±1.0 (±0.24%) ±0.14 (±350 ppm/°C)
9 T -200 to 400 -200 to -100 ±1.2 (±0.2%) ±0.30 (±500 ppm/°C)
-100 to 400 ±0.12 (±200 ppm/°C)
10 T -199.9 to 400.0 -199.9 to -100.0 ±1.2 (±0.2%) ±0.30 (±500 ppm/°C)
-100.0 to 400.0 ±0.12 (±200 ppm/°C)
11 E -200 to 600 -200 to 400 ±1.2 (±0.15%) ±0.12 (±150 ppm/°C)
400 to 600 ±2.0 (±0.25%) ±0.24 (±300 ppm/°C)
12 L -100 to 850 -100 to 300 ±1.1 (±0.12%) ±0.11 (±120 ppm/°C)
300 to 700 ±2.2 (±0.24%) ±0.22 (±240 ppm/°C)
700 to 850 ±0.28 (±300 ppm/°C)
13 U -200 to 400 -200 to 400 ±1.2 (±0.2%) ±0.12 (±200 ppm/°C)
14 U -199.9 to 400.0 -199.9 to 400.0 ±1.2 (±0.2%) ±0.12 (±200 ppm/°C)
15 N -200 to 1300 -200 to 400 ±1.5 (±0.1%) ±0.30 (±200 ppm/°C)
400 to 1000
1000 to 1300 ±0.38 (±250 ppm/°C)
16 R 0 to 1700 0 to 500 ±1.75 (±0.11%) ±0.44 (±260 ppm/°C)
500 to 1200 ±2.5 (±0.15%)
1200 to 1700
17 S 0 to 1700 0 to 1700 ±2.5 (±0.15%) ±0.44 (±260 ppm/°C)
18 B 0 to 1800 0 to 400 Reference accuracy
cannot be guaranteed Reference accuracy
cannot be guaranteed
400 to 1200 ±3.6 (±0.2%) ±0.45 (±250 ppm/°C)
1200 to 1800 ±5.0 (±0.28%) ±0.54 (±300 ppm/°C)
19 C/W 0 to 2300 0 to 300 ±1.15 (±0.05%) ±0.46 (±200 ppm/°C)
300 to 800 ±2.3 (±0.1%)
800 to 1500 ±3.0 (±0.13%)
1500 to 2300 ±0.691 (±300 ppm/°C)
20 PL II 0 to 1300 0 to 400 ±1.3 (±0.1%) ±0.23 (±200 ppm/°C)
400 to 800 ±2.0 (±0.15%) ±0.39 (±300 ppm/°C
800 to 1300 ±0.65 (±500 ppm/°C)

*1. The decimal point position of the various input types is "no decimal point" or "decimal point 1 digit". When calculating
      measured value error, round up calculation results in accordance with the decimal point position of the temperature
      range.
*2. The overall accuracy of the Temperature Control Unit is guaranteed for a set consisting of a cold junction sensor that
      is mounted on the terminal block and a Temperature Control Unit. Be sure to use the terminal block and Temperature
      Control Unit with the same calibration control number together. For the 24mm width model, also be sure the left and
      right terminal blocks are correctly attached.

*3. An error for a measured value when the ambient temperature changes by 1°C.
     The following formula is used to calculate the error of the measured value for thermocouple inputs..
     Overall accuracy = Reference accuracy + Temperature characteristic x Change in the ambient temperature + Cold
     junction compensation error For resistance thermometer inputs, there is no cold junction compensation error.
     (Calculation example)

Conditions

Item Description
Ambient temperature 30°C
Measured value 100°C
Thermocouple K: -200 to 1300°C

The characteristic values are formulated from the datasheet or reference accuracy and temperature coefficient table under the above conditions

Item Description
Reference accuracy -100 to 400°C: ±1.5°C
Temperature coefficient -100 to 400°C: ±0.30°C/°C
Change in the ambient temperature 25°C -> 30°C 5 deg
Cold junction compensation error ±1.2°C

Therefore,
Overall accuracy = Reference accuracy + Temperature characteristic x Change in the ambient temperature +
Cold junction compensation error
        = ±1.5°C +(±0.30°C/°C) x 5 deg + ±1.2°C
        = ±4.2°C
-200 to 1300°C without decimal point. the calculation result is round up after the decimal point.
Then the overall accuracy is ±5°C.

*4. The ppm value is for the full scale of the temperature range.

Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type

This section describes the cold junction compensation errors for thermocouple inputs, which differ by installation orientation of this Unit, type of adjacent Units, and current consumed by the adjacent Units.

When the Adjacent Units are Temperature Control Units

This section describes the cold junction compensation errors when the adjacent Units are Temperature Control Units. The error differs by installation orientation.

(a) For upright installation

The cold junction compensation error is ±1.2°C.
However, there are exceptions depending on the input type and temperature. Those conditions and the cold junction compensation error are as in the table below.

Input type and temperature range Cold junction compensation error
T below -90°C ±3.0°C
J, E, K and N below -100°C
U, L and PLII
R and S below 200°C
B below 400°C Not guaranteed
C/W ±3.0°C

(b) For other than upright installation

The cold junction compensation error is ±4.0°C.
However, there are exceptions depending on the input type and temperature. Those conditions and the cold junction compensation error are as in the table below.

Input type and temperature range Cold junction compensation error
T below -90°C ±7.0°C
J, E, K and N below -100°C
U, L and PLII
R and S below 200°C
B below 400°C Not guaranteed
C/W ±9.0°C

When the Adjacent Units are not Temperature Control Units

This section describes the cold junction compensation errors when the adjacent Units are not Temperature Control Units. The error differs by the installation orientation and power consumption by the adjacent Units.

(a) For upright installation, when the power consumption is 1.5 W or less for both the left and right adjacent Units

The cold junction compensation error is ±1.2°C.
However, there are exceptions depending on the input type and temperature. Those conditions and the cold junction compensation error are as in the table below.

Input type and temperature range Cold junction compensation error
T below -90°C ±3.0°C
J, E, K and N below -100°C
U, L and PLII
R and S below 200°C
B below 400°C Not guaranteed
C/W ±3.0°C

(b) When the power consumption of either the left or the right adjacent Unit is more than 1.5 W but less than 3.9 W.
     Or for any installation other than upright, when the power consumption of both the left and right adjacent Units is
     less than 3.9 W

The cold junction compensation error is ±4.0°C.
However, there are exceptions depending on the input type and temperature. Those conditions and the cold junction compensation error are as in the table below.

Input type and temperature range Cold junction compensation error
T below -90°C ±7.0°C
J, E, K and N below -100°C
U, L and PLII
R and S below 200°C
B below 400°C Not guaranteed
C/W ±9.0°C

(c) When the power consumption exceeds 3.9 W for either the left or right adjacent Unit

Do not use the above condition (c) because the cold junction compensation error is not guaranteed in this condition.

(d) The power consumption of adjacent Units

The power consumption of adjacent Units is the total of the following values.
• The power consumption of the NX Unit power supply and I/O power supply for the NX Units adjacent to the Temperature Input Unit. If the adjacent Unit is an Input Unit, it is the total power consumption according to the input current.

Version Information
Connected to a CPU Unit

Refer to the user's manual for the CPU Unit for details on the CPU Units to which NX Units can be connected.

NX Unit Corresponding version *1
Model Unit Version CPU Unit Sysmac Studio
NX-TC2405 Ver.1.0 Ver. 1.13 Ver.1.21
Ver.1.1 Ver.1.22
NX-TC2406 Ver.1.0 Ver.1.21
Ver.1.1 Ver.1.22
NX-TC2407 Ver.1.0 Ver.1.21
Ver.1.1 Ver.1.22
NX-TC2408 Ver.1.0 Ver.1.21
Ver.1.1 Ver.1.22
NX-TC3405 Ver.1.0 Ver.1.21
Ver.1.1 Ver.1.22
NX-TC3406 Ver.1.0 Ver.1.21
Ver.1.1 Ver.1.22
NX-TC3407 Ver.1.0 Ver.1.21
Ver.1.1 Ver.1.22
NX-TC3408 Ver.1.0 Ver.1.21
Ver.1.1 Ver.1.22

*1. Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version,
      support is provided by the oldest available version after the specified version. Refer to the user's manuals for the
      specific Units for the relation between models and versions.

