Emerson A6740 16-channel relay output module for AMS6500, API670 compliant, configurable alarm/trip relay outputs for turbomachinery protection.

Product Overview

• Part No: A6740
• Brand: EMERSON / EPRO

• Category: 16-Channel Output Relay Module A6740 is a 3U plug-in module for AMS6500 machinery health monitor. It receives alert and danger signals from monitoring cards and generates relay outputs via programmable Boolean logic with adjustable time delay. 16 SPDT relay channels drive external alarms and trip circuits. Front panel LEDs indicate relay status. Hot-swap function enables online replacement without interrupting protection logic. Widely used on turbines and compressors.

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Core Features

• 16 independent SPDT relay output channels
• Supports configurable logic and 0–30s delay function
• Accepts up to 60 alarm input signals from rack modules
• API670 standard, hot-swappable design
• Front panel LED status indicators

• 3U form factor for AMS6500 rack installation

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Technical Specifications

• Relay type: SPDT mechanical relay
• Operating temperature: 0°C ~ +65°C
• Storage temperature: -40°C ~ +70°C
• Power supply: 24VDC

• Protection Class: IP20 installed inside cabinet

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Compatibility & Application

• Fits Emerson AMS6500 monitor rack
• Used for steam turbines, gas turbines and centrifugal compressors
• Provides safety trip and alarm contact outputs for machinery protection