Re: Do DC permanent magnet motors get old and weak?
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Is your battery capable of providing 500 watts of power? Is your wiring capable of carrying nearly 21amps of current. That's what you're asking your power supply for.?
I have one or two supplies that can handle that much power, and a bunch that cannot. If the supply is rated for 24vdc, at 500 watts, it should have a bit over 20833ma or nearly 21 amps of current available.? If if it does, check your wiring and connections. Should be a minimum 12 AWG wire, per this calculator:? https://www.calctool.org/electronics/24v-wire-size
Bill in OKC?
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by: Good judgement comes from experience. Experience comes from bad judgement.? SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Monday, April 29, 2024 at 06:43:04 PM CDT, vt_biketim <tchock59@...> wrote:
Not specifically a Unimat question, but some people here seem to know a heck of a lot about brushed, DC motors. Do these permanent magnets get tired after a while? I scavenged one from a lawnmower labeled 24VDC/500 W/4300 rpm. When I hook it up directly to the 24V battery pack it only gets up to maybe 300 rpm. I replaced the brushes and made sure the bearings spun nicely and the battery is fully charged. Am I missing something, or is it junk?
Tim in Vermont
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Bill in OKC too