Connected to a Communications EtherCAT Coupler Unit

NX Unit Corresponding version *1
Model Unit Version EtherCAT Coupler Unit CPU Unit or Industrial PC Sysmac Studio
NX-TC2405 Ver.1.0 Ver.1.0 *2 Ver. 1.05 Ver. 1.21
Ver.1.1 Ver. 1.22
NX-TC2406 Ver.1.0 Ver. 1.21
Ver.1.1 Ver. 1.22
NX-TC2407 Ver.1.0 Ver. 1.21
Ver.1.1 Ver. 1.22
NX-TC2408 Ver.1.0 Ver. 1.21
Ver.1.1 Ver. 1.22
NX-TC3405 Ver.1.0 Ver. 1.21
Ver.1.1 Ver. 1.22
NX-TC3406 Ver.1.0 Ver. 1.21
Ver.1.1 Ver. 1.22
NX-TC3407 Ver.1.0 Ver. 1.21
Ver.1.1 Ver. 1.22
NX-TC3408 Ver.1.0 Ver. 1.21
Ver.1.1 Ver. 1.22

*1. Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version,
      support is provided by the oldest available version after the specified version. Refer to the user’s manuals for the
      specific Units for the relation between models and versions.
*2. When you connect the Unit to a master of other manufacturer, use an EtherCAT Coupler Unit with unit version 1.5 or later.

Connected to a Communications EtherNet/IP Coupler Unit

NX Unit Corresponding version*1
Model Unit
Version Application with an NJ/NX/NY-series
Controller *2 Application with an CS/CJ/CP-series
PLC *3
EtherNet/IP
Coupler Unit CPU Unit or
Industrial PC Sysmac
Studio EtherNet/IP
Coupler Unit Sysmac
Studio NX-IO
Configurator
NX-TC2405 Ver.1.0 Ver.1.2 Ver.1.14 Ver.1.21 Ver. 1.2 Ver.1.21 Ver.1.11
Ver.1.1 Ver.1.22 Ver.1.22 Ver.1.12
NX-TC2406 Ver.1.0 Ver.1.21 Ver.1.21 Ver.1.11
Ver.1.1 Ver.1.22 Ver.1.22 Ver.1.12
NX-TC2407 Ver.1.0 Ver.1.21 Ver.1.21 Ver.1.11
Ver.1.1 Ver.1.22 Ver.1.22 Ver.1.12
NX-TC2408 Ver.1.0 Ver.1.21 Ver.1.21 Ver.1.11
Ver.1.1 Ver.1.22 Ver.1.22 Ver.1.12
NX-TC3405 Ver.1.0 Ver.1.21 Ver.1.21 Ver.1.11
Ver.1.1 Ver.1.22 Ver.1.22 Ver.1.12
NX-TC3406 Ver.1.0 Ver.1.21 Ver.1.21 Ver.1.11
Ver.1.1 Ver.1.22 Ver.1.22 Ver.1.12
NX-TC3407 Ver.1.0 Ver.1.21 Ver.1.21 Ver.1.11
Ver.1.1 Ver.1.22 Ver.1.22 Ver.1.12
NX-TC3408 Ver.1.0 Ver.1.21 Ver.1.21 Ver.1.11
Ver.1.1 Ver.1.22 Ver.1.22 Ver.1.12

*1. Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version,
      support is provided by the oldest available version after the specified version. Refer to the user's manuals for the
      specific Units for the relation between models and versions.
*2. Refer to the user's manual of the EtherNet/IP Coupler Unit for the unit versions of EtherNet/IP Units corresponding to
     EtherNet/IP Coupler Units.
*3. Refer to the user's manual of the EtherNet/IP Coupler Unit for the unit versions of CPU Units and EtherNet/IP Units
      corresponding to EtherNet/IP Coupler Units.

last update: January 7, 2019

OMRON NX-TC dimension
NX-TC NX-series Temperature Control Unit/Dimensions
last update: April 2, 2018

(Unit: mm)

Temperature Control Unit

NX-TC2405/2406/2407/2408 (2 Ch type)
12 mm Width

NX-TC3405/3406/3407/3408 (4 Ch type)
24 mm Width

last update: April 2, 2018

OMRON NX-TC catalog
NX-TC NX-series Temperature Control Unit/Catalog

Catalog

Manual

CAD

English
Global Edition

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.
*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.

Catalog Name Catalog Number
[size] Last Update

NX-TC Data Sheet H229-E1-02
[4506KB] Jan 07, 201920190107 NX-TC Data Sheet

E5[]D/NX-TC Catalog H222-E1-03
[3882KB] Jan 07, 201920190107 E5[]D/NX-TC Catalog

NX-series I/O System Catalog R183-E1-09
[6683KB] Nov 01, 201820181101 NX-series I/O System Catalog

OMRON NX-TC lineup
NX-TC NX-series Temperature Control Unit/Lineup
last update: January 7, 2019
Applicable standards

Ask your OMRON representative for the most recent applicable standards for each model.

Temperature Control Units

Unit
type Product
name Specification Model
Num-
ber of
chan-
nels Input
type Out-
put Output
capac-
ity CT
Input
ca-
pacity Con-
trol
type Con-
ver-
sion
time I/O re-
freshing
method
NX
Series
Temper-
ature
Control
Unit Temper-
ature
Control
Unit
2Ch
type
2 Ch Multi-
input
(Therm-
ocouple
and
Resistance
thermom-
eter) Voltage
output
(for
driving
SSR) 2
points 2
points Standard
Control 50 m
sec Free-
Run
refreshing NX-TC2405
None Standard
Control NX-TC2406
Voltage
output
(for
driving
SSR) 4
points None Heating
and
Cooling
Control NX-TC2407
Linear
current
output 2
points None Standard
Control NX-TC2408
Temper-
ature
Control
Unit
4Ch
type
4 Ch Voltage
output
(for
driving
SSR) 4
points 4
points Standard
Control NX-TC3405
None Standard
Control NX-TC3406
Voltage
output
(for
driving
SSR) 8
points None Heating
and
Cooling
Control NX-TC3407
Linear
current
output 4
points None Standard
Control NX-TC3408

Optional Products

Product name Specification Model
Unit/Terminal Block Coding Pins Pins for 10 Units
(30 terminal block pins and 30 Unit pins) NX-AUX02

Product name Specification Model
Current Transformer (CT) Hole diameter: 5.8 mm E54-CT1
Hole diameter: 5.8 mm E54-CT1L *
Hole diameter: 12.0 mm E54-CT3
Hole diameter: 12.0 mm E54-CT3L *

* Lead wires are included with these CTs. If UL certification is required, use these CTs.

Accessories

Not included.

last update: January 7, 2019

NO. NX-TC

TYPE:Machine Automation Controllers NX-series I/O System Temperature Control Unit / Temperature Input Unit / Heater Burnout Detection Unit

DATE:2021-06-09

Associated products:
E5ZN-DRT DeviceNet Communications Unit/Features CJ1W-TC CJ Series Temperature Control Unit/Features

Item	Specification
Enclosure	Mounted in a panel
Grounding method	Ground to 100 Ω or less
Operating environment	Ambient operating temperature	0 to 55°C
Ambient operating humidity	10 to 95% RH (with no condensation or icing)
Atmosphere	Must be free from corrosive gases.
Ambient storage temperature	-25 to 70°C (with no condensation or icing)
Altitude	2,000 m max.
Pollution degree	Pollution degree 2 or less: Conforms to JIS B 3502 and IEC 61131-2.
Noise immunity	Conforms to IEC 61000-4-4, 2 kV (power supply line)
Overvoltage category	Category II: Conforms to JIS B 3502 and IEC 61131-2.
EMC immunity level	Zone B
Vibration resistance	Conforms to IEC 60068-2-6. 5 to 8.4 Hz with amplitude of 3.5 mm, 8.4 to 150 Hz, acceleration of 9.8 m/s² 100 min each in X, Y, and Z directions (10 sweeps of 10 min each = 100 min total)
Shock resistance	Conforms to IEC 60068-2-27. 147 m/s², 3 times each in X, Y, and Z directions
Insulation resistance	20 MΩ min. between isolated circuits (at 100 VDC)
Dielectric strength	510 VAC between isolated circuits for 1 minute at a leakage current of 5 mA max.
Applicable standards *	cULus: Listed (UL 61010-2-201), ANSI/ISA 12.12.01, EU: EN 61131-2, RCM, KC: KC Registration, EAC, NK, LR, BV

