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Revision to Power Wiring

Jason Znack

Connect the terminal block labelled POWER IN to your power supply (minimum 11V, maximum 25V). Make sure the wires you use are of adequate gauge to carry the current to supply the bed heater, extruder heater, stepper motors and electronics.
-'''Caution: be sure to get the polarity right!''' The board is not protected against reverse polarity. The positive wire from the power supply goes to the terminal marked + which is the one nearest the stepper motor connector side of the board.
+'''Caution: be sure to get the polarity right!''' The board is not protected against reverse polarity. The positive wire from the power supply goes to the terminal marked +. Check the wiring diagram for your board if you're unsure. The polarity (+ and -) is also silk screened onto the board.
If you use stranded core wire, '''do not''' tin the ends of the wire, because if you do then the heat generated by the current will cause the solder to flow and the connection will become loose. Preferably, use bootlace ferrules on the end of the wires, as supplied with the Duet 2 Wifi and Ethernet.

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