• EDM is configured and wired per application requirements (1-channel or no monitoring, seeExternal DeviceMonitoring on page 41)6.3.2 Initial Power-Up1. Inspect the area near the light screen for reflective surfaces, including work pieces and the guarded machine.Reflective surfaces may cause light beams to reflect around a person in the light screen, preventing the person frombeing detected and not stopping the machine motion (seeAdjacent Reflective Surfaces on page 24).2. Eliminate the reflective surfaces as much as possible by relocating, painting, masking, or roughening them.Remaining problem reflections will become apparent during the trip test.3. Verify that power is removed from the EZ-SCREEN LS Basic System and from the guarded machine and that theOSSD safety outputs are not connected.4. Remove all obstructions from the light screen.5. With the power to the guarded machine Off, make external device monitoring (EDM), power, and earth groundconnections on both the emitter and receiver cables (seeReference Wiring Diagrams on page 43). The +24 V dc(brown wire) and 0 V dc (blue wire) should be connected to a SELV-rated supply and GND (green/yellow wire) toearth ground. If the installation does not allow direct connection to earth ground via the cordset, the earth groundmust be provided via the mounting brackets.6. Power up the EZ-SCREEN LS Basic System only.7. Verify that the input power is present to both the emitter and the receiver. At least one indicator on both the emitterand the receiver should be On and the start-up sequence should cycle.8. Watch both the emitter and the receiver Status indicators and the receiver Alignment indicators to determine thelight screen alignment status:• An Emitter Lockout Condition—the emitter Status indicator is single-flashing red; the receiver Statusindicator is solid red, and the receiver's 7-segment display reads CH1.• A Receiver Lockout Condition—the receiver Status indicator is single-flashing red, with Alignment and Runmode indicators Off, and the receiver 7-segment display shows an Error Code.• Normal Operating Mode (emitter)—the Status indicator is solid green.• Clear (Run) Condition (receiver)—the Status indicator is solid green, and the Run mode indicator is solidamber. All Alignment indicators are solid green.• A Blocked Condition (receiver)—The Status indicator is solid red, Run mode indicator is solid amber, one ormore Alignment indicator(s) are solid red, identifying the location of the blocked beams, and the number ofblocked beams is displayed.Note: If beam 1 is blocked, the Alignment indicator 1 will be red and all others Off. Beam 1 providesthe synchronization signal.9. Proceed toOptical Alignment on page 36.6.3.3 Optical AlignmentCAUTION: Ensure that no individuals are exposed to any hazard if the OSSD outputs turn ON when the emitter andreceiver become aligned.Verify the optimal alignment, adjusting the sensor rotation with the power on:1. Verify that the emitter and the receiver are pointed squarely at each other. Use a straight edge (for example, a level)to determine the direction the sensor is facing. The sensor face must be perpendicular to the optical axis.Straight EdgeStraight EdgeIndicator LEDsAll OFFNote: At power-up, all indicators are tested (flash), then the Scan Code is displayed.2. Turn on the power to the emitter and receiver. If the Channel #1 beam is not aligned, the Status and Alignmentindicator 1 will be red, the Run mode indicator will be off, and the 7-segment display sequentially indicates CH1. Allthe Alignment indicators (2-n) will be off.EZ-SCREEN® LS Basic Safety Light Screen36 www.bannerengineering.com - Tel: 763.544.3164