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UR 9EH CPU Processor Module GE Multilin

UR 9EH CPU Processor Module GE Multilin

Product Description

The GE Multilin UR 9EH is a core processing module designed for the GE Multilin Universal Relay Series. Serving as the primary computational engine of the relay, the UR 9EH handles...

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SKU: UR9EH
Vendor: GE Fanuc
Category: CPU Processor Module

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Product Description

The GE Multilin UR 9EH is a core processing module designed for the GE Multilin Universal Relay Series. Serving as the primary computational engine of the relay, the UR 9EH handles critical operations such as complex logic algorithms, latching sequences, and precise timing functions essential for power system protection.

The module is suitable for both upgrading legacy systems and replacing existing CPUs, ensuring reliable performance and integration within the UR platform.

Technical Specifications

Parameter Specification
Manufacturer GE Multilin
Model Identifier UR 9EH
Function Central Processing Unit (CPU)
Manufacturing Origin Markham, Ontario, Canada
Weight 0.74 kg
Dimensions 6.5 in × 6 in × 2.5 in

Integration and Compatibility

The UR 9EH features Plug & Play functionality, allowing the system to auto-detect and initialize settings upon startup. To ensure operational stability and prevent errors such as HARDWARE MISMATCH or DSP ERROR, the CPU module generation must match the CT/VT module generation.

New UR 9EH modules should be paired with modern CT/VT counterparts, while legacy CPU modules should remain paired with older analog input modules to maintain communication integrity across the UR relay system.

Configuration and Optimization

The module is fully configurable through the relay’s front-panel keypad or via EnerVista UR Setup. Advanced users can optimize CPU performance by selectively disabling features, such as server scanning, which frees resources if IEC 61850 client/server communication is not required in the network.

Frequently Asked Questions

Can I replace an older UR CPU with a new UR 9EH without updating other modules?
Compatibility is version-dependent. Installing a new UR 9EH alongside older CT/VT modules may lead to communication errors. Always verify the compatibility of your existing backplane and I/O modules before performing upgrades.

How do I free up resources on this CPU?
Through EnerVista UR, non-essential features like server scanning can be disabled to optimize CPU performance, especially if IEC 61850 communication is not being utilized in your specific system.