Spindle speed control, Huanyang VFD and DC-03

[WillyInBris]

Is that for my specs or the VFD display?

May be safer on your VFD

But I will say the VFD flashing would worry me a little as well I think hitachi VFDs we had at my last place of work on the mixers would do this when they dropped a phaze so it doesn't seem right.

[Bob Willson]

Bob, one good option for your setup should be similar to mine, hook up a SDST switch on a panel somewhere which is hooked up between a 5v logic source and the enable of your BOB. This prevents outputs from the BOB Daniel

Hi Daniel

In the end I decided to do it the brute force way and set up a 4 outlet power board with switches. I now don't turn on the power to the CNC until the computer is up and running Mach3.

This has the added advantage of giving me total control of the power to all the individual attached bits and pieces with just the flick of a switch.

Bob

[twistedfuse]

Bob,

sorry been a few days, all will be explained in my posts later this week. Anyway, that definitely works. Just be careful with the cheaper power boards used in that way unless you have decent protection on pc and the circuits. Just seen power boards surge as they are under load already, and then adding a capacitance load (PS Supply, BOB and drivers etc) if pulling large amount may surge power into motherboard of PC or into CNC circuits. Just don't want to see you loose all your hard work.

Daniel