GE IS215ACLEH1AB / IS200ACLEH1ABA Application Control Layer Module

Technical Specifications

Model: IS215ACLEH1AB (Assembly Unit), IS200ACLEH1ABA (Base Board)

Brand: GE（GE Vernova）

Product Type: Application control layer outer‑loop controller module

Matching System: GE Speedtronic Mark VI turbine control system, EX2100 generator excitation system

Power Supply: Backplane 24VDC power supply, working voltage 22.5‑28.5VDC

Processor: 266MHz high‑performance application processor

Memory: FLASH for application firmware, NVRAM for non‑volatile parameter storage

Communication Interface: Dual 10/100Mbps Ethernet ports, two COM serial ports, VME backplane bus

Main Functions: AVR voltage regulation, PSS power system stabilizer, UEL / OEL limit logic, VAR/PF outer‑loop control

Indicator: Front‑panel multi‑LED status indicators for running, communication and fault alarm

Installation: 6U single‑slot VME rack plug‑in installation, fits ERBP / ERRB backplane

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

Humidity:5%‑95% non‑condensing

Protection Class:IP20

Weight:0.86kg

Dimension:340mm ×146mm ×25mm

Compatible System: Gas‑steam turbine, synchronous generator EX2100 excitation control cabinet

Core Function

ACLE application control layer module for Mark VI and EX2100 excitation system. IS215ACLEH1AB is the complete assembly unit, built upon IS200ACLEH1ABA base board. It executes excitation outer‑loop control algorithms including automatic voltage regulator, PSS power system stabilizer, reactive power and power factor regulation. It implements UEL/OEL excitation limit protection, communicates with DSPX inner‑loop board via VME backplane bus, and interacts with HMI and plant DCS through Ethernet and serial ports. It supports simplex and TMR triple‑modular redundant configuration, improves generator anti‑disturbance capability under grid oscillation and load fluctuation conditions.

Product Details

The IS215ACLEH1AB assembly adopts IS200ACLEH1ABA as the core base board, it is the outer‑loop application computing unit of GE EX2100 excitation control system.

The high‑performance processor runs outer‑loop control logic, calculates target set‑value and sends command to DSPX inner‑loop processor board. It realizes generator terminal voltage closed‑loop adjustment, power system oscillation suppression and excitation over‑excitation / under‑excitation limit protection. Dual Ethernet ports provide redundant network communication for human‑machine interface and plant DCS system; COM serial ports support local debugging and third‑party device connection. FLASH memory stores application firmware, NVRAM keeps configuration parameters after power loss. Front‑panel LED indicators clearly display module running status, network link and fault information for convenient on‑site inspection and troubleshooting. Conformal coated circuit board improves anti‑vibration, moisture‑proof and anti‑electromagnetic‑interference performance, adapts to high‑noise harsh working environment of power‑plant excitation cabinet. Widely deployed in simplex and TMR triple‑modular redundant generator excitation cabinets for gas‑steam turbine units.

It belongs to critical outer‑loop control spare‑part for EX2100 excitation system, widely used in overhaul and renovation projects of power generation units.

It is important spare hardware for excitation outer‑loop logic debugging and defective IS215ACLEH1AB / IS200ACLEH1ABA module replacement.