It should be clear by now that maintaining temperature stability throughout the heat treatment process is not only a matter of energy efficiency. It is also a process where accuracy influences the outcome. And self-adaptive PID temperature control is necessary to prevent even the smallest temperature variations from jeopardizing the process.
In a very simple way, PID is composed of three almost intuitive actions, which are performed by NOVUS controllers through an algorithm that is highly acclaimed by the market. By monitoring the performance of furnaces that have these controllers, it is quite clear to operators and production managers that the equipment is not only the best, but that it performs flawlessly and recovers quickly from minor changes.
The PID control technique involves calculating a process action value from information about the desired value and the current value of the process variable. This process action value is transformed into a signal suitable for the actuator used (valve, motor, relay) and should ensure a stable and accurate control.
The adjustment needs to consider the difference between the desired and current value, the proportion (time) in which the error grows, and how long the difference has been acting on the process. The PID algorithm of the temperature controllers makes the necessary modifications and guarantees a uniform exposure of the product, respecting the programmed treatment curves.
Self-adaptive PID: Accuracy in first place
A self-adaptive PID controller can continuously evaluate the accuracy and stability of the control and automatically adjust its parameters if the performance is not satisfactory. The user does not need to interfere. This is a feature offered by few industrial controllers. Since 2002, NOVUS has conducted intensive research in Self-Adaptive PID that has resulted in innovative products.
Over the past 20 years, the company has made countless improvements to the control algorithms and incorporated rules to optimize the classical PID performance. These rules have been developed in the tuning of thousands of control loops.
Improving the control loops tuning is an investment that guarantees a quick return, since control loops that are poorly tuned increase operating costs. That is, poorly tuned control loops increase the electricity costs, the amount of maintenance downtime, and the amount of rejected products. Overall, the tuning process provided by the self-adaptive PID ensures optimal production conditions.
Check out our options for temperature controllers with self-adaptive PID:
N1200: High accuracy and robustness for industrial environments
- Ideal for controlling the performance of the most demanding applications.
- It ensures fast and accurate response in highly dynamic processes with complex profiles.
- Its electronic robustness and its housing in flameproof material are compatible with the main worldwide certifications for industrial devices.
N120: Versatile and accurate
- It accepts most sensors and signals used in industry.
- It has the main output types, which allow the controller to act in several processes, including the heat treatment process.
- Its self-adaptive PID algorithm continuously adjusts the PID parameters.
Data loggers and supervisory software that work with a PID temperature controller
Temperature controllers act during the heat treatment process. But it is possible to have a greater control and to follow up and record the data for later evaluation.
Besides offering several options for PID temperature control, NOVUS has data loggers and supervisory software that complement the operation of furnaces and help the end customer to better understand his process.
Contact an expert to find out how you can increase your customer’s confidence in their furnaces using NOVUS complete accessory kit and solutions.