ABB DSQC105 3HAC064474-001 brake relay board

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ABB DSQC105 3HAC064474-001 Brake Relay Board

Introduction

The ABB DSQC105 3HAC064474-001 is a Brake Relay Board designed for ABB industrial robot controllers (e.g., S4, S4C, S4C+, IRC5). It controls the engagement and release of servo motor brakes, ensuring robot safety during motion and emergency stops.

Technical Specifications

• Model: DSQC105

• Part Number: 3HAC064474-001

• Type: Brake Relay Board

• Functions:

  • Switches brake power on/off for robot servo motors

  • Receives controller commands and triggers relays

  • Provides safe holding of robot joints during stop or power loss

• Main Components: Industrial relays, power connectors, status circuits

• Operating Voltage: Typically 24 VDC (control supply)

• Interface: Backplane or cable connection to robot controller

• Operating Conditions:

  • Temperature: 0–55℃

  • Humidity: 5–95% (non-condensing)

• Mounting: Modular installation inside control cabinet

Features & Benefits

• Safety – ensures brakes engage during stop or power-off.

• Reliability – long service life with robust relay design.

• Fast response – millisecond switching for synchronized braking.

• Easy maintenance – plug-and-play replacement.

• Compatibility – designed for ABB controllers, fully integrated.

Applications

• ABB industrial robots – servo motor brake control.

• Automated production lines – safety braking during assembly, welding, handling.

• Process industries – secure positioning during high-precision operations.

• Emergency stop systems – reliable brake engagement on power loss.

Installation & Maintenance Notes

1. Always power off before installation/maintenance.

2. Verify brake voltage matches the robot motor specifications.

3. Inspect relays regularly to prevent contact sticking or failure.

4. Troubleshoot module if robot fails to engage/release brakes.

5. Use genuine ABB spare parts for best performance.

The structure and details of the product：

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