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Subject: using UCN5804B chip to control stepper from parallel port problem

Date: 04/25/03 at 10:33 AM
Posted by: robert harpham
E-mail: robert@fenlanarena.co.uk
Message Posted:

Hi

i am using a UCN5804B Chip to control a stepper motor from my PCs parallel port.
circuit diagram is here.
http://www.fenlanarena.co.uk/images/rob/circuit.jpg

when i pules the pin connected to my enable chip line the motor starts to try and turn but turns very slowly and not freely, i have tryed difernt pules lengh slow and fast but still does the same trying to turn very slow. i have tryed swoping the motor leads around but still nuthink. the motor i am using is a mclennan 16HS-006

any help would be gratefull, if u want to know anythink just ask.
many thanks
robert


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