Overview
The Banner QS18VN6LVQ8 is a World-Beam retroreflective photoelectric sensor from Banner Engineering’s QS18 all-purpose series. Designed for industrial automation and motion control, this sensor offers a 6.5-meter detection range with 10-30VDC flexible supply voltage. The retroreflective sensing mode uses a visible red LED beam that reflects off a corner cube reflector, making it ideal for detecting objects at distance with minimal setup complexity. Complementary solid-state NPN output with integral M12 Euro-style quick-disconnect connector enables fast installation and removal.
Key Features
- 6.5-meter detection range with visible red LED light
- Retroreflective (retro) sensing mode—detects when beam hits corner cube reflector
- 10-30VDC supply voltage with potentiometer sensitivity adjustment
- Solid-state NPN complementary output (light-operate or dark-operate configurable)
- M12 4-pin Euro-style quick-disconnect connector for fast field replacement
- IP67 / NEMA 4X sealed enclosure—suitable for wash-down and wet environments
Technical Specifications
- Sensing Range: 6.5 m (6500 mm) maximum
- Supply Voltage: 10–30 V DC (12/24 V DC nominal)
- Supply Current: <35 mA (exclusive of load)
- Output Type: Solid-state NPN (complementary)
- Output Rating: 100 mA maximum
- ON-state Saturation Voltage: <1.5 V (2 m cable)
- OFF-state Leakage: <50 µA @ 30 V DC
- Response Time: 0.6 ms
- Sensing Beam: Visible Red LED
- Sensing Mode: Retroreflective, non-polarized
- Operating Temperature: –20 to +70°C
- Housing: Rectangular, ABS thermoplastic with acrylic lens
- Mounting: M18 threaded barrel mount
- Connection: 4-pin M12 integral quick-disconnect (QD)
- IP Rating: IP67
- NEMA Rating: NEMA 4X
- RoHS: Compliant
Typical Applications
- Conveyor belt presence/absence detection
- Package detection and positioning on assembly lines
- Automated material handling and sorting systems
- Machine guarding and interlocking (with reflector targets)
- Warehouse automation and pallet/carton tracking
- Food and beverage bottling/canning line detection
Compatibility & Replacements
Compatible With
- Allen-Bradley PLCs and compact logix controllers via analog or digital input cards
- Siemens SIMATIC S7 series with appropriate I/O modules
- Any control system accepting 100 mA NPN sinking discrete input at 10–30 V DC
- Standard industrial 24 VDC power supplies (nominal operation)
- M12 4-pin connector ecosystem (sensor to PLC/drive interface)
Replaces / Drop-In Replacement For
- QS18VN6LV (same sensor with 2 m cable instead of M12 QD)
- Legacy Banner QS18, QS30, and similar all-purpose photoelectric series
- Most 18 mm barrel-mount retroreflective sensors from competing vendors (verify connector and output specs before swap)
Works With
- Banner corner cube reflectors (standard 25 mm, 40 mm retroreflective targets)
- M12 A-coded connectors and industrial M12 cable assemblies
- PLC discrete input modules, safety relays, and drive enable circuits
- Standard 24 VDC industrial automation control systems
- Light-operate (LO) or dark-operate (DO) mode selection via potentiometer teach
