05-10-2010, 12:19 PM
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| | | Join Date: Mar 2004 Location: St. Louis, MO
Posts: 309
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Originally Posted by HughRob  Hi,
I am still in the planning stage but I have a question concerning the interface between the EMC and the Spindle.
How does the EMC and the inverter for a spindle motor physically connect? Can it be handled on a pic board? |
EMC2 sends a command for spindle speed to a HAL "pin". It is up to the hal code you provide to determine how it gets to the actual spindle drive. If you have DACs for velocity servo amps, then you can feed it out through those. If you have PWM outputs, you can use those. If you have an separate DAC in your hardware, that can be used. A spare step pulse output could be run through an R-C filter to provide a crude DC voltage.
So, it depends a lot on the available hardware.
Jon |
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