VFD setup for H.S.D 6.8kw spindle

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Thread: VFD setup for H.S.D 6.8kw spindle

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    Default VFD setup for H.S.D 6.8kw spindle

    I have aquired a few of these spindles and I would like to hook one of these up to my own CNC.

    In order to do this I need a VFD for this, and I have got 2 different ones to try out.

    I have a Control techniques Unidrive UNI2402 and a Hitachi WJ200-150HFE drive to play with.

    I'm trying to test it out on the bench, with a speed potmeter attached, to the Hitachi drive, and it keeps going into overload.

    I have set these paramters for now

    A001 - 00
    A002 - 2
    A003 - 50Hz
    A004 - 400Hz
    A044 - 1
    A082 - 380v
    B012 - 16A
    H003 - 7,5kw (goes in speciel increments so 7,5kw was the closest)
    H004 - 2 poles

    Am I missing something??

    The Unidrive VFD was the one that was placd on the Biesse machine the spindles came of, I cannot get into controlling the speed manually with a Speedpot..

    I have tried most anything already, and I'm looking for some serious help now.

    So if anyone is really good at the one or the other, then please help me out.

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    Default Re: VFD setup for H.S.D 6.8kw spindle

    Quote Originally Posted by IN-WondeR View Post
    I have aquired a few of these spindles and I would like to hook one of these up to my own CNC.

    In order to do this I need a VFD for this, and I have got 2 different ones to try out.

    I have a Control techniques Unidrive UNI2402 and a Hitachi WJ200-150HFE drive to play with.

    I'm trying to test it out on the bench, with a speed potmeter attached, to the Hitachi drive, and it keeps going into overload.

    I have set these paramters for now

    A001 - 00
    A002 - 2
    A003 - 50Hz
    A004 - 400Hz
    A044 - 1
    A082 - 380v
    B012 - 16A
    H003 - 7,5kw (goes in speciel increments so 7,5kw was the closest)
    H004 - 2 poles

    Am I missing something??

    The Unidrive VFD was the one that was placd on the Biesse machine the spindles came of, I cannot get into controlling the speed manually with a Speedpot..

    I have tried most anything already, and I'm looking for some serious help now.

    So if anyone is really good at the one or the other, then please help me out.
    There would be nothing about your spindle that would be using 50Hz so you have something incorrect with that parameter, what are your motor spec's??

    A003=400Hz at 50Hz you have a good chance of damaging your spindle

    Mactec54


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    Default Re: VFD setup for H.S.D 6.8kw spindle

    Quote Originally Posted by mactec54 View Post
    There would be nothing about your spindle that would be using 50Hz so you have something incorrect with that parameter, what are your motor spec's??

    A003=400Hz at 50Hz you have a good chance of damaging your spindle
    A003 is the base frequency of the spindle, as I'm in the EU we run a 50 cycle electricity grid

    Motor specs is as follow

    Voltage: 380v
    Amp: 16A
    RPM @ 200Hz is 12000
    Max RPM @ 400Hz is 24000
    cos: 0,8
    2 pole motor, 3 phase



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    Default Re: VFD setup for H.S.D 6.8kw spindle

    Quote Originally Posted by IN-WondeR View Post
    A003 is the base frequency of the spindle, as I'm in the EU we run a 50 cycle electricity grid

    Motor specs is as follow

    Voltage: 380v
    Amp: 16A
    RPM @ 200Hz is 12000
    Max RPM @ 400Hz is 24000
    cos: 0,8
    2 pole motor, 3 phase
    The base frequency of the spindle is 400Hz look at your spindle spec's you just posted, it has nothing to do with 50Hz electrical grid , unless you are running a 50Hz Ac 3 phase motor and you are not

    You need these ( 2 ) set as well

    A061=400

    A062=200

    Mactec54


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    Default Re: VFD setup for H.S.D 6.8kw spindle

    Good god man, you are a genious... It never occured to me to run the basefrequency as 400..

    But why would I want to set lower to 200Hz??

    Not it trips the Over Voltage on Decelleration... So I need to play with things, but now the spindle spins up..



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    Default Re: VFD setup for H.S.D 6.8kw spindle

    Typically you have to decelerate slower unless you have external braking resistors. Some drives have bigger internal resistors than others for a given HP, not sure about yours


    Sent from my iPhone using Tapatalk Pro



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    Default Re: VFD setup for H.S.D 6.8kw spindle

    I haven’t mounted a braking resistor yet. I have it on the shelf. Right now it was just a test to get the spindle running. So right now I’m one step closer at getting ATC on my machine.



