Possible causes:
• The IR PE beams have been interrupted for the pre-set
period of time with the Ambush Alarm feature enabled
• Inadvertent activation of the Ambush Alarm feature
Solutions:
• Clear any obstruction from the path of the PE beams
• If the lenses are unobstructed, check the wiring between the PE beams and the controller
• Ensure that the PE beams are properly aligned
• If not required, disable the Ambush Alarm feature in Menu 6: IR Beams