GE Electric | DS200DCFBG1BNC | Field Contact Input Module
Product Description:
The GE DS200DCFBG1BNC is a Field Contact Input Module designed for GE’s Speedtronic Mark V gas/steam turbine control system. Its primary function is to interface with field devices (e.g., switches, relays, sensors) by receiving dry contact signals (open/close states), providing electrical isolation, converting inputs to digital logic levels, and transmitting status data to the Mark V controller for critical protection and control logic.
Product Parameters / Specifications (DS200DCFBG1BNC):
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Feature
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Specification / Description
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Manufacturer
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GE Energy / GE Industrial Systems
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Series
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Speedtronic Mark V Turbine Control System
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Part Number
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DS200DCFBG1BNC
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Module Type
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Digital Contact Input Module
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Primary Function
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Acquisition & Isolation of Dry Contact Field Signals
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Input Signal Type
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Dry Contact (Voltage-Free, Sink/Source)
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Number of Channels
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16 Channels (Typical Configuration)
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Isolation Voltage
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High Voltage Isolation (≥2000V AC) between Field & System
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Input Voltage Range
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Compatible with 24VDC/48VDC/125VDC Field Signals (Configurable)
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Response Time
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< 10 ms (Typical)
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Redundancy Support
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Designed for use in Redundant (Dual-Path) Mark V Systems
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LED Indicators
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Per-Channel Status LEDs (Input Active/Inactive)
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Connectors
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Screw Terminal Blocks for Field Wiring
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Mounting Location
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Installed in Mark V or Series I/O Pack
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Operating Temperature
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-40°C to +70°C (Industrial Grade)
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Key Features:
- High-Density Inputs: 16 discrete channels per module.
- Galvanic Isolation: Protects sensitive control electronics from field-side voltage spikes/transients.
- Dry Contact Interface: Compatible with switches, relays, breaker aux contacts.
- Fast Scanning: Rapid response critical for turbine protection trips (<10ms).
- Redundancy-Ready: Supports dual-redundant Mark V configurations.
- Diagnostic LEDs: Real-time per-channel status indication.
- Robust Design: Industrial-grade components for harsh power plant environments.
- Configurable Logic: On-board processing for debounce, latching, or voting logic.
Primary Function & Purpose:
The DS200DCFBG1BNC provides secure, isolated acquisition of critical binary field signals (e.g., emergency stops, pressure switches, valve limits) into the Mark V control system. It ensures reliable digital conversion and fast transmission of these signals for turbine protection sequences, interlock logic, and operational state monitoring.
Typical Applications & Use Cases:
- Trip System Inputs: Emergency stop (ESD), overspeed detection, vibration trips.
- Status Monitoring: Breaker position (52G/52CB), valve limit switches (open/close).
- Protective Devices: Lube oil pressure low, exhaust temperature high, flame detection.
- Interlock Signals: Startup permissives, sequence step confirmations.
- Auxiliary Contacts: Pump/compressor run status, filter differential pressure.
Application Field:
This module is deployed exclusively in turbine control systems within:
- Power Generation: Gas turbine (GT), steam turbine (ST), combined-cycle (CCPP) plants.
- Industrial Drives: Compressor/pump stations using turbine drivers.
- Marine Propulsion: Naval or commercial vessel turbine engines.
It operates in the critical safety and control layer of Industrial Control Systems (ICS) for energy infrastructure, requiring SIL 2/SIL 3 compliance for protection functions.
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