Function name	Description	Applicable units
Free-Run Refreshing	With this I/O refreshing method, the refresh cycle of the NX bus and the I/O refresh cycles of the NX Units are asynchronous.	All models
Selecting Channel To Use	This function disables control processing, error detection, and output for unused channels. The conversion time for its own Unit will not be shortened even if errors are disabled.	All models
Input Functions	Input Type Setting	This function sets the input type of the sensor connected to the temperature input.	All models
Temperature Unit Setting (°C/°F)	This function sets the temperature units for measured values to °C (Celsius) or °F (Fahrenheit).	All models
Decimal Point Position Setting	This function sets the number of digits to be displayed after the　decimal point for INT type measured values and set point parameters.	All models
Cold Junction Compensation Enable/Disable Setting	This function enables or disables cold junction compensation using the cold junction sensor that is mounted on the terminal block when a thermocouple input is used.	All models
Temperature Input Correction	This function corrects measured values. When there are variations in the sensor or when there is a difference in measured value from other measuring instruments. One-point correction and two-point correction methods are provided.	All models
Input Digital Filter	This function sets the time constant applied to the first-order lag operation filter so that the noise components mixed with the measured value are eliminated.	All models
Measuring the Ambient Temperature Around Terminals	This function measures the temperature around the terminals of the Temperature Control Unit.	All models
Control Processing	ON/OFF control	This control function uses a preset set point to turn off the control output when the temperature reaches the set point during control.	All models
PID control	PID control is a combination of proportional (P) control, integral　(I) control, and differential (D) control. It is a control function that feeds back the detected value to the set point so that they conform to each other.	All models
Heating/Cooling Control	This function controls both heating and cooling.	Heating/cooling control type models
Run or Stop Controls	This function starts and stops temperature control.	All models
Direct/Reverse Operation	This function specifies direct or reverse operation.	All models
Manual MV (Manual Manipulated Variable)	This function outputs the specified manipulated variable during PID control.	All models
MV at Error (error MV)	This function outputs a fixed manipulated variable when a Sensor Disconnected Error occurs.	All models
MV Limit	This function adds a limit to the manipulated variable calculated by PID control and outputs it.	All models
Load Rejection MV	This function performs a preset output operation if the Temperature Control Unit connected to the CPU Unit cannot receive the output setting values from the CPU Unit due to an NX bus error or CPU watchdog timer error. This function performs a preset output operation if the Slave Terminal cannot receive the output setting values due to a communications error between the Temperature Control Unit and the Communications Coupler Unit host or due to an error on the NX bus.	All models
MV Branch	The manipulated variables calculated by the slope or offset are output to the branch-destination channel based on the manipulated variables of the branch-source channel.	Standard control type models
Load Short-circuit Protection	This function protects output circuits of the Temperature Control Unit when an external device connected to the control output is short-circuited.	Models with voltage output (for driving SSR)
Tuning	AT (Autotuning)	This is a tuning method that derives the PID constant. This function automatically calculates the PID constant by the limit cycle method according to the characteristics of the control target.	All models
Automatic Filter Adjustment	This is a tuning method that automatically adjusts the input digital filter. This function is primarily for packing machines. It suppresses periodic temperature variations.	Standard control type models
Water-cooling Output Adjustment	This is a tuning method that automatically adjusts hunting. This function is primarily for water-cooled extruders. It suppresses temperature variations caused by the cooling water output.	Heating/cooling control type models
Adaptive Control	This is a tuning method that can maintain high control performance by following system changes. This function maintains control performance even if temperature variation factors such as environmental change and equipment deterioration occur during a long-term equipment operation.	Standard control type models
Notifying the Update of Tuning Parameters	This function notifies that the Temperature Control Unit has automatically updated the parameters by tuning.	All models
Control Output	Control Period	This function sets the period when the ON/OFF time ratio is changed for voltage output (for driving SSR) in time- proportional operation.	Models with voltage output (for driving SSR)
Minimum Output ON/OFF Band	This function specifies the minimum ON/OFF bands for the heating side control output or the cooling side control output. This function can be used to prevent deterioration of mechanical relays when mechanical relays are used in the actuators connected to the output terminals.	Models with voltage output (for driving SSR)
Output Signal Range Setting	This function sets the output signal range of the linear current output. You can specify 4 to 20 mA or 0 to 20 mA.	Models with linear current output
Limiting Simultaneous Outputs	This function limits the number of outputs that turn ON simultaneously by shifting the control period of each output and restricting the upper limit of the manipulated variable. You can set a delay between outputs, which allows delays in output device operation that can occur when outputs are switched.	Standard control type models with voltage output (for driving SSR)
Error Detection	Sensor Disconnection Detection	This function detects disconnections in temperature sensors. It also detects that the measured value of the temperature sensor is outside the input indication range.	All models
Heater Burnout Detection	This function detects heater burnouts. A heater burnout is detected if the control output is ON and the heater current is equal to or less than the heater burnout detection current.	Models with CT input
SSR Failure Detection	This function detects SSR failures. An SSR failure is detected if the control output is OFF and the leakage current is equal to or greater than the SSR failure detection current. An SSR failure is a failure that is caused by an SSR short-circuit.	Models with CT input
Temperature alarms	Function for detecting a deviation or an error in the measured value as an alarm. Alarm operation corresponding to the use can be performed by selecting “Alarm type”.	All models
LBA (Loop Burnout Alarm)	Function for detecting, as an alarm, the error location in the control loop when there is no change in the measured value while a control deviation equal to or more than the threshold value exists between the set point and the measured value.	All models

Unit name	Temperature Control Unit (2-Channel Type)	Model	NX-TC2405
Number of Channels	2 channels	Control type	Standard control
Number of points per channel	• Temperature input: 1 point per channel (2 points per unit) • CT Input: 1 point per channel (2 points per unit) • Control Output: 1 point per channel (2 points per unit)	External connection terminal	Screwless clamping terminal block (16 terminals)
I/O refreshing method	Free-Run Refreshing
Indicators	TS indicator and output indicators	CT Input section	CT current input range	0 to 0.125 A
Input resistance	Approx. 2.7 Ω
Connectable CTs	E54-CT1, E54-CT3, E54-CT1L, and E54-CT3L
Maximum heater current	50 A AC
Resolution	0.1 A
Overall accuracy (25°C)	±5% (full scale) ±1 digit
Influence of temperature (0 to 55°C)	±2% (full scale) ±1 digit
Conversion time	50 ms/Unit
Control Output section	Control output type and number of control outputs per channel	Voltage output for driving SSR, 1 point per channel
Internal I/O common	PNP
Control Period	0.1, 0.2, 0.5, 1 to 99s
Manipulated variable	-5 to +105%
Sensor Input section	Temperature sensor *1	• Thermocouple input: K, J, T, E, L, U, N, R, S, B, C/W, PL II • Platinum resistance thermometer input: Pt100 (three-wire), JPt100 (three- wire)	Resolution	--
Input conversion range	±20°C of the input range *2	Rated Voltage	24 VDC
Absolute maximum rating	±130 mV	Operating Load Voltage Range	15 to 28.8 VDC
Input impedance	20 kΩ min.	Maximum load current	21 mA/point, 42 mA/Unit
Resolution	0.1°C max.	Maximum Inrush Current	0.3 A/point max., 10 ms max.
Reference accuracy	*3	Allowable load resistance	--
Temperature coefficient	*3	Leakage current	0.1 mA max.
Cold junction compensation error	±1.2°C 3 4	Residual voltage	1.5 V max.
Input disconnection detection current	Approx. 0.1 uA	Load Short- circuit Protection	Provided
Input detection current	0.25 mA	Output range	--
Effect of conductor resistance	• Thermocouple input: 0.1°C/ Ω (100 Ω or less per conductor) • Platinum resistance thermometer input: 0.06°C/ Ω (20 Ω or less per conductor)	Overall accuracy (25°C)	--
Warm-up period	30 minutes	Influence of temperature (0 to 55°C)	--
Conversion time	50 ms/Unit
Dimensions	12 mm (W) ×100 mm (H) × 71 mm (D)	Isolation method	• Between sensor inputs and internal circuitry: Power = Transformer, Signal = Digital isolator • Between inputs: Power = Transformer, Signal = Digital isolator • No isolation between internal circuits and CT inputs • Between control output and internal circuit: Photocoupler • No isolation between control outputs
Insulation resistance	20 MΩ min. between isolated circuits (at 100 VDC)	Dielectric strength	510 VAC between isolated circuits for 1 minute with a leakage current of 5 mA max.
I/O power supply method	Supplied from the NX bus.	Current capacity of I/O power supply terminals	IOG: 0.1 A max. per terminal
NX Unit power consumption	• Connected to a CPU Unit 1.45 W max. • Connected to Communications Coupler Unit 1.10 W max.	Current consumption from I/O power supply	20 mA max.
Weight	75 g max.
Circuit configuration
Installation orientation and restrictions	Mounting orientation: • Connect to CPU unit Front mounting orientation is possible • Connect to communication coupler unit Six orientations are possible Limitation: The cold junction compensation error is limited by the mounting orientation and the type or power consumption of the adjacent unit. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection diagram

