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GE DS3815DMCC1P1A
Product Introduction: The GE DS3815DMCC1P1A is a digital motor control card engineered for the GE Speedtronic Mark IV gas and steam turbine control platform. It serves as the primary hardware interface for driving auxiliary motor contactors, fuel valve actuators, and cooling fan circuits. Some published sources also identify the “DS3815 DMCC” designation with Mark VIe dual redundant communication controller functionality, but the “1P1A” hardware revision is documented specifically as a Mark IV digital motor control card.
Detailed content
Technical Specifications:
- Manufacturer: General Electric (GE)
- Control system series: Speedtronic Mark IV Turbine Control
- Module type: Digital Motor Control Card (DMCC)
- Logic voltage: 24 V DC (nominal)
- Microprocessor: dedicated onboard real-time processing unit
- Hardware revision: 1P1A (specific component layout and firmware baseline)
- I/O: dedicated digital inputs for motor status, discrete outputs for contactor control
- Form factor: single-slot plug-in printed circuit board
- Mounting: standard Mark IV chassis rack slot
- Cooling: natural convection inside a clean, dust-free cabinet
- Weight: 1.50 lbs (0.68 kg)
- Lifecycle status: Legacy EOL (End of Life) — requires strategic buffer stock
Functional Features:
- Directs and monitors local digital motor control
- Monitors actuator loop feedback
- Executes localized digital control algorithms
- Unburdens central turbine control processors
- Ensures deterministic protection during start-up and shutdown sequences
Material Composition:
- Printed circuit board with onboard microprocessor
- Mark IV chassis rack-compatible construction
Structural Features:
- Single-slot plug-in PCB
- Installs in standard Mark IV chassis rack slot
Application Scenarios: GE Speedtronic Mark IV gas and steam turbine control platforms; auxiliary motor contactor control, fuel valve actuation, cooling fan circuit control for heavy industrial turbomachinery.
Working Principle: The card executes localized digital control algorithms for motor and actuator control, monitors real-time auxiliary feedback loops, and communicates with the central Mark IV turbine control processor to ensure deterministic protection during turbine start-up and shutdown sequences.
Installation Requirements:
- Isolate power supply to the specific Mark IV rack card slot following site Lock-Out/Tag-Out (LOTO) protocols
- Install in standard Mark IV chassis rack slot
- Ensure clean, dust-free cabinet for natural convection cooling
- Maintain 24 V DC nominal logic voltage supply
Usage Notes:
- This is a legacy EOL item — secure new surplus inventory as strategic buffer stock
- Genuine new surplus units eliminate unpredictable failure rates associated with third-party refurbished cards
- Having a certified spare on-site neutralizes extended forced outage risk during peak generation seasons
- Verify exact Mark IV configuration compatibility before installation
