GE DS200DSPCH1ADA Digital Signal Processor Control Board (DSPC) For Mark V Speedtronic Turbine Control System
Manufacturer: GE General Electric (GE Vernova Turbine Controls)
Model: DS200DSPCH1ADA (DSPC Board, DS200 Series Mark V)
Matching System: GE Mark V Speedtronic Gas / Steam Turbine Control System; Not compatible with Mark VI or UR series protection relays
Type: VME rack dual-slot main DSP processor board, multi-daughterboard expandable, integrated trip relay outputs
Core Function: High-speed real-time DSP arithmetic for turbine load control, fuel valve & IGV actuator drive algorithms; high-precision analog/digital signal conditioning & sampling; execute ESD safety interlock logic; drive power converter modules; 12-channel trip solenoid relay outputs; front-panel LED status indicators, reset button, backplane dual VME bus connectors
1. Product Overview
DS200DSPCH1ADA (DSPC) is the core high-speed computing board of GE Mark V Speedtronic turbine control platform, installed in VME control rack and occupies two rack slots to accommodate stacked signal conditioning daughterboards.
Equipped with dedicated industrial DSP chip, it undertakes all time-critical turbine control calculations: fuel flow regulation, exhaust temperature monitoring, speed PID loop, load balancing, inlet guide vane (IGV) position control, and emergency trip protection logic. A dedicated signal conditioning sub-board buffers, isolates, scales 4–20mA analog sensors, thermocouple, RTD and digital pulse signals before DSP sampling.
12 built-in industrial relays directly drive 125VDC trip solenoids for ESD shutdown interlocks; dual rear VME backplane connectors communicate with all other Mark V I/O, communication and power supply boards. Front panel integrates multi-color LED run/fault indicators and manual reset pushbutton for on-site troubleshooting.
Wide industrial temperature hardware, full surge & ESD protection for all field signal circuits, widely deployed in combined-cycle power plant gas turbines, steam turbine main control cabinets. GE discontinued production, only surplus new stock and refurbished replacement boards available aftermarket.
2. Complete Technical Specifications
• Part Code: DS200DSPCH1ADA, base model DS200DSPCH1 with A revision upgrade
• Processor: High-performance dedicated digital signal processor (DSP)
• Rack Format: VME standard, occupies 2 horizontal slots
• Main Logic Power: +5VDC, 6A draw from rack backplane
• Field Aux Power: 28VDC nominal, operating range 18–32VDC
• Trip Relay Outputs: 12 SPST Form-A relays, rated 125VDC trip solenoid load
• Signal Support: 4–20mA analog, RTD, thermocouple, pulse frequency, dry contact DI
• Daughterboard Interface: Support stacked signal conditioning I/O sub-boards
• Front Panel: RUN, FAULT, COMM LED indicators, manual reset button, lock mounting screws
• Operating Temperature: -30℃ ~ +65℃ ventilated turbine cabinet
• Storage Temperature: -40℃ ~ +85℃
• Humidity: 5% ~ 95% RH non-condensing
• Physical Size: 159mm H × 178mm W × 63.5mm D, weight ~0.9kg
• Certification: CE, industrial turbine control safety standard GEI-100220
3. Internal Hardware Structure
1. Main DSP computing core PCB for real-time control algorithm operation
2. Stackable signal conditioning daughterboard: signal isolation, filtering, range scaling circuit
3. 12-channel trip relay drive array for emergency shutdown solenoid control
4. Dual rear VME backplane bus connectors for inter-board communication
5. Front panel status LED array and system reset button for local maintenance
4. Core Turbine Application Scenarios
• Combined-cycle power plant gas turbine main control cabinet: speed, load, exhaust temperature closed-loop regulation
• Steam turbine Mark V control rack: valve position control, generator load matching, emergency trip logic execution
• Petrochemical industrial gas turbine cogeneration unit: fuel valve, IGV actuator high-speed drive calculation
• Heavy-duty industrial turbine safety interlock core board, all ESD trip relay output expansion
GE Vernova © DS200DSPCH1ADA DSPC DSP Control Board Mark V Speedtronic Turbine System