Unit name	Temperature Control Unit (2-Channel Type)	Model	NX-TC2406
Number of Channels	2 channels	Control type	Standard control
Number of points per channel	• Temperature input: 1 point per channel (2 points per unit) • CT input: None • Control Output: 1 point per channel (2 points per unit)	External connection terminal	Screwless clamping terminal block (16 terminals)
I/O refreshing method	Free-Run Refreshing
Indicators	TS indicator and output indicators	CT Input section	CT current input range	--
Input resistance	--
Connectable CTs	--
Maximum heater current	--
Resolution	--
Overall accuracy (25°C)	--
Influence of temperature (0 to 55°C)	--
Conversion time	--
Control Output section	Control output type and number of control outputs per channel	Voltage output for driving SSR, 1 point per channel
Internal I/O common	PNP
Control Period	0.1, 0.2, 0.5, 1 to 99s
Manipulated variable	-5 to +105%
Sensor Input section	Temperature sensor *1	• Thermocouple input: K, J, T, E, L, U, N, R, S, B, C/W, PL II • Platinum resistance thermometer input: Pt100 (three-wire), JPt100 (three- wire)	Resolution	--
Input conversion range	±20°C of the input range *2	Rated Voltage	24 VDC
Absolute maximum rating	±130 mV	Operating Load Voltage Range	15 to 28.8 VDC
Input impedance	20 kΩ min.	Maximum load current	21 mA/point, 42 mA/Unit
Resolution	0.1°C max.	Maximum Inrush Current	0.3 A/point max., 10 ms max.
Reference accuracy	*3	Allowable load resistance	--
Temperature coefficient	*3	Leakage current	0.1 mA max.
Cold junction compensation error	±1.2°C 3 4	Residual voltage	1.5 V max.
Input disconnection detection current	Approx. 0.1 uA	Load Short- circuit Protection	Provided
Input detection current	0.25 mA	Output range	--
Effect of conductor resistance	• Thermocouple input: 0.1°C/ Ω (100 Ω or less per conductor) • Platinum resistance thermometer input: 0.06°C/ Ω (20 Ω or less per conductor)	Overall accuracy (25°C)	--
Warm-up period	30 minutes	Influence of temperature (0 to 55°C)	--
Conversion time	50 ms/Unit
Dimensions	12 mm (W) ×100 mm (H) × 71 mm (D)	Isolation method	• Between sensor inputs and internal circuitry: Power = Transformer, Signal = Digital isolator • Between inputs: Power = Transformer, Signal = Digital isolator • Between control output and internal circuit: Photocoupler • No isolation between control outputs
Insulation resistance	20 MΩ min. between isolated circuits (at 100 VDC)	Dielectric strength	510 VAC between isolated circuits for 1 minute with a leakage current of 5 mA max.
I/O power supply method	Supplied from the NX bus.	Current capacity of I/O power supply terminals	IOG: 0.1 A max. per terminal
NX Unit power consumption	• Connected to a CPU Unit 1.25 W max. • Connected to Communications Coupler Unit 0.95 W max.	Current consumption from I/O power supply	20 mA max.
Weight	75 g max.
Circuit configuration
Installation orientation and restrictions	Mounting orientation: • Connect to CPU unit Front mounting orientation is possible • Connect to communication coupler unit Six orientations are possible Limitation: The cold junction compensation error is limited by the mounting orientation and the type or power consumption of the adjacent unit. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection diagram

Unit name	Temperature Control Unit (2-Channel Type)	Model	NX-TC2407
Number of Channels	2 channels	Control type	Heating and cooling control
Number of points per channel	• Temperature input: 1 point per channel (2 points per unit) • CT input: None • Control Output: 2 point per channel (4 points per unit)	External connection terminal	Screwless clamping terminal block (16 terminals)
I/O refreshing method	Free-Run Refreshing
Indicators	TS indicator and output indicators	CT Input section	CT current input range	--
Input resistance	--
Connectable CTs	--
Maximum heater current	--
Resolution	--
Overall accuracy (25°C)	--
Influence of temperature (0 to 55°C)	--
Conversion time	--
Control Output section	Control output type and number of control outputs per channel	Voltage output for driving SSR, 2 point per channel
Internal I/O common	PNP
Control Period	0.1, 0.2, 0.5, 1 to 99s
Manipulated variable	• Heating: 0 to +105% • Cooling: 0 to +105%
Sensor Input section	Temperature sensor *1	Thermocouple input: K, J, T, E, L, U, N, R, S, B, C/W, PL II Platinum resistance thermometer input: Pt100 (three-wire), JPt100 (three- wire)	Resolution	--
Input conversion range	±20°C of the input range *2	Rated Voltage	24 VDC
Absolute maximum rating	±130 mV	Operating Load Voltage Range	15 to 28.8 VDC
Input impedance	20 kΩ min.	Maximum load current	21 mA/point, 84 mA/Unit
Resolution	0.1°C max.	Maximum Inrush Current	0.3 A/point max., 10 ms max.
Reference accuracy	*3	Allowable load resistance	--
Temperature coefficient	*3	Leakage current	0.1 mA max.
Cold junction compensation error	±1.2°C 3 4	Residual voltage	1.5 V max.
Input disconnection detection current	Approx. 0.1 uA	Load Short- circuit Protection	Provided
Input detection current	0.25 mA	Output range	--
Effect of conductor resistance	• Thermocouple input: 0.1°C/ Ω (100 Ω or less per conductor) • Platinum resistance thermometer input: 0.06°C/ Ω (20 Ω or less per conductor)	Overall accuracy (25°C)	--
Warm-up period	30 minutes	Influence of temperature (0 to 55°C)	--
Conversion time	50 ms/Unit
Dimensions	12 mm (W) ×100 mm (H) × 71 mm (D)	Isolation method	• Between sensor inputs and internal circuitry: Power = Transformer, Signal = Digital isolator • Between inputs: Power = Transformer, Signal = Digital isolator • Between control output and internal circuit: Photocoupler • No isolation between control outputs
Insulation resistance	20 MΩ min. between isolated circuits (at 100 VDC)	Dielectric strength	510 VAC between isolated circuits for 1 minute with a leakage current of 5 mA max.
I/O power supply method	Supplied from the NX bus.	Current capacity of I/O power supply terminals	IOG: 0.1 A max. per terminal
NX Unit power consumption	• Connected to a CPU Unit 1.30 W max. • Connected to Communications Coupler Unit 1.00 W max.	Current consumption from I/O power supply	20 mA max.
Weight	75 g max.
Circuit configuration
Installation orientation and restrictions	Mounting orientation: • Connect to CPU unit Front mounting orientation is possible • Connect to communication coupler unit Six orientations are possible Limitation: The cold junction compensation error is limited by the mounting orientation and the type or power consumption of the adjacent unit. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection diagram

