GE DS200LDCCH1AHA Drive Control Card The GE DS200LDCCH1AHA, also cataloged as the DS200LDCC Drive Control Card, operates as a dedicated hardware component for...
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Keterangan
GE DS200LDCCH1AHA Drive Control Card
The GE DS200LDCCH1AHA, also cataloged as the DS200LDCC Drive Control Card, operates as a dedicated hardware component for turbine logic execution and I/O coordination within GE Mark V Speedtronic systems.
Hardware Specifications
Parameter
Specification
Model
DS200LDCCH1AHA
Brand
GE
Origin
USA
Weight
0.95 kg
Dimensions
160 mm x 233 mm
Operating Temp
0 to 60 deg C
Power Consumption
+5 VDC, +15 VDC, +24 VDC (via rack backplane)
Processor
16-bit DSP microprocessor
Memory
EPROM firmware storage, RAM for logic execution
Analog I/O
Multiple isolated channels for turbine sensors
Digital I/O
Optically isolated inputs and relay outputs
Communication
ARCNET, DLAN, RS-232 diagnostic port
Isolation
Optical isolation between field and logic signals
Form Factor
6U VME board
Certifications
UL, CSA component level
Backplane Bus Communication & Logic Execution
The board leverages high-speed backplane bus communication velocity to execute deterministic control loops for gas and steam turbine sequencing. Its internal processing architecture routes real-time data across ARCNET and DLAN interfaces with minimal latency, supporting parallel I/O density scaling throughout the Mark V rack. Onboard EPROM chips manage firmware flash compatibility, preventing revision mismatches during hardware replacement cycles and ensuring consistent timing during critical turbine speed and load transitions.
Frequently Asked Questions
Q: What power rails must be active on the backplane for proper board initialization?
A: The board requires operational +5 VDC, +15 VDC, and +24 VDC rails delivered directly from the Mark V rack backplane bus before logic processing and optical isolation circuits function.
Q: Can the board be inserted or removed while the rack backplane is energized?
A: No, live insertion or hot-swapping is prohibited. De-energize the rack power supply and await full capacitor discharge prior to inserting or removing the card from the 6U VME chassis.
Q: How is diagnostic communication handled during field commissioning?
A: An onboard RS-232 port provides local serial diagnostic terminal access, allowing technicians to review hardware status and controller firmware revisions directly without disrupting ARCNET or DLAN bus operations.
Field Installation Guidelines
Ensure power to the Mark V chassis is fully isolated before handling the board. Observe strict ESD safety protocols by wearing a grounded wrist strap attached to the panel frame. Align the 6U VME board card edges with the chassis guide rails, pressing firmly until the backplane connectors seat completely. Tighten all faceplate retaining screws to maintain chassis grounding integrity and prevent mechanical vibration from unseating the board. Verify all field wiring shields are grounded at a single point to prevent signal noise on analog and digital interface channels.
