Emerson A6220 Speed Monitor Module

The Emerson A6220 is a speed monitor module designed for the AMS 6500 Machinery Health Monitor system. It receives signals from magnetic or eddy current speed probes to measure rotating shaft speed, acceleration and overspeed conditions for critical rotating machinery protection.

This single-slot module follows API 670 industry standards, equipped with comprehensive self-diagnosis and configurable overspeed alarm and trip outputs. It is widely stocked as spare parts for rotating equipment monitoring systems in power, oil & gas and petrochemical industries.

Main Specifications

• Brand: Emerson
• Model: A6220
• Product Type: Speed Monitor Module
• System Compatibility: AMS 6500 Machinery Health Monitor
• Input: Compatible with magnetic pickup and eddy current speed probes
• Complies with API 670 machinery protection specifications
• Built-in channel self-diagnosis for cable and probe fault detection
• LED indicators for running status, alarms and module faults
• Operating Temperature Range: 0°C ~ +60°C
• Plug-in installation for standard AMS 6500 rack chassis

Core Functions

• Receive pulse signals from speed probes to continuously calculate rotating shaft speed
• Monitor overspeed conditions and support configurable alarm and trip threshold settings
• Automatically detect probe failure, cable open circuit and signal abnormal conditions
• Transmit real-time speed data to host monitoring system and DCS via backplane bus
• Front panel LED indicators help engineers quickly troubleshoot channel and module faults
• Provide reliable overspeed protection to avoid catastrophic damage to rotating machines
• Support startup speed monitoring and critical speed tracking for turbo machinery
• Modular plug-in design supports convenient disassembly and rapid on-site replacement
• Realize interlock protection logic coordination with other AMS6500 monitoring modules
• Expand system measurement points for multi-unit rotating machinery monitoring projects

Application Scenarios

• Thermal power plant steam turbine and generator overspeed protection systems
• Oil & gas plant centrifugal compressors and turbo machinery monitoring racks
• Petrochemical refinery turbine, large pump rotating equipment protection units
• Hydropower plant water turbine rotational speed monitoring and protection cabinets
• Offshore platform gas compressor machinery health monitoring equipment
• Fertilizer plant high-speed turbo machinery condition monitoring systems
• Long-distance pipeline turbocompressor safety monitoring platforms
• Waste incineration power plant auxiliary turbine speed monitoring systems
• Retrofit, maintenance and spare parts replacement of existing AMS 6500 systems
• Emerson speed monitor spare parts stock and field emergency replacement projects