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Power Expander failure

Posted by WallyL 
Power Expander failure
September 03, 2014 01:45PM

I recently purchased a RepRap Power Expander to use on my new Velleman K8200 3d Printer. It was wired up exactly as per the Ultimaker 3D printer example given in [reprap.me] , but burnt out the first time it was used. Very disappointing.

It was supplied with 22V dc from a new MeanWell power supply; the bed resistance is 4,8 Ohm at 10 deg C.
The control voltage from the Velleman board is 14,95 V dc, with correct polarity.

Any advice or suggestions would be welcome, as I could not find contact details on reprap.me website.
Re: Power Expander failure
September 03, 2014 05:06PM
Contact details are in the customer service section on the left of every page. Email address is info@reprap.me; phone is +45 484 23232.

[3DKarma.com] - suppliers of quality, affordable 3D printer kits and filament for the UK market.
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