Originally Posted by
ryanpierce
Doing some testing with a volt meter, it seems:
* Solid state relay K16 / Fuse F10 are turned on with M64 and turned off with M65.
* Solid state relay K31 / Fuse F40 are turned on with M66 and turned off with M67. (The wiring diagram has a typo and says K41!)
Both M64 and M66 can be turned on at once. I don't know if these M codes are in any way used by the probe routines or alter the software behavior.
Without having access to an actual 1570-1, and the description that it switches between three probes when it only takes two input pairs and has two mechanical relays, I'm guessing that:
* It is using two double pole relays
* One relay has two probe inputs on its two poles
* The common contact of that relay goes to one pole of the second relay, and a third probe input is on the other pole of the second relay.
* The common contact of that second relay goes to the machine.
So that supports 3 input probes. It explains why M64 M66 are used to turn on the MP12 according to the diagram, and M65 is used for the tool setter.
Any thoughts? Do any of the probing routines actually set these M codes or change their behavior based on which M codes are active? And does the 1570-1 have any kind of signal conditioning? I'm asking because the tool setter probe appears to be just a switch and in the wiring diagram where it is used alone, and it needs a Fadal signal conditioner, but in the diagram where it is used with a 1570-1, the signal conditioner is absent.
Thanks,
Ryan