free@home BI-M Binary Input Installation and Operating Instructions

This document provides installation and operating instructions for ABB free@home® binary input devices (models BI-M-4.230.1.1 and BI-M-10.230.1.1), which are modular rail-mounted devices used to capture 10-230 V AC/DC signals. It covers safety warnings, technical specifications, connection diagrams, operating elements, and maintenance procedures for the 4-fold and 10-fold input variants.