ABB 5SHY3545L0016 excitation SCR module
The Schweitzer Engineering Laboratory has added modules and protocols to its SEL-2240 Axion Remote Terminal Device (RTU) or Programmable Logic Control (PLC) platform. Customers can now order low-voltage power supplies, four-slot backplanes, dual four-slot backplanes, and IEC 61850 GOOSE. The low voltage power supply supports 24/48 Vdc power supply. A pre-existing high voltage power supply supports either 125/250 Vdc or 120/240 Vac in the same unit. They can be used alone or in one of the same Axion units to provide redundant power from separate power sources such as substation AC power and backup batteries.
Four-slot and dual-four-slot backplanes are useful for creating small distributed control systems. Another application of the four-slot backplane is to implement redundant control systems with two real-time automation controller (RTAC) modules. The original 10-slot backplane is suitable for large control applications where inputs and outputs are more centralized. Both the Axion RTAC module and the SEL-3530 RTAC now support IEC 61850 GOOSE and can receive up to 120 messages and send 48 messages, providing greater flexibility in integrating various smart electronic devices (IEDs). SEL continues to develop new features for Axion. A variety of input/output (I/O) modules will be released later this year, including DC analog input, AC metering, fast high-current digital output, and DC analog output modules to expand Axion’s monitoring and control capabilities. SEL will also add flexibility in protocol selection, supporting IEC 61850 MMS and IEC 60870-5 in the RTAC product line.
Axion extends SEL’s automation and control portfolio by offering high-density, highly configurable modular RTU and Programmable logic controller (PLC) systems. With a flexible system architecture and integrated security, Axion is designed to meet the needs of today’s monitoring applications. Users can create customized solutions for every job simply by choosing the right combination of modules in almost any arrangement. The ACSELERATOR RTAC SEL-5033 configuration software is included with each Axion at no additional cost. It provides everything you need to set up I/O, communication, security, and programmable logic in one easy-to-use package.
