"BRAKE BOARD" NEW Design for MACH3

[Chivo]

Please

Can somebody check this schematic?

I had used optocouplers 6n138 because I can't find where I live optocouplers HCPL-2730 or HCPL-2731.

It has LCD output, to send messages about machine condition.

I add to a zip file a winrar auto executable file (.exe) because no everyone has winrar progaram. (winrar = winzip)

Thanks

[Chivo]

Sorry about my english

Some features of the brake board:

* Step motor pminmo configuration or gecko configuration.
* 4 Exits for spindle (CW;CCW) and coolant (mist; flood).
* Opto couplings for all outputs and inputs (not for step and direction because almost all drivers are built on)
* LEDs and LCD outputs with 25 pin connector for an extra board to be conected on the cabinet's door.
* Outputs for spindle and coolant with a connector for and extra board which will have relays
* Built on AVR micro processor