- ページ 9

温度コントローラー Auber WS SeriesのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Auber WS Series 18 ページ。 Precision pid temperature controller

integrated with time. Integral action is used to eliminate temperature offset. Larger
number means slower action. e. g. assuming the difference between the
measured and set temperature is 2 degree and remain unchanged, the output will
increase continuously with time until it reaches 100%. When temperature
fluctuate regularly (system oscillating), increase the integral time. Decrease it if
the controller is taking too long to eliminate the temperature offset. When I=0, the
system becomes a PD controller. For very slow response system such as slow
cooker and large commercial rice cooker, set I = 0 will significantly reduce the
temperature overshoot.
• d. Derivative time. The unit is in seconds. Derivative action contributes the output
power based on the rate of temperature change. Derivative action can be used to
minimize the temperature overshoot by responding its rate of change. The larger
the number is, the faster the action will be. e.g. when the door of oven is opened,
the temperature will drop at very high rate. The derivative action change the
controller output based on the rate of change rather than the net amount of
change. This will allow the controller to act sooner. It will turn the heater to full
power before the temperature drops too much
• AT, Auto Tune.
Every type of cooker has its own unique set of tuning parameters. For the
controller to heat with stability, it should have programmed with the tuning
parameters for the cooker currently being used.
When Should the Controller be Tuned?
Auto-tuning function (it's often known as self-tuning) can automatically optimize
the PID parameters for your chosen cooking system. The auto-tuning function will
heat up your cooker then let it cool down. It will repeat this heat/cool cycle several
times. Based on the response time of the whole cooking system, the controller will
calculate and set the PID parameters for your cooker.
Before using the auto-tune function, you must set the cooking equipment up in the
exact configuration it will be used. For example, to tune a rice cooker, place the
sensor in the room temperature pot filled with water and plug the cooker into the
Figure 4
9