Technical Specifications Module Type: Discrete binary input interface board Applicable System: GE Mark VI Turbine Control System Input Signal Type: Field contact / discrete binary status signals Backplane Interface: Mark VI internal backplane bus Operating Power: Supplied via Mark VI rack backplane Operating Temperature: ‑30 ℃ to +70 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Mechanical Dimension: Standard Mark VI plug‑in PCB board Certifications: CE, UL power generation industrial component compliance
Functional Features Multi‑channel discrete binary input acquisition for turbine field contact signals. On‑board electrical isolation separates field circuit from control internal circuit. Signal filtering suppresses field contact bounce and electromagnetic interference. Transmits contact status data to main controller via backplane bus. Front‑edge LED indicators show real‑time on‑off status of each input channel. Hardware self‑diagnosis detects board internal circuit fault and generates fault flags.
Application Scenarios Field discrete status signal collection for gas‑turbine and steam‑turbine control system. Interlock contact and limit‑switch signal input inside Mark VI control cabinet. Spare‑part replacement for existing Mark VI power‑plant control hardware.
Structural Characteristics Standard plug‑in PCB form factor compatible with Mark VI rack slots. Front‑edge LED indicator group for each channel status visualization. Rear golden‑finger connector for backplane bus communication and power supply. On‑board opto‑isolation and signal conditioning components. Mechanical locking assembly prevents board displacement under cabinet vibration.
Working Principle Field contact on‑off signals connect to board input channels. Input signals pass through isolation and filter circuits. Contact state is converted into digital logic values. Status data is transmitted to main controller through backplane bus.
Installation Requirements Insert PCB into designated slot of Mark VI standard control rack. Complete rack protective grounding according to GE power‑plant grounding specification. Field discrete signal cables adopt shielded wiring and avoid parallel routing with high‑power cables.
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