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S-Curve Motion Profile Using Contour Mode
In some motion control applications, an S-curve motion profile can help to smooth the motion and reduce the possibility of exciting a vibration or oscillation. The "S-curve" refers to the rounded "S" shape of the velocity versus time graph. To understand where the "S" comes from we have to first look at the acceleration vs time graphs. In a standard trapezoidal motion profile, the acceleration vs time graph is essentially a "step" function. In an s-curve profile, the acceleration vs. time graph is a triangle (as shown in the image below) or possibly a trapezoid.
Laser Control Options
Galil Laser Control options focus around a group of specific application requirements found primarily in laser marking, inscribing, raster imaging, and intensity control. Although lasers are particularly suited to these modes, many other technologies are applicable, including focused ultrasound, imaging and high speed inspection, and plasma and water cutting.
Alternative Feedback Options for Motion Control
A majority of motion control systems that include feedback will use an incremental encoder. The draw back to incremental encoders is that upon power up the controller does not know the position of the motor in absolute terms.
RTD and Thermocouple Interface for RIO Pocket PLC
Galil’s RIO Pocket PLC and new SCB interface for RTDs and thermocouples provide an easy method for precisely handling temperature control applications. The SCB-48206 Signal Conditioning Board interfaces to up to six RTDs (Resistive Temperature Device) and the SCB-483x6 provides interface for up to six thermocouples. The SCB-48xx6 boards can connect directly to the 26-pin d-sub connector of the RIO-47120/47122 or can be mounted remotely via a 26pin cable.
Using Labview with the GalilTools Communication Library
There are a few different methods for developing a LabVIEW application that can communicate to a Galil motor controller.