Elliptical Motion of Two Stepper Motors with PCI 7332

[AsperAstrum]

Greetings,

I am trying to move two stepper motors on a 2d elliptical arc using LabView and PCI 7332 controller board. The 2D ellipse example in the LabView library does not work with the 7330 series. Is there any other easy way to perform such a motion with PCI 7332? Thank you in advance.

[Jochen]

There are two ways to do elliptical arc moves:

1. Use contouring two download target position arrays to the onboard buffer
2. Use arc moves in combination with gearing (shipping example). This requires three axes.

The 7332 doesn't support contouring and gearing and it doesn't provide a third axis, so there is no way to use this board for this type of moves. The cheapest NI board that supports elliptical moves in contouring mode is the PCI-7342. As the second option requires three axes, at least a PCI-7344 is required for this method.

Kind regards,

Jochen Klier

National Instruments