Overview
The Banner QS18VP6LPW-78992 is a World-Beam polarized retroreflective photoelectric sensor designed for reliable object detection in industrial automation. Part of Banner’s proven QS18 series, this all-purpose sensor combines universal M18 threaded housing with flexible detection modes, making it a drop-in upgrade for hundreds of competing sensor designs.
Key Features
- Polarized Retroreflective Mode: Operates with reflector tape or retroreflective surfaces for contamination-resistant detection
- 3.5 m (11.5 ft) Sensing Range: Long-distance detection ideal for conveyor systems, package handling, and material sorting
- Complementary PNP Output: Simultaneous normally-open and normally-closed outputs enable Light-ON and Dark-ON logic switching
- Visible Red Light Indicator (650 nm): LED feedback simplifies setup and troubleshooting on the factory floor
- Potentiometer Adjustment: Fine-tune sensitivity without additional equipment
- IP67 / NEMA 6 Rating: Sealed housing protects against dust, moisture, and washdown environments
Technical Specifications
This photoelectric sensor delivers industrial-grade performance across a range of automation tasks:
- Wide operating temperature range from -20°C to +70°C
- M18 threaded barrel mount for tool-free installation in standard sensor housings
- Thermoplastic housing with acrylic lens for durability in harsh environments
- Pre-wired with 2 m (6.5 ft) cable terminated with bare-end flying leads
- Visible red light output for easy aiming and alignment
Typical Applications
The QS18VP6LPW-78992 excels in a wide range of industrial and manufacturing environments:
- Conveyor line object detection and sorting
- Package presence verification in logistics systems
- Assembly line part counting and position sensing
- Automatic gate and door control
- Robotic pick-and-place guidance
- Liquid level sensing with retroreflective floats
- General-purpose material handling and machine vision triggering
Compatibility & Replacements
Compatible With
- Standard 18 mm threaded sensor housings and mounting brackets
- PLC and automation controller inputs accepting 24V DC PNP logic signals
- Industrial control systems using 10–30 V DC power supplies
- Factory automation networks and machine integration systems
Replaces / Drop-In Replacement For
- QS18VP6LP (standard 2 m cable variant)
- QS18VP6LP W/30 (extended 9 m cable variant)
- Other 18 mm retroreflective photoelectric sensors in comparable pin configurations
Works With
- Allen-Bradley CompactLogix and ControlLogix platforms via discrete 24V inputs
- Siemens S7-1200/S7-1500 with digital input modules
- Mitsubishi FX and Q-series PLC I/O terminals
- Omron CP and NX-series controllers
- Retroreflective tape, reflectors, and corner-cube retroreflectors
