What this light curtain covers
The Omron F3SJ-A2245P30 is a Type 4 safety light curtain from the F3SJ-A series, designed for hand and arm detection with a 30 mm detection capability. That 30 mm figure means it catches a hand or arm reaching into the hazard zone — finger protection requires a finer pitch, but for palm-through-arm guarding this is the standard spec. The protective height spans 2245 mm, delivered by 90 beams at a 25 mm pitch, so it covers a tall access area in a single pair of emitter and receiver.
Operating range runs from 0.2 m to 7.0 m, which covers most guarding distances from a press or robot cell to the operator station. Supply is 24 VDC, standard for safety circuits. The IP65 rating means the housings and optics withstand washdown and airborne dust — suitable for food processing lines or machining cells where coolant mist is present.
Built-in functions that matter on the line
The F3SJ-A2245P30 includes blanking and muting functions. Blanking lets you disable specific beams for a fixed obstruction — a part fixture that must pass through the curtain — without disabling the whole safety zone. Muting temporarily suspends the safety output during a defined material-handling cycle, such as a pallet entering the guarded area. Both are configured via the controller, not hard-wired, which simplifies changeovers.