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Topic: Motor (Read 473 times)
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Noltus
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Arduino rocks
Motor
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August 16, 2010, 10:20:33 am »
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Hej
Jeg har en motor fra en gammel harddisk den har 4 ledniger,men jeg kan ikke lige finde ud af hvad slags motor det er,tror det er en step motor,har målt modstand over de 4 ledninger og de er
L=4,9 Ohm H=8,2 Ohm
1 2 3 4
1 H H L
2 H H L
3 H H L
4 L L L
Er der nogen der kan forklare lidt nærmere
Peter
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Last Edit: August 16, 2010, 10:21:35 am by Noltus
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Msquare
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Have you testrun your PDE file today?
Re: Motor
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August 22, 2010, 04:10:24 am »
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Jeg kan gætte.
4 ledninger "plejer" at være en enkel bipolar stepper. Unipolare har 5 eller 6. Jeg har leget lidt med at finde en "anderledes" forbindelse af two spoler, evt med midtpunkt for at forklare dine målinger og ikke fundet noget. Men 3 spoler med et fælles punkt giver mening.
Modstanden er fin, står der noget om spænding eller strøm på den? Du kan jo prøve at sætte strøm igennem med pin4 til 5V gennem en 100Ohm ( det blir cirka 40ma, dvs kan køres direkte fra Arduinoen ) og så sæt 0V til de andre 3 skiftevis og se om den rykker.
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