Siemens 3-531-2986A Printed Circuit Board Card

The Cincinnati Milacron 3-531-2986A is a Logic Pac Input Interface circuit board used in Acramatic control systems, functioning as a dedicated logic control module that processes and routes external inputs to the Acramatic Logic Pac controller. Commonly installed as part of Cincinnati Milacron Acramatic CNC control assemblies, the 3-531-2986A is consistently described in catalogs and repair listings as a Logic Pac Input Interface or Logic Control Module for Acramatic Logic Pac systems. Variants and revisions appear in reseller listings, including 3-531-2986A-H and Rev E, which indicate minor revisions while preserving core compatibility with the Acramatic Logic Pac interface. Available through specialized surplus and repair sources, it is typically sold as refurbished or repairable spare part, reflecting its status as an older, maintained component within Cincinnati Milacron's Acramatic legacy.