ABB UNS 1860B-P V1 GDI PCB

Application Scenarios

At a natural gas processing plant in Texas,frequent power fluctuations were causing intermittent resets in the DCS cabinet,leading to false alarms and temporary loss of control.The root cause was traced to aging,non-redundant power boards in the control racks.The maintenance team replaced the legacy units with the ABB UNS 1860B-P V1 GDI PCB Completed PB,which restored clean,stable 24V DC power across all modules.Since the upgrade,the facility has reported zero power-related controller resets over 14 months.The ABB UNS 1860B-P V1 GDI board’s integrated filtering and redundancy support proved essential in mitigating electrical noise from nearby compressors and switchgear,demonstrating its value in maintaining process continuity in electrically noisy environments.

Parameter

Main Parameters Value/Description

Product Model ABB UNS 1860B-P V1 GDI PCB Completed PB

Manufacturer ASEA Brown Boveri(ABB)

Product Category Power Supply Board/PCB Assembly

Function Primary DC Power Distribution&Regulation

Input Voltage 85–264 V AC or 100–300 V DC(Dual Input for Redundancy)

Output Voltage 24 V DC(Regulated)

Output Current Up to 10 A(Total Load Capacity)

Efficiency>85%

Protection Features Overvoltage,Overcurrent,Short-Circuit,Surge Protection

EMC Compliance IEC 61000-4-2/3/4/5(ESD,Surge,EFT)

Operating Temperature 0°C to 50°C

Installation DIN Rail or Panel Mount(Symphony Cabinet Compatible)

Note:”Completed PB”indicates a fully populated and tested printed board assembly(PBA),ready for installation without additional component fitting.

Technical Principles and Innovative Values

Innovation Point 1:The ABB UNS 1860B-P V1 GDI PCB features dual redundant input power paths,enabling seamless switchover during AC/DC supply failure—critical for maintaining DCS operation during utility outages or rectifier faults.

Innovation Point 2:Integrated EMI/RFI filtering and transient voltage suppression(TVS)protect sensitive downstream electronics from electrical noise and lightning-induced surges,enhancing system resilience in industrial plants.

Innovation Point 3:High-efficiency switching power design minimizes heat generation,reducing thermal stress on adjacent components and extending the lifespan of the entire control cabinet.

Innovation Point 4:Pre-assembled and factory-tested(“Completed PB”),the board eliminates field soldering or component-level repairs,ensuring consistent quality and reducing commissioning time.

Innovation Point 5:Designed for compatibility with ABB Symphony Plus backplane architecture,the ABB UNS 1860B-P V1 GDI board delivers clean power directly to controllers like UNS0874A or UNS2880B-P,forming a reliable power backbone.

Application Cases and Industry Value

In a nuclear power station in South Korea,the control system required a complete power subsystem overhaul to meet updated safety standards.The engineering team selected the ABB UNS 1860B-P V1 GDI PCB Completed PB for its proven reliability and redundancy features.After deployment across multiple safety-classified racks,the site passed rigorous qualification tests,including voltage dip and interruption scenarios.Operators noted a 90%reduction in power-related anomalies,and the modular design allowed for quick replacement during preventive maintenance without system downtime.

At a large petrochemical refinery in Europe,the ABB UNS 1860B-P V1 GDI board was used to replace obsolete power supplies in aging DCS cabinets.The improved voltage regulation stabilized analog signal accuracy across temperature transmitters and pressure sensors,reducing measurement drift by 15%.Maintenance staff praised the board’s clear LED indicators for input status and fault detection,which simplified troubleshooting during shift changes.

Related Product Combination Solutions

ABB UNS0874A:Main controller powered by the ABB UNS 1860B-P V1 GDI PCB,ensuring stable CPU operation.

ABB UNS2880B-P:High-performance process controller that relies on clean 24V DC from the ABB UNS 1860B-P V1 GDI board.

ABB 3BSE014967R1:Redundant power supply module that can feed the ABB UNS 1860B-P V1 GDI PCB for full end-to-end redundancy.

ABB VD4100/VQ Series I/O:Digital and analog modules powered via the same distribution rail,benefiting from noise-free supply.

ABB Control Builder Plus:Software used to monitor system health,including power status reported through I/O linked to the GDI board.

ABB 3BFE014967R0002:Cabinet rack assembly where the ABB UNS 1860B-P V1 GDI PCB is mounted and connected.

ABB CP571 HMI:Operator station powered through the same reliable bus,ensuring consistent human-machine interface performance.

ABB 3BSC900001R1:Communication module that depends on stable power for uninterrupted network traffic.

Installation,Maintenance,and Full-Cycle Support

The ABB UNS 1860B-P V1 GDI PCB Completed PB is designed for fast,error-free installation.Before replacement,disconnect all power sources and verify system grounding.Mount the board on the DIN rail or backplane bracket,then connect the redundant AC/DC input cables using labeled terminals.The output bus bar links directly to the DCS power distribution rail.Once powered,green LEDs confirm normal operation,while red indicators signal input loss or internal fault.No configuration or calibration is required—plug-and-play functionality ensures rapid return to service.

Routine maintenance is minimal due to the solid-state design and lack of moving parts.Periodic inspection should include checking terminal tightness,dust accumulation,and LED status.The board’s long-life electrolytic capacitors and conformal coating enhance durability in humid or corrosive environments.In case of failure,the entire ABB UNS 1860B-P V1 GDI PCB is replaced as a unit—no field repair is recommended.We provide full lifecycle support,including technical documentation,compatibility verification,and access to tested spare units,ensuring your control system remains operational for decades.

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