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Power and Ground wire order for MK2 Heatbed  

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Art in Flight
(@art-in-flight)
Active Member
Power and Ground wire order for MK2 Heatbed

I am replacing the heatbed wiring on my Mk2 and forgot to take a picture of the molex connector to the mainboard before removing the wires. I've checked the assembly instructions but unfortunately there is no indication of which side is positive and which is negative. Would someone be able to clarify please?

 

Best Answer by JoanTabb:

the heatbed wires can be fitted either way round... and the heatbed will work, however the LED lamp is polarity conscious. so one way the led will not light!

in this picture  (Below) you can see the designation  of the wires on the Mini Rambo

and in this picture you can see VCC and GND

VCC on the heatbed connects to + on the Mini Rambo
GND on the Heatbed  connects to - on the Mini Rambo

Posted : 02/05/2022 9:08 pm
JoanTabb
(@joantabb)
Moderator
RE: Power and Ground wire order for MK2 Heatbed

the heatbed wires can be fitted either way round... and the heatbed will work, however the LED lamp is polarity conscious. so one way the led will not light!

in this picture  (Below) you can see the designation  of the wires on the Mini Rambo

and in this picture you can see VCC and GND

VCC on the heatbed connects to + on the Mini Rambo
GND on the Heatbed  connects to - on the Mini Rambo

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 03/05/2022 7:40 am
Art in Flight
(@art-in-flight)
Active Member
Topic starter answered:
RE: Power and Ground wire order for MK2 Heatbed

Exactly what I needed, thank you!

Posted : 04/05/2022 12:05 am
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