ABB SDCS-IOB-23C Digital I/O Module

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Product Description

The ABB SDCS-IOB-23C is a digital input/output expansion module designed for ABB DC drive systems (DSA/DC Drives). It enables precise signal exchange between the drive system and external equipment, ensuring safe, stable, and efficient automation control.

Technical Specifications

Digital Inputs (DI)

• Number of inputs: 16

• Input type: 24 VDC (typical)

• Input current: 8–12 mA (typical)

• Isolation: Optically isolated channels

• Response time: < 5 ms

Digital Outputs (DO)

• Number of outputs: 8

• Output type: Transistor or relay (depending on version)

• Output voltage: 24 VDC

• Max output current: 0.5 A (transistor) / 2 A (relay)

Interface & Communication

• Connection: Backplane connection to the main control board

• Module type: I/O expansion module

• Indicators: LED status indication for each channel

Environmental & Electrical

• Operating temperature: 0–55°C

• Storage temperature: –25–70°C

• Humidity: 5–95%, non-condensing

• Mounting: DIN-rail or backplane mounting

• EMC protection: Industrial-grade insulation and interference resistance

Advantages & Features

• High-reliability industrial design

• Fast I/O response for real-time control

• Strong EMC resistance for harsh environments

• Full compatibility with ABB DCS600 / DCS800 DC drives

• LED indicators for easy diagnostics

• Modular structure for convenient system expansion

Application Fields

• Steel and metallurgy DC drive systems

• Paper manufacturing machinery control

• Port cranes and lifting equipment

• Mining and heavy-duty industrial automation

• Digital signal monitoring and logic control for large equipment

Precautions

• Install the module inside a compliant industrial control cabinet.

• Avoid routing I/O wiring parallel to power lines.

• Verify correct power polarity and voltage levels.

• Do not plug/unplug the module while powered.

• Check wiring terminals regularly for looseness.

• Avoid long-term exposure to humidity, dust, or corrosive environments.

The structure and details of the product：

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