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Thread: Wiring

  1. #1
    Join Date
    Feb 2011
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    Default Wiring

    Hey guys. Just working out what I need to get started on a mill/drill conversion. No problems with the mechanical side but not real sure on the electrical side. Outside of a few pics and a couple of schematics I found on the internet I'm still a little confused.#I'm using a G540 controller as in the schematic bellow. Most of it I can follow but I'm a little lost at the switch/relay end of the circuit.


    http://www.homanndesigns.com/pdfs/EN010_V8.pdf


    So mains power comes in through a cable connected to SW-06 (IEC plug/switch/fuse)? Then goes through the e-stop and to the power supply? Another line goes off to the relay and powers IEC female socket?


    What is IEC female socket used for? To power the computer or something else?


    What is the 'auxiliary relay output' thing off to the side and what is the enable switch used for?


    Thanks for any answers in advance, cheers Brett.

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  3. #2
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    Default

    The IEC socket can be used to control power to the spindle via a VFD.
    The enable switch controls the G540, if it's open then the G540 goes into error mode.
    The auxillary can be used to control (say) a cooling system for the cutter or to tun on the pump if you have a water cooled spindle.

  4. #3
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    Quote Originally Posted by slhouetteV8 View Post
    Hey guys. Just working out what I need to get started on a mill/drill conversion. No problems with the mechanical side but not real sure on the electrical side. Outside of a few pics and a couple of schematics I found on the internet I'm still a little confused.#I'm using a G540 controller as in the schematic bellow. Most of it I can follow but I'm a little lost at the switch/relay end of the circuit.


    http://www.homanndesigns.com/pdfs/EN010_V8.pdf


    So mains power comes in through a cable connected to SW-06 (IEC plug/switch/fuse)? Then goes through the e-stop and to the power supply? Another line goes off to the relay and powers IEC female socket?


    What is IEC female socket used for? To power the computer or something else?


    What is the 'auxiliary relay output' thing off to the side and what is the enable switch used for?
    Per the diagram, the IEC socket is connected to output1. You can use for a pump, mister. The other relay is set to START the VFD. ( see page 2).

    Gordon.
    Gordon
    _____________________________________________
    Ever wonder what the speed of lightning would be if it didn't zigzag?

  5. #4
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    Feb 2004
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    Oxley, Brisbane
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    Default

    You don't have to use IEC plugs and sockets, but they are nice and neat, have good insulation and are often free from old computers or power supplies
    Bob Willson
    The term 'grammar nazi' was invented to make people, who don't know their grammar, feel OK about being uneducated.

  6. #5
    Join Date
    Aug 2013
    Location
    Melbourne
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    Default

    I just used the IEC for power in (fused and switched at the connector) straight to the power supply, then DC straight to the gecko.
    my estop/enable is just wired through pin 9 or 12 or whatever its supposed to be on -didnt want it switching the 240v off and powering down the controller. mach would have a fit, lose its position etc. i just let mach handle the e-stop when the output goes low -kill the drives and spindle. if i need to kill power to the controller i do so via the switch on the IEC plug.
    i used a single phase motor and no VFD so my motor wiring is probably no help to you, but i put a plug top on the motor and plugged it into the wall. active is interrupted and goes to the controller box via a lead with another IEC plug. i run a 48v relay off the PSU, grounded/switched by the gecko which connects the interrupted active to turn the spindle on.
    i run a similar setup for my coolant using output 2 and a lower voltage plug.

    i found the homman designs schematic a bit overcomplicated so i simplified the switch/power side as above and it all works great (in my application, yours may have different requirements). the rest of the schematic in regards to motors and limit switches is pretty simple and works well.

  7. #6
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    Melbourne
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    Default

    Thanks for the answers guys.

    Andrew, I'm not using a vfd either so what you've done sounds good.

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