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Thread: spindle motor drawing 10 times more current with encoder...

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    Default spindle motor drawing 10 times more current with encoder...

    A spindle motor : Saccardo VA25C 's winding was burnt due to water.Got the motor re-wind.Also replaced the encoder=Heidenhain AK ERM 220.After the rewinding and encoder replacement the motor is taking 13 Amps of current without encoder and is drawing 130 to 140 Amps of current if the encoder is installed.The ampere values stated above are the values that are shown on the display of the inverter drive (VFD)=Omron-Yaskawa Varispeed F7.The specs of motor : 37 KW / 75 Amp / 400 V / 6 Pole / F nom =75 Hz / 1500 rpm -nom / 8000 rpm- max.Can anybody help?

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    Default Re: spindle motor drawing 10 times more current with encoder...

    you need know how to operate the control panel, then you need change the parameter according to the operation manual .

    www.invoee.net INVOEE, your reliable inverter expert.

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    Default Re: spindle motor drawing 10 times more current with encoder...

    Quote Originally Posted by prash View Post
    A spindle motor : Saccardo VA25C 's winding was burnt due to water.Got the motor re-wind.Also replaced the encoder=Heidenhain AK ERM 220.After the rewinding and encoder replacement the motor is taking 13 Amps of current without encoder and is drawing 130 to 140 Amps of current if the encoder is installed.The ampere values stated above are the values that are shown on the display of the inverter drive (VFD)=Omron-Yaskawa Varispeed F7.The specs of motor : 37 KW / 75 Amp / 400 V / 6 Pole / F nom =75 Hz / 1500 rpm -nom / 8000 rpm- max.Can anybody help?
    Hi, Did you solve the problem?, I have a similar problem, do you have the instructions to replace bearings of a Saccardo VS 13, I have been able to dissassemble front bearings`housing

    Best regards
    Ed
    Attached Thumbnails Attached Thumbnails saccardo vs13.jpg  

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