Lathe will NOT stay shut down
Close
Login to Your Account
Results 1 to 5 of 5
  1. #1
    Join Date
    Jun 2005
    Location
    Southern Indiana
    Posts
    98
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    0

    Question Lathe will NOT stay shut down

    I am having an issue with my TL1 Lathe, it will not stay powered down. When I hit the Auto off button the machine will shut off, then immediately power back up and go thought the start-up cycle. Using the Power Off button will do the same thing, it will power down then power back up.
    I put an Ohm on the power on switch and it is Normally Open and is working correctly. The power off button will power it off but when I release the button it powers back up. Is there any parameters that might have gotten changed that would keep the control in the on state ?

    When I kill the main breaker to shut the machine off then later turn the breaker back to On the machine stays off until I push the On button, so I think the switches are good.

  2. #2
    Join Date
    Feb 2004
    Location
    Staten Island NewYork USA
    Posts
    3,589
    Post Thanks / Like
    Likes (Given)
    1009
    Likes (Received)
    1697

    Default

    Its happened to me a few times. Those buttons go bad, often from coolant.
    Power On, Off and Cycle Start/Stop...

  3. Likes BILLMCCANDLESS liked this post
  4. #3
    Join Date
    Jul 2006
    Location
    Hillsboro, New Hampshire
    Posts
    5,258
    Post Thanks / Like
    Likes (Given)
    1232
    Likes (Received)
    3678

    Default

    This lathe is the ideal candidate for a robot feeder and 24/7 operation. Take advantage of this go-getter!

    Or, check for a sticking relay associated with the switch, if the switch itself is truly good. You might try wiring in an electrically identical switch temporarily just to see if the original is the problem.

  5. Likes Volitan, BILLMCCANDLESS liked this post
  6. #4
    Join Date
    Jun 2017
    Country
    UNITED STATES
    State/Province
    California
    Posts
    8
    Post Thanks / Like
    Likes (Given)
    0
    Likes (Received)
    2

    Default

    Check out this diagram:
    https://diy.haascnc.com/sites/defaul...it_Diagram.pdf
    I would suspect the auxiliary contactor being stuck closed. (it usually located on the side of the main contactor inside the electrical cabinet.)

  7. #5
    Join Date
    Dec 2014
    Country
    UNITED STATES
    State/Province
    Washington
    Posts
    156
    Post Thanks / Like
    Likes (Given)
    249
    Likes (Received)
    58

    Default

    If you have a machine/employee that just loves to work you should do your best to provide enough for satiety. FEED IT!!


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
2