Solved Duet 2 PCB connectors got fried.
-
Hello.
I need to replace the pins on two of my stepper driver connectors can anyone point me to the right direction? If it is possible I would like to get higher quality ones for the PCB and the cable end.
-
@DigitalElf the part we use is this one https://uk.farnell.com/wurth-elektronik/61900411121/header-2-54mm-locking-4way/dp/1841378 which is a clone of this Molex part https://uk.farnell.com/molex/22-29-2041/connector-header-4pos-1row-2-54mm/dp/1360132. The rated current of the Molex part is 4A per contact, see https://www.farnell.com/datasheets/1867467.pdf. The Wurth part has a lower rating of 3A per contact, still more than the 2.5A max peak motor output current of the Duet 2.
When connectors get charred like that, it's usually an indication that the crimp connections to the mating contacts were not well made, causing the pins to overheat.
-
-
-
-