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Author Topic: control  (Read 919 times)

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Offline g44Topic starter

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control
« on: January 07, 2010, 01:26:17 PM »
control motor
« Last Edit: January 23, 2010, 04:17:46 PM by g44 »

Offline z.s.tar.gz

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Re: control
« Reply #1 on: January 07, 2010, 03:40:17 PM »
Please post a model number and/or pictures.
We aren't there. We can't see it.
Save yourself the typing. Just call me Zach.

Offline SmAsH

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Re: control
« Reply #2 on: January 07, 2010, 03:41:12 PM »
Sounds like you have a stepper motor there. Google for how they work and you will understand that you turning it pushed it enough around for it to get to the next step.
You probably saw a jerking like action where it would speed up during one 90o of rotation.
Steppers need special driver circuits so google for those too.
Howdy

Offline waltr

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Re: control
« Reply #3 on: January 07, 2010, 04:53:50 PM »
I believe the OP has an AC motor. This may use capacitive start, thus it goes at max speed once the OP turns the shaft.
They can also be two or three speed and reversible.

But without a picture and/or link we can only guess.
This may help:
http://www.applianceaid.com/direct_drive_motor.html

Offline Soeren

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Re: control
« Reply #4 on: January 07, 2010, 05:53:58 PM »
Hi,

Yes, it's a 3 phase AC motor with start capacitor.
You could get hold of a (high power) frequency converter, but it would be cheaper to store it for another purpose and get a universal motor from eg. an old vacuum cleaner - they're easy to control.

What do you need to power?
(Probably not a 'bot with an extension cord ;D)
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

 


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