Overview
Specification
| Parameter | Specification |
|---|---|
| Model / Part Number | DS3800HMPJ1A1D |
| Series | GE Mark IV / Speedtronic |
| Board Type | Microprocessor Control Board (TMR configuration) |
| System Compatibility | Gas and steam turbine control systems under Mark IV architecture |
| Redundancy Architecture | Triple‑Modular Redundancy (TMR) for high fault tolerance and reliability |
| Connectors | Backplane connector (edge finger) + separate cable connector for daughterboard interface |
| On‑board Components | 50+ integrated circuits including PROMs/EPROMs, resistor networks, diodes, capacitors, jumpers, test points, LED status indicators |
| Diagnostic Indicators | LED indicators for system status/error signalling |
| Mounting Format | Standard Mark IV rack / VME‑style slot; PCB with retention clips for tool‑less removal/install |
| Typical Board Dimensions | Standard DS3800 plug-in card format (approx. 300 × 230 mm) |
| Typical Board Weight | ~0.5 kg (board only) |
| Operating Temperature Range | 0 °C to +60 °C (standard control cabinet environment) |
| Power Supply / Backplane Power | Receives power via Mark IV backplane (+5 V DC typical), internal board-level power consumption under 10 W |
| Function | Real-time logic processing, interlocks, turbine control sequencing, redundancy voting, diagnostic logic, control I/O coordination |
| Usage Scope | Control logic for gas & steam turbines, replacing or upgrading legacy Mark IV boards, maintenance/redundancy in turbine control racks |
FAQ
A1: The board supports GE Mark IV (Speedtronic) turbine control systems for gas and steam turbine management.
Q2: Why is the TMR architecture important?
A2: TMR (triple‑modular redundancy) ensures fault tolerance by having three processors vote on all inputs, thereby reducing risk of failure and increasing system reliability.
Q3: Can this board replace original GE parts directly?
A3: Yes — it maintains standard backplane and rack‑mount format for direct integration into existing Mark IV control racks.
Q4: What diagnostics features are available on this board?
A4: It includes LED indicators and test points for system status monitoring, error detection, and maintenance diagnostics.
Q5: Is this board still viable for current industrial use?
A5: Yes — many operators continue to rely on Mark IV control systems; this board remains a critical component for turbine control, maintenance, and refurbishment projects.
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