Overview
The Allen-Bradley 42GRL-9000-QD is a photoelectric transmitted beam sensor from the Series 9000 PHOTOSWITCH family. This infrared LED-based optical sensor delivers reliable long-range detection for industrial automation, manufacturing, and safety applications. The unit combines a compact design with robust sensing capability, supporting 10–264V AC/DC operation and featuring a 4-pin DC Micro (M12) QD connector for quick integration into control systems.
Key Features
- Transmitted Beam Detection: Infrared LED operating at 880 NM wavelength for stable, long-range object detection
- Extended Range: 61-meter (200-foot) sensing distance suitable for large machinery spacing and outdoor applications
- Wide Voltage Support: Operates on 10–264V AC/DC power supply, reducing need for separate 24V conversion modules
- Fast Response: Response time of less than 1 millisecond for critical timing applications
- Rugged Construction: Durable housing designed to withstand harsh environmental conditions including dust and moisture
- Standard Connector: 4-pin DC Micro (M12) QD connector enables tool-free connection and disconnection
Technical Specifications
The following specifications are verified from manufacturer and authorized distributor documentation:
- Input Voltage: 10–264V AC/DC
- Sensing Mode: Transmitted beam (light source)
- Sensing Distance: 61 meters (200 feet)
- Light Source: Infrared LED 880 NM
- Connector Type: 4-pin DC Micro (M12) QD
- Series: Series 9000 PHOTOSWITCH
- Diagnostic Function: On-Off standard output with margin indicator
Typical Applications
- Manufacturing automation in assembly lines, material handling, and quality control processes
- Safety monitoring systems to detect presence or absence of objects
- Presence verification on conveyor lines and production equipment
- Object counting and positioning in high-speed sorting applications
- Outdoor or large-facility applications requiring extended detection range
- Heavy machinery and equipment gap monitoring
Compatibility & Replacements
Compatible With
- Allen-Bradley PLCs (CompactLogix, ControlLogix, MicroLogix series)
- Siemens SIMATIC S7 controllers
- Omron CJ and CP series controllers
- Mitsubishi FX and Q-series PLCs
- Standard 24V DC and AC/DC industrial control systems
- EtherNet/IP and PROFINET industrial networks via appropriate gateway modules
Replaces / Drop-In Replacement For
- 42GRL-9000-QD (base model without QD connector variant)
- Earlier Allen-Bradley photoswitch models with 200-foot range requirements
- Third-party transmitted beam sensors using M12 QD connectors in the 10–264V operating range
Works With
- Allen-Bradley Studio 5000 Logix Designer (configuration and diagnostics)
- Siemens TIA Portal (via appropriate I/O modules)
- Omron Sysmac Studio programming environment
- Standard 24V relay and solid-state output control modules
- M12 QD connector-equipped I/O terminals and fieldbus modules
- Industrial Ethernet gateways supporting photoswitch diagnostics
