Photo sensor - receiver LX3RQ, part-sensing light curtain, 67mm, 0.3-2m, PNP/NPN, M12 5-pin

LX3RQ is the receiver of the Banner LX series light curtain, with a 67 mm light screen for part sensing. Photodiodes are spaced at 9.5 mm and recognise each emitter pulse separately, so the crosshatched beam pattern also detects thin objects such as a sheet of paper. In the standard range the smallest detectable object is 9.5 mm in diameter.

• Distance between emitter and receiver: 0.3...2 m (Normal), 0.15...0.6 m (Reduced)
• Output: bipolar, one PNP and one NPN output at the same time, 125 mA each, conducting while the beam is blocked
• Response time: 0.8 ms on, 6 ms off with a 5 ms pulse stretcher
• Supply: 10...30 V DC, less than 1 W
• Housing: aluminium profile, die-cast zinc endcaps, acrylic lens; overall length 113.4 mm
• Environment: IP65, -20...+70 °C
• Connection: 150 mm cable with an M12 5-pin male connector

The receiver is used for part ejection verification and package detection on conveyors, where the object may cross the beam field at any point. The range is selected with the grey wire: 5...30 V DC gives Normal, 0...2 V DC gives Reduced range. The amber LED shows a conducting output, the bicolour LED shows green in Normal and red in Reduced range, and a flashing red light indicates a receiver hardware fault. Resolution is best in the middle 80 % of the beam field, the receiver must be paired with an LX emitter of the same length and range, and the device is not intended for personnel protection.

Meets CE and UKCA requirements; UL listing E71083, Class 2 power, UL Environmental Rating Type 1.