12-24 volt step and direction with the breakout board?
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I'm using ClearPath motors that need at least 5v step and direction but ideally 12 or 24 volt. I have 5v 12v and 24v rails in my machine, all common ground. I'm running them now with the + connection connected to the 5v rail and the - connected to the expansion board. Can I use 12v or even 24v instead? At what point will that damage the board?
Any other tricks?
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No, the breakout board cannot supply 12V signals to external drivers.
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Even if I provide the external 12v supply?
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@chjade84 said in 12-24 volt step and direction with the breakout board?:
Even if I provide the external 12v supply?
Even with an external 12V supply. You would need to use a different type of driver on the breakout board. But most external drivers are just fine with 5V or even a bit less.
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I'm using ClearPath servos so they aren't a normal driver. They need 5-24V signals. I was getting really bad results and drifts of 0.1" or so over the 20mm calibration cube. I presume because steps are being missed by the driver at the bottom edge of their usable range. I rewired the old CNC controller this morning and am using that again. It's not producing any drift at all and outputs either 12 or 24v signals to the controller; I forget which.
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Did you make sure you used the correct T parameters in the M569 commands for your externaldrivers? The Duet is too fast for most external drivers without those parameters.
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Looking at the data sheet, he could drive it with 5.5v to 6v, couldn't he?
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@elmoret said in 12-24 volt step and direction with the breakout board?:
Looking at the data sheet, he could drive it with 5.5v to 6v, couldn't he?
Yes. But other users are using ClearPath servos and 5V drive from the breakout board is working for them.