Need Help! '92 VF-2 AC Servo Equivalent


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Thread: '92 VF-2 AC Servo Equivalent

  1. #1
    Member edge540's Avatar
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    Default '92 VF-2 AC Servo Equivalent

    I cant find the specs for the original Brushed DC motors nor do I have all the elements required to create an accurate motion profile. I have come across second hand info that states the motors are 3000 oz/in (21 Nm) which I would assume is peak output and 3000 rpm. Can someone please offer continuous/peak torque requirements and rpm or a known motor spec or part number of an AC brushless version for this application? Also what is the actual resolution of the original system or later models? I see the encoders are 2000 cpr but with a 6 mm lead screw this equates to .000118". The control dial allows .0001" increments so it must be better than the .000118". Do the A/B channels mean 2000 lines are actually 4000 signals for 1 rotation? Thanks

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    Community Moderator Jim Dawson's Avatar
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    Default Re: '92 VF-2 AC Servo Equivalent

    These guys might be worth a look DMM | AC SERVO DRIVE | AC SERVO MOTOR | ROTARY ENCODER

    I have been very happy with their products.

    Yes, 2000 lines should equate to 4000 pulses/rev.

    Jim Dawson
    Sandy, Oregon, USA


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    Member edge540's Avatar
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    Quote Originally Posted by Jim Dawson View Post
    These guys might be worth a look DMM | AC SERVO DRIVE | AC SERVO MOTOR | ROTARY ENCODER

    I have been very happy with their products.

    Yes, 2000 lines should equate to 4000 pulses/rev.
    Thanks for the link Jim. They seem very reasonable cost wise. That's a plus since this machine has been retired to hobby use

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'92 VF-2 AC Servo Equivalent

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'92 VF-2 AC Servo Equivalent