Product Description

The Allen-Bradley 1394-SJT10-T-RL is a high-performance digital AC multi-axis servo control system module, part of the Allen-Bradley 1394 GMC Turbo series. This module serves as a robust system controller for demanding motion control applications. The “T” in its designation indicates it’s a “Turbo” version, providing enhanced performance compared to standard GMC modules, specifically featuring more GML (Graphical Motion Control Language) application memory (64K) and a faster program execution speed due to its 32-bit CPU. The “RL” suffix typically signifies the inclusion of Remote I/O (RIO) and AxisLink interfaces, offering versatile connectivity and communication within various system architectures.

The Allen-Bradley 1394-SJT10-T-RL is designed to accept 360-480V AC, three-phase input power, and internally converts it to a 530-680V DC link voltage. It provides a continuous power output of 8/10 kW (at nominal 360/480V AC input, respectively), making it suitable for controlling multiple powerful servo motors. This module is renowned for its high efficiency (up to 99%) and includes an active soft-start inrush current limit for DC link charging, which prolongs component life. It is crucial for applications requiring highly precise, synchronized, and rapid motion control, benefiting from its increased processing power and expanded memory for complex motion profiles.

Product Parameters

The Allen-Bradley 1394-SJT10-T-RL possesses the following key technical specifications:

Advantages and Features

The Allen-Bradley 1394-SJT10-T-RL offers numerous advantages and features, particularly suited for high-demand applications:

• Enhanced Performance (Turbo): The “T” (Turbo) designation means increased GML application memory (64K vs. 32K in standard GMC) and a faster 32-bit processor (vs. 16-bit), allowing for more complex motion profiles and quicker program execution.
• Integrated Remote I/O (RIO) and AxisLink: The “RL” suffix provides direct, high-speed links to Allen-Bradley SLC controllers (via RIO) and dedicated AxisLink for communication between axis modules, simplifying data transfer and integration within larger control systems.
• High Power Output: With 8/10 kW continuous power, the Allen-Bradley 1394-SJT10-T-RL can effectively control multiple high-power servo motors, making it ideal for demanding multi-axis machinery.
• Exceptional Efficiency: Up to 99% efficiency minimizes energy consumption and reduces operational costs.
• Robust Diagnostic Capabilities: Features configurable analog test outputs and detailed diagnostic information accessible via the serial port and Human Interface Module (HIM), aiding in rapid troubleshooting and system optimization.
• Direct Line Connection: Designed for direct connection to 360-480V AC three-phase power, simplifying wiring and often eliminating the need for external isolation transformers.
• Soft Start Inrush Current Limiting: Active soft start for DC link charging protects internal components from high inrush currents, contributing to extended module life.
• API 670 Considerations: While the 1394 series is a motion controller, its robust design aligns with the high reliability expectations of industrial standards, making it suitable for critical applications where precise control is paramount.

Application Areas and Application Cases

The Allen-Bradley 1394-SJT10-T-RL is highly effective in complex, high-speed, and high-precision motion control applications across various industries:

• Advanced Packaging Machinery: High-speed form-fill-seal machines, cartoners, case packers, and robotic palletizers requiring rapid and coordinated movements of multiple axes for increased throughput and reduced waste.
• Printing and Converting Lines: Precision web tension control, registration control, cutting, and folding in printing presses, laminators, and slitting machines where exact synchronization is critical.
• Automated Assembly and Robotics: Multi-axis robotic cells, pick-and-place systems, and complex assembly machines in automotive, electronics, and medical device manufacturing. The Turbo performance allows for faster cycle times.
• Material Handling and Logistics: Automated guided vehicles (AGVs), large gantry systems, and automated storage and retrieval systems (AS/RS) that demand high accuracy, speed, and coordinated movement of heavy loads.
• Textile and Paper Industry: Machines requiring precise tension control, winding, unwinding, and cutting operations, benefiting from the module’s power and control capabilities.

Application Case: In a high-volume flexible packaging plant, a Allen-Bradley 1394-SJT10-T-RL system module was implemented to upgrade an existing multi-axis bag-making machine. The machine previously struggled with maintaining consistent bag length and seal quality at higher speeds due to limitations of its older servo system. The Allen-Bradley 1394-SJT10-T-RL‘s Turbo performance, with its faster program execution and larger GML memory, allowed for the implementation of more sophisticated motion profiles for the film feed, cross-seal, and cut-off axes. The integrated RIO communication enabled seamless data exchange with the plant’s existing SLC PLC, streamlining machine control and diagnostics. This upgrade resulted in a 25% increase in production speed, a significant reduction in material waste due to improved cut accuracy, and enhanced overall product quality, demonstrating the value of its advanced control capabilities for demanding manufacturing processes.

Competitive Comparison

The Allen-Bradley 1394-SJT10-T-RL competes in the high-end multi-axis servo control market. While major players like Siemens (with its SINAMICS S series), Bosch Rexroth (IndraDrive), and Schneider Electric (Lexium) offer powerful servo drive systems, the Allen-Bradley 1394-SJT10-T-RL distinguishes itself through its specific optimizations within the Rockwell Automation ecosystem. Its “Turbo” enhancements (faster CPU, more GML memory) provide a performance edge for complex, calculation-intensive motion tasks compared to standard GMC modules. The inclusion of native Remote I/O and AxisLink interfaces offers a direct, high-speed integration path with Allen-Bradley SLC PLCs and between axis modules, which can be a significant advantage for users already invested in the Rockwell platform. While competitors offer their own communication protocols (e.g., PROFINET, EtherCAT, SERCOS III), the Allen-Bradley 1394-SJT10-T-RL‘s strengths lie in its deep integration, simplified programming within Rockwell’s environment, and the established reliability and support for which Allen-Bradley is known, particularly for multi-axis coordinated motion on complex machinery.

Selection Advice

When selecting the Allen-Bradley 1394-SJT10-T-RL, consider the following:

• Performance Needs: The “Turbo” version is ideal if your application requires very high-speed calculations, complex motion profiles, or expanded program memory for GML (Graphical Motion Language) applications.
• Power Requirements: The 8/10 kW continuous power output makes it suitable for heavier loads and more demanding multi-axis applications than lower-kW versions. Ensure this matches your motor and mechanical load requirements.
• Integration with Rockwell PLCs: If you are using Allen-Bradley SLC PLCs and require high-speed data exchange via Remote I/O, the “RL” variant is highly beneficial due to its integrated interfaces.
• Number of Axes: This system module works in conjunction with 1394 axis modules (e.g., AM03, AM04, AM07). Verify that the system module can support the required number and combination of axis modules for your application.
• Cooling Considerations: While designed for efficiency, consider the ambient temperature and duty cycle. For continuous heavy loads or high ambient temperatures, an optional 1394 fan kit may be necessary to ensure optimal performance and longevity.
• Legacy System Integration: As part of the 1394 series, this module is well-suited for expanding or upgrading existing Allen-Bradley systems, leveraging familiar programming environments and communication protocols.