Wiring up the Alarm output on Leadshine AM882

[m_c]

That's because the sensors in that diagram have a NO output.

[JAZZCNC]

That's because the sensors in that diagram have a NO output.

Ah I didn't realise these where NC switches. . . Makes sense now.!! . . . Really should start reading the threads more often.!
(To be honest didn't even knew Proximity switches add NC - NO option never used them or thought about it. Thought they just sensed magnetic fields but on reflection it's obvious it's just an electrical circuit so could have and would need to both options to work has switches. . . Doh.!!)