A413182 v.04 METSO

A413182 v.04   METSO Power Board

Product  Description：

Metso power boards (often integrated within Valmet automation systems, such as the maxDNA or DNA series, following company restructuring) are industrial-grade electronic assemblies engineered to distribute, regulate, and stabilize electrical energy. These boards serve as the core power distribution stage for distributed control systems (DCS) and quality control systems (QCS), converting raw incoming electrical supply into the precise, filtered DC voltages required by sensitive control processors and input/output modules.

Product Parameters

The technical composition of a Metso Power Board centers around robust energy conversion and rigorous power quality standards:

• Input Voltage Configurations: Designed to accept standard industrial feeds, typically supporting 115V AC or 230V AC single-phase inputs, as well as 24V DC or 48V DC plant battery systems.

• Output Voltage Rails: Delivers highly stabilized DC outputs, commonly configured to provide 5V DC for internal logic, 12V DC for communication circuitry, and 24V DC for external field loops.

• Efficiency Rating: Utilizes high-efficiency switching topologies that minimize internal thermal losses, often operating at 88 percent to 93 percent energy efficiency.

• Hold-Up Time: Features internal energy buffering that guarantees a minimum hold-up time of 20 milliseconds during a voltage sag, preventing immediate system resets.

• Isolation Barrier: Heavy-duty galvanic isolation between the primary input and secondary output circuits, typically rated to withstand 3000V AC or higher.

• Current Capacity: Varies by system frame size, engineered to deliver continuous currents from 5A up to 40A per voltage rail depending on the specific module sub-type.

Product Advantages

Metso Power Boards are recognized for their exceptional reliability in continuous-process industries:

• Redundant Configuration Support: Built to handle dual-diode auctioneering circuits, allowing two power boards to be wired in a hot-standby configuration where the failure of one board results in a seamless transition to the other.

• Comprehensive Surge Protection: Equipped with metal oxide varistors and transient voltage suppressors that protect the entire downstream I/O rack from external grid-side voltage spikes.

• Heavy-Duty Thermal Dissipation: Built on high-thermal-conductivity substrates and equipped with specialized heatsinks, ensuring reliable long-term operation without requiring forced-air cooling fans that are prone to mechanical failure.

• Continuous Diagnostic Monitoring: Integrated with hardware-level feedback loops that report status, overvoltage alerts, and degradation metrics back to the main DCS diagnostic console.

• Conformal Coating: Features standard G3-level chemical-resistant coatings to prevent circuit degradation caused by moisture, salt air, and corrosive gases like hydrogen sulfide.

Product Applications

These power boards are widely implemented across heavy processing and manufacturing environments:

• Pulp and Paper Processing: Supplying continuous power to the critical control racks regulating headboxes, bleaching lines, and massive paper machine dryers.

• Power and Co-generation Plants: Functioning as the primary energy source for controllers governing boiler systems, steam turbines, and emission control scrubbers.

• Mining and Minerals Automation: Powering the central instrumentation cabinets found near crushing mills, flotation cells, and bulk material handling systems.

• Chemical and Petrochemical Refining: Ensuring uninterrupted control logic for distillation columns, batch reactors, and safety interlock systems.

• Waste-to-Energy Facilities: Providing stable power to the automation hardware overseeing incenerator temperatures, flue gas treatments, and turbine generators.

Important Precautions

To maintain safe operation and prevent damage to the electronics, the following parameters must be strictly followed:

• Residual Capacitive Charge: The high-capacity capacitors on this board can retain lethal voltages for several minutes after the main input breaker is turned off. Always verify zero voltage with a calibrated meter before servicing the board.

• Proper Rail Grounding: The power board must be grounded firmly to the master cabinet enclosure. A weak ground connection can introduce electrical noise into the analog I/O loops, causing erratic process readings.

• Avoid Overloading: While the board features short-circuit protection, operating the unit near its maximum current threshold for extended periods accelerates component aging and reduces system longevity.

• Vent Slot Orientation: When replacing the board within a chassis, verify that the airflow pathways are completely unobstructed. Blocking the convective cooling paths will lead to localized hotspots and thermal shutdown.

• Hot-Swap Restrictions: Unless the specific sub-model is explicitly designated as hot-swappable in the technical manual, always disconnect the primary feeding breaker before extracting or inserting the power board to prevent contact arcing.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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JUSTWELL PTE. LTD

Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.