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    Default Re: VFD setup for H.S.D 6.8kw spindle

    Braking resistor mounted. Now it can stop in 2 secs flat.



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    Default Re: VFD setup for H.S.D 6.8kw spindle

    Quote Originally Posted by IN-WondeR View Post
    Good god man, you are a genious... It never occured to me to run the basefrequency as 400..

    But why would I want to set lower to 200Hz??

    Not it trips the Over Voltage on Decelleration... So I need to play with things, but now the spindle spins up..
    Just going off what you posted, you posted 200Hz in the spec's, if it is air cooled then this is normal, you can try lower but watch for over heating, all these Spindles have a minimum speed they can safely run at

    Trips on Deceleration because you have not set the deceleration time correct

    Large spindles you need a Braking Resistor if you want to stop fast, if not you would have to adjust the Deceleration Time

    F003=10 By default you would have to make this number larger, without a Braking resistor

    Mactec54


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    Default Re: VFD setup for H.S.D 6.8kw spindle

    Quote Originally Posted by mactec54 View Post
    Just going off what you posted, you posted 200Hz in the spec's, if it is air cooled then this is normal, you can try lower but watch for over heating, all these Spindles have a minimum speed they can safely run at

    Trips on Deceleration because you have not set the deceleration time correct

    Large spindles you need a Braking Resistor if you want to stop fast, if not you would have to adjust the Deceleration Time

    F003=10 By default you would have to make this number larger, without a Braking resistor
    Even without the braking resistor I could stop it with F003 set at 10.

    And yes the spindle is aircooled, but it's an electric fan, so it will not be dependant on the rotation of the spindle.



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    Default Re: VFD setup for H.S.D 6.8kw spindle

    Quote Originally Posted by IN-WondeR View Post
    Even without the braking resistor I could stop it with F003 set at 10. And yes the spindle is air cooled, but it's an electric fan, so it will not be dependent on the rotation of the spindle.
    So what was your problem then on Deceleration, you posted this, Not it trips the Over Voltage on Deceleration... So I need to play with things, but now the spindle spins up..


    6000 RPM is most likely your limit, use what the manufacture recommends for the minimum speed, you have the spindle motor spec's

    If you post the model number I will give you what the minimum speed is, it has nothing to do with the fan unless you know better than the manufacture of your spindle motor

    There spindles have a minimum speed regardless of the fan, some are 12,000 RPM some are 6,000 RPM this depends on what model spindle you have

    Mactec54


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    Default Re: VFD setup for H.S.D 6.8kw spindle

    Quote Originally Posted by mactec54 View Post
    So what was your problem then on Deceleration, you posted this, Not it trips the Over Voltage on Deceleration... So I need to play with things, but now the spindle spins up..


    6000 RPM is most likely your limit, use what the manufacture recommends for the minimum speed, you have the spindle motor spec's

    If you post the model number I will give you what the minimum speed is, it has nothing to do with the fan unless you know better than the manufacture of your spindle motor

    There spindles have a minimum speed regardless of the fan, some are 12,000 RPM some are 6,000 RPM this depends on what model spindle you have
    The problem was that I have decel set at 6 second, that tripped it.

    I only have the specs on the motor,. not the exact modelnumber, as it's not imprinted on the spindle itself. They are marked Biesse iso30 but that's a wide variety. So you see it's difficult for me to find a spec sheet with minimum speed since I do not have the full modelnumber.



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    Default Re: VFD setup for H.S.D 6.8kw spindle

    Quote Originally Posted by IN-WondeR View Post
    The problem was that I have decel set at 6 second, that tripped it.

    I only have the specs on the motor,. not the exact modelnumber, as it's not imprinted on the spindle itself. They are marked Biesse iso30 but that's a wide variety. So you see it's difficult for me to find a spec sheet with minimum speed since I do not have the full modelnumber.
    Post a photo then I may be able to match it up from that, they have many models, 6000 RPM should be safe, just watch for over heating when you are using it that would be

    A062=100

    Mactec54


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VFD setup for H.S.D 6.8kw spindle

VFD setup for H.S.D 6.8kw spindle