Unit name	Temperature Control Unit (2-Channel Type)	Model	NX-TC2408
Number of Channels	2 channels	Control type	Standard control
Number of points per channel	• Temperature input: 1 point per channel (2 points per unit) • CT input: None • Control Output: 1 point per channel (2 points per unit)	External connection terminal	Screwless clamping terminal block (16 terminals)
I/O refreshing method	Free-Run Refreshing
Indicators	TS indicator and output indicators	CT Input section	CT current input range	--
Input resistance	--
Connectable CTs	--
Maximum heater current	--
Resolution	--
Overall accuracy (25°C)	--
Influence of temperature (0 to 55°C)	--
Conversion time	--
Control Output section	Control output type and number of control outputs per channel	Linear current output, one output per channel
Internal I/O common	--
Control Period	--
Manipulated variable	-5 to +105%
Sensor Input section	Temperature sensor *1	• Thermocouple input: K, J, T, E, L, U, N, R, S, B, C/W, PL II • Platinum resistance thermometer input: Pt100 (three-wire), JPt100 (three- wire)	Resolution	1/10,000
Input conversion range	±20°C of the input range *2	Rated Voltage	24 VDC
Absolute maximum rating	±130 mV	Operating Load Voltage Range	15 to 28.8 VDC
Input impedance	20 kΩ min.	Maximum load current	--
Resolution	0.1°C max.	Maximum Inrush Current	--
Reference accuracy	*3	Allowable load resistance	350 Ω or less, or greater than 350 Ω but no more than 600 Ω *4
Temperature coefficient	*3	Leakage current	--
Cold junction compensation error	±1.2°C 3 5	Residual voltage	--
Input disconnection detection current	Approx. 0.1 uA	Load Short- circuit Protection	--
Input detection current	0.25 mA	Output range	0 to 20 mA, 4 to 20 mA
Effect of conductor resistance	• Thermocouple input: 0.1°C/ Ω (100 Ω or less per conductor) • Platinum resistance thermometer input: 0.06°C/ Ω (20 Ω or less per conductor)	Overall accuracy (25°C)	±0.3% of full scale, but 1% of full scale at 0 to 4 mA of 0 to 20 mA range
Warm-up period	30 minutes	Influence of temperature (0 to 55°C)	±0.3% (full scale)
Conversion time	50 ms/Unit
Dimensions	12 mm (W) ×100 mm (H) × 71 mm (D)	Isolation method	• Between sensor inputs and internal circuitry: Power = Transformer, Signal = Digital isolator • Between inputs: Power = Transformer, Signal = Digital isolator • Between control output and internal circuit: Photocoupler • No isolation between control outputs
Insulation resistance	20 MΩ min. between isolated circuits (at 100 VDC)	Dielectric strength	510 VAC between isolated circuits for 1 minute with a leakage current of 5 mA max.
I/O power supply method	Supplied from the NX bus.	Current capacity of I/O power supply terminals	IOG: 0.1 A max. per terminal
NX Unit power consumption	• Connected to a CPU Unit 1.25 W max. • Connected to Communications Coupler Unit 0.95 W max.	Current consumption from I/O power supply	20 mA max.
Weight	75 g max.
Circuit configuration
Installation orientation and restrictions	Mounting orientation: • Connect to CPU unit Front mounting orientation is possible • Connect to communication coupler unit Six orientations are possible Limitation: The cold junction compensation error is limited by the mounting orientation and the type or power consumption of the adjacent unit. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection diagram

Unit name	Temperature Control Unit (4-Channel Type)	Model	NX-TC3405
Number of Channels	4 channels	Control type	Standard control
Number of points per channel	• Temperature input: 1 point per channel (4 points per unit) • CT Input: 1 point per channel (4 points per unit) • Control Output: 1 point per channel (4 points per unit)	External connection terminal	Screwless clamping terminal block (16 terminals x 2)
I/O refreshing method	Free-Run Refreshing
Indicators	TS indicator and output indicators	CT Input section	CT current input range	0 to 0.125 A
Input resistance	Approx. 2.7 Ω
Connectable CTs	E54-CT1, E54-CT3, E54-CT1L, and E54-CT3L
Maximum heater current	50 A AC
Resolution	0.1 A
Overall accuracy (25°C)	±5% (full scale) ±1 digit
Influence of temperature (0 to 55°C)	±2% (full scale) ±1 digit
Conversion time	50 ms/Unit
Control Output section	Control output type and number of control outputs per channel	Voltage output for driving SSR, 1 point per channel
Internal I/O common	PNP
Control Period	0.1, 0.2, 0.5, 1 to 99s
Manipulated variable	-5 to +105%
Sensor Input section	Temperature sensor *1	• Thermocouple input: K, J, T, E, L, U, N, R, S, B, C/W, PL II • Platinum resistance thermometer input: Pt100 (three-wire), JPt100 (three- wire)	Resolution	--
Input conversion range	±20°C of the input range *2	Rated Voltage	24 VDC
Absolute maximum rating	±130 mV	Operating Load Voltage Range	15 to 28.8 VDC
Input impedance	20 kΩ min.	Maximum load current	21 mA/point, 84 mA/Unit
Resolution	0.1°C max.	Maximum Inrush Current	0.3 A/point max., 10 ms max.
Reference accuracy	*3	Allowable load resistance	--
Temperature coefficient	*3	Leakage current	0.1 mA max.
Cold junction compensation error	±1.2°C 3 4	Residual voltage	1.5 V max.
Input disconnection detection current	Approx. 0.1 uA	Load Short- circuit Protection	Provided
Input detection current	0.25 mA	Output range	--
Effect of conductor resistance	• Thermocouple input: 0.1°C/ Ω (100 Ω or less per conductor) • Platinum resistance thermometer input: 0.06°C/ Ω (20 Ω or less per conductor)	Overall accuracy (25°C)	--
Warm-up period	30 minutes	Influence of temperature (0 to 55°C)	--
Conversion time	50 ms/Unit
Dimensions	24 mm (W) ×100 mm (H) × 71 mm (D)	Isolation method	• Between sensor inputs and internal circuitry: Power = Transformer, Signal = Digital isolator • Between inputs: Power = Transformer, Signal = Digital isolator • No isolation between internal circuits and CT inputs • Between control output and internal circuit: Photocoupler • No isolation between control outputs
Insulation resistance	20 MΩ min. between isolated circuits (at 100 VDC)	Dielectric strength	510 VAC between isolated circuits for 1 minute with a leakage current of 5 mA max.
I/O power supply method	Supplied from the NX bus.	Current capacity of I/O power supply terminals	IOG: 0.1 A max. per terminal
NX Unit power consumption	• Connected to a CPU Unit 1.80 W max. • Connected to Communications Coupler Unit 1.35 W max.	Current consumption from I/O power supply	20 mA max.
Weight	140 g max.
Circuit configuration
Installation orientation and restrictions	Mounting orientation: • Connect to CPU unit Front mounting orientation is possible • Connect to communication coupler unit Six orientations are possible Limitation: The cold junction compensation error is limited by the mounting orientation and the type or power consumption of the adjacent unit. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection diagram

Unit name	Temperature Control Unit (4-Channel Type)	Model	NX-TC3406
Number of Channels	4 channels	Control type	Standard control
Number of points per channel	• Temperature input: 1 point per channel (4 points per unit) • CT input: None • Control Output: 1 point per channel (4 points per unit)	External connection terminal	Screwless clamping terminal block (16 terminals x 2)
I/O refreshing method	Free-Run Refreshing
Indicators	TS indicator and output indicators	CT Input section	CT current input range	--
Input resistance	--
Connectable CTs	--
Maximum heater current	--
Resolution	--
Overall accuracy (25°C)	--
Influence of temperature (0 to 55°C)	--
Conversion time	--
Control Output section	Control output type and number of control outputs per channel	Voltage output for driving SSR, 1 point per channel
Internal I/O common	PNP
Control Period	0.1, 0.2, 0.5, 1 to 99s
Manipulated variable	-5 to +105%
Sensor Input section	Temperature sensor *1	• Thermocouple input: K, J, T, E, L, U, N, R, S, B, C/W, PL II • Platinum resistance thermometer input: Pt100 (three-wire), JPt100 (three- wire)	Resolution	--
Input conversion range	±20°C of the input range *2	Rated Voltage	24 VDC
Absolute maximum rating	±130 mV	Operating Load Voltage Range	15 to 28.8 VDC
Input impedance	20 kΩ min.	Maximum load current	21 mA/point, 84 mA/Unit
Resolution	0.1°C max.	Maximum Inrush Current	0.3 A/point max., 10 ms max.
Reference accuracy	*3	Allowable load resistance	--
Temperature coefficient	*3	Leakage current	0.1 mA max.
Cold junction compensation error	±1.2°C 3 4	Residual voltage	1.5 V max.
Input disconnection detection current	Approx. 0.1 uA	Load Short- circuit Protection	Provided
Input detection current	0.25 mA	Output range	--
Effect of conductor resistance	• Thermocouple input: 0.1°C/ Ω (100 Ω or less per conductor) • Platinum resistance thermometer input: 0.06°C/ Ω (20 Ω or less per conductor)	Overall accuracy (25°C)	--
Warm-up period	30 minutes	Influence of temperature (0 to 55°C)	--
Conversion time	50 ms/Unit
Dimensions	24 mm (W) ×100 mm (H) × 71 mm (D)	Isolation method	• Between sensor inputs and internal circuitry: Power = Transformer, Signal = Digital isolator • Between inputs: Power = Transformer, Signal = Digital isolator • Between control output and internal circuit: Photocoupler • No isolation between control outputs
Insulation resistance	20 MΩ min. between isolated circuits (at 100 VDC)	Dielectric strength	510 VAC between isolated circuits for 1 minute with a leakage current of 5 mA max.
I/O power supply method	Supplied from the NX bus.	Current capacity of I/O power supply terminals	IOG: 0.1 A max. per terminal
NX Unit power consumption	• Connected to a CPU Unit 1.70 W max. • Connected to Communications Coupler Unit 1.25 W max.	Current consumption from I/O power supply	20 mA max.
Weight	140 g max.
Circuit configuration
Installation orientation and restrictions	Mounting orientation: • Connect to CPU unit Front mounting orientation is possible • Connect to communication coupler unit Six orientations are possible Limitation: The cold junction compensation error is limited by the mounting orientation and the type or power consumption of the adjacent unit. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection diagram

Unit name	Temperature Control Unit (4-Channel Type)	Model	NX-TC3407
Number of Channels	4 channels	Control type	heating and cooling control
Number of points per channel	• Temperature input: 1 point per channel (4 points per unit) • CT input: None • Control Output: 2 point per channel (8 points per unit)	External connection terminal	Screwless clamping terminal block (16 terminals x 2)
I/O refreshing method	Free-Run Refreshing
Indicators	TS indicator and output indicators	CT Input section	CT current input range	--
Input resistance	--
Connectable CTs	--
Maximum heater current	--
Resolution	--
Overall accuracy (25°C)	--
Influence of temperature (0 to 55°C)	--
Conversion time	--
Control Output section	Control output type and number of control outputs per channel	Voltage output for driving SSR, 2 point per channel
Internal I/O common	PNP
Control Period	0.1, 0.2, 0.5, 1 to 99s
Manipulated variable	• Heating: 0 to +105% • Cooling: 0 to +105%
Sensor Input section	Temperature sensor *1	• Thermocouple input: K, J, T, E, L, U, N, R, S, B, C/W, PL II • Platinum resistance thermometer input: Pt100 (three-wire), JPt100 (three- wire)	Resolution	--
Input conversion range	±20°C of input range *2	Rated Voltage	24 VDC
Absolute maximum rating	±130 mV	Operating Load Voltage Range	15 to 28.8 VDC
Input impedance	20 kΩ min.	Maximum load current	21 mA/point, 168 mA/Unit
Resolution	0.1°C max.	Maximum Inrush Current	0.3 A/point max., 10 ms max.
Reference accuracy	*3	Allowable load resistance	--
Temperature coefficient	*3	Leakage current	0.1 mA max.
Cold junction compensation error	±1.2°C 3 4	Residual voltage	1.5 V max.
Input disconnection detection current	Approx. 0.1 uA	Load Short- circuit Protection	Provided
Input detection current	0.25 mA	Output range	--
Effect of conductor resistance	• Thermocouple input: 0.1°C/ Ω (100 Ω or less per conductor) • Platinum resistance thermometer input: 0.06°C/ Ω (20 Ω or less per conductor)	Overall accuracy (25°C)	--
Warm-up period	30 minutes	Influence of temperature (0 to 55°C)	--
Conversion time	50 ms/Unit
Dimensions	24 mm (W) ×100 mm (H) × 71 mm (D)	Isolation method	• Between sensor inputs and internal circuitry: Power = Transformer, Signal = Digital isolator • Between inputs: Power = Transformer, Signal = Digital isolator • Between control output and internal circuit: Photocoupler • No isolation between control outputs
Insulation resistance	20 MΩ min. between isolated circuits (at 100 VDC)	Dielectric strength	510 VAC between isolated circuits for 1 minute with a leakage current of 5 mA max.
I/O power supply method	Supplied from the NX bus.	Current capacity of I/O power supply terminals	IOG: 0.1 A max. per terminal
NX Unit power consumption	• Connected to a CPU Unit 1.75 W max. • Connected to Communications Coupler Unit 1.30 W max.	Current consumption from I/O power supply	20 mA max.
Weight	140 g max.
Circuit configuration
Installation orientation and restrictions	Mounting orientation: • Connect to CPU unit Front mounting orientation is possible • Connect to communication coupler unit Six orientations are possible Limitation: The cold junction compensation error is limited by the mounting orientation and the type or power consumption of the adjacent unit. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection diagram

Unit name	Temperature Control Unit (4-Channel Type)	Model	NX-TC3408
Number of Channels	4 channels	Control type	Standard control
Number of points per channel	• Temperature input: 1 point per channel (4 points per unit) • CT input: None • Control Output: 1 point per channel (4 points per unit)	External connection terminal	Screwless clamping terminal block (16 terminals x 2)
I/O refreshing method	Free-Run Refreshing
Indicators	TS indicator and output indicators	CT Input section	CT current input range	--
Input resistance	--
Connectable CTs	--
Maximum heater current	--
Resolution	--
Overall accuracy (25°C)	--
Influence of temperature (0 to 55°C)	--
Conversion time	--
Control Output section	Control output type and number of control outputs per channel	Linear current output, one output per channel
Internal I/O common	--
Control Period	--
Manipulated variable	-5 to +105%
Sensor Input section	Temperature sensor *1	• Thermocouple input: K, J, T, E, L, U, N, R, S, B, C/W, PL II • Platinum resistance thermometer input: Pt100 (three-wire), JPt100 (three- wire)	Resolution	1/10,000
Input conversion range	±20°C of the input range *2	Rated Voltage	24 VDC
Absolute maximum rating	±130 mV	Operating Load Voltage Range	15 to 28.8 VDC
Input impedance	20 kΩ min.	Maximum load current	--
Resolution	0.1°C max.	Maximum Inrush Current	--
Reference accuracy	*3	Allowable load resistance	350 Ω or less, or greater than 350 Ω but no more than 600 Ω *4
Temperature coefficient	*3	Leakage current	--
Cold junction compensation error	±1.2°C 3 5	Residual voltage	--
Input disconnection detection current	Approx. 0.1 uA	Load Short- circuit Protection	--
Input detection current	0.25 mA	Output range	0 to 20 mA, 4 to 20 mA
Effect of conductor resistance	• Thermocouple input: 0.1°C/ Ω (100 Ω or less per conductor) • Platinum resistance thermometer input: 0.06°C/ Ω (20 Ω or less per conductor)	Overall accuracy (25°C)	±0.3% of full scale, but 1% of full scale at 0 to 4 mA of 0 to 20 mA range
Warm-up period	30 minutes	Influence of temperature (0 to 55°C)	±0.3% (full scale)
Conversion time	50 ms/Unit
Dimensions	24 mm (W) ×100 mm (H) × 71 mm (D)	Isolation method	• Between sensor inputs and internal circuitry: Power = Transformer, Signal = Digital isolator • Between inputs: Power = Transformer, Signal = Digital isolator • Between control output and internal circuit: Photocoupler • No isolation between control outputs
Insulation resistance	20 MΩ min. between isolated circuits (at 100 VDC)	Dielectric strength	510 VAC between isolated circuits for 1 minute with a leakage current of 5 mA max.
I/O power supply method	Supplied from the NX bus.	Current capacity of I/O power supply terminals	IOG: 0.1 A max. per terminal
NX Unit power consumption	• Connected to a CPU Unit 1.65 W max. • Connected to Communications Coupler Unit 1.25 W max.	Current consumption from I/O power supply	30 mA max.
Weight	140 g max.
Circuit configuration
Installation orientation and restrictions	Mounting orientation: • Connect to CPU unit Front mounting orientation is possible • Connect to communication coupler unit Six orientations are possible Limitation: The cold junction compensation error is limited by the mounting orientation and the type or power consumption of the adjacent unit. For details, refer to Cold Junction Compensation Error Specifications for Units That Take a Thermocouple Input Type.
Terminal connection diagram

*Setting name 1**	Display of support software	Description	Default	Setting range	Unit	Change application timing
Ch[] input type	Ch[] Input Type	Sets the input type of sensors connected to temperature input.	5: K -200 to 1300°C	*2	No	After unit restart

Set values	Input types	Input indication range	Remarks
Sensor	Input setting range
0	Pt100	-200 to 850°C/-300 to 1500°F	-220 to 870°C/-340 to 1540°F	Resistance thermometer
1	Pt100	-199.9 to 500.0°C/-199.9 to 900.0°F	-219.9 to 520.0°C/-239.9 to 940.0°F
2	Pt100	-0.0 to 100.0°C/0.0 to 210.0°F	-20.0 to 120.0°C/-40.0 to 250.0°F
3	JPt100	-199.9 to 500.0°C/-199.9 to 900.0°F	-219.9 to 520.0°C/-239.9 to 940.0°F
4	JPt100	-0.0 to 100.0°C/0.0 to 210.0°F	-20.0 to 120.0°C/-40.0 to 250.0°F
5	K	-200 to 1300°C/-300 to 2300°F	-220 to 1320°C/-340 to 2340°F	Thermocouple
6	K	-20.0 to 500.0°C/0.0 to 900.0°F	-40.0 to 520.0°C/-40.0 to 940.0°F
7	J	-100 to 850°C/-100.0 to 1500°F	-120 to 870°C/-140 to 1540°F
8	J	-20.0 to 400.0°C/0.0 to 750.0°F	-40.0 to 420.0°C/-40.0 to 790.0°F
9	T	-200 to 400°C/-300 to 700°F	-220 to 420°C/-340 to 740°F
10	T	-199.9 to 400.0°C/-199.9 to 700.0°F	-219.9 to 420.0°C/-239.9 to 740°F
11	E	-200 to 600°C/-300 to 1100°F	-220 to 620°C/-340 to 1140°F
12	L	-100 to 850°C/-100 to 1500°F	-120 to 870°C/-140 to 1540°F
13	U	-200 to 400°C/-300 to 700°F	-220 to 420°C/-340 to 740°F
14	U	-199.9 to 400.0°C/-199.9 to 700.0°F	-219.9 to 420.0°C/-239.9 to 740°F
15	N	-200 to 1300°C/-300 to 2300°F	-220 to 1320°C/-340 to 2340°F
16	R	0 to 1700°C/0 to 3000°F	-20 to 1720°C/-40 to 3040°F
17	S	0 to 1700°C/0 to 3000°F	-20 to 1720°C/-40 to 3040°F
18	B	0 to 1800°C/0 to 3200°F	-20 to 1820°C/-40 to 3240°F
19	C/W	0 to 2300°C/0 to 3200°F	-20 to 2320°C/-40 to 3240°F
20	PLII	0 to 1300°C/0 to 2300°F	-20 to 1320°C/-40 to 2340°F

Set values	Input type	Measurement temperature (°C)	Reference accuracy °C (%) *2	Temperature coefficient °C/°C 3 (ppm/°C 4)
Sensor	Temperature range (°C) *1
0	Pt100	-200 to 850	-200 to 300	±1.0 (±0.1%)	±0.1 (±100 ppm/°C)
300 to 700	±2.0 (±0.2%)	±0.2 (±200 ppm/°C)
700 to 850	±2.5 (±0.25%)	±0.25 (±250 ppm/°C)
1	Pt100	-199.9 to 500.0	-199.9 to 300.0	±0.8 (±0.12%)	±0.1 (±150 ppm/°C)
300.0 to 500.0	±0.8 (±0.12%)	±0.2 (±300 ppm/°C)
2	Pt100	0.0 to 100.0	0.0 to 100.0	±0.8 (±0.8%)	±0.1 (±1000 ppm/°C)
3	JPt100	-199.9 to 500.0	-199.9 to 300.0	±0.8 (±0.12%)	±0.1 (±150 ppm/°C)
300.0 to 500.0	±0.8 (±0.12%)	±0.2 (±300 ppm/°C)
4	JPt100	0.0 to 100.0	0.0 to 100.0	±0.8 (±0.8%)	±0.1 (±1000 ppm/°C)
5	K	-200 to 1300	-200 to -100	±1.5 (±0.1%)	±0.15 (±100 ppm/°C)
-100 to 400	±0.30 (±200 ppm/°C)
400 to 1300	±0.38 (±250 ppm/°C)
6	K	-20.0 to 500.0	-20.0 to 400.0	±1.0 (±0.2%)	±0.30 (±600 ppm/°C)
400.0 to 500.0	±0.38 (±760 ppm/°C)
7	J	-100 to 850	-100 to 400	±1.4 (±0.15%)	±0.14 (±150 ppm/°C)
400 to 850	±1.2 (±0.13%)	±0.28 (±300 ppm/°C)
8	J	-20.0 to 400.0	-20.0 to 400.0	±1.0 (±0.24%)	±0.14 (±350 ppm/°C)
9	T	-200 to 400	-200 to -100	±1.2 (±0.2%)	±0.30 (±500 ppm/°C)
-100 to 400	±0.12 (±200 ppm/°C)
10	T	-199.9 to 400.0	-199.9 to -100.0	±1.2 (±0.2%)	±0.30 (±500 ppm/°C)
-100.0 to 400.0	±0.12 (±200 ppm/°C)
11	E	-200 to 600	-200 to 400	±1.2 (±0.15%)	±0.12 (±150 ppm/°C)
400 to 600	±2.0 (±0.25%)	±0.24 (±300 ppm/°C)
12	L	-100 to 850	-100 to 300	±1.1 (±0.12%)	±0.11 (±120 ppm/°C)
300 to 700	±2.2 (±0.24%)	±0.22 (±240 ppm/°C)
700 to 850	±0.28 (±300 ppm/°C)
13	U	-200 to 400	-200 to 400	±1.2 (±0.2%)	±0.12 (±200 ppm/°C)
14	U	-199.9 to 400.0	-199.9 to 400.0	±1.2 (±0.2%)	±0.12 (±200 ppm/°C)
15	N	-200 to 1300	-200 to 400	±1.5 (±0.1%)	±0.30 (±200 ppm/°C)
400 to 1000
1000 to 1300	±0.38 (±250 ppm/°C)
16	R	0 to 1700	0 to 500	±1.75 (±0.11%)	±0.44 (±260 ppm/°C)
500 to 1200	±2.5 (±0.15%)
1200 to 1700
17	S	0 to 1700	0 to 1700	±2.5 (±0.15%)	±0.44 (±260 ppm/°C)
18	B	0 to 1800	0 to 400	Reference accuracy cannot be guaranteed	Reference accuracy cannot be guaranteed
400 to 1200	±3.6 (±0.2%)	±0.45 (±250 ppm/°C)
1200 to 1800	±5.0 (±0.28%)	±0.54 (±300 ppm/°C)
19	C/W	0 to 2300	0 to 300	±1.15 (±0.05%)	±0.46 (±200 ppm/°C)
300 to 800	±2.3 (±0.1%)
800 to 1500	±3.0 (±0.13%)
1500 to 2300	±0.691 (±300 ppm/°C)
20	PL II	0 to 1300	0 to 400	±1.3 (±0.1%)	±0.23 (±200 ppm/°C)
400 to 800	±2.0 (±0.15%)	±0.39 (±300 ppm/°C
800 to 1300	±0.65 (±500 ppm/°C)

Item	Description
Ambient temperature	30°C
Measured value	100°C
Thermocouple	K: -200 to 1300°C

Item	Description
Reference accuracy	-100 to 400°C: ±1.5°C
Temperature coefficient	-100 to 400°C: ±0.30°C/°C
Change in the ambient temperature	25°C -> 30°C 5 deg
Cold junction compensation error	±1.2°C

Input type and temperature range	Cold junction compensation error
T below -90°C	±3.0°C
J, E, K and N below -100°C
U, L and PLII
R and S below 200°C
B below 400°C	Not guaranteed
C/W	±3.0°C

Input type and temperature range	Cold junction compensation error
T below -90°C	±7.0°C
J, E, K and N below -100°C
U, L and PLII
R and S below 200°C
B below 400°C	Not guaranteed
C/W	±9.0°C

Input type and temperature range	Cold junction compensation error
T below -90°C	±3.0°C
J, E, K and N below -100°C
U, L and PLII
R and S below 200°C
B below 400°C	Not guaranteed
C/W	±3.0°C

Input type and temperature range	Cold junction compensation error
T below -90°C	±7.0°C
J, E, K and N below -100°C
U, L and PLII
R and S below 200°C
B below 400°C	Not guaranteed
C/W	±9.0°C

NX Unit	*Corresponding version 1**
Model	Unit Version	CPU Unit	Sysmac Studio
NX-TC2405	Ver.1.0	Ver. 1.13	Ver.1.21
Ver.1.1	Ver.1.22
NX-TC2406	Ver.1.0	Ver.1.21
Ver.1.1	Ver.1.22
NX-TC2407	Ver.1.0	Ver.1.21
Ver.1.1	Ver.1.22
NX-TC2408	Ver.1.0	Ver.1.21
Ver.1.1	Ver.1.22
NX-TC3405	Ver.1.0	Ver.1.21
Ver.1.1	Ver.1.22
NX-TC3406	Ver.1.0	Ver.1.21
Ver.1.1	Ver.1.22
NX-TC3407	Ver.1.0	Ver.1.21
Ver.1.1	Ver.1.22
NX-TC3408	Ver.1.0	Ver.1.21
Ver.1.1	Ver.1.22

NX Unit	*Corresponding version 1**
Model	Unit Version	EtherCAT Coupler Unit	CPU Unit or Industrial PC	Sysmac Studio
NX-TC2405	Ver.1.0	Ver.1.0 *2	Ver. 1.05	Ver. 1.21
Ver.1.1	Ver. 1.22
NX-TC2406	Ver.1.0	Ver. 1.21
Ver.1.1	Ver. 1.22
NX-TC2407	Ver.1.0	Ver. 1.21
Ver.1.1	Ver. 1.22
NX-TC2408	Ver.1.0	Ver. 1.21
Ver.1.1	Ver. 1.22
NX-TC3405	Ver.1.0	Ver. 1.21
Ver.1.1	Ver. 1.22
NX-TC3406	Ver.1.0	Ver. 1.21
Ver.1.1	Ver. 1.22
NX-TC3407	Ver.1.0	Ver. 1.21
Ver.1.1	Ver. 1.22
NX-TC3408	Ver.1.0	Ver. 1.21
Ver.1.1	Ver. 1.22

NX Unit	*Corresponding version1**
Model	Unit Version	Application with an NJ/NX/NY-series Controller *2	Application with an CS/CJ/CP-series PLC *3
EtherNet/IP Coupler Unit	CPU Unit or Industrial PC	Sysmac Studio	EtherNet/IP Coupler Unit	Sysmac Studio	NX-IO Configurator
NX-TC2405	Ver.1.0	Ver.1.2	Ver.1.14	Ver.1.21	Ver. 1.2	Ver.1.21	Ver.1.11
Ver.1.1	Ver.1.22	Ver.1.22	Ver.1.12
NX-TC2406	Ver.1.0	Ver.1.21	Ver.1.21	Ver.1.11
Ver.1.1	Ver.1.22	Ver.1.22	Ver.1.12
NX-TC2407	Ver.1.0	Ver.1.21	Ver.1.21	Ver.1.11
Ver.1.1	Ver.1.22	Ver.1.22	Ver.1.12
NX-TC2408	Ver.1.0	Ver.1.21	Ver.1.21	Ver.1.11
Ver.1.1	Ver.1.22	Ver.1.22	Ver.1.12
NX-TC3405	Ver.1.0	Ver.1.21	Ver.1.21	Ver.1.11
Ver.1.1	Ver.1.22	Ver.1.22	Ver.1.12
NX-TC3406	Ver.1.0	Ver.1.21	Ver.1.21	Ver.1.11
Ver.1.1	Ver.1.22	Ver.1.22	Ver.1.12
NX-TC3407	Ver.1.0	Ver.1.21	Ver.1.21	Ver.1.11
Ver.1.1	Ver.1.22	Ver.1.22	Ver.1.12
NX-TC3408	Ver.1.0	Ver.1.21	Ver.1.21	Ver.1.11
Ver.1.1	Ver.1.22	Ver.1.22	Ver.1.12

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.
*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.
Catalog Name	Catalog Number [size]	Last Update
NX-TC Data Sheet	H229-E1-02 [4506KB]	Jan 07, 201920190107	NX-TC Data Sheet
E5[]D/NX-TC Catalog	H222-E1-03 [3882KB]	Jan 07, 201920190107	E5[]D/NX-TC Catalog
NX-series I/O System Catalog	R183-E1-09 [6683KB]	Nov 01, 201820181101	NX-series I/O System Catalog

Unit type	Product name	Specification	Model
Num- ber of chan- nels	Input type	Out- put	Output capac- ity	CT Input ca- pacity	Con- trol type	Con- ver- sion time	I/O re- freshing method
NX Series Temper- ature Control Unit	Temper- ature Control Unit 2Ch type	2 Ch	Multi- input (Therm- ocouple and Resistance thermom- eter)	Voltage output (for driving SSR)	2 points	2 points	Standard Control	50 m sec	Free- Run refreshing	NX-TC2405
None	Standard Control	NX-TC2406
Voltage output (for driving SSR)	4 points	None	Heating and Cooling Control	NX-TC2407
Linear current output	2 points	None	Standard Control	NX-TC2408
Temper- ature Control Unit 4Ch type	4 Ch	Voltage output (for driving SSR)	4 points	4 points	Standard Control	NX-TC3405
None	Standard Control	NX-TC3406
Voltage output (for driving SSR)	8 points	None	Heating and Cooling Control	NX-TC3407
Linear current output	4 points	None	Standard Control	NX-TC3408

Product name	Specification	Model
Unit/Terminal Block Coding Pins	Pins for 10 Units (30 terminal block pins and 30 Unit pins)	NX-AUX02

Product name	Specification	Model
Current Transformer (CT)	Hole diameter: 5.8 mm	E54-CT1
Hole diameter: 5.8 mm	E54-CT1L *
Hole diameter: 12.0 mm	E54-CT3
Hole diameter: 12.0 mm	E54-CT3L *

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