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MX3660/4660 Spindle Control Config?

23 Aug 2017 15:14 #97934 by Snomonky
Snomonky created the topic: MX3660/4660 Spindle Control Config?
Greetings all,

Does anyone have any guidance or examples of a LinuxCNC configuration for the Leadshine MX3660/4660 to control the spindle on a KBIC 125 (G0704)? Per a CNCzone post, I believe I have the wiring correct, but I don't know how to configure in stepconf or ini/HAL, as all the info I've found so far has been about spindle control via Mach.

Any pointers would be greatly appreciated!
30 Aug 2017 12:49 #98201 by andypugh
andypugh replied the topic: MX3660/4660 Spindle Control Config?
It appears that you need to output a PWM on pin 14. This should be easy to configure using the Stepconf wizard.

One warning, the analogue speed control pins on the KBIC boards float at mains voltage above ground. This isn't a problem for the MX3660 as the analogue out is opto-isolated, but don't let the wires tough anything sensitive, including yourself.

On the hardware side you simply connect the P1 P2 P3 terminals on the KBIC to the MX3660 analogue output, it is effectively a simulated potentiometer. Be careful about polarity, though, on the P1 - P3 pair, and check the voltage between them with a multimeter (should be <= 12V)
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