Lanbao PSM-YC - M18 Background Suppression Photoelectric Sensor The Lanbao PSM-YC is an M18 cylindrical photoelectric sensor designed for 10 cm background-suppression detection in a metal cylindrical housing where the background should be ignored. It uses background suppression sensing, 10 cm rated distance, unadjustable, Red light, 660 nm, NPN NO/NC or PNP NO/NC switching, and a 10-30 VDC supply range, giving machine builders a compact sensor format for part presence, package detection, material handling, and automation input signals. This PSM version uses fixed cable wiring, max. 0.5 ms response time, max. 20 mA consumption current, max. 100 mA load current, short-circuit protection, overload protection, reverse-polarity protection, IP67 protection, and CE certification. For nearby choices in the Lanbao photoelectric range, compare Lanbao PSM-YC-E2 connector version, Lanbao PSS-YC plastic background suppression sensor, and Lanbao PSM-BC10 short-range diffuse sensor before selecting the final sensing mode or wiring format. Commissioning should be done with the actual target, bracket, cable length, reflector where required, and machine background in place. Confirm the green stability indicator and yellow output indicator, verify the NO/NC wiring mode, and record the final sensor position so replacement units can be aligned consistently during maintenance. Technical Specifications Parameter Value Series Lanbao PSM-YC Model reference PSM-YC10 Sensor format M18 cylindrical photoelectric sensor Housing family PSM Detection type background suppression Rated or detection distance 10 cm rated distance, unadjustable Light source Red light, 660 nm Spot or target reference 8 x 8 mm at 10 cm Output type NPN NO/NC or PNP NO/NC Response time max. 0.5 ms Supply voltage 10-30 VDC Consumption current max. 20 mA Load current max. 100 mA Voltage drop max. 1.8 V Circuit protection Short-circuit, overload, and reverse-polarity protection Connection 2 m PVC cable Adjustment Fixed 10 cm rated distance Ambient light immunity Anti-sunlight interference up to 10,000 lux; incandescent interference up to 30,000 lux Operating temperature -25 to 55 deg C Storage temperature -35 to 70 deg C Protection and certification IP67, CE Material Nickel copper alloy housing with PMMA filter SKU variants Lanbao-PSM-YC10DPBR, Lanbao-PSM-YC10DNBR Board Layout & Label Guide Optical face - Front sensing window for background suppression; keep it clean, aligned, and protected from impact. M18 threaded body - Mounts through a bracket or panel using M18 nuts; avoid excessive torque. Power indicator - Green LED confirms power and stable operating state during setup. Output indicator - Yellow LED shows switching state, short-circuit, or overload reference condition. Distance setting - 10 cm fixed distance, no sensitivity adjustment; mount and align in final position. 2 m PVC cable - Fixed cable output for direct cabinet wiring; provide strain relief near moving equipment. Brown lead - Connect to the positive 10-30 VDC supply in typical industrial wiring. Blue lead - Connect to 0 VDC common and share reference with the input module. Black lead - Main switching output to PLC, relay interface, or protected digital input. White lead - NO/NC mode reference; Lanbao documentation specifies positive or floating for NO mode and negative for NC mode. Installation note - Use background suppression when target color varies or when a nearby machine surface could otherwise trigger the sensor. Packing List 1 x Lanbao PSM-YC photoelectric sensor M18 nut set and instruction manual reference Current store bundle contents may vary by SKU and warehouse batch FAQ Q: What is the Lanbao PSM-YC used for? A: It is used for industrial object detection in conveyors, packaging machines, fixtures, handling systems, and automated inspection stations. Q: What sensing mode does this model use? A: This model uses background suppression sensing with 10 cm rated distance, unadjustable and Red light, 660 nm. Q: Can it connect to a PLC? A: Yes. Use a PLC digital input module that matches the selected NPN or PNP output and the 10-30 VDC supply system. Q: What is the difference between NPN and PNP variants? A: NPN variants sink current to the input common, while PNP variants source current to the input. Choose the type required by the controller input card. Q: Is the sensor suitable for harsh equipment areas? A: It has IP67 protection and CE certification, but the full installation still depends on cable sealing, connector tightening, mounting direction, and enclosure design. Q: How is NO or NC mode selected? A: Lanbao documentation uses the white wire as the NO/NC mode reference. Follow the wiring diagram for the exact variant being installed. Q: Why does the output switch unreliably? A: Check supply voltage, NPN or PNP wiring, indicator status, target position, and alignment; the fixed 10 cm range helps ignore background surfaces behind the target. Q: Should I choose cable or M12 connector? A: Choose the cable version when fixed wiring is acceptable and the sensor will not be removed frequently.
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