GE IS230SNIDH1A Digital Input I/O Pack, MRP689579

Technical Specifications

Model: IS230SNIDH1A, MRP689579

Brand: GE（GE Vernova）

Product Type: SNID isolated digital input I/O pack

Matching System: GE Speedtronic Mark VIe turbine control system

Power Supply: 24VDC, working voltage 18‑30VDC

Input Channels: 16‑channel galvanic isolated digital input

Signal Type: Dry‑contact / wet 24VDC discrete input

Debounce Time: Configurable 1‑100ms hardware debounce filter

Isolation: Channel‑to‑channel galvanic isolation

Communication: Dual redundant IONet Ethernet interface

Feature: Hot‑swap support, built‑in channel self‑diagnostics

Indicator: Front‑panel LED for power, network link and each channel status

Installation: Standard Mark VIe rack plug‑in I/O pack

Operating Temperature:‑40℃ ~ +70℃, non‑condensing

Humidity:5%‑95% non‑condensing

Protection Class:IP20

Weight:0.42kg

Dimension:122mm ×84mm ×42mm

Compatible System: Gas turbine, steam turbine, combined‑cycle generator control cabinet

Core Function

SNID digital input I/O pack for Mark VIe turbine control system. It collects discrete status signals from field limit switches, pressure switches, emergency stop buttons and auxiliary relay contacts. Hardware debounce filter eliminates signal jitter caused by field interference. It transmits channel status data to main controller via redundant IONet bus, supports loop fault diagnosis. Hot‑swap design allows module replacement without system shutdown. It supports simplex and TMR triple‑modular redundant turbine control configuration, provides reliable discrete signal acquisition for turbine interlock and protection logic.

Product Details

The IS230SNIDH1A with part number MRP689579 belongs to SNID series digital input I/O pack for GE Speedtronic Mark VIe turbine control system.

This compact plug‑in distributed I/O module acquires field dry‑contact and 24VDC switch signals. Configurable hardware debounce function suppresses contact bounce and high‑frequency electromagnetic noise interference, improving signal acquisition stability. Dual redundant IONet Ethernet realizes reliable data interaction with Mark VIe main controller. On‑board diagnosis monitors channel abnormal state and reports fault information to control system. Hot‑swap function facilitates on‑site maintenance without stopping the control system. Front‑panel LED indicators clearly display module power, network communication and every input channel working state for convenient commissioning and routine inspection. Conformal coated circuit board improves anti‑vibration, moisture‑proof and anti‑electromagnetic‑interference performance, adapts to harsh working conditions of power‑plant turbine cabinet. Widely deployed in simplex and TMR triple‑modular redundant gas‑steam turbine control cabinets.

It belongs to critical digital input spare‑part for Mark VIe turbine control system, widely used in overhaul and renovation projects of power generation units.

It is important spare hardware for discrete signal loop debugging and defective IS230SNIDH1A module replacement.