Overview
The Banner QS18VN6DQ8 is a compact WORLD-BEAM QS18 series all-purpose photoelectric sensor designed for general-purpose industrial detection applications. This diffuse-mode unit operates on 10-30VDC input voltage and delivers complementary solid-state NPN output through an M12 integral quick-disconnect connector. With IP67 environmental protection and NEMA 4X rating, the QS18VN6DQ8 suits harsh factory floors, washdown areas, and outdoor installations where moisture and contaminants are present.
Key Features
- WORLD-BEAM diffuse detection technology—450mm sensing range ideal for general packaging, parts counting, and conveyor applications
- Universal 18mm threaded barrel design—drop-in replacement for hundreds of competitor photoelectric sensor styles
- Solid-state NPN complementary output—reliable switching without mechanical contacts or bounce
- IP67 enclosure + NEMA 4X rating—fully sealed against dust, water spray, and corrosive environments
- M12 integral quick-disconnect connector—fast field installation and replacement without hand-wiring
Technical Specifications
The following table summarizes key operating parameters and physical characteristics:
| Parameter | Specification |
| Sensor Type | Photoelectric, Diffuse Mode |
| Input Voltage | 10–30 VDC |
| Output Type | Complementary Solid-State NPN |
| Sensing Range | 450 mm (diffuse) |
| Connector Type | M12 Integral Quick-Disconnect |
| Environmental Rating | IP67 / NEMA 4X |
| Weight | 1.72 lbs (0.78 kg) |
| Barrel Thread | 18 mm Threaded |
| Series | QS18 All-Purpose |
| Manufacturer Part Number | QS18VN6DQ8 (Banner 66459) |
Typical Applications
- Conveyor line part detection and counting
- Packaging machine presence verification
- Assembly line object detection and positioning feedback
- General industrial proximity sensing in wet or contaminated environments
- Material handling and sorting systems
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix, ControlLogix, and MicroLogix PLCs with analog/digital input modules
- Siemens S7-1200, S7-1500, and other controllers accepting 10-30VDC logic signals
- Omron, Schneider Electric, and Mitsubishi PLCs with standard digital input cards
- Rockwell ControlLogix ethernet networks and CompactLogix local I/O
- Industrial automation systems using standard 24VDC control logic levels
Replaces / Drop-In Replacement For
The QS18VN6DQ8 is compatible with legacy and OEM sensor mounting patterns due to its universal 18mm threaded barrel design. Verify mechanical mounting and electrical interface compatibility with your original sensor documentation before ordering. Common predecessor models in diffuse-mode 450mm range include other QS18 variants with 18mm barrels; consult Banner Engineering or your system integrator for specific cross-references.
Works With
- Studio 5000 Logix Designer (Allen-Bradley)—PLC input module signal acquisition
- TIA Portal (Siemens)—digital input configuration
- EtherNet/IP networks—via compatible gateway or distributed I/O nodes
- PROFINET controllers—via appropriate signal adapters
- Standard 24VDC industrial control buses and relay logic systems
