ACN CS D201925 METSO

ACN CS D201925 METSO Basis unit 

Product  Description：

Metso Base Units, primarily utilized within the Metso DNA (formerly Valmet DNA) distributed control system and machine monitoring platforms, serve as the essential structural and electrical foundation for industrial automation hardware. These units provide the physical rack framework and the integrated backplane bus required to securely mount, power, and connect central processing units, communication modules, and input/output interfaces. They ensure reliable data throughput and structural stability for automated control loops in heavy process industries.

Product Parameters

The technical parameters of a Metso Base Unit define its physical capacity, electrical characteristics, and environmental thresholds:

• Slot Configuration: Available in modular layouts, typically offering variations from 2-slot extension blocks up to full 10-slot or 16-slot main chassis assemblies.

• Backplane Bus Voltage: Distributes internal system power, typically converting main cabinet feeds down to stabilized 5V DC and 24V DC lines for individual module logic.

• Data Bus Throughput: Equipped with a high-speed parallel or serial backplane bus designed for deterministic, millisecond-level I/O refreshing.

• Mounting Standards: Standardized for horizontal or vertical DIN rail mounting, as well as direct integration into standard 19-inch industrial enclosures.

• Isolation Rating: Features galvanic isolation between the backplane communication lines and the chassis frame ground, usually rated up to 500V DC or higher.

• Environmental Resilience: Rated for continuous operation in ambient temperatures ranging from -10°C to 60°C and non-condensing relative humidity up to 95 percent.

Product Advantages

Metso Base Units offer several engineering and operational benefits that support continuous plant availability:

• High Availability Layouts: Designed to natively support redundant power supplies and redundant CPU modules on the same backplane, eliminating single points of hardware failure.

• Active Hot-Swapping: The backplane architecture allows technicians to remove or replace faulty I/O modules while the system remains completely powered and operational without interrupting adjacent processes.

• Robust Noise Mitigation: Integrated multi-layer electromagnetic shielding protects internal data buses from high-frequency interference caused by nearby high-power machinery or variable frequency drives.

• Scalable Expansion: The base units can be daisy-chained or connected via fiber optic extension modules, allowing the physical control system to expand smoothly as the factory grows.

• Secure Mechanical Locking: Features heavy-duty module retention clips and guide rails that prevent loose connections or contact wear caused by ambient industrial vibrations.

Product Applications

These base units are deployed across complex, high-reliability process environments worldwide:

• Pulp and Paper Processing: Serving as the main platform for paper machine control, headbox adjustments, and continuous bleaching process loops.

• Mining and Minerals: Hosting the control hardware for large-scale crushing plants, grinding mills, flotation cells, and slurry transport systems.

• Power and Cogeneration: Organizing the distributed control processors and communication links for biomass, waste-to-energy, and traditional thermal power plants.

• Chemical and Refining: Supporting the essential I/O and safety interlocking logic required for distillation, mixing, and chemical storage systems.

• Marine Automation: Utilized in onboard machinery control systems, managing cargo handling, propulsion tracking, and power distribution on large vessels.

Important Precautions

To preserve the longevity of the base unit and ensure safe operation, the following guidelines must be followed:

• Grounding Requirements: The chassis must be connected to a clean, low-impedance industrial earth ground terminal to prevent the accumulation of static charges and common-mode noise.

• Slot Preservation: Unused slots on the backplane must be protected using official blank module covers to shield the exposed gold-plated pins from airborne dust, moisture, and conductive particles.

• Power Sequencing Validation: Before introducing main power to the base unit, double-check all terminal blocks for correct polarity and voltage matching, as an overvoltage can permanently damage the backplane circuits.

• Cable Strain Relief: Ensure that all field wiring connected to the modules is securely fastened to external cable management trays, preventing the weight of the cables from bending or straining the base unit connectors.

• Firmware and Compatibility: Verify that the physical model revision of the base unit aligns with the technical requirements of the specific processor or I/O module being inserted to avoid mechanical mismatches or communication failures.

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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