Leroy-Somers single phase 115/230 volt motor wiring

Discussion in 'The Projects Forum' started by cmrwinery, Dec 7, 2013.

  1. cmrwinery

    Thread Starter New Member

    Dec 7, 2013
    3
    0
    I have a single phase 115/230 volt leroy-somers motor without wiring diagram. It has european style wiring block. I need to know if it is configured for 115 or 230v at this time.
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
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    Doesn't look enough information there?
    Where was it used last? It may give you an idea.
    Max.
     
  3. inwo

    Well-Known Member

    Nov 7, 2013
    2,433
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    If it's wired now and the only question is high or low.

    Run it on 120vac. It will run fine but under powered if wired 240.
     
  4. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,515
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    I guess the problem is also which is the single phase connection from three possible terminals?
    Max.
     
  5. inwo

    Well-Known Member

    Nov 7, 2013
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    Hard to see. Possibly the two blue crimp-on are the only field wired connections.
     
  6. Electric Al

    Member

    Nov 6, 2013
    58
    8
    Google ... Leroy-Somer L S 80P/T

    It's in French , but there is a translate option !
     
  7. cmrwinery

    Thread Starter New Member

    Dec 7, 2013
    3
    0
    thanks for the insight. This is mounted to a vacuum pump on a bottling line. Most of the machine on the line runs 3 phase 208V. All of the Leroy-Somers single phase info I got was strictly for 230V as that is all they sell in Europe. so I have a motor with US voltages but a European style terminal block. I guess I'll try the 115V option first. And yes the blue crimps were the existing field connections so there were only 2 line feeds.
     
  8. inwo

    Well-Known Member

    Nov 7, 2013
    2,433
    315
    This might be a hint.
    Rotation but not voltage.
     
  9. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,974
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    Dont know if this may help you motor

    Whats connected to the black, white and blue wires?
     
  10. inwo

    Well-Known Member

    Nov 7, 2013
    2,433
    315
    That should be what op is looking for.

    Wonder why the current connection doesn't seem to match though.:confused:

    I see now.
    Looks like a non-standard 220 connection.
    If the middle top terminal is jumpered left or right it should work.
    As would your diagram.
     
    Last edited: Dec 8, 2013
  11. cmrwinery

    Thread Starter New Member

    Dec 7, 2013
    3
    0
    blue wire is U1, white wire is V2 and black wire is V1
    Orange is Z2, Red is U2 and brown is Z1. I think that this must be a nonstandard connection to the terminal block since Z2, U2 and V2 are all jumpered(as in 110V) but the line connections are at U1 and Z1(as in 220V).
     
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