842D-60131331BXA Allen-Bradley DeviceNet Encoder

Description

842D-60131331BXA Allen-Bradley DeviceNet Encoder

Product Dimensions：

Product Description

The Allen-Bradley 842D-60131331BXA is an absolute multi-turn magnetic encoder from Rockwell Automation, designed to provide highly accurate position and speed feedback in industrial applications. This encoder is specifically built for direct integration into DeviceNet networks, offering a robust and reliable solution for machine control.

Product Specifications

• Manufacturer: Allen-Bradley / Rockwell Automation
• Product Type: DeviceNet Absolute Multi-Turn Magnetic Encoder
• Communication: DeviceNet, with two 5-pin micro quick-disconnect (QD) ports for daisy-chaining.
• Resolution: 26 bits total (13 bits for single-turn position, 13 bits for multi-turn revolutions). This provides a resolution of up to 8192 steps per revolution and up to 8192 revolutions.
• Operating Voltage: 11-25V DC
• Maximum Speed: 6000 RPM (continuous), 12,000 RPM (maximum slewing speed)
• Enclosure Rating: NEMA Type 4, 13, IP66, making it suitable for dusty and wet environments.
• Operating Temperature: -4 to 185°F (-20 to 85°C)
• Housing: Aluminum
• Code Format: Natural Binary
• Configuration: Can be configured using on-board DIP switches for MAC-ID and Baud Rate, or through software like RSNetWorx for DeviceNet.

Product Advantages

• Robust and Reliable: The magnetic sensing technology and rugged aluminum housing make this encoder highly resistant to shock (rated for 100g), vibration (20g), and temperature extremes, ensuring long-term reliability in harsh industrial environments.
• Seamless Network Integration: Designed for direct connection to DeviceNet networks, it simplifies wiring and reduces installation costs. It supports both explicit and I/O messaging for flexible communication with a PLC or other controllers.
• Absolute Position Feedback: The multi-turn feature means the encoder retains its absolute position data even after a power loss. This eliminates the need for re-homing or re-referencing, which saves time and improves system uptime.
• High Precision: With a 26-bit total resolution, it delivers extremely precise and accurate position feedback, which is essential for applications requiring tight control.
• Flexible Setup: The dual micro QD ports allow for easy daisy-chain connections, and programmable features like counting direction (clockwise/counter-clockwise), scaling, and cam limits provide versatility for different applications.

Important Considerations (Precautions)

• Flexible Coupling is a Must: Never rigidly couple the encoder shaft to the machine shaft. Always use a flexible coupling to prevent mechanical stress, which can lead to premature failure of the encoder bearings.
• Correct DIP Switch Settings: Before connecting the encoder to a live DeviceNet network, ensure the DIP switches for the node’s MAC-ID and Baud Rate are correctly set. An incorrect setting can disrupt the entire network’s communication.
• Proper Bus Termination: For DeviceNet networks, correct termination is critical. If using internal termination resistors, only enable them on the encoders at the end of the daisy-chain.
• Preset Button: The encoder has a preset button for setting the home position. Use this with caution, as it can cause unexpected motion if not used properly and can be a safety hazard.
• Product Status: This model has been discontinued by the manufacturer. While it’s still available from surplus suppliers, keep in mind that official manufacturer support may be limited.

Product Applications

The Allen-Bradley 842D-60131331BXA is used in a wide range of industrial automation applications that require reliable position and speed feedback.

• Material Handling: Conveyor systems, automated guided vehicles (AGVs), and robotic pick-and-place systems.
• Packaging Machinery: Labeling, filling, and sealing machines that require precise motion control.
• Assembly Automation: Robots and other automated equipment on assembly lines.
• Web and Printing: Controlling tension and registration in printing presses and web-handling machinery.
• General Motion Control: Any machine requiring robust and accurate absolute position feedback over a DeviceNet network.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

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