Overview
The Allen-Bradley 42EF-P2LDB-F5 is a polarized retroreflective photoelectric sensor from Rockwell Automation’s RightSight product line. This 42EF-P2LDB-F5 photoswitch delivers reliable detection of retroreflective targets using visible red LED technology, making it suitable for machine automation, packaging equipment, and material handling systems where background-independent sensing is required.
Key Features
- Polarized retroreflective sensing mode eliminates false triggers from non-retroreflective surfaces
- Visible red LED for easy alignment and troubleshooting in the field
- DC power input for use in 24 VDC and 10–30 VDC control circuits
- Special connector configuration (LDB variant) for flexible mounting and integration options
- Rugged industrial enclosure suitable for manufacturing environments
- Green status indicator for setup and diagnostics
Technical Specifications
Based on the 42EF-P2LDB series architecture from Rockwell Automation specifications:
- Sensor Type: Polarized retroreflective photoelectric sensor
- Light Source: Visible red LED
- Power Supply: 10–30 VDC
- Output Type: 2 complementary source outputs (LO/HI, typically PNP)
- Connector Type: LDB special connector with hardwired leads
- Sensing Distance: Up to 3 meters for standard retroreflective targets
- Response Time: Approximately 1 millisecond
- Operating Temperature: 0 to 50 °C standard industrial range
- Series: Allen-Bradley RightSight 42EF
Typical Applications
- Conveyor and packaging line product detection
- Box counting and sorting systems
- Web-break detection on printing and converting equipment
- Object presence verification where background rejection is essential
- Position sensing in automated assembly machinery
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix PLC systems
- Siemens S7-1200 and S7-1500 with appropriate I/O modules
- Mitsubishi FX and Q-series PLCs via standard 24 VDC I/O
- Omron CP and CJ-series controllers
- Generic 10–30 VDC control systems with discrete input capability
Replaces / Drop-In Replacement For
- 42EF-P2LDB-F4 (earlier revision)
- 42EF-P2LDB-F52 (special variant, discontinued by manufacturer)
- Similar RightSight retroreflective models with comparable electrical characteristics
Works With
- Studio 5000 / RSLogix 5000 configuration software
- CompactLogix and ControlLogix discrete input modules (16-point or 32-point)
- Standard 24 VDC sensor networks and I/O racks
- Typical industrial control power supplies rated 10–30 VDC
- Retroreflective targets and prisms (standard 3M or equivalent retroreflective material)
