GE DS200SIOBH1ABA SIOB Standalone I O Board Mark V Turbine & EX2000 Excitation System
- Product Code: DS200SIOBH1ABA
- Availability: In Stock
GE DS200SIOBH1ABA SIOB Standalone I/O Board Mark V Turbine & EX2000 Excitation System
Manufacturer: GE Gas Power DS200 Mark V Series
Model: DS200SIOBH1ABA (SIOB Rev ABA)
Matching Hardware: DS200SDCCG5AHD EX2000 Excitation Main Control Card, Mark V CPU Board
Compatible Platform: Mark V Speedtronic VME rack, EX2000 digital excitation rack only
Type: Single-width VME slot hot-swappable mixed analog/discrete signal termination & processing board
Core Function: Mixed AI/AO/DI/DO signal isolation & conversion, hardware DIP/jumper configuration, dual 40pin field connectors, full channel fault diagnostics, ISBus backplane communication
1. Product Overview
DS200SIOBH1ABA (SIOB) is a universal mixed-signal I/O expansion board exclusive to GE Mark V turbine control and EX2000 generator excitation systems. It acts as a centralized signal interface between field sensors/actuators and rack main control CPU via the proprietary ISBus VME backplane.
The board integrates analog and discrete signal conditioning circuits with surge suppression and galvanic isolation to eliminate industrial EMI interference from excitation SCR cabinets and variable frequency drives. Abundant DIP switches and jumper pins support on-site hardware configuration without software tools. Dual 40-pin D-Sub connectors consolidate all field wiring for simplified cabinet maintenance.
Single front-panel LED provides global board health and communication status indication, with per-channel fault detection for open/short circuits, over-range analog signals and relay coil failures. Conformal coated PCB supports wide temperature industrial cabinet environments, hot-swap design allows online replacement without unit shutdown. GE discontinued original new production, only refurbished and surplus spare parts available aftermarket.
2. Full Technical Specifications
• Signal Type: Mixed bipolar ±10V analog & 24VDC discrete wet contact I/O
• Isolation Rating: 2500VAC dielectric withstand per signal channel
• Configuration Hardware: 20 configurable jumpers, 3 DIP switch banks (18 total switches)
• Field Connectors: Dual 40-pin D-Sub male/female connectors for field wiring
• Backplane Interface: Standard DS200 VME gold finger edge connector, ISBus serial bus
• Hot Swap Support: Yes, online replacement without rack power cut
• Diagnostic Indicator: Single front-panel RUN/FAULT status LED
• Rack Supply: 24VDC / 5VDC from VME backplane
• Typical Power Consumption: ~7.4W
• Operating Temperature: -20℃ ~ +70℃ ventilated turbine/excitation cabinet
• Humidity Range: 5% ~ 95% RH non-condensing
• Mechanical Size: Single-width DS200 VME slot, approx 0.4kg weight
• Certifications: CE, UL industrial power generation safety certification
3. On-board Hardware Layout
1. Front panel: Global status LED, dual 40pin D-Sub field wiring connectors, fixing latches
2. 3 groups of DIP configuration switches + 20 jumper pin arrays for hardware setup
3. Multi-channel analog signal conditioning, RC filter & MOV surge suppression circuits
4. Opto-isolated discrete DI/DO relay drive circuits
5. ISBus communication transceiver chip for VME backplane data exchange
6. Conformal coated PCB with printed part number DS200SIOBH1ABA silkscreen
4. System Hardware Matching Chain
• DS200SIOBH1ABA (SIOB): Mixed signal I/O expansion termination board
• DS200SDCCG5AHD (SDCC): EX2000 excitation main control CPU board
• Mark V Main CPU Card: Turbine speed/fuel sequence master controller
• Field devices: PT/CT transformers, RTD/TC temperature probes, valve limit switches, solenoid actuators, pressure/temperature switches
• Full signal chain: Field sensor/actuator → D-Sub field cable → DS200SIOBH1ABA isolation & conversion → ISBus VME backplane → SDCC/excitation CPU / Mark V turbine CPU → closed-loop regulation & interlock logic
• Platform Separation: Cannot be installed in Mark VI, IS200 VME, Honeywell System57, Emerson Ovation, GE Genius IC660 racks; exclusive Mark V DS200 series hardware
5. Typical Industrial Application Scenarios
• Combined-cycle gas turbine Mark V rack: Auxiliary mixed signal expansion for lube oil, fuel gas, cooling water system monitoring
• Coal-fired steam turbine EX2000 excitation cabinet: Exciter fan, cooling water valve, rotor temperature & voltage signal collection
• Industrial cogeneration gas turbine unit: On-site valve limit, local pushbutton discrete signal centralized processing
• Power plant unit overhaul: Flexible signal channel reconfiguration via DIP/jumpers for static commissioning test
GE Gas Power © DS200SIOBH1ABA SIOB Standalone Mixed I/O Board Mark V Speedtronic Turbine & EX2000 Excitation Control System