ABB DSQC355A digital I/O module

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Product Overview

The ABB DSQC355A Digital I/O Module is a key I/O component in ABB industrial robot control systems (such as the IRB series), responsible for managing digital input and output signals.
It features fast response, optical isolation protection, and modular design for reliable signal acquisition and control, widely applied in robot automation, production line control, welding, handling, and assembly applications.

Technical Specifications

Model: DSQC355A
Module Type: Digital I/O Module
Input Type: Digital signals (dry contact / 24 V DC)
Output Type: Digital signals (relay / transistor selectable)
Input Channels: 16
Output Channels: 16
Input Voltage: 24 V DC ±10%
Output Voltage: 24 V DC
Output Current: Max. 0.5 A per channel
Response Time: ≤1 ms
Input Isolation: Optically isolated
Operating Temperature: 0°C to +55°C
Storage Temperature: -25°C to +70°C
Humidity: 5%–95%, non-condensing
Power Consumption: approx. 4 W
Protection Rating: IP20
Mounting: DIN rail or robot control cabinet slot
Dimensions: approx. 130 × 80 × 35 mm
Weight: approx. 0.35 kg
Certifications: CE / UL / RoHS

Features & Advantages

1. High-Speed Digital Signal Acquisition and Output – ≤1 ms response time suitable for high-speed robot control.

2. Optical Isolation Protection – Enhances interference immunity and system reliability.

3. Multi-Channel Design – 16 input + 16 output channels for flexible configuration.

4. Modular Installation – Seamlessly integrates with ABB control cabinets and PLC systems for easy maintenance and upgrades.

5. Industrial-Grade Durability – Suitable for long-term operation in harsh industrial environments.

6. Low Power Consumption – Energy-efficient design suitable for continuous operation.

Applications

• Digital control for ABB IRB series industrial robots

• Digital signal acquisition and control in automated production lines

• Robot welding, handling, and assembly control

• Industrial automation process control and monitoring

• Motor drive and servo system interfaces

• Factory automation and energy management systems

Precautions

1. Disconnect power before installation or maintenance.

2. Follow polarity markings when wiring I/O terminals to prevent damage.

3. Use shielded cables to reduce electromagnetic interference and ensure signal stability.

4. Avoid operation in high humidity, dust, or strong EMI environments.

5. Regularly check terminal connections and module status indicators.

6. Use genuine ABB modules to ensure compatibility and long-term reliable operation.

The structure and details of the product：

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