Configured for primary control processing and system diagnostics in Mark V turbine control platforms, the GE DS200DCPAG1ABB (DCPA Digital Processor Control Card) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DS200DCPAG1ABB |
| Brand | GE Industrial Systems |
| Origin | USA |
| Weight | 0.85 kg |
| Dimensions | Standard Mark V PCB Form Factor |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 15 W (Nominal backplane load) |
| Functional Acronym | DCPA |
| Series | Mark V |
| Assembly Type | Normal Assembly |
| Revision Level | Revision G1ABB (A-rated primary, B-rated secondary, B-rated artwork) |
| Redundancy Modes | Simplex, Dual, Triple Modular Redundancy (TMR) |
| Component Profile | 17 Integrated Circuits, 24 Resistor Networks, Metal Film Resistors |
| Interconnect Interface | Vertical Pin Connectors (13 to 20 Pins) |
Backplane Bus Communication & Firmware Flash Compatibility
The DS200DCPAG1ABB communicates via the high-speed Mark V control backplane bus, managing deterministic data exchanges across dual or triple modular redundancy (TMR) bus topologies. The board architecture incorporates seventeen onboard integrated circuits and twenty-four resistor network arrays designed to maintain execution timing during inter-rack synchronization. System firmware flash compatibility ensures synchronized cycle execution between R, S, and T cores in TMR configurations, eliminating backplane bus latency and bus contention during critical turbine governing cycles. High-density edge connectors maintain backplane bus velocity while suppressing signal distortion across the local distribution bus.
Frequently Asked Questions
Q: How is backplane bus communication established across redundant control cores?
A: The board utilizes vertical pin connectors (13 to 20 pins) along the side and bottom edges to mate directly with the Mark V backplane bus. In TMR configurations, state synchronization data passes deterministically across isolated backplane channels to maintain phase alignment among the three control processors.
Q: What are the primary physical handling considerations for board replacement?
A: Power off the rack backplane before inserting or removing the card to prevent bus disruption. Static-sensitive components, including the seventeen integrated circuits and ceramic/axial capacitors, require ground-strap bonding to prevent electrostatic discharge (ESD) damage during hardware replacement.
Field Installation Guidelines
- Ensure complete de-energization of the Mark V rack power distribution bus prior to card insertion or removal.
- Wear an ESD grounding wrist strap attached to an unpainted metal chassis earth ground before handling the circuit card.
- Align the board with the designated rack card guides and press firmly until all vertical pin connectors (13 to 20 pin arrays) mate completely with the backplane.
- Verify that all interconnect cables are secured without exceeding minimum bend radius constraints.
- Apply power to the rack and verify that board diagnostics successfully complete self-test validation before placing the system into auto-execution mode.
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Guide
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