What is a controller?
A controller is control device that compares a measured value with a target value and outputs to equipment to bring it closer to the target value. In temperature control, control heaters, cooling devices, etc., based on measurements from a temperature sensor.
Furthermore, some models are used not only control but also for display measured values and set values, alarm output, transmission signals, and communication.
If you would like to learn more about the mechanism of controllers, PID control, and how to choose one, please see "How Controllers Work and How to Choose One".
Choosing a controller
The appropriate controller model varies depending on the object control, the operating method, the installation space, and the required inputs, outputs, and functions. First, confirm the control method, and then select the size, inputs/ control outputs, and required functions.
1. Choose from control methods.
Typical control methods include "constant value control," which maintains a constant target value, and "program control," which control according to pre-set conditions.
Constant value control
It is suitable for control that maintains a set target value at a constant level.
Program control
This is suitable for control conditions according to pre-set parameters such as time and temperature.
2. Choose by size
Choose the size of the controller to match the mounting space on control panel or equipment. Common panel-mount sizes include W48×H48mm, W48×H96mm, and W96×H96mm.
3. Select from inputs and control outputs.
Check the input and control output specifications to match the input signals from the temperature sensor or other connected devices, and operation terminals such as heaters and cooling devices.
The main control outputs include on/off pulse type, on-off servo type, current output type, SSR drive pulse type, and voltage output type. The supported output method and number of outputs vary depending on the model.
4. Choose based on the functions you need.
In addition to control outputs, we also verify functions necessary for monitoring and integration with high-order systems, such as alarm outputs, transmission signal outputs, and communication interface.
If you are having trouble selecting a product, please contact us for assistance.
Select a product by specifications
Digital indicating controller
| DB1000 |
DB2000 |
DB630 |
DB650 |
DB670 |
|
|
|
|
|
■ Accuracy ratings
+/- 0.1% of measurement range +/- 1digit |
■ Adjustable Output
4-20mA
On/Off pulse continuity signal
On/Off pulse voltage signal
on-off servo Continuity Signal
0-10V |
■ Alarm function
4 points (relay output) |
■ Alarm function
2 points (relay output, option) |
■ サイズ
W96 x H96 x D120mm
|
■ サイズ
W48 x H48 x D80mm
|
■ サイズ
W48 x H96 x D65mm
|
■ サイズ
W96 x H96 x D65mm
|
| LT23B |
LT35A |
LT37A |
LT45A |
LT47A |
|
|
|
|
|
■ Accuracy ratings
±0.3%FS±1digit
(Thermocouple)
±0.2%FS±1 digit
(resistance thermometer, DC voltage / current) |
■ Accuracy ratings
+/- 0.2% of measurement range +/- 1digit |
■ Accuracy ratings
+/- 0.1% of measurement range +/- 1digit |
■ Control Output
4-20mA, 0-20mA
On/Off pulse output
SSR drive pulse output |
■ Adjustable Output
4-20mA, 0-20mA
On/Off pulse output
SSR drive pulse output
on-off servo Output
1-5V, 0-5V, 0-10V |
■ Event Output
3 points (common contact),
2 points (independent contact) |
■ Alarm function
3 points (relay output, COM common) |
■ サイズ
W48 x H48 x D65mm
|
■ サイズ
W48 x H96 x D65mm
|
■ サイズ
W96 x H96 x D65mm
|
■ サイズ
W48 x H96 x D65mm
|
■ サイズ
W96 x H96 x D65mm
|
Program Controller
| KP1000 |
KP2000 |
DP1000G ( Japan Only) |
DP2000G ( Japan Only) |
|
|
|
|
|
■ Accuracy ratings
+/- 0.1% of measurement range +/- 1digit |
■ Adjustable Output
4-20mA
On/Off pulse continuity signal
On/Off pulse voltage signal
on-off servo Continuity Signal
0-10V |
■ Adjustable Output
4-20mA, 1-5mA
On/Off pulse continuity signal
On/Off pulse voltage signal
on-off servo Continuity Signal
0-10V |
■ Alarm function
4 points (relay output) |
■ サイズ
W96 x H96 x D120mm
|
■ サイズ
W144 x H144 x D233mm
|
