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  1. #1
    Join Date
    Dec 2003
    Posts
    24220
    I'm a little confused with some of your details, you mention a drum switch, which usually precludes a contactor, because the Omron MY2 series of relays are just signal or control relays, not really suitable for motor switching?
    If in fact you do have a contactor and a drum switch then this may be for reversing feature with a single contactor.
    Either way, if it works when you push the contactor armature in, then confirm the coil voltage and AC or DC?
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  2. #2
    Join Date
    Feb 2014
    Posts
    14
    I'm confused to. lol

    Power in from 220 to a transformer,
    transformer to the two contactors, breaker, bridge rectifier, relay...

    When I use jumper to bypass the relay it doesn't activate the coil in either of the contactors.

    Attachment 222228
    Attachment 222230
    Click image for larger version. 

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  3. #3
    Join Date
    Feb 2014
    Posts
    14

    Re: Wiring issues...enco lathe

    I'm posting in this thread again to help a fellow cnczone member. (Unless I can send pics via PM and I'm just not seeing the option.)

    Paul, first I want to apologize.
    I am the founder of a weapon manufacturing business so I'm always busy and dealing with everything all at once.
    I was fast to reply at first because I thoroughly enjoy helping others but ultimately my plate is full and I keep asking for more.
    Whenever you need assistance just post in here and I'll do what I can to help.
    I have the equipment and can take pictures and trace wiring for you as well as answer component related questions.
    However there may be subtle differences between our machines so I'll help where I can and other can fill in the blanks.

    I had a difficult time finding any accurate schematics but luckily there are many on here that have acquired a strong general knowledge of electrical wiring.
    Ultimately that's all you need to work on these older and simple machines in my opinion.
    Once you learn which electrical parts do what, the wiring is mostly straight forward.

    I strongly recommend research to acquire your own understanding because not only is it helpful for repairs but also for safety.

    The pictures of the drum switch are at the end.

    Here are a bunch of pics. Some useful, some probably not.
    Attachment 232404
    Attachment 232406
    Attachment 232408
    Attachment 232410
    Attachment 232412
    Attachment 232414
    Attachment 232416
    Attachment 232418
    Attachment 232420
    Attachment 232422
    Attachment 232424
    Attachment 232426
    Attachment 232428
    Attachment 232430
    Attachment 232432

  4. #4
    Join Date
    Oct 2013
    Posts
    12

    Re: Wiring issues...enco lathe

    Quote Originally Posted by farshot83 View Post
    I'm posting in this thread again to help a fellow cnczone member. (Unless I can send pics via PM and I'm just not seeing the option.)

    Paul, first I want to apologize.
    I am the founder of a weapon manufacturing business so I'm always busy and dealing with everything all at once.
    I was fast to reply at first because I thoroughly enjoy helping others but ultimately my plate is full and I keep asking for more.
    Whenever you need assistance just post in here and I'll do what I can to help.
    I have the equipment and can take pictures and trace wiring for you as well as answer component related questions.
    However there may be subtle differences between our machines so I'll help where I can and other can fill in the blanks.

    I had a difficult time finding any accurate schematics but luckily there are many on here that have acquired a strong general knowledge of electrical wiring.
    Ultimately that's all you need to work on these older and simple machines in my opinion.
    Once you learn which electrical parts do what, the wiring is mostly straight forward.

    I strongly recommend research to acquire your own understanding because not only is it helpful for repairs but also for safety.

    The pictures of the drum switch are at the end.

    Here are a bunch of pics. Some useful, some probably not.
    Attachment 232404
    Attachment 232406
    Attachment 232408
    Attachment 232410
    Attachment 232412
    Attachment 232414
    Attachment 232416
    Attachment 232418
    Attachment 232420
    Attachment 232422
    Attachment 232424
    Attachment 232426
    Attachment 232428
    Attachment 232430
    Attachment 232432
    Thanks farshot83!!! Thank you for the time and the pics of the drum switch, it is identical to mine. Here is a pic of my electrical box if that will help others also. Attachment 232450 Also a pic of the drum switch off the lathe. Attachment 232448 Lastly a drawing of the switch and wiring. Attachment 232452 Thanks again for all your help and when I get the lathe up and running I'll post a couple pics. Have a GREAT one!!!

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