1 Topic by bikeride

  • bikeride
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  • Registered: 2014-04-20
  • Posts: 1

Topic: D8 (heatbed port) still on 12V

Hello,

I have problem with my RAMPS 1.4, port D8 which is used for powering an heatbed runs constantly on 12v, it not depends if i turn off heating of bed or turn on.

Anyone can help me?

Thanks

2 Reply by Hazer

  • Hazer
  • Hazer
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  • Registered: 2013-07-19
  • Posts: 478

Re: D8 (heatbed port) still on 12V

D8 port closes to ground. You will measure 12V on one pin and measure floating on the other pin of D* when its is off. When it is on, the floating pin will close to 0V.

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