Posts Tagged ‘Bump Test’
Pulse is Okay, but Doublet is Better
The Pulse and Doublet tests both allow practitioners to observe the process moving in opposite directions, but which is better?
Read MoreHow to Perform a Step Test
Tuning PID controllers is a multi-step process. While it is important to understand each step in the process, performing the bump test and collecting dynamic data is the most crucial step that generally dictates the outcome. This post delves into one particular type of test – the Step Test – before introducing other tests commonly used in PID controller tuning.
Read MoreDoes Tuning a PID Controller Require a Bump Test?
It’s generally accepted that tuning a PID controller requires some form of testing. Whether a step, bump, doublet, or pseudo random binary sequence, the test forces a change to the Controller Output (CO) which drives a response in the Process Variable (PV). The dynamic relationship between the CO and PV provides the basis for modeling a process’ behavior. In turn, the model is converted into tuning parameters corresponding with your controller. All of this is made possible by conducting a simple test. But what if it’s not that simple.
Read MoreHow Do I Perform an Effective Bump Test?
Bumping a process is a standard requirement when tuning a PID controller – whether you tune manually or with the help of software. And, either way, applying industry best-practices will save you significant time and money.
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