BANNER QS18VN6LP – Diffuse-Mode Photoelectric Sensor | QS18 MiniSight Series
Engineering Background
The QS18 MiniSight Series from BANNER Engineering is a globally recognized platform for compact, high-reliability photoelectric sensing in demanding industrial environments. Designed to IEC 60947-5-2 standards, the QS18 family delivers consistent performance across temperature extremes, vibration, and contaminated atmospheres — making it the preferred choice for machine builders and systems integrators worldwide.
Product Positioning
The QS18VN6LP is a diffuse-mode (proximity) photoelectric sensor with a visible red LED emitter, NPN open-collector output, and a 6-pin Euro-style (M12) quick-disconnect connector. It is engineered for applications requiring precise, non-contact object detection without a reflector or separate receiver — ideal for part presence/absence verification, conveyor indexing, and packaging line control.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | QS18VN6LP |
| Manufacturer | BANNER Engineering Corp. |
| Series | QS18 MiniSight |
| Sensing Mode | Diffuse (Proximity) |
| Light Source | Visible Red LED, 660 nm |
| Sensing Range | Up to 300 mm (adjustable via potentiometer) |
| Supply Voltage (Vcc) | 10–30 V DC |
| Output Type | NPN Open-Collector |
| Output Current (max) | 100 mA |
| Output Configuration | Light-ON / Dark-ON (selectable) |
| Response Time | ≤ 1 ms |
| Connector | 6-Pin Euro-Style (M12) Quick-Disconnect |
| Housing Material | ABS Thermoplastic |
| IP Rating | IP67 |
| Operating Temperature | -40°C to +70°C |
| Vibration Resistance | MIL-STD-202G, Method 201A |
| Shock Resistance | MIL-STD-202G, Method 213B, Condition I |
| Certifications | UL Listed, CE Marked, RoHS Compliant |
| Dimensions (H × W × D) | 18 mm × 18 mm × 35 mm (approx.) |
| Weight | Approx. 30 g (sensor only) |
Proven Application Environments
- Conveyor & Material Handling: Part presence/absence detection on high-speed conveyor lines
- Packaging Machinery: Label detection, fill-level verification, carton indexing
- Assembly Automation: Component positioning and pick-and-place confirmation
- Printing & Converting: Web break detection, register mark sensing
- Food & Beverage: Container counting and cap presence verification (IP67 wash-down compatible)
- Semiconductor & Electronics: PCB and wafer detection in cleanroom-adjacent environments
Engineering Advantages
- Compact MiniSight Form Factor: 18 × 18 mm housing fits tight machine frames without bracket modification
- Visible Red LED: Simplifies alignment and commissioning — no special tools required
- Wide Supply Voltage Range (10–30 V DC): Compatible with 12 V and 24 V DC control architectures
- IP67 Sealing: Withstands wash-down, coolant mist, and dust ingress in harsh production environments
- Selectable Light-ON / Dark-ON: Single SKU covers both normally-open and normally-closed logic requirements
- M12 Quick-Disconnect: Enables rapid field replacement without rewiring — minimizes downtime
- Extended Temperature Range (-40°C to +70°C): Suitable for cold-storage and high-ambient-temperature installations
System Architecture & Signal Flow
The QS18VN6LP integrates directly into standard PLC discrete input modules (NPN sink-type inputs). Typical wiring topology:
- Pin 1 (Brown): +V DC Supply (10–30 V DC)
- Pin 3 (Blue): 0 V / GND
- Pin 4 (Black): NPN Output Signal → PLC Digital Input
- Pin 2 / Pin 5: Light-ON / Dark-ON mode select (refer to datasheet for configuration)
The sensor’s NPN open-collector output pulls the signal line LOW when an object is detected (Light-ON mode). The PLC input module must supply the pull-up voltage internally or via an external resistor (typically 4.7 kΩ to 10 kΩ to +V DC).
Sourcing & Quality Verification
- OEM Authenticity: All BANNER units sourced through authorized distribution channels with full traceability
- Inspection Protocol: Each unit undergoes incoming inspection including label verification, date code review, and functional output test
- Documentation Available: Original BANNER datasheet, CE Declaration of Conformity, and RoHS certificate available upon request
- Packaging Integrity: Ships in original BANNER anti-static packaging with tamper-evident sealing
- Warranty: 12-month replacement warranty against manufacturing defects
Procurement Process
- Confirm Part Number: Verify QS18VN6LP matches your BOM and wiring diagram output type (NPN)
- Request Quote: Contact support@konmask.com with quantity and required delivery date
- Order Placement: Purchase Order accepted via email; proforma invoice issued within 1 business day
- Lead Time: In-stock units ship within 2–3 business days; ETA confirmed at order
- Shipping: DHL Express / FedEx International Priority available; domestic CN logistics via SF Express
- Documentation: Commercial invoice, packing list, and datasheet included with every shipment
Technical FAQ
Q: Can the QS18VN6LP detect transparent objects?
A: Diffuse-mode sensors have limited performance on transparent targets. For glass or clear plastic detection, consider BANNER’s polarized retroreflective or through-beam models. Contact us for application-specific recommendations.
Q: Is PNP output available in the QS18 series?
A: Yes. The PNP equivalent is the QS18VP6LP. Konmask stocks both variants — specify output type when ordering.
Q: What is the minimum detectable object size?
A: Approximately 10 mm diameter opaque target at 150 mm sensing distance under standard conditions. Performance varies with target color and surface reflectivity.
Q: Can I use this sensor with a 5 V DC PLC input?
A: No. Minimum supply voltage is 10 V DC. For 5 V logic systems, an interface relay or signal converter is required.
Q: Is the sensing range factory-set or field-adjustable?
A: Field-adjustable via an integrated potentiometer, allowing range optimization from close-range to the 300 mm maximum.
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