UR-9EH

About the UR-9EH

General Electric Multilin’s UR-9EH is a CPU module intended for replacing a defunct module or upgrading an old module for a unit in the Universal Relays series. The module provides computing power to the relay in the form of logic algorithms, logic gates, latches, and timers. CPU modules do not require a surge ground connection.

Users should note that new CPU modules must be used alongside new CT/VT modules; similarly, old CPU modules must be used alongside old CT/VT modules. Failure to do so will result in HARDWARE MISMATCH or DSP ERROR error displays, so users should ensure they are buying an appropriate module for the age of their module’s counterpart. 

GE Multilin’s UR-9EH has a number of configurable settings that impact CPU function and can be modified using the keypad and faceplate or EnerVista UR. For example, the SERVER SCANNING feature can be disabled to increase CPU resources, which is especially useful for users not requiring IEC 61850 client/server functionality. The CPU module’s Plug & Play capabilities also automatically establishes basic CPU settings, removing the burden of total programming from the user and allowing the user to focus on optimizing settings rather than starting from scratch.