• A Blocked Condition (receiver)—The red Status indicator is on, the amber Reset indicator is on, one or more
red Zone indicator(s) are on, identifying the location of the blocked beams, and the number of blocked
beams is displayed. Proceed to
Note: If beam 1 is blocked, Zone indicator 1 is red and all others are off. Beam 1 provides the
synchronization signal.
Note: If the Test input is open, the 3-digit Diagnostic Display indicates the total number of beams in the
system (minus one) and all Zone indicators are red.
5.8.3 Optical Alignment
WARNING:
• Hazard exposure
• Failure to follow these instructions could result in serious injury or death.
• Verify that no individuals are exposed to any hazard if the output signal switching device (OSSD)
outputs turn on when the emitter and receiver become aligned.
1. Verify the sensor mounting.
2. Verify the optimal alignment, adjusting the sensor rotation with the power on:
a. 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 Edge
Straight Edge
Note: At power-up, all indicators are tested (flash), then the Scan Code is displayed.
b. Turn on the power to the emitter and the receiver. If Channel #1 beam is not aligned, the Status and Zone 1
indicators are red, and the Diagnostics Display indicates "CH1". Zone indicators 2–8 are off.
c. If the green Status and amber Reset indicators are on, go to the next step. If not, rotate each sensor (one at
a time) left and right until the green Status indicator is on. (As the sensor rotates out of alignment, the red
Status indicator turns on). As more beams are aligned, the Zone indicators turns from red to green and the
number of blocked beam indicators decreases.
Note: If the emitter Test input is open, the 7-segment Display indicates the total number of
beams in the system (minus one) and all Zone indicators are red (except for 10-beam
systems, where the Zone 1 indicator is green).
EZ-SCREEN
®
14/30 mm Safety Light Screen
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