Product Description
The Allen-Bradley 1394-SJT22T is a servo control and analog interface module designed for 22 kW systems, featuring "smart power" for active Soft Start inrush current limiting during DC link charging and a power monitor for status checks. It includes a CNC interface compatible with 9/260 and 9/290 CNCs, offering a cost-effective digital servo system with integrated power electronics. Communication options include encoder feedback, RS-232/422 serial, DH-485, AxisLink, Remote I/O, Flex I/O, and SLC Interface (direct connection); consult the manual for connection locations. Serial communication utilizes identical 9-pin DB-9 connectors. The recommended contactor is the Allen-Bradley 100-C37x10 (AC coil) or 100-C37Zx10 (DC coil), and a surge suppressor is required. Proper grounding and EMI/RFI mitigation are crucial during installation, especially when connecting the shunt module for 22 kW systems; external shunt module installations require metal conduit for shunt power cables and fan wiring to minimize EMI/RFI.
Is Your Device Showing These Signs?
The Allen Bradley 1394-SJT22-T commonly experiences issues related to resolver feedback malfunction, resulting in erratic motor control. Drive faults, specifically related to overcurrent or overvoltage conditions, are frequent and necessitate investigation of power supply integrity and motor insulation. Communication failures on the SERCOS interface disrupt real-time data exchange, often stemming from cabling problems or configuration errors. Replacement of degraded electrolytic capacitors within the power supply section is a standard procedure to address performance degradation and prevent catastrophic failures. Firmware corruption can occur, requiring a re-flash to restore proper functionality.
Technical specifications
The Allen-Bradley 1394-SJT22T is a system module for servo controls and analog interfacing in 22kW systems. It features "smart power" for inrush current limiting during DC link charging and includes a power monitor. It has a CNC interface for use with 9/260 and 9/290 CNCs, offering power electronics and a cost-saving digital interface. The module supports various communication options like encoder feedback, RS-232/422, DH-485, AxisLink, Remote I/O, Flex I/O, and SLC Interface. It uses DB-9 connectors for serial communication. Recommended contactors are Allen-Bradley 100-C37x10 (AC) and 100-C37Zx10 (DC), and a surge suppressor is required. Proper grounding and attention to EMI/RFI are crucial during installation, especially when mounting the shunt module outside the cabinet, requiring metal conduit for shunt power cables and fan wiring.
Our Repair Process for the
1394-SJT22-T
Our repair process for the Allen Bradley 1394-SJT22-T begins with a comprehensive evaluation to pinpoint the root cause of the malfunction, focusing on resolver feedback, drive faults, and SERCOS communication. We meticulously examine the power supply, motor insulation, and communication cabling to identify any anomalies. Electrolytic capacitors within the power supply are replaced as a standard preventative measure. If firmware corruption is detected, a re-flash is performed to restore the system to its original operating state. Rigorous testing is then conducted to guarantee complete functionality and adherence to performance specifications before the unit is returned.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
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Ships from Rochester, NY