X and Y endstops permanently triggered

I am at the point of being able to manually move the head around, but my x and y endstops (the limit switches supplied by ratrig) are constantly triggered. My wiring is shown in the attached images: y endstop is connected to octopus pro 446 and x endstop to ebb36. As far as I can tell my y axis wiring is as per the instructions. Any ideas? Thanks very much, John