Product Description
The Allen-Bradley 1394C-SJT05-T-RL is a high-performance digital AC multi-axis servo control system module, belonging to the Allen-Bradley 1394C (Compact) series and featuring the “Turbo” designation for enhanced capabilities. This module acts as the central intelligence for complex motion control applications, commanding multiple servo motors simultaneously. The “C” in its part number signifies its compact design, offering a smaller footprint than the standard 1394 series, which is beneficial for space-constrained industrial panels. The “T” (Turbo) indicates superior performance, including more GML (Graphical Motion Control Language) application memory (64K) and a faster 32-bit CPU for rapid program execution. The “RL” suffix denotes the inclusion of Remote I/O (RIO) and AxisLink interfaces, providing versatile communication options for integration into various control system architectures.
The Allen-Bradley 1394C-SJT05-T-RL accepts 360-480V AC, three-phase input power, and efficiently converts it to a 530-680V DC link voltage. It delivers a continuous power output of 5 kW (at 460V AC input), making it suitable for controlling multiple powerful servo motors. Known for its high efficiency (up to 99%) and active soft-start inrush current limit, this module ensures reliability and extends component life. The Allen-Bradley 1394C-SJT05-T-RL is ideal for applications demanding precise, synchronized, and rapid motion control, benefiting from its increased processing power and expanded memory for intricate motion profiles.
Product Parameters
The Allen-Bradley 1394C-SJT05-T-RL possesses the following key technical specifications:
| Parameter | Specification |
|---|---|
| Module Type | GMC Turbo System Module (Compact) / Servo Controller |
| Input Voltage | 360-480V AC, 3-Phase, 50/60 Hz |
| Continuous Power Output | 5 kW (at 460V AC) |
| DC Link Voltage | 530-680V DC (internal conversion) |
| Efficiency | Up to 99% |
| Processor | 32-bit CPU |
| Program Memory (GML) | 64K (Turbo) |
| Communication Interfaces | SCANport, serial (for HIM), AxisLink, Remote I/O (RIO) |
| Line Loss Ride Through | 20 ms (typical) |
| Internal Shunt Resistor | Built-in (capacity similar to 1394-SJT05-A, may require external shunt for higher regenerative loads) |
| Mounting | Rack-mounted within the 1394C system |
| Form Factor | Compact design compared to standard 1394 modules |
| Certifications | Tested to meet EMC Directive 89/336/EC (EN 50081-2) and Low Voltage Directive 73/23/EEC (EN 61131-2) |
Advantages and Features
The Allen-Bradley 1394C-SJT05-T-RL offers numerous advantages and features, especially for high-performance and space-conscious applications:
- Compact Form Factor: The “C” (Compact) designation provides a smaller physical size, making the Allen-Bradley 1394C-SJT05-T-RL ideal for installations where cabinet space is limited, without sacrificing performance.
- Enhanced Performance (Turbo): Inheriting the “T” (Turbo) features, it boasts increased GML application memory (64K) and a faster 32-bit processor compared to non-Turbo versions. This allows for more complex motion profiles, faster execution, and greater flexibility in demanding applications.
- Integrated Remote I/O (RIO) and AxisLink: The “RL” suffix offers seamless, high-speed communication with Allen-Bradley SLC controllers via RIO and dedicated AxisLink for inter-axis communication, simplifying integration into larger control systems.
- High Efficiency: With up to 99% efficiency, the Allen-Bradley 1394C-SJT05-T-RL minimizes energy consumption, contributing to lower operating costs and reduced heat generation.
- Robust Diagnostic Capabilities: Provides configurable analog test outputs and detailed diagnostic information accessible via serial port and Human Interface Module (HIM), facilitating rapid troubleshooting and system optimization.
- Active Soft Start: Features an active soft start for DC link charging, limiting inrush currents to protect internal components and extend the module’s lifespan.
- 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.
Application Areas and Application Cases
The Allen-Bradley 1394C-SJT05-T-RL is well-suited for high-speed, high-precision, and space-optimized motion control applications across various industries:
- Compact Packaging Machinery: Ideal for smaller, high-speed packaging lines like vertical form-fill-seal machines, small cartoners, and labeling machines where cabinet space is at a premium but precise synchronization is critical.
- Automated Small-Scale Assembly: Used in intricate automated assembly cells for electronics, medical devices, or small consumer goods, requiring precise and rapid positioning of robotic arms and actuators within confined spaces.
- Specialty Machine Building: For custom-built machines where standard servo systems might be too large, the compact design of the Allen-Bradley 1394C-SJT05-T-RL provides a powerful solution without compromising on performance.
- Robotics Integration: Employed in compact robotic systems or multi-robot work cells where control density is important.
- Textile and Printing Equipment: Where precision motion control is needed within a compact machine footprint, such as in specialized textile machinery or compact digital printing presses.
Application Case: A manufacturer of medical diagnostic devices needed to develop a new, more compact automated assembly machine that could perform several highly precise picking, placing, and dispensing operations. Due to severe space constraints within the machine enclosure, a standard servo control system was too large. They selected the Allen-Bradley 1394C-SJT05-T-RL system module for its compact design and powerful “Turbo” capabilities. The Allen-Bradley 1394C-SJT05-T-RL, paired with compact 1394C axis modules, precisely controlled seven synchronized servo motors for the robotic handling arms and dispensing mechanisms. Its 64K GML memory allowed for complex, optimized motion profiles that minimized cycle time while maintaining micron-level accuracy. The integrated RIO interface simplified connectivity to the plant’s existing Allen-Bradley PLC infrastructure. This solution enabled the manufacturer to significantly reduce the footprint of their new machine, achieve higher throughput, and maintain the stringent precision required for medical device assembly.
