SE SERIES INSTRUCTION MANUAL

Instructions manual SE series7.2 Alignment modeIn this condition the outputs are OFF.• SAFE/BREAK LED:SAFE GREEN LED when ON it shows that no objects have beenintercepted by the device.BREAK RED LED when ON it shows that the receiver and theemitter units are not aligned, or that an object has been intercepted.• ALIGN HIGH LED: (yellow) when ON, it shows the correctalignment of the last TX optic with the corresponding RX optic(upper side of the device).• ALIGN LOW LED: (yellow) when ON, it shows the correctalignment of the first TX optic with the corresponding RX optic (lowerside of the device).• POWER ON LED: (green) when ON, it shows that the unit iscorrectly supplied.7.3 Operating mode• SAFE/BREAK LED:SAFE GREEN LED when ON it shows that no objects have beenintercepted by the device.BREAK RED LED when ON it shows that one object has beenintercepted; in this condition the outputs are OFF.• ALIGN HIGH LED: (yellow) when continuously ON it shows that itis necessary to press the TEST/START button to reset the device inconsequence of an object interception. This occurs only when thedevice runs under the manual reset mode.• ALIGN LOW LED: (yellow) when continuously ON it shows thepresence of dust on the emitter and/or receiver surfaces. Thissignalling is only a warning; the device continues to operate.• ALIGN LOW LED: (yellow) when blinking it shows the presence ofa short-circuit on the outputs. This signalling is only a warning; thedevice continues to operate.The LEDs located on the emitter (TX) have the following meanings:• SAFE LED (yellow): when ON, it shows that the unit is emittingcorrectly.• POWER ON LED (green): when ON, it shows that the unit iscorrectly supplied.37