ALSTOM LE109A‑1 Logic Control Processor Module

Technical Specifications

Model：LE109A‑1

Brand：ALSTOM

Product Type：Logic control processor module

Applicable System：ALSTOM Alspa series control rack,turbine auxiliary control system

Supply Voltage：24V DC backplane power supply

Processor：32‑bit microprocessor

Memory：Configurable program and data memory

Communication Interface：Rack backplane internal system bus,serial diagnostic interface

Status Indicator：Multi‑color LED for power,running status,program fault and module failure

Built‑in Function：Control logic execution,I/O signal data processing,interlock logic calculation,diagnostic status upload

Working Temperature：‑20℃ ~ +70℃

Storage Temperature：‑20℃ ~ +70℃

Protection Class：IP20

Mounting：Plug‑in slot installation inside control rack

Weight：0.58kg

Product Brief:

LE109A‑1 is legacy plug‑in logic processor module for ALSTOM Alspa control rack. It acts as local main logic unit for turbine auxiliary control system. It receives digital and analog data from various I/O boards in the rack,executes pre‑compiled control and interlock logic,and sends output commands to corresponding field channels via backplane bus. Front‑panel LED indicators support quick on‑site running status and fault diagnosis without extra testing tools. Plug‑in cabinet mounting structure enables convenient disassembly and module replacement. This is EOL discontinued spare part,widely used for thermal power plant turbine auxiliary control system maintenance and renovation. Please confirm hardware revision,program version and rack compatibility before purchase. Strict ESD anti‑static protection shall be performed during installation.