GE IS215UCVEH2AF | Mark VI VME Controller Card, VMIVME-7614-133, Surplus Stock

Description

Key Technical Specifications

Product Introduction

A failed controller card in a turbine control system doesn’t just lose processing power — it severs the brain-to-body connection between the control logic and every critical turbine function: fuel control, speed regulation, temperature monitoring, and emergency trip execution. The GE IS215UCVEH2AF sits at the heart of the Mark VI Speedtronic control architecture, serving as the Universal Control VME (UCVE) processor that runs the real-time control algorithms keeping your gas or steam turbine operating safely and efficiently.

This is GE’s VME-format controller card for the Mark VI Speedtronic turbine control system, designed for both simplex and TMR (Triple Modular Redundant) configurations in power generation and mechanical drive applications. The card functions as the central processing unit within the Mark VI VME rack, executing the turbine control program, acquiring and processing I/O data from field devices, and coordinating communication between all modules in the control system. With 16MB of data capacity, it handles the complex control loops required for turbine startup, load management, speed governing, and protective shutdown sequences.

The IS215UCVEH2AF features a front panel with multiple communication interfaces: an Ethernet port for network connectivity to the HMI and plant control systems, two COM (serial) ports for legacy device communication or configuration, and a LAN port for local network integration. A mezzanine card slot on the front panel allows for application-specific expansion — such as additional communication protocols or specialized I/O interfaces — without requiring a separate rack slot. The card installs in either a 13-slot or 21-slot Mark VI VME rack and is secured with top and bottom front-panel screws, ensuring a solid mechanical connection in vibration-prone turbine hall environments.

Power is supplied via the VME backplane at 24VDC — no external power supply required. In TMR configurations, three UCVE cards operate in parallel, voting on control outputs to provide fault tolerance against single-card failures. This is critical for turbine protection systems where a single processor failure must not result in an uncommanded trip or, worse, a failure to trip when needed. Bottom line — if your Mark VI rack has lost its controller card, this UCVE processor restores the computational core so turbine control and protection functions can resume.

GE IS215UCVEH2AF VMIVME-7614-133350-017614-133 E

QA/QC Transparency SOP

1. Intake & Origin Verification: Every GE IS215UCVEH2AF is verified against GE part databases to confirm it’s a genuine Mark VI UCVE controller card. We check the model number, alternate part numbers (VMIVME-7614-133, 350-017614-133 E), and revision marking before it enters the test queue.
2. Visual & Mechanical Inspection: The card is inspected for physical damage, corrosion, or burnt components. The front panel is checked for intact Ethernet, COM, and LAN ports with no bent pins. The mezzanine card slot is inspected for debris or damage. The VME edge connector pins are examined for straightness and cleanliness. Top and bottom mounting screws are verified to thread correctly.
3. Power-On & POST Test: The card is installed in a verified Mark VI VME rack with 24VDC backplane power applied. We verify the card powers up correctly, completes its power-on self-test (POST), and the front-panel status LEDs indicate normal operation (no fault LEDs illuminated).
4. Communication Interface Test: Each front-panel interface is tested: Ethernet port link establishment and data transmission, both COM ports for serial communication at standard baud rates, and LAN port connectivity. This ensures the card can communicate with the HMI, engineering workstation, and other system components.
5. Processor Function & Memory Test: The card’s processor is verified to execute control logic correctly. The 16MB data capacity is tested for read/write integrity. In TMR test configurations, we verify the card participates correctly in the voting process with other UCVE cards — output agreement, fault detection, and graceful degradation on single-card failure.
6. Mezzanine Slot Verification: If a mezzanine card is installed, we verify the IS215UCVEH2AF correctly recognizes and communicates with the daughter card. The mezzanine slot’s electrical connections are verified for proper signal routing.
7. Final QC & Anti-Static Packaging: Passed cards are sealed in ESD-safe bags with desiccant, front-panel ports are capped to prevent contamination, and a QC sticker with test date, technician ID, and revision is applied.

