ABB KSD211B 3BHE022455R1101

2. Power Supply

• Rated Input Voltage: 24 V DC ±10%
• Power Consumption: Max. 5 W (under full load)
• Overvoltage Protection: 36 V DC (automatic recovery)

3. Environmental & Physical

• Operating Temperature Range: -25 °C to +70 °C
• Storage Temperature Range: -40 °C to +85 °C
• Relative Humidity: 5% to 95% (non-condensing)
• Protection Degree: IP20 (when installed in a standard control cabinet)
• Dimensions (W×H×D): 48 mm × 175 mm × 120 mm (standard DIN rail-mount size)

4. Communication

• Protocol Support: Modbus RTU (via RS485 interface)
• Communication Rate: 9600 bps, 19200 bps, 38400 bps (configurable)
• Data Bit/Parity/Stop Bit: 8N1, 8E1, 8O1 (configurable)

Functional Features

1. High-Precision Signal Conditioning

• Equipped with dedicated signal filtering circuits to suppress electromagnetic interference (EMI) and radio frequency interference (RFI), reducing signal noise by over 30% and ensuring input signal accuracy.
• Supports automatic zero-point and full-scale calibration, eliminating measurement errors caused by long-term operation or environmental changes.

2. Robust Protection Mechanisms

• Built-in overcurrent, overvoltage, and reverse polarity protection for power input, preventing module damage from power supply anomalies.
• Digital output channels feature short-circuit protection; the module automatically shuts down the faulty channel and sends an alarm signal without affecting other channels.

3. Flexible Configuration & Integration

• Supports on-site parameter configuration via a handheld programmer or upper-level software (e.g., ABB Control Builder), enabling quick adjustment of signal types, ranges, and communication parameters.
• Designed for DIN rail mounting, compatible with standard industrial control cabinets, and can be seamlessly integrated with ABB AC 800M DCS, ABB Freelance DCS, and third-party PLCs (e.g., Siemens S7 series).

4. Real-Time Monitoring & Diagnostics

• Provides self-diagnostic functions for module hardware (e.g., power supply, communication interface) and signal status; diagnostic results are transmitted to the upper system via Modbus RTU for remote monitoring.
• Features LED indicator lights for power, communication, and channel status, allowing on-site maintenance personnel to quickly identify faults.

Application Scenarios

1. Power Generation Industry

• Used in thermal power plants, hydropower plants, and wind farms to collect signals from pressure transmitters, temperature sensors, and flow meters in boiler, turbine, and generator systems, and transmit data to the DCS for real-time control and monitoring.

2. Oil & Gas Industry

• Applied in oil refineries, natural gas processing plants, and pipeline systems to process signals from level sensors (tank liquid level) and valve positioners, ensuring safe and stable operation of storage, transportation, and processing equipment.

3. Chemical & Petrochemical Industry

• Integrated into chemical reaction units and material handling systems to condition signals from pH sensors, concentration analyzers, and pump status switches, supporting precise control of reaction processes and preventing hazardous material leaks.

4. Metallurgy & Mining Industry

• Used in steel mills, aluminum smelters, and mining sites to connect temperature sensors (furnace temperature) and motor status detectors, transmitting data to the control system to regulate smelting temperatures and mining equipment speed.

5. Water & Wastewater Treatment

• Deployed in water treatment plants to collect signals from turbidity sensors, dissolved oxygen detectors, and pump operation status, enabling the control system to adjust treatment processes (e.g., filtration, disinfection) and ensure water quality meets standards.