Application Scenarios
At a combined-cycle gas turbine(CCGT)plant in North America,operators experienced intermittent failures in the generator breaker trip circuit.Investigation traced the issue to signal degradation in aging digital I/O modules.The engineering team replaced the legacy boards with the ABB YPQ202A I/O Board,which features full galvanic isolation and advanced noise filtering.Post-upgrade,the system demonstrated zero spurious trips over a 12-month period,and signal integrity audits showed a 95%reduction in electrical noise.The YPQ202A’s high isolation voltage(2500 VAC)and EMI resistance directly addressed the plant’s electromagnetic interference challenges.In another case,a wastewater treatment facility in Scandinavia used the ABB YPQ202A I/O Board to control sludge pump sequencing and level alarm monitoring.The board’s fast scan time(<2 ms)and deterministic response ensured timely activation of backup pumps during peak inflow,preventing overflow incidents.Maintenance staff appreciated the clear LED diagnostics,which reduced troubleshooting time by over 60%.
Main Parameters
Parameter Value/Description
Product Model YPQ202A
Manufacturer ABB(Automation Products)
Product Category Digital Input/Output(I/O)Board
Number of Channels 32(16 digital inputs,16 digital outputs)
Input Voltage 24–48 VDC(configurable)
Output Type Relay or solid-state(depending on variant),isolated
Isolation 2500 VAC channel-to-channel and channel-to-ground
Communication Interface ABB proprietary backplane bus(for PM/CI series chassis)
Response Time<2 ms(input to output)
Installation Method Chassis-mounted(in ABB PM86x,CI8xx series cabinets)
Operating Temperature-10°C to+60°C(14°F to 140°F)
Environmental Protection Conformal coating option;compliant with IEC 61000-6-2 EMC standards
Note:High channel density and isolation make this board ideal for safety interlocks,turbine controls,and complex sequencing logic.
Technical Principles and Innovative Values
Innovation Point 1:The ABB YPQ202A I/O Board employs opto-isolators on all input and output channels,eliminating ground loops and protecting the controller from voltage surges and electrical noise—critical in high-power industrial settings.
Innovation Point 2:Designed for deterministic performance,the board synchronizes with ABB’s real-time control bus,ensuring precise timing for safety-critical applications like emergency shutdown(ESD)and turbine protection.
Innovation Point 3:Supports hot-swap functionality in redundant configurations,allowing field replacement without shutting down the entire control system—maximizing operational uptime and reducing forced outages.
Innovation Point 4:Integrated diagnostics with per-channel LED indicators enable rapid fault detection for open circuits,short circuits,and power loss,significantly reducing mean time to repair(MTTR).
Innovation Point 5:Manufactured with industrial-grade components and optional conformal coating,the YPQ202A withstands harsh conditions including humidity,dust,and thermal cycling,ensuring long service life in continuous-process plants.
Application Cases and Industry Value
In a nuclear power plant’s auxiliary feedwater system,the ABB YPQ202A I/O Board was deployed to manage motor-operated valves and monitor pump status.Prior to installation,signal interference from nearby switchgear caused false alarms.After upgrading to the YPQ202A,the system achieved 99.98%signal reliability,and no false trips occurred during a 24-month monitoring period.The plant’s control engineer noted that the board’s isolation and noise immunity were key to meeting strict nuclear safety standards.
At a large offshore oil platform,the ABB YPQ202A I/O Board was used in the fire and gas detection system to trigger deluge valves and emergency shutdowns.The board’s fast response time and rugged design ensured reliable operation in the corrosive marine environment.Over five years of service,it maintained 100%availability,contributing to the platform’s perfect safety record.
Related Product Combination Solutions
ABB YPP120 61253431:Analog input board,often used alongside the YPQ202A for mixed-signal control in boiler and turbine systems.
ABB CI854 61253433:Communication interface module that links the YPQ202A to Profibus,Modbus,or Ethernet networks.
ABB PM864 61253430:Redundant CPU controller,commonly paired with the YPQ202A in high-availability DCS racks.
ABB YPI111 61253429:Digital input-only board,ideal for expanding input capacity in safety systems.
ABB YPO111 61253428:Digital output-only board,suitable for high-output applications like motor control centers.
ABB 3BSE018101R1:24VDC power supply unit,ensuring stable power delivery to the YPQ202A and other chassis modules.
ABB Symphony Plus DCS Software:Engineering suite for configuring,commissioning,and diagnosing the YPQ202A.
ABB 3HAC049287-001:Chassis adapter or mounting rack for integrating the YPQ202A into legacy or modern ABB control cabinets.
ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101 ABB GRID BREAKER UNIT GBU72 3BHE055094R0002 3BHE031197R0001 3BHB030310R0001 In stock!!! Interested parties please inquire
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