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Description
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | SDCS-IOB-21 |
| Manufacturer Part Number | 3ADT220090R0014 |
| Manufacturer | ABB |
| Product Type | Digital Input/Output (I/O) Connection Board |
| Compatible Systems | SDCS System, DCS800 DC Drives |
| Digital Inputs | 16 channels (typically 24 V DC) |
| Digital Outputs | 16 channels (transistor or relay options) |
| Input Voltage Range | 20–30 V DC (standard); variants support 24–48V DC |
| Response Time | < 10 ms |
| Power Supply | 24 V DC (via system backplane or external) |
| Communication Interface | Proprietary SDCS digital interface (to controller) |
| Operating Temperature | –20°C to +70°C |
| Dimensions (H×W×D) | 233.5 × 97.5 × 18.5 mm |
| Weight | Approx. 0.37 kg |
Main Features and Advantages
High-Density I/O Interface: The board provides 16 digital inputs and 16 digital outputs in a compact form factor, enabling extensive connectivity for sensors, push buttons, contactors, and indicator lamps without requiring additional expansion units in the drive cabinet.Robust Signal Conditioning: All digital inputs are optically isolated and filtered, providing immunity against electrical noise and transients common in industrial settings like steel mills or mining sites. The board supports configurable input time constants (e.g., 2ms or 10ms) to filter out contact bounce and noise.Enhanced Diagnostics and Flexibility: Status LEDs for each I/O channel allow for quick visual troubleshooting. The board supports grouped galvanic isolation for inputs, allowing connection to different ground potentials if required. It is designed for easy rack mounting within DCS800 or SDCS drive chassis.
