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Unread 03-04-2011, 14:34
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Re: Iterave design, 2011
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Originally Posted by Hawiian Cadder View Post
i think were good, but does anyone see a problem with continuously stalling a rs550 at 14 amps?
Absolutely. The BB motors get their cooling from a fan attached to the armature, if the motor is stalled, no cooling. We had a deffective gearbox with a 550 for the arm on a 20 amp fuse. It got unbearblely hot within 30 seconds and thermal shut off in under a minute.

What have your tests shown?
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Unread 03-04-2011, 15:38
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Re: Iterave design, 2011
we did not have a whole lot of time to test it. 14 amps is not too much. i will talk to the programmers and see if we can change it to test for a tube every second or something.
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Unread 03-04-2011, 21:18
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Re: Iterave design, 2011
Quote:
Originally Posted by Hawiian Cadder View Post
14 amps is not too much.
14 amps at 12 volts is 168 watts. You'll fry the motor in short order if it isn't spinning and cooling itself.
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