Make the replacement of your 48mm square temperature controller smoother. | LT23B

Digital Indicating Controller LT23B

Make the replacement of 48mm square temperature controllers smoother.

Chino's compact 48 x 48 mm controller maintains LT23A compatibility while enhancing readability, operation, and PLC connectivity.

Sites where the LT23B is suitable
  • I want to replace the existing LT23A.
  • I want to minimize panel modifications and wiring changes.
  • I want to make display easier to read.
  • I want to streamline the setup and maintenance of multiple devices.
  • I want to connect the PLC and the temperature controller.
Do you have any of these challenges?

When replacing temperature controllers, what concerns on-site personnel is "ease of replacement" and "ease of use."

When selecting a temperature controller, simply having many functions is not enough. It's also important that it fits into existing control panels, is easy for operators to read, and is easy to set up and maintain.

I want to replace the existing temperature controller, but I want to avoid modifying the control panel.
The old display is difficult to read, and checking the status takes time.
We want to reduce operation errors by on-site workers.
I want to streamline the setup and maintenance of multiple devices.
I want to handle temperature data in conjunction with a PLC.
We also want to support heating/cooling control.
Three main benefits

What can be solved with LT23B

1

Easy to upgrade from LT23A

The LT23B is a compact 48 x 48 mm controller designed with compatibility with the previous model, the LT23A, in mind. terminal arrangement is also the same as the LT23A, configuration easy to replace existing equipment.

Furthermore, the use of loader software allows for the transfer of settings from the LT23A. This enables the updating and enhancement of temperature controller functionality while utilizing existing control panels.

2

Easy to see and operation on-site.

The measured PV is 15.4mm with a high-brightness white display. Despite its 48mm square size, it is designed to ensure easy visibility in the field.

display level of the settings items can be selected from multi-function settings, standard settings, and simple settings. Furthermore, assigning frequently used functions to the FUNC key improves operation in the field.

3

Streamline configuration and maintenance through PLC/PC integration.

The RS-485-enabled specifications supports PLC link communication. This allows you to write PLC internal data to the LT23B and write LT23B data to the PLC.

Using dedicated loader software, you can read and write parameter and control status from your PC. This streamlines the setup and maintenance of multiple units.

Other main features

Despite its compact size, it is equipped with features that are easy to use on site.

High performance type PID

This system helps to quickly resolve hunting (fishing) and shorten the time required for settling down.

50ms sampling

You can select the input sampling period from 50, 100, 300, and 500 ms.

2 system control output

With option, heating/cooling control is also available.

Abundant measurement inputs

It supports thermocouples, resistance thermometer, and DC voltage / current.

Event Output

It handles alarms, heater disconnection, current, heater short circuits, and more.

Front IP66

It provides front protection when the board is installed.

Points to check before implementation

Let's also check the points to note regarding the LT23B.

The LT23B is a temperature controller that is easy to use for on-site replacements, but prior confirmation is necessary depending on the application.

1. Ethernet-based communication is not directly supported.

The system is configuration for communication using RS-485, Modbus, and PLC link communication. If Ethernet or cloud connectivity is required, please check configuration including the PLC and communication converter.

2. A dedicated loader cable is required for PC setup.

If you are using the loader software, a dedicated USB loader cable is required. For deployments involving multiple units or for maintenance purposes, it's advisable to have one prepared as well.

3. Input specifications require model selection.

Thermocouples, resistance thermometer, and DC voltage / current are selected according to their intended use. For replacement of existing equipment or spare parts management, it is important to check the current input specifications.

Recommended uses

I'm casually in a situation like this.

Replacing existing LT23A

This is suitable for facilities that want to replace their temperature controllers while minimizing panel modifications and wiring changes.

small heating device

High-performance PID and 50ms sampling help stabilize temperature control.

Packaging machine/molding machine

It can be used for multi-zone temperature management, such as heater control and seal temperature control.

Testing equipment and evaluation equipment

Setup and adjustment tasks can be streamlined by configuring and monitoring from a PC.

heating/cooling control

option The two regulated outputs of the control allow for a combination of heating and cooling.

Small to medium-sized devices that integrate with PLCs

With RS-485 specifications, it supports PLC link communication and is configuration for easy integration into equipment control panels.

FAQ

FAQ

Can it be used as a direct replacement for the LT23A?
terminal The array is the same as that of LT23A. It also supports setting porting by loader software. However, please check the existing model, input/output specifications, option configuration for actual replacement.
Can it be connected to a PLC?
It features RS-485 specifications and supports PLC link communication. It is intended for use with Mitsubishi, Omron, Keyence, and general-purpose Modbus/RTU devices.
Does it support Ethernet and Modbus TCP?
The main unit communicates via RS-485. If Ethernet communication is required, please consider configuration that includes a PLC or communication converter.
Can I configure this from my PC?
The dedicated loader software allows for reading and parameter and monitoring control status. However, a dedicated USB loader cable is required.
Can it be used for heating/cooling control?
By using option adjustable output 2, heating/cooling control can be achieved. Please check the output specifications when selecting the model.
What kind of work environment is it suitable for?
This is suitable for replacing existing LT23A systems, and for small to medium-sized equipment such as small heating devices, packaging machines, molding machines, testing equipment, heating/cooling control, and PLC integration.

I need advice on replacing the LT23B and selecting a suitable replacement model.

Please consult with us regarding your specific needs, including upgrading from existing equipment, PLC integration, heating/cooling control, and selection of input/output specifications.

If you have any problems with temperature control,
 please feel free to contact us.

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