750-669/000-003 Fail-Safe I/O Module Manual

This document is a technical manual for the WAGO 750-669/000-003 fail-safe I/O module, which features 4 digital inputs and 4 relay outputs (4FDI/4FRO) operating at 48 VAC or 60 VDC with a 6 A rating. It covers device description, connection diagrams, display elements, technical data, safety parameters, and PROFIsafe V2.0 iPar configuration for use in safety-related automation applications.