Marlin X axis endstop

For some reason all my endstops work well I've unplugged it tested it (tested fine) but when plugged up to my ramps 1.4 board no matter if it's pressed or not it always reads triggered.. Anyone else have this issue?

Edited 1 time(s). Last edit at 04/25/2019 04:01PM by MikeCL.

I think Marlin defaults to normally closed end stops, so when you connect your end stops with the nornally open terminal it will show the endstop is triggered. This is done so that it will also trigger if the endstop plug comes loose or a wire breaks. You can either change the endstop or change the firmware to invert the triggering.

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Kind regards
Imqqmi

NFAN CoreXY printer:
[reprap.org]