Relay CPU Module | GE Multilin UR9WH Universal
Manufacturer: GE Fanuc
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Part Number: UR9WH
Condition：New with Original Package
Product Type: PLC CPU Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE Multilin UR9WH UR Series CPU Module
The GE Multilin UR9WH, also cataloged as the UR9WH CPU Module, operates as a dedicated hardware component for central processing and logic execution within Universal Relay (UR) Series platforms. The unit utilizes an industrial-grade microprocessor paired with flash memory and onboard RAM to drive high-speed computation for feeder, generator, transformer, and motor protection algorithms. Operating on dual power options of 24-48 VDC or 110/220 VAC, the standard 38 mm module integrates three 10/100/1000Base-T Ethernet ports alongside one RS-485 serial port to execute continuous real-time data processing and SCADA network communication.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | UR9WH |
| Brand | GE Multilin |
| Origin | USA |
| Weight | 200 g |
| Dimensions | 38 mm thickness (standard UR slot width) |
| Operating Temp | -20 deg C to +70 deg C |
| Power Consumption | 24-48 VDC / 110/220 VAC dual power input capability |
| Processor & Memory | Industrial-grade microprocessor, onboard flash memory, high-speed RAM |
| Communication Interfaces | 3 x Ethernet ports (10/100/1000Base-T), 1 x RS-485 serial port |
| System Compatibility | GE Multilin UR Series protection relay chassis |
| Storage Temp | -40 deg C to +85 deg C |
Backplane Bus Communication Velocity and Firmware Flash Compatibility
The GE Multilin UR9WH manages backplane bus communication velocity across the internal UR chassis architecture. The integrated microprocessor verifies firmware flash compatibility during startup and maintains high-speed data exchange between adjacent protection, metering, and I/O modules. By maintaining deterministic network arbitration across its three gigabit Ethernet channels, the CPU prevents communication packet congestion during high-density event logging and real-time protection trip processing.
Frequently Asked Questions
Q: How does the UR9WH CPU module interface with existing UR series chassis hardware?
A: The module installs directly into the standard 38 mm central processing slot of any GE Multilin UR series chassis, establishing immediate connection with the backplane power and communication buses.
Q: What network interface options are available for SCADA integration?
A: The board provides three 10/100/1000Base-T Ethernet ports for redundant network architectures along with one RS-485 serial port for legacy protocol integration.
Q: How are firmware updates managed on the CPU module?
A: Firmware images load directly into onboard flash memory via network connections or service software without interrupting physical board calibration or user configuration settings.
Field Installation Guidelines
Field technicians must observe the following physical and electrical procedures during module insertion:
- De-energize the UR relay chassis power supply before attempting module installation or removal to prevent electrical arc damage to backplane connectors.
- Slide the 38 mm module evenly along the chassis guide rails until the rear multi-pin connector seats firmly into the backplane socket.
- Tighten the top and bottom captive retaining screws to secure the module chassis and ensure frame ground continuity.
- Connect 10/100/1000Base-T Ethernet cables to the front RJ-45 ports, ensuring minimum bend radius clearance inside the cabinet door.
- Verify that power input wiring matches the selected voltage supply range (24-48 VDC or 110/220 VAC) prior to re-energizing the chassis.