Relay safety monitor 3NO output 24VAC/DC

The MSR127RTP can be connected in three different input wiring configurations: one normally closed, two normally closed or with two PNP connections from a light curtain. When connected in the two normally closed fashion, it checks for cross faults across the two inputs. When connected to light curtains, the light curtain must perform the cross fault detection. It has a monitored manual reset and has an automatic/manual reset. Models with automatic/manual reset can have the reset jumpered or can be converted to an unmonitored manual reset by adding a normally open switch in the monitoring loop. Models with monitored manual reset provide checking of the output monitoring circuit. The outputs include three normally open safety-rated outputs as well as one normally closed auxiliary output. The safety outputs have independent and redundant internal contacts to support the safety function. The auxiliary output is a nonsafety output intended to provide an external signal about the status of the safety outputs.