Description
Product Introduction
The ABB 3HAC026272-001, designated DSQC 647 SafeMove Unit, is a dedicated functional safety controller used in ABB IRC5 robot controllers. It continuously supervises robot position, speed, workspace, and safety zones while working alongside the standard robot controller. It is a core component of the SafeMove option for IRC5 robotic systems.
Unlike a standard control board, the DSQC 647 performs certified motion safety functions. It allows the robot to operate safely inside defined workspaces without relying solely on hard guarding. One thing to watch out for is installation hardware. ABB specifies that the unit is supplied without EMC strips, and additional hardware may be required depending on the controller configuration.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ABB Robotics |
| Product Number | 3HAC026272-001 |
| ABB Designation | DSQC 647 |
| Product Description | SafeMove Unit |
| Product Family | IRC5 Robot Controller |
| Primary Function | Robot Functional Safety Controller |
| Compatible Controller | ABB IRC5 Single Controller |
| Net Weight | 1.62 kg |
| Country of Origin | Germany |
| Installation | Internal IRC5 Controller Module |
| Additional Hardware | Requires two EMC strips (3HAC026945-001); brackets required when not used with Axis Computer 3HAC029157-001 |
| Application | SafeMove Motion Supervision for Industrial Robots |
Application Scenarios & The “Trench” Experience
Here’s a problem that catches even experienced robotics engineers.
The robot powers up normally. Drives enable. Programs load without errors. Then the safety system refuses to release automatic operation because SafeMove reports a configuration fault. Operators immediately suspect RobotWare or field wiring, but the actual issue is inside the safety hardware.
That situation usually brings the DSQC 647 into focus.
Typical Applications
Automotive Manufacturing — Spot welding cells — Monitors safe robot zones so operators can safely access adjacent work areas.
Machine Tending — CNC loading systems — Restricts robot motion while maintenance personnel work nearby.
Packaging Automation — High-speed palletizing cells — Supervises safe operating envelopes without relying entirely on physical barriers.
Material Handling — Multi-robot production lines — Prevents robot interference by enforcing safe motion limits.
General Manufacturing — Collaborative production layouts using industrial robots with SafeMove functionality.
Field Case Study
An automotive supplier upgraded RobotWare during a scheduled maintenance shutdown. After the update, every robot remained in a safety stop even though all emergency-stop circuits tested correctly.
The maintenance team discovered the SafeMove hardware had been damaged during previous cabinet work. After replacing the 3HAC026272-001, restoring the SafeMove configuration, recalibrating the safety system, and validating the protected workspaces, production resumed before the next manufacturing shift.

- 3HAC026272-001

- 3HAC026272-001
Transparency SOP: Quality Assurance & Testing
We don’t just ship boxes; we test them on actual ABB IRC5 controllers whenever configuration allows.
- Inbound Inspection
- Verify ABB product labels and serial identification.
- Inspect PCB condition, connectors, and shielding.
- Check for signs of overheating or unauthorized repair.
- Live Rig Testing
- Install the module in an controller.
- Verify controller startup.
- Confirm SafeMove recognition.
- Verify communication with RobotWare.
- Electrical Parameter Checks
- PCB continuity testing.
- Connector inspection.
- Power rail verification.
- Functional interface testing.
- Hardware Verification
- Record hardware revision.
- Verify DSQC 647 identification.
- Confirm SafeMove compatibility.
- Final QC & Anti-static Packaging
- Functional inspection.
- Anti-static packaging.
- Shock-resistant protective packing.
- Serial number traceability.
The Veteran’s Tech Trap Guide
⚠️ Never replace the hardware without backing up the SafeMove configuration.
The safety configuration is part of the machine validation. Losing it can extend commissioning from hours to days.
⚠️ Install the required EMC strips.
ABB delivers the DSQC 647 without the EMC strips. Skipping these parts can create installation problems and non-compliance with the intended hardware configuration.
❗ RobotWare and SafeMove must match