Technical Specifications Module Type: VME‑architecture servo‑valve analog drive output board Applicable System: GE Mark VIe Turbine Control System Output Signal Type: High‑precision analog servo drive signals Bus Interface: Mark VIe VME backplane bus Operating Power: Supplied via Mark VIe VME rack backplane Operating Temperature: ‑30 ℃ to +70 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Mechanical Dimension: Standard Mark VIe VME form‑factor plug‑in PCB board Certifications: CE, UL power generation industrial component compliance
Functional Features Operates under Mark VIe VME bus system to generate analog servo drive signals for turbine servo‑valves. Receives digital control commands from main controller through VME backplane bus. Interfaces with field servo‑valve actuators for fuel and steam valve closed‑loop position control. Front‑edge LED indicators reflect board running status and servo‑channel condition. Built‑in hardware self‑diagnosis detects channel abnormality and reports fault alarm flags.
Application Scenarios Servo‑valve drive output inside Mark VIe turbine control cabinet. High‑precision valve position regulation for power‑plant gas‑turbine and steam‑turbine units. Spare‑part replacement for existing Mark VIe power‑plant control hardware.
Structural Characteristics Standard VME‑form‑factor plug‑in PCB matching Mark VIe rack mechanical specification. Front‑edge LED status indicator array for board and servo‑channel status visualization. Rear VME golden‑finger connector for VME bus communication and power supply access. On‑board high‑precision analog servo drive and signal‑conditioning circuitry. VME standard locking mechanism for vibration‑resistant fixation inside rack.
Working Principle Main controller sends digital valve‑position commands to this board via VME backplane bus. On‑board circuit converts digital command values into analog servo drive signals to control field servo‑valve actuators.
Installation Requirements Insert board into designated VME slot of GE Mark VIe control rack. Complete rack protective grounding complying with GE power‑plant grounding specification. Field servo‑valve signal cables adopt shielded twisted‑pair cables and separate routing from high‑voltage power cables.
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