Haas VF2 Amperage Draw?
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    Default Haas VF2 Amperage Draw?

    Can anyone tell me what the amperage draw for a Haas VF2 is? I've called Haas about 4 times with that question and nobody with a brain in their head is ever there to take my call. I thought I seen some where it needed to be wired to an 80 amp breaker but I am not sure how accurate that info was. If thats the case I will need at least a 30HP converter, and a phase perfect that size is not cheap. I understand the machine will draw a lot having a 20HP spindle motor. I was just considering trading my TM1 in for something with an enclosure but the cost of a phase converter alone might be a deal breaker. I dont necessarily need the added power of a VF2 but the enclosure and a chip auger would be nice. Can any one suggest another Haas machine that has an enclosure but wont take a 30HP converter?

    Thanks

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    my VF-3 is a 20 haaspower mill (with the gearbox!) and it requires a whopping 50amp breaker for its 35/40 max amp load, 3 phase.

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    My VF3 has a 40 amp breaker inside.

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    My 2012 VF3 has the 10k rpm inline direct drive, 30 HaasPower with a 40HP Vector Drive. The breaker on the back of the machine is 80 amps and they specify 100 amp service. I doubt it draws anywhere near that, but that is what the manual calls for - obviously this has changed over time. What year is your machine? There is a section in the back of the manual that specifies power requirements.

    Haas Downloads: Manual Updates | Haas Automation, Inc. | CNC Machine Tools

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    You did not specify voltage.

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    I would assume 240 if he's talking phase converter.

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    Quote Originally Posted by kapps View Post
    I would assume 240 if he's talking phase converter.
    You are probably right.There are however other out there.
    My machine is 440volt.I use a transformer.Our shop has 240volt 3 phase.My amperage is 1/2 of what 240 volt systems have,,just saying.

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    We got several more machines in the last yr and one of the wanted 200 amp service (big multitasking machine) so I called the power company they told me $20 grand and I almost fell down. We already have 400 amps. Another local shop and friend said you should get a cheap amp clamp and see what you are drawing now. $80. Wow.
    Twin spindle live tooling 20hp lathe, 2 sharp sx2414sv hogging alum. (About same vf2), and I think we had one other machine on there and at peak 55 amps total coming off main feed to the box. 240v 3ph
    These companies want you to supply enough power that if you are running 10k rpm and somehow dead head stop the motor on x,y,z and spindle all at the same time, that then will trip the breaker.
    You should be fine 20-30 amp breaker

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    Ok so it looks like it just depends but anywhere from 40-80 amps. I am actually considering a new machine but that will depend on the tax advantages and what is available in the used market.

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    Fwiw..
    Machine specs is one thing.
    Motor draw is quite another.

    The power drawn is proportional to the amount of metal you cut. Accelerations use full power for a short while (2 secs or so).

    I had to run some of our 8 machines off a genny last year (no power at all).
    With a 50 hp genny, we could start 4 machines at once, and run 2-3 machining *when* we ran them carefully with limited acceleration.
    And the office upstairs, with 5-6 people. Drawing about 1 machine-equivalent (with no heating. In 5C.Brrr ...)

    It was cold enough to kill penguins ("para matar penguinos ...").
    Amps depending on voltage, but kW is a measure of power. A 40 hp or 30 kW motor will need about 30 kW..
    Grin ..

    Avg cutting draw is 1/3-1/2 max power at most (so about 10-15 kW for VF2).
    Your peak loads are averaged between all machines and total building power.

    IF you manage to run at peak power for extended times, you are cuttng so much metal and should be making so much moolah all above is meaningless, and just pay someone to install more when needed.
    You are also a fantastic programmer and job planner and fixture specialist.

    Avg heavy usage of machines is 1000 hours/yr spindle-on, or 1/8 of max (unless feeding with robot).
    Of this, avg draw is about 15%.
    So, 150 hrs / 8760 == 98.13% of time spindle is idling ..

    Something to think about.

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    There was a recent comment on this board about Haas rating their spindle motor hp like shop vacs.

    Something to consider when looking at those huge breakers.

    (Maybe don't really need something so large.......?)

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    Default Re: Haas VF2 Amperage Draw?

    On my VF3 on the CE panel it has 40 amp max load, 35 largest load, 195/260 volt. Haas says to run it to a 50 amp breaker. The 50 tapers and high rpm mills will say to use a 100 amp breaker.

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    Quote Originally Posted by bellinoracing View Post
    If thats the case I will need at least a 30HP converter, and a phase perfect that size is not cheap.
    1) Haas machines are rated like shop vacs. Can you really supply a '6hp' shop vac from a standard 120v 15amp outlet?

    2) Save up and buy the PT-380 Phase Perfect anyway. You will not outgrow it when you add more machines or get a true 30hp machine. I love my PT-380.

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    I realize this thread is a couple of months old, but if somebody reads it hope they can add specific answers to the OP's question, similar to those posted by pvsora and drewboyer. I would like to know too what the actual electrical requirements for a current model Haas VF1/VF2 are.

    It is widely known that some manufacturers like to overstate the ratings in their machines for marketing purposes. However, they are required to provide accurate information in the machine tool identifcation nameplate on the back of the machine, so this is a reliable source of information of the machine actual ratings.

    If you have or operate a Haas VF mill, please provide:

    Machine model and year
    machine input voltage (I assume all VF mills require 3 phase electricity)
    full load amperes (a good indicator of the minimum circuit breaker size needed to run the machine under normal load conditions)
    largest load amperes (an indicator of the spindle motor size)
    size of circuit breaker in the machine electrical cabinet.
    spindle max rpm and type (belt, direct drive, gearbox/no gearbox)

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    Drew, what phase converter are you using with your VF3 on your 100 amp breaker, I am looking at a VF2 which is calling out 50A. American Rotary does not have a product that works but I have seen the Phase Perfect does. Just looking for a more cost-effective solution if possible. Thanks!


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