Overview
The Banner QS18VN6LPQ is a polarized retro-reflective photoelectric sensor from the WORLD-BEAM QS18 series. This NPN solid-state sensor delivers reliable object detection across a 3.5-meter sensing range and is widely used in material handling, bottling, labeling, and conveyor applications. The visible red LED beam provides clear visual feedback, and the M8 pigtail connector ensures straightforward integration into control systems.
Key Features
- Polarized Retro-Reflective Detection: Detects objects reliably without interference from ambient light or reflective surfaces.
- 3.5-Meter Sensing Range: Extended range suitable for conveyor systems and material positioning.
- NPN Complementary Solid-State Output: NO/NC switchable; integrates easily with PLC and control logic.
- 10–30V DC Supply: Compatible with standard industrial 12V and 24V DC power supplies.
- M8 Pigtail QD Connector: 150 mm (6 in) quick-disconnect for field serviceability.
- IP67 / NEMA 6 Rating: Sealed against dust and water immersion; rated for harsh manufacturing environments.
Technical Specifications
- Sensing Method: Polarized Retro-Reflective
- Sensor Output: Complementary Solid-State NPN (NO/NC)
- Sensing Range: 0–3.5 m
- Supply Voltage: 10–30V DC
- Indicator Light: Visible Red LED
- Connection: M8 Pigtail with QD connector, 150 mm cable
- IP Rating: IP67
- Housing Material: Thermoplastic with acrylic lens
- Operating Temperature: −20 to +70°C
- Series: WORLD-BEAM QS18
- Manufacturer: Banner Engineering
Typical Applications
The Banner QS18VN6LPQ is deployed in:
- High-speed bottling and labeling equipment for object detection and triggering.
- Conveyor systems requiring reliable position sensing and edge detection.
- Packaging machinery and palletizing systems.
- Parts counting and verification in assembly lines.
- Equipment presence and alignment detection where polarized retroreflective sensing eliminates false triggers from shiny surfaces.
Compatibility & Replacements
Compatible With
- All standard industrial PLC controllers accepting 10–30V DC NPN inputs.
- Safety relay modules and hardwired control logic with DC inputs.
- CompactLogix, ControlLogix, and SLC 500 (via appropriate 24V DC input modules).
- Siemens S7-1200, S7-1500, and TIA Portal environments.
- Mitsubishi FX, Q-Series, and iQ-R PLCs.
- Omron CJ, CP, and NJ series controllers.
- Standard conveyor control systems and motion control applications.
Replaces / Drop-In Replacement For
The Banner QS18VN6LPQ may serve as a direct replacement for earlier WORLD-BEAM QS18 variants with the same pigtail connector and NPN output configuration. When substituting sensors, verify that the existing reflector and mounting geometry match. Confirm final alignment after installation as the QS18VN6LPQ has the same beam characteristics as earlier generation QS18 models but may require minor bracket adjustment depending on site conditions.
Works With
- Communication Protocols: Integrates as a discrete digital input (no protocol required); signal is simple NO/NC switch closure.
- Software Platforms: Studio 5000, RSLinx, TIA Portal, Mitsubishi GX Works, Omron Sysmac Studio.
- Networks: EtherNet/IP and PROFINET environments (via IO modules or gateways accepting DC sensor inputs).
- Fieldbuses: DeviceNet, CANopen, and MODBUS applications requiring discrete input adaptation.
- Reflectors: Requires Banner retroreflective tape or corner-cube reflectors (90° angle recommended for optimal range).












