Encoder pid control in labview3/11/2024 ![]() When programming in C or Visual Basic, use the flex_load_follow_err function. Combined with the LabVIEW Control Design & Simulation Module, the LabVIEW PID Control Toolkit can help you simulate and tune your PID controllers without implementing them in real-world systems, thus avoiding possible problems. When using the FlexMotion API for LabVIEW, use the Load Following Error VI to set the number of counts allowed. National Instruments provides ready-to-run, advanced (PID) control algorithms with the NI LabVIEW PID Control Toolkit. In the Advanced Trajectory Parameters group, adjust the value labeled Following Error. Also, when commanding moves using the 1-D Interactive or 2-D Interactive screens in MAX, navigate to the Advanced tab at the bottom of the screen. To do this, go to Devices and Interfaces»PCI-73xx✽efault 73xx Settings✺xis x»Trajectory Settings. In MAX, the following error can be set for each axis. Instead, this setting needs to hold the corresponding number of counts read by the controller, which is four times that resolution.Ĭhanging the maximum allowed following error When setting the Encoder Counts Per Revolution input in Measurement & Automation Explorer (MAX), it is common to mistake this value for the encoder's physical resolution. This feedback, read from either analog voltage or pulse-train encoder signals, indicates the actual position/velocity of the motor. ![]() ![]() Additional InformationNI 73xx motion controllers contain an on-board PID control loop that allows them to use position and velocity feedback to adjust their command signal. ![]()
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