Description
Product Introduction
A critical distinction must be noted for procurement and field engineering: 2302-32-VLE-2 is a General Electric (GE) Speedtronic Mark V part number, not a standard Yokogawa product code. Yokogawa DCS systems (such as CENTUM VP or CS 3000) utilize different nomenclature (typically starting with letters like CP, AAI, or ADV). This specific part is a VMEbus processor module built for GE heavy-duty gas and steam turbine control panels.
If you are maintaining a legacy power plant or industrial facility where GE and Yokogawa equipment coexist (for example, a GE Speedtronic turbine control system interfaced to a Yokogawa CENTUM DCS over Modbus or Ethernet), this card belongs strictly inside the GE Mark V turbine panel. It handles high-speed closed-loop governing, fuel metering, and exhaust temperature monitoring within the Mark V VME rack.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Original Manufacturer | General Electric (GE) |
| System Compatibility | GE Speedtronic Mark V Turbine Control Panel |
| Bus Standard | Eurocard VMEbus Standard |
| Processor Type | High-Speed Digital Signal Processor / Microcontroller |
| System Architecture | Compatible with Simplex or Triple Modular Redundant (TMR) Cores |
| Power Supply Requirements | +5V DC from VME backplane rail |
| Operating Temperature | 0°C to +60°C (32°F to +140°F) |
| Mounting Style | Direct slot mount in Mark V VME rack frame |
| Weight | Approx. 2.2 lbs (1.0 kg) |
Application Scenarios & The “Trench” Experience
In our field experience, cross-brand part number confusion happens frequently during emergency plant outages—especially when a Yokogawa DCS communicates with a GE turbine panel in the same control room. An engineer tracking down a communication loss between the Yokogawa operator station and the turbine controller might mistake a failed 2302-32-VLE-2 card in the GE panel for a Yokogawa module. Identifying the true OEM manufacturer immediately prevents days of delayed procurement and ensures you order the exact board needed for the turbine rack.
- Heavy-Duty Gas Turbines (GE Frame 6/7/9): Executes governor control, fuel valve positioning, and exhaust temperature averaging.
- Steam Turbine Controls: Manages high-pressure throttle valves, extraction steam logic, and overspeed protection loops.
- DCS-to-Turbine Interfacing: Serves as the processing backbone in the GE panel while transmitting system status and telemetry to a primary Yokogawa CENTUM DCS.
2302-32-VLE-2
2302-32-VLE-2
Transparency SOP: Quality Assurance & Testing
We test our turbine control hardware on actual GE Speedtronic Mark V test racks to guarantee reliability:
- Inbound Visual Audit: Inspection of PCB traces, component solder joints, VME backplane pin condition, and part silkscreening.
- Static & Resistance Bench Test: Component-level verification of bus transceivers and power rail capacitors to prevent short circuits.
- VME Rack Power-On Test: Installed into a live Mark V rack to verify +5V DC draw, clock generation, and bootloader execution.
- Backplane Handshake Verification: Testing VMEbus handshake protocols and register read/write communication across the backplane.
- Thermal Burn-In: Card undergoes a 4-hour thermal chamber test under processing load to rule out heat-induced component failures.
- Anti-Static Packaging: Sealed in static-shielding bags and packed in heavy foam containers for safe transit.
The Veteran’s Tech Trap Guide (Crucial Value-Add)
If you are preparing to replace a 2302-32-VLE-2 module, keep these critical warnings in mind:
- ⚠️ Confirm the True OEM: Verify the manufacturer label on your faulted card. Searching for this number under “Yokogawa” in vendor databases will return no matches or lead to incorrect parts. Look for GE Speedtronic markings on the board faceplate.
- ❗ Never Hot-Swap on the VME Backplane: The GE Mark V VME rack is not hot-swappable. De-energize power to the specific core power supply (TCPS) before pulling or inserting the card to avoid blowing backplane drivers.
- ⚠️ Transfer Existing PROM Chips: Firmware is stored on socketed EPROM/PROM chips. You must move the existing PROM chips from your old board to the replacement board (or confirm identical revision numbers) so the turbine software matches the rest of the system.
- ❗ Check VME Pins for Bends: Use a light to inspect the male VME backplane pins inside the rack frame before seating the card. A bent backplane pin will short the 5V power bus and destroy the replacement board instantly.
Frequently Asked Questions (FAQ)
Q: Does Yokogawa manufacture a part number 2302-32-VLE-2?
A: No. The part number 2302-32-VLE-2 is manufactured by General Electric (GE) for the Speedtronic Mark V system. If your plant runs a Yokogawa DCS, this card resides in the auxiliary GE turbine control cabinet rather than the Yokogawa I/O racks.
Q: How does a GE 2302-32-VLE-2 communicate with a Yokogawa DCS system?
A: The GE Mark V panel typically connects to a Yokogawa CENTUM VP or CS 3000 system using a serial Modbus RTU link (via a Mark V Stage/Communicator option) or an Ethernet Modbus TCP gateway to share turbine operating parameters with the main DCS.
Q: What should I do if my system is throwing a VME bus fault on this board?
A: Turn off core power, remove the card, clean the edge connectors with isopropyl alcohol, inspect the backplane pins, and re-seat the card firmly. If the fault persists, swap the board with a known-good spare while keeping your original EPROM chips installed.
Q: Can I buy verified surplus 2302-32-VLE-2 boards with warranty?
A: Yes. Because GE has discontinued the Mark V series, high-quality tested surplus stock is the most cost-effective solution to avoid a complete turbine control upgrade.
Q: What warranty is provided on this replacement module?
A: We cover this unit with a full 12-month operational warranty. If the hardware experiences any functional failure under normal operating parameters within one year, we provide a prompt replacement or repair.
Start Chat
