Yokogawa ADR541 Relay Output Module

Feature & Principle

It is a field I/O relay output module for Yokogawa CENTUM VP DCS. It receives digital control commands from the FCS backplane bus and drives external field devices via isolated relay contacts. Each channel provides dry contact switching, which can directly control solenoid valves, contactors, indicators and alarm devices. This module supports dual redundant configuration to improve system reliability for critical process loops. It works with matched terminal boards and is widely used in continuous process industries.

Specifications

Model: ADR541 Brand: Yokogawa Channel count: 16 relay isolated channels Load rating: 24–110 VDC, 100–240 VAC 50/60Hz System compatibility: CENTUM VP FCS Redundancy: Support dual redundant installation Installation: FCS rack slot mount Application: Petrochemical, power plant, chemical, oil & gas process control cabinet Certification: CE, IEC

Components & Diagnostics

Relay array, logic control PCB, backplane connector, status LED indicators, surge protection circuit. Common faults: relay contact burnout, channel no switching, backplane communication failure, indicator abnormality.

Product Brief

ADR541 relay output module, Yokogawa CENTUM VP DCS discrete control spare widely used for process control cabinet overhaul and replacement.