1. #1
    m_c's Avatar
    Lives in East Lothian, United Kingdom. Last Activity: 3 Hours Ago Has been a member for 9-10 years. Has a total post count of 1,833. Received thanks 192 times, giving thanks to others 5 times.
    Following a bit of diagnostic work on the latest lathe purchase, it looks like the SCR motor controller is the problem (motor runs smoothly when powered from a couple car batteries, but growls/rumbles when powered by the controller, and the controller is pulling far too many amps - pulling 5amps from the mains when only 1amp is going through the motor).

    So, I've now got the option of either trying to locate a new motor controller suitable for powering a 0.55kw (3/4hp) 180V DC motor, or swapping the whole lot out for a normal AC motor and VFD.

    The only suitable SCR controllers I've found so far are KB Electronics ones, with the KBCC-225 being the nearest match in terms of features. However, it's going to cost at least $200, and that will probably work out to nearer 200 by the time everybody else adds their fees/taxes.

    And for 230 I can get a 1hp Marelli motor & Parker VFD delivered from here.

  2. #2
    M_C

    PM sent.
    John S -

  3. #3
    m_c's Avatar
    Lives in East Lothian, United Kingdom. Last Activity: 3 Hours Ago Has been a member for 9-10 years. Has a total post count of 1,833. Received thanks 192 times, giving thanks to others 5 times.
    New KB Electronics KBIC-240D has just been ordered from Axis Controls (www.axiscontrols.co.uk), and I should have it on Monday.

    Unusually, it was about a direct conversion price wise from $ to going by the US prices I'd found via google.

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