ABB NF93A-2 HESG440280R2 HESG323662R1/HESG216665/K｜System Monitoring Board｜

NF93A-2 HESG440280R2

Core functionality
Multi channel power monitoring
Real time detection of various working voltages within the system, including the main control I/O、 Communication circuit power supply, abnormal voltage immediately triggers an alarm.
Comprehensive monitoring of system status
Collect the operating status, hardware faults, and communication interruption signals of the chassis backplane and various functional boards, and consolidate them in a centralized manner.
Fault alarm and contact output
Onboard relay dry contact, can be connected to external sound and light alarm, upper computer alarm circuit; Distinguish between general alarms/serious faults for quick operation and maintenance positioning.
Hardware self-test and status indication
Equipped with LED status lights, power on self-test, and local intuitive display of module, power supply, and bus operating conditions; Support fault locking, retain fault records before power off reset.
System interlocking coordination
Under abnormal working conditions, it can cooperate with the main control to complete logical actions such as interlocking protection, load reduction, emergency shutdown, etc., to ensure the safe operation of the entire DCS system.

Application scenarios
Mainly equipped with ABB’s old MasterPiece control system, it is widely used in in-service old units in industries such as power, petrochemicals, and metallurgy. As the power and hardware status monitoring unit of the entire control system, it is an essential spare part of the system.

ABB NF93A-2 HESG440280R2 HESG323662R1/HESG216665/K｜System Monitoring Board｜