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The ABB DSHM302 57350001-DS is an industrial-grade I/O extension and terminal module engineered for scalable connectivity, signal conditioning, and organized wiring management in ABB S800 I/O automation systems—specifically optimized for applications where expanded I/O capacity, noise immunity, and easy maintenance are critical (e.g., large process plants, manufacturing lines, remote infrastructure). It functions as a "centralized I/O hub," extending the number of field device connections, conditioning analog/digital signals to ensure integrity, and enabling hot-swappable I/O module integration—all while withstanding harsh industrial conditions (vibration, EMI, temperature fluctuations). Designed for seamless compatibility with S800 controllers and I/O modules, it enhances system flexibility without compromising performance or safety. Below is its detailed specification:
- Product Model: DSHM302 57350001-DS
- Product Series: ABB S800 I/O Scalable I/O Extension Modules (Terminal & Signal Conditioning)
- Core Function: Expands S800 I/O connectivity for field devices; conditions analog/digital signals (filtering, isolation); provides hot-swappable I/O module support; detects wiring faults (open/short circuits); facilitates color-coded, front-accessible wiring
- Terminal & Signal Specifications:
- Integration & Mechanical Specifications:
- Environmental & Compliance Ratings:
- Operating Temperature Range: -30℃~+70℃ (-22℉~158℉) (extended cold operation)
- Storage Temperature Range: -40℃~+85℃ (-40℉~185℉)
- Humidity Tolerance: 5%~95% RH (non-condensing, 40℃)
- Vibration Resistance: 10~500Hz, 2g acceleration (IEC 60068-2-6)
- Shock Resistance: 30g (11ms half-sine, IEC 60068-2-27)
- Compliance Standards: CE, RoHS, IEC 61131-2, UL 508, CSA C22.2 No.14, EN 61326-3-1 (EMC)
- 48-Channel Scalable I/O Expansion: Splits into 2 groups of 24 terminals for flexible zoning (e.g., 24 terminals for process sensors, 24 for actuators)—supports up to 48 field devices, eliminating the need for multiple extension modules and reducing rack space by 40%.
- Multi-Stage Signal Conditioning: Combines fixed and configurable filters for analog/digital signals—suppresses noise from industrial equipment (e.g., welding machines, VFDs) and prevents false triggers from mechanical switches, ensuring accurate data transmission to S800 controllers.
- Redundant Backplane Support: Compatible with DSBB107/DSBB175 redundant backplanes—ensures continuous I/O connectivity even if one backplane fails, critical for safety instrumented systems (SIS) or 24/7 production lines.
- Hot-Swap I/O Module Integration: Enables safe removal/installation of connected S800 I/O modules during operation—technicians can replace faulty modules without shutting down the process, minimizing maintenance-related downtime (e.g., in chemical batch processing).
- Per-Channel Fault Diagnostics: Color-coded LEDs (red/amber) for open circuits, short circuits, and reverse polarity—identifies wiring errors (e.g., a reversed sensor power cable) before system startup, avoiding costly I/O module damage or process upsets.
- EMI-Shielded Aluminum Housing: Blocks high-frequency interference from industrial sources—ensures stable signal conditioning in electrically dense environments (e.g., steel mills, automotive plants) where EMI could corrupt sensor data.
- Large Wire Gauge Support: Accepts 0.5~6mm² wires—accommodates both small-gauge sensor cables (0.5mm²) and larger-gauge actuator/power cables (6mm²), eliminating the need for terminal adapters and simplifying wiring.
- Extended Cold-Temperature Operation (-30℃~+70℃): Functions reliably in sub-zero environments (e.g., arctic oil pipelines, cold-storage facilities) without additional heating—expands deployment flexibility beyond standard industrial modules.
- Process Plants & Refineries: Centralized I/O for large-scale processes:
- Chemical Plants: Zones 24 terminals for reactor temperature/pressure sensors (analog) and 24 for valve actuators (digital)—signal isolation prevents ground loops between different process units, while surge protection withstands lightning transients in outdoor sensor cabinets.
- Oil Refineries: Connects 48 field devices (e.g., flow transmitters, level switches) to S800 I/O modules—redundant backplane support ensures no I/O loss during backplane maintenance, avoiding costly refinery shutdowns.
- Manufacturing Automation: Expanded I/O for production lines:
- Automotive Assembly: Uses 24 terminals for robotic proximity sensors (digital) and 24 for conveyor motor starters (power)—digital debounce filters prevent false triggers from vibration, while hot-swapping allows I/O module replacement during shifts.
- Electronics Production: Conditions 24 analog signals from PCB test equipment (4~20mA) and 24 digital signals from tool changers—configurable filters suppress noise from soldering irons, ensuring accurate test results.
- Remote Infrastructure & Utilities: I/O extension for distant sites:
- Water Treatment Plants: Extends I/O to 48 remote sensors/actuators (e.g., pump pressure, chemical dosing valves)—extended cold-temperature operation (-30℃) supports outdoor installation in northern climates, while fault LEDs simplify on-site troubleshooting.
- Wind Farms: Connects 24 analog signals from turbine vibration sensors and 24 digital signals from brake actuators—EMI shielding resists interference from wind turbine electronics, ensuring reliable data transmission to central SCADA.
- Hazardous & Heavy Industry: Durable I/O connectivity:
- Mining Operations: Uses 48 terminals for underground sensor networks (e.g., gas detectors, conveyor status)—aluminum housing resists vibration from mining equipment, while surge protection withstands power fluctuations in remote mines.
- Steel Mills: Conditions analog signals from temperature sensors (0~10V) and digital signals from rolling mill actuators—multi-stage filtering eliminates noise from high-voltage steel-processing equipment, preventing process errors.
- System Compatibility (Critical): Use only with ABB S800 I/O modules (digital, analog, safety) and DSBB107/DSBB175 redundant backplanes—non-S800 modules may not support hot-swapping or signal isolation, leading to performance issues or safety risks; verify via ABB’s DSHM302 compatibility list.
- Installation & Wiring Safety:
- Terminal Torque: Tighten screw terminals to 1.2Nm (for 0.5~6mm² wire)—loose connections cause overheating (terminal temperature >80℃) or intermittent signal loss; use torque screwdrivers to ensure consistency, especially for larger 6mm² power cables.
- Grounding: Connect the module’s PE terminal to a dedicated control ground (resistance ≤1Ω) using 4mm² copper cable—shared grounding with power systems compromises signal isolation, leading to noise-induced errors in analog signals.
- Filter Configuration: Set analog/digital filters based on device type (e.g., 20ms for slow analog pressure sensors, 0.1ms for fast digital photoeyes)—oversized filters delay signal response (e.g., missed emergency stop triggers); undersized filters fail to suppress noise.
- Operation & Maintenance:
- Hot-Swap Safety: Before replacing an I/O module, ensure the module’s outputs are deactivated (safe state)—hot-swapping active modules may cause momentary output fluctuations, disrupting processes (e.g., sudden valve movement in chemical dosing).
The structure and details of the product：
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