Product Core Summary
- Model: HIER460279R1 UN0901DV1 UN0901D
- Manufacturer: ABB
- Core Function: Provides reliable electrical connections and signal interfacing between control modules and field devices in distributed automation systems, ensuring stable data transmission and power distribution.
- System Compatibility: Compatible with various ABB industrial control platforms, including DCS and PLC series requiring custom interface boards.
- Supply Status: Obsolete spare part, sourced from verified global inventory with availability for legacy system support.
- Warranty Standard: 12-month functional warranty, fully tested.
Key Technical Specifications
- Product Model: HIER460279R1 UN0901DV1 UN0901D
- Manufacturer: ABB
- System Platform: ABB Industrial Automation Interface Systems
- Connection Type: Multi-pin connectors for signal and power interfacing, supporting modular wiring.
- Voltage Rating: 24 V DC nominal, with tolerance for industrial power fluctuations.
- Current Capacity: Up to 10 A per circuit, depending on configuration for field device loads.
- Signal Types: Supports digital and analog signals with noise suppression features.
- Operating Temperature Range: -20 °C to +70 °C, designed for cabinet-mounted industrial environments.
- Isolation: Basic galvanic separation on critical paths to prevent ground loops.
- Dimensions: Compact PCB layout, approximately 200 mm x 150 mm x 30 mm.
- Weight: 0.6 kg.
- Certifications: CE marked, compliant with IEC 61131 for programmable controllers and EMC directives.
- Environmental Protection: Conformal coating for resistance to dust, humidity, and vibration.
- MTBF: Exceeding 300,000 hours in standard industrial conditions.
- Connector Durability: Rated for multiple insertion cycles in maintenance scenarios.
Technical Architecture & Functional Positioning
The HIER460279R1 UN0901DV1 functions as an intermediate connection board in ABB control architectures, typically positioned between processor modules and termination units to facilitate organized signal routing and fault isolation. This role is essential in complex systems where direct module-to-field wiring would compromise maintainability or introduce interference risks.
The board employs robust trace layouts and plated-through holes for high-current paths, combined with filtering components to attenuate electromagnetic noise from adjacent power circuits. Such design ensures signal integrity over extended cable runs, critical for accurate data acquisition in distributed setups. It also incorporates diagnostic LEDs or test points in certain variants, allowing quick verification of connection status without disrupting operations.
In engineering practice, this interface board addresses challenges like cable management in dense racks and rapid module swaps during outages, reducing wiring errors that could lead to spurious alarms or control loops instability. Its passive yet durable construction supports hot-swap compatibility in select systems, minimizing downtime, and enables straightforward retrofits when upgrading legacy controllers while retaining existing field cabling.
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