Field Engineer Gotchas

• Revision Compatibility: The IS215UCVEH2AF has multiple hardware revisions. Verify the revision of the failed card in your rack before ordering — mixing revisions in a TMR configuration can cause compatibility issues or voting mismatches. Check the label on your existing card and match the revision exactly.
• TMR Voting Synchronization: In TMR configurations, all three UCVE cards must run synchronized firmware versions. A firmware mismatch between cards can cause voting errors that look like random processor faults. Verify firmware versions across all three cards before commissioning a TMR replacement.
• Mezzanine Card Dependency: If your application uses a mezzanine card (e.g., for additional communication protocols), verify the mezzanine card is compatible with the revision you’re installing. Some older mezzanine cards may not be recognized by newer UCVE revisions. Document your mezzanine card part number and verify compatibility.
• VME Rack Slot Assignment: The must be installed in the correct VME rack slot as defined by your Mark VI system configuration. Installing the card in the wrong slot can prevent the system from recognizing it or cause address conflicts with other modules. Verify the slot assignment in your system documentation before installation.
• Front-Panel Port Sealing: The Ethernet, COM, and LAN ports on the front panel are exposed to the turbine hall environment. If port caps are missing, dust and moisture can corrode the connectors, causing intermittent communication failures. Always replace port caps when the card is not actively cabled.
• 24VDC Backplane Power: The card draws power from the VME backplane at 24VDC. Verify the backplane power supply is functioning correctly before installing a replacement — a marginal power supply can cause the new card to fault repeatedly, making it appear defective when the real issue is upstream. Measure backplane voltage at the card slot before installation.
• Firmware Loading: A replacement may ship without the application-specific firmware loaded. You’ll need to download the correct firmware from the engineering workstation using GE’s Mark VI programming software before the card can execute your turbine control program. Have your firmware backup ready before starting the replacement.

GE IS215UCVEH2AF VMIVME-7614-133350-017614-133 E

Application Scenarios

• Gas Turbine Combined Cycle Power Plant: In a GE Frame 9 gas turbine combined cycle plant, three cards operate in TMR configuration within a 21-slot Mark VI VME rack. The UCVE processors execute the fuel control algorithm, speed governing loop, and exhaust temperature control in real-time, processing inputs from thermocouple cards (VTCCH), servo valve cards (VSVOH), and turbine speed pickup cards (VTURH). The Ethernet port connects to the plant HMI for operator monitoring, while the COM ports interface with the gas compressor control system. A single UCVE card failure is masked by the TMR voting logic — the turbine continues running without interruption while the failed card is hot-swapped.
• Steam Turbine Generator Island Control: In a coal-fired power plant, the serves as the primary controller for a GE steam turbine generator. The card processes throttle valve position feedback, generator load demand signals from the plant DCS, and bearing temperature alarms. The LAN port connects to the station LAN for integration with the broader plant control network. During a turbine startup sequence, the UCVE card executes the automatic start-up program, ramping speed through critical zones and synchronizing the generator to the grid. The 16MB data capacity handles the extensive startup logic and historical data logging required for post-start analysis.
• Mechanical Drive Gas Turbine for Pipeline Compression: In a natural gas pipeline compressor station, a GE gas turbine drives a centrifugal compressor. The executes the compressor surge control algorithm in addition to the turbine control logic, coordinating anti-surge valve positioning with turbine speed and load. The COM ports connect to the compressor’s independent protection system for hardwired backup trip signaling. The mezzanine card slot hosts a Profibus DP interface card, enabling communication with the pipeline SCADA system. The TMR configuration ensures that a single processor failure doesn’t cause an uncommanded compressor shutdown, which would disrupt pipeline throughput.

FAQ

A: Both are UCVE controller cards for the Mark VI system, but they represent different hardware revisions or firmware configurations. The “AF” and “AB” suffixes indicate specific revision levels. Verify which revision your system was originally configured with before ordering a replacement, especially for TMR applications where all three cards should match.

Q: Can I use this card in a simplex (non-TMR) configuration?
A: Yes. The supports both simplex and TMR configurations. In simplex mode, a single card operates as the sole controller. In TMR mode, three cards operate in parallel with voting logic for fault tolerance.

Q: What communication interfaces are available on the front panel?
A: The front panel includes 1x Ethernet port, 2x COM (serial) ports, 1x LAN port, and a mezzanine card slot for application-specific expansion.

Q: Does this card require an external power supply?
A: No. The draws 24VDC power from the Mark VI VME rack backplane. No external power supply is needed.

Q: What rack sizes is this card compatible with?
A: The installs in either a 13-slot or 21-slot Mark VI VME rack.

Q: Can I hot-swap this card?
A: The Mark VI system supports hot-swappable controller cards in TMR configurations — a failed card can be removed and replaced while the other two cards maintain control. In simplex configurations, hot-swapping will interrupt turbine control and likely cause a trip. Always follow GE’s hot-swap procedure and verify your system’s redundancy configuration before attempting a live replacement.

A: The Mark VI platform is a legacy product line from GE. The is a discontinued spare part. Surplus stock is available from secondary suppliers. For new installations or major upgrades, verify GE’s current turbine control platform offerings (such as Mark VIe) as a long-term replacement strategy.

Q: What’s the lead time for a replacement?
A: Surplus stock is typically available for 1-3 day shipment. Since the is the central processor for the Mark VI system and a failed card can trip the turbine, we strongly recommend keeping a verified spare on the shelf — especially for simplex configurations where there’s no redundancy.