Allen-Bradley 1394-SJT10-C-RL Cable

Description

Allen-Bradley 1394-SJT10-C-RL Cable

Product Dimensions：

The Allen-Bradley 1394-SJT10-C-RL is a high-performance System Module belonging to the legacy 1394 Digital AC Multi-Axis Motion Control System family, manufactured by Rockwell Automation. It functions as the central power and control hub for a multi-axis servo drive system.

Product Detailed Description

The 1394-SJT10-C-RL is a 10 kW System Module designed to manage and distribute DC bus power to associated axis modules (which drive individual servo motors). The “SJT” indicates it is a standard system module with a built-in shunt regulator, and the “-C” designation signifies that it features Sercos interface communication capabilities for high-speed, fiber-optic digital motion control. The “-RL” suffix typically indicates a specific hardware revision or a factory-installed option such as an internal line filter or custom internal firmware.

Technical Parameters

Product Advantages

• Efficient Multi-Axis Design: By sharing a single common DC bus across multiple axis modules, the system minimizes wiring complexity and optimizes energy efficiency (allowing decelerating axes to feed power back to accelerating axes).
• High-Speed Sercos Communication: The fiber-optic Sercos interface ensures immune-to-noise, ultra-fast real-time synchronization between the motion controller (e.g., ControlLogix 1756-M08SE) and the drives.
• Integrated Shunt Regulator: Features a built-in shunt resistor mechanism to safely dissipate regenerative energy generated during rapid motor deceleration, protecting the internal electronics.
• Compact Footprint: Combining the power supply and central control architecture into one module significantly reduces required DIN rail or backplate space in the enclosure.

Important Considerations & Precautions

• Legacy Status: The 1394 series is a discontinued/legacy product line from Rockwell Automation. Availability is primarily limited to remanufactured, surplus, or repaired units. Ensure a robust spare-parts strategy.
• Fiber Optic Handling: The Sercos interface uses fragile fiber-optic cables. Avoid exceeding the minimum bend radius of these cables, and ensure the connector ends are kept free of dust and oil.
• Residual Voltage Hazard: High-voltage capacitors retain a dangerous charge. Wait at least 5 to 10 minutes after disconnecting input power, and verify with a voltmeter that the DC bus voltage has dropped to safe levels (<50 V DC) before servicing the module.
• Cooling: Due to the 10 kW rating and heat dissipation from the shunt resistor, proper panel ventilation and strict adherence to top/bottom clearance dimensions are mandatory.

Product Applications

The 1394-SJT10-C-RL system module was heavily deployed in complex, multi-axis coordinated motion systems:

• Automotive Manufacturing: Used in robotic welding cells, body shop positioning systems, and conveyor transfers.
• Packaging Machinery: Powering high-speed form-fill-seal machines, cartoning lines, and multi-axis indexing tables.
• Material Handling: Controlling automated storage and retrieval systems (ASRS) and coordinated gantry cranes.
• Converting & Printing: Managing synchronized web-tension control rolls and cutting systems.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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