Overview
The Allen-Bradley 1394C-SJT05-L-RL servo system module is part of Rockwell Automation’s proven 1394 digital AC multi-axis motion control platform. This Series C unit delivers 5 kilowatts continuous power with integrated IMC S Class (GMC) motion control, supporting single-axis applications with two auxiliary encoder inputs. Built for industrial servo systems requiring reliable, efficient power conversion and motion synchronization over AxisLink or Remote I/O networks.
Key Features
- 5KW continuous power output (28KW peak) with 99% efficiency
- 360-480V AC 3-phase input (50/60 Hz); 530-680V DC output
- IMC S Class integrated motion control—single axis with two auxiliary encoder inputs
- Smart Power, EMI filtering, and factory-installed terminations
- AxisLink and Remote I/O (RIO) communication ports for network synchronization
- 20ms line-loss ride-through for enhanced system uptime
- IGBT power conversion with slide-and-lock modular connectivity
Technical Specifications
- Power Rating: 5 kW continuous; 28 kW peak
- Input Voltage: 360–480 V AC, 3-phase, 50/60 Hz
- Input Current: 6.5 A
- Output Voltage: 530–680 V DC
- Continuous Output Current: 7.36 A
- Peak Output Current: 15.0 A
- Efficiency: 99%
- Supported Axes: 1 axis + 2 auxiliary encoder inputs
- Control Class: IMC S Class (GMC)
- Communication: AxisLink, Remote I/O
- Ambient Temperature: 0–50°C (32–122°F)
- Ambient Humidity: 5–95% non-condensing
- Shock Rating: 15G maximum
- Vibration: Up to 1G
- Weight: Approximately 11 kg (24.25 lb)
- Encoder Interface: Incremental AB quadrature with optically isolated differential channels
Typical Applications
- Single-axis positioning and motion control systems
- Synchronized servo networks (AxisLink up to 8 nodes over 25m segments)
- Industrial pack-and-place, printing, and materials handling
- Pump and compressor speed control
- Machine tool servo axis control
- OEM multi-axis systems requiring network-based motion coordination
Compatibility & Replacements
The 1394C-SJT05-L-RL belongs to the Allen-Bradley 1394 servo controller family and is compatible with SLC (Small Logic Controller) platforms via SLC or backplane interfaces. It supports standard Incremental AB quadrature encoders with AM26LS32 or equivalent receiver ICs. Direct replacements in the same product line include 1394C-SJT05-L (without RIO/AxisLink) for simpler applications, or 1394C-SJT05-T-RL (GMC Turbo variant) for systems requiring more GML memory and faster program execution. These modules are often used as drop-in upgrades from earlier Bulletin 1394 non-Series C models and are compatible with legacy 1394 axis modules.
