Description
GE IS230SNIDH1A – Digital Input Interface Module
GE IS230SNIDH1A, referenced with MRP689579, is a high-density digital input module for GE’s Mark VIe turbine control systems, processing discrete signals from field devices like limit switches, pressure contacts, and position indicators. This module accepts 24 VDC inputs with point isolation across 24 channels, delivering sequence-of-events (SOE) time-tagging at 1 ms resolution for precise event reconstruction in protection relays. It resolves signal integrity issues in turbine enclosures by providing optical isolation, debouncing filters, and Ethernet IONet connectivity to controllers, ensuring reliable status reporting in simplex or redundant architectures. The GE IS230SNIDH1A mounts to S-type terminal boards with front-panel diagnostics, supporting hot-plug service in continuous power generation operations.
Technical Specifications
- Brand: GE
- Model: IS230SNIDH1A
- Warranty: One Year
- Condition: 100% New & Original
- Series: Mark VIe IS230
- Input Channels: 24 (24 VDC, point isolated)
- Input Voltage: 18-32 VDC
- Response Time: 1 ms SOE
- Isolation: 1500 VDC channel-to-ground
- Communication: Dual Ethernet IONet
- Power Supply: 28 VDC from backplane
- Operating Temp: -30°C to +65°C
- Associated Part: MRP689579 [query context]
Key Features & Benefits
- Sequence-of-Events Recording: 1 ms time-tagging captures fault sequences accurately, supporting root-cause analysis for turbine trips and alarms.
- Point Isolation Design: Individual channel opto-isolation prevents common-mode failures, maintaining input integrity during electrical disturbances.
- High-Density Integration: 24 inputs in single-slot format maximizes I/O capacity in compact Mark VIe racks, optimizing panel space.
Application Scenarios
- Turbine Protection Relays: Monitors emergency shutdown contacts and overspeed detectors for immediate fault response in gas turbines.
- Valve Position Feedback: Tracks discrete status from fuel gas valves and diverter dampers in startup/shutdown sequences.
- Auxiliary System Interlocks: Interfaces lube oil pump starters and cooling fan contacts in balance-of-plant controls.
Frequently Asked Questions (FAQ)
- Q: What is the primary function of the GE IS230SNIDH1A?
- A: It provides 24 isolated 24 VDC digital inputs with 1 ms SOE capability for Mark VIe turbine status monitoring.
- Q: Is GE IS230SNIDH1A compatible with legacy systems?
- A: Yes, it uses standard STCIH1 terminal boards and Ethernet IONet, integrating with GE Mark VI controls via existing field wiring.
