A temperature controller Pid is a temperature control instrument. The Pid function enables the controller to switch the heating system on or off to the optimum value for the process.
As temperature is one of the basic factors in the success or failure of a finished product, it is essential to take it into account in order to manage it as effectively as possible.
Temperature management can be controlled simply and automatically thanks to temperature controllers featuring Pid technology.
There are several ways to control temperature to optimise and automate the response of industrial processes.
On/Off control is the simplest and most widely used control system in the industry.
When the measured value (PV) falls below the desired level (SV), the output is triggered, activating the heating element. As soon as PV rises above the SV value, this output is deactivated and turns off your heating element. In order to maintain a stable range, this continuous cycle of on/off action occurs according to the setpoint you choose.
This type of control is quite energy intensive as it requires frequent switching on and off of the heating element. In addition, this approach causes fluctuations that can affect the production process and the quality of the products.
Temperature control with pid is a much more advanced method since the controllers are constantly measuring the temperature and automatically adjusting it to keep the setpoint constant. Thus, it can counter temperature fluctuations and their consequences on the industrial process.
Pid is the abbreviation of the three actions Proportional, Integral and Derivative.
The principle of operation of this device is based on these three mathematical functions, invented by the mathematician Nicolas Minorsky who sought to automate the piloting of ships in the US Navy. This self-tuning Pid control system significantly improves the efficiency and stability of an industrial process by automating temperature management with precision and reliability.
Proportional Variable (P) : The proportional variable P is used to measure the instantaneous error, act on it and generate a corrective action. The gain, which can be adjusted according to the needs of the system, determines the speed and strength of the system response. Each component of the PID then acts to balance the overall behaviour of the system.
Integral Variable (I): The integral variable is an important component that allows the system to adjust for errors accumulated in the past and to correct small errors that a single proportional variable cannot correct.
Derivative variable (D): The derived variable is used to predict future error in order to minimise oscillations and smooth the response to change. The gain associated with this component must be properly defined in order to improve the speed and response time required by the system to achieve the overall objectives.
With these functions, the controller measures the recorded temperature and compares it with the process output. If it encounters a difference between these two values, also known as the "proportional band", the controller responds by adjusting the temperature to the given setpoint. Thanks to the feedback principle, this correction action prevents disturbances from occurring.
In other words, Pid control with auto-tuning can significantly improve the efficiency and stability of an industrial process loop by automating temperature management with precision and reliability.
There are other more advanced and powerful control modes offered by Fuji Electric. They provide optimal measurement and control for a wide range of industrial applications.
To fine-tune the controller's response to external changes, fuzzy logic control is used as it allows us to suppress overshoot. By inspecting the recorded value, we are able to avoid overshoot without affecting the start-up speed. Furthermore, these interruptions are handled quickly and efficiently.
With this function, fluctuations in external disturbances are kept stable and balanced, while any deviation from the setpoint during initial start-up and changes is suppressed.
This control mode suppresses overshoots, regardless of how often the process is started and stopped during the control phases.
At start-up, and whenever the setpoint changes or is disturbed by external factors, the PID parameters automatically adjust to ensure effective process control.
Temperature control with Pid (Proportional, Integral, Derivative) is used to automate the control and management of an industrial process for various industrial applications.
Installing a Pid controller allows you to control and regulate your process conditions, ensuring that temperatures remain within the desired set point.
For example, in the pharmaceutical industry, it's crucial to maintain stable measurements with precise temperature controls in test laboratories toavoid errors and guarantee the accuracy of researchresults. If temperatures deviate from the ideal range, this can lead to unpredictable reactions and invalidate any experiments performed. PID controllers provide the optimum solution for preventing these effects.
It will send a control signal to automatically switch on the heating element and produce heat until the setpoint is reached. The temperature is automatically adjusted to the set point. So your laboratory ovens, furnaces and incubators work optimally and safely.
Fuji Electric's digital temperature controllers - PXF series fully automate the control and regulation of your process temperatures. This automation allows you to save money by avoiding temperature oscillations which lead to industrial waste or excessive energy consumption.
For industries such as the chemical industry, thermal power or industrial utilities, precise temperature control is a must. Installing a Pid controller will enable you to quickly and accurately correct any variations in the control loop.
This control system is particularly effective for industrial boilers, where it provides safe and efficient operation without overshooting the command set. With its ability to adapt quickly to any situation and to correct any deviations accuratly and quickly, the Multi-function PID controller - PSC series with its colour display provides essential functions to correctly regulate the temperature of pressurised water in your industrial boiler. This ensures maximum efficiency and control for your industrial equipment.
Pid temperature controllers are the ideal devices for controlling pre-set temperatures in manufacturing operations.
By using temperature control with pid, you can set specific temperatures and times, allowing you to efficiently manage the different stages of the manufacturing process.
The universal controller - PXH series and digital temperature controller - PXF series allow you to define up to 64 steps with different temperatures and times, depending on the model opposite. This means that you can manage your manufacturing process with great precision and over various manufacturing steps with just one instrument.
The controllers have a temperature setting system that can be accessed directly from the front of the controllers, allowing you to set the parameters according to your needs simply and precisely.
For example, you can set a password before changing a temperature to prevent the value being changed. This function ensures that the setting cannot be changed inadvertently.
You can also :
For more user-friendly, dynamic parameterization and operation, you can also connect your controllers to an industrial touchscreen HMI - Human Machine Interface - via Modbus communication.
It is not mandatory to set up your Pid controllers from the front of the unit. You can also configure them from your workstation, directly on your computer thanks to a dedicated control software.
Installing this software will enable you to modify the values entered as often as required, for each controller.
This is a very useful feature for frequent temperature changes.
In addition, the software is easy to use and user-friendly, which is a real time-saver for manufacturers.
Thanks to the software installed on your computer and connected to your controllers, you can monitor your process in real time .
Temperature traceability is mandatory in many industries, such as the food and pharmaceutical industries. To guarantee the quality of the products, it is important to be able to follow the different temperatures to which they have been exposed during the process.
This is where the software's archiving function comes in, as it allows you to provide a detailed report and analyse the control loop in no time, regardless of your production applications.
Of all the control methods, Pid control is the most reliable and accurate. Applied to control temperature, flow, pressure, velocity or level, Pid control can automate and greatly improve the performance of various stages of an industrial process.
Pid temperature controllers are therefore indispensable instruments for all industrial applications that need to pay particular attention to temperature control and regulation.
The instrument is easy to use with powerful setting, monitoring and analysis capabilities.
As an expert in the field of industrial instrumentation and sensors, Fuji Electric offers you a wide range of industrial temperature control devices.
Easy to use, accurate and reliable, our controllers are suitable for different categories of applications and industrial sectors.
