The FM1 is the master control module for all F-Series Safety Systems. It contains the regulated power supply, 2 safety contact outputs (PGC), external/internal relay monitoring circuit and system indication along with the input for one safety switch sensor and it's
indication outputs.

The FM1 and one Safety Switch Sensor are all that is required for a system monitoring one guard. Simply clip the FM1 into a suitable control cabinet, fit the safety switch sensor to the guard and connect the supply and the volt free control contacts as shown in the installation guide.

For larger systems use the FX1 & FX2 Extender units with the FM1.