andyholcomb wrote: >> >>So, for basic lathe functions, it will run $250 + 2*125 + 50 = >>$550. You likely will need additional I/O control points for >>your tool turret, etc. although the controller has 16 digital >>inputs and 8 SSR positions for output. This board functions as >>a break-out board, so nothing else is needed to hook it up. >> >> > > Jon can you clarify more on the above I/O info it confused me, do I need > more I/O or is yours enough? > Andy For a simple lathe, with spindle speed, X and Z, limit and home switches, and coolant, what is provided on the UPC is more than enough. When you get into tool turrets, gear changers, pneumatic/hydraulic chuck release and bar pullers, then you run out of bits quickly. You can daisy-chain up to four boards together, but that may not be the most cost-effective solution if all you want is more digital I/O points.
I could imagine running a tool turret with what is available on the UPC, but the way most of them are set up, it isn't enough. You need digital outputs to run the spindle, unlock the chuck, unlock the turret, rotate the turret, enable the servos and coolant. So, that is 6. You need a minimum of 3 input bits for the turret position if there are 8 positions. You normally use up 4 input bits per servo axis, that would be 8. So, that leaves 7 bits available, after the estop input, which is mandatory. It could work, but these machines usually have a raft of other sensors and interlocks that you will want to hook up. Jon ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
