Description
Component Snapshot At-a-Glance
- Model: IS230STCIH6A
- Alt. P/N: IS200STCIH6A (legacy cross-reference)
- Product Series: GE Speedtronic Mark VIe / VIeS
- Hardware Type: I/O pack power distribution board
- Key Feature: Redundant 24 VDC power input with over-voltage protection
- Primary Field Use: Distributes and conditions power to I/O packs on Mark VIe backplanes
GE IS220YDIAS1A
Hard-Numbers: Technical Specifications
- Input Voltage: 24 VDC (dual redundant inputs)
- Power Draw: 8.5 W max @ 24 VDC
- Isolation Rating: 2500 VAC field-to-backplane
- Operating Temp: -40°C to +70°C
- Memory: 16 MB SDRAM, 32 MB Flash
- Dimensions: 147 × 51.5 × 114 mm
- Weight: 0.60 kg
- Mounting: Direct backplane insertion
- Certifications: UL, CE, Class I Div 2, ATEX Zone 2
- Communication: IONet (redundant)
- Protection: Reverse polarity, over-current, short-circuit
The Real-World Problem It Solves
Unregulated power causes I/O pack lockups and spurious trips. Single-feed power creates single points of failure across critical turbine controls. delivers clean, redundant power with fault isolation to eliminate downtime.
Where you’ll typically find it:
- Gas/steam turbine Mark VIe control racks
- I/O pack power distribution in power generation plants
- Critical process control systems requiring redundant power
Bottom line: ensures stable power delivery for uninterrupted turbine operation.
Hardware Architecture & Under-the-Hood Logic
features a dedicated microcontroller and redundant power switching circuitry. It manages power distribution and diagnostics independently of the main controller.
- Dual 24 VDC inputs feed redundant power paths.
- Automatic switchover detects input failure and transfers to secondary feed.
- Over-voltage/over-current protection clamps transients and isolates faults.
- Local processor monitors voltage, current, and temperature.
- Power routed to I/O packs via backplane connectors.
- Diagnostic data transmitted over IONet to controller.
- Front LEDs indicate power status, faults, and redundancy mode.
- Internal temperature sensor triggers alarms at >70°C.
Field Service Pitfalls: What Rookies Get Wrong
Single Power Feed InstallationRookies connect only one power input. Loses redundancy; single failure kills all I/O packs.
- Field Rule: Terminate both P1 and P2 inputs; use separate power sources.
Inadequate Wire GaugeUsing 22 AWG wire causes voltage drop. Results in under-voltage faults and intermittent resets.
- Quick Fix: Use 18 AWG stranded for power runs >3m; 20 AWG max for short runs.
Poor Ventilation Around ModuleStacking modules blocks airflow. Overheating triggers thermal shutdowns.
- Field Rule: Leave 30mm clearance above/below for heat dissipation.
Commercial Availability & Pricing Note
Please note: The listed price is for reference only and is not binding. Final pricing and terms are subject to negotiation based on current market conditions and availability.
