Crusader II retrofit

Sorry - by isolation I mean noise suppression and also a general level of product quality. I really am not an expert in this area. The ebay item would probably work fine, just don't have any experience w/ it.

Mark

Yes after looking at the ebay item closer it appears to be for a automotive application and trying to power it with the output from the ATA power supply it may not get whatever is required for this circuit.
As far as the limit switches voltage requirements they should do fine 24 volts as the Z axis uses ones like THIS and the X & Y use plunger types like THESE .

On your sketch, upper circuit, I believe that the contactor may already exist on the on the PCB 801. You can see it below in the attached photo #0002.jpg. photo 5 is the whole schematic and the others are closer shots of each corner.

Jim

Hi Jamby,

Those TEMCo Cross Roller Plunger Limit Switches should work fine at 24vdc.

As far as the contactor on your board, you're now at a point where you need to make a decision on what you want to do. Your schematics look similar to my Anilam Crusader M and I had a board w/ 3 relays on it, but the problem was that the Anilam circuit board was powered 'backwards' for the outputs from the 7i77, ie the 7i77 output sources 24vdc and the Anilam circuit board was setup to sink 24vdc. For me, I simply didn't use two of the relays and wired one 'backwards' so that I could use the sourcing 24vdc output from the 7i77. If that makes sense... I wired in the relay to turn-on the servo amplifiers and left the others disconnected. For my estop, I wired in a safety relay and contactor, but the latching circuit I drew would work fine as well.

Mark

Mark

I believe the 801 board has (2) relays on it.
Your M controller was the next version after my crusader II controller.
Looks like I need to learn how to chase down how my circuit works.

Thanks for you help
Jim

No eBay APP ID and/or Cert ID defined in Kunena configurationSomehow, I had a schematic for my board w/ 3 relays on it. If I were to do it again, I might consider ripping out the anilam circuit board and use stand-alone ice cube relays something like this: . On the Crusader M, they used those type of relays on the circuit board and then went to a larger SSR to turn on/off the servo amplifiers.

Well I have been making parts with my current setup, that is using the Anilam "Red" card to handle E-stop and Limits and having Linuxcnc control the drives. But the one problem that concerns me is Linuxcnc doesn't know when the E-stop or Limit is tripped and with the Limits when power is restored the axis will jump, unless I hit e-stop or power off on Linuxcnc.
There is a 15v power connection on the amplifier boards that I could connect to the Mesa 7i77 and then write a hal handler to power off Linuxcnc when that voltage drops to "0".
Does this sound like it would work?
with +15v coming from the 15volt 1.5 amp power-one card.

Thanks
Jim