1. #1
    I'm working on my first build and am a little confused by the PCPPS V3 board. The schematics I have from Zapp Automation only show the connections to the PM542's and the 50V PSU. On the PCPPS board, it states the supply should be 7 - 30V...so does that mean I will need a second power supply just for the PCPPS??

  2. #2
    Yep buy a 24V and use it to power relays etc that you'll need to safely control other things like vacuums or spindles, coffee machine etc
    Also use it to run thru E-stop and limit switchs for a very safe control system with better immunity from noise.!

    Don't need high amps 3-5 will be plenty and cheap enough on ebay.

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  4. #3
    Thanks for clarifying that. I have a 2A 24V PSU which I was going to use for the main control, safety circuits and cooling fans. Will have to re-calculate my total consumption and see if the 2A will be enough. I guess the other option is to use one of the spare 12V from the PC power supply?

  5. #4
    Does anybody know what the current consumption of the PCPPS board is? The documentation states 7 - 30V DC but no mention of current or power consumption? I'm guessing it'll be low. A few hundred milliamps perhaps? Can anyone confirm please?

  6. #5
    Email Roy at DIYCNC.co.uk he will know but seen has it's such a basic board it will be very low so nothing to worry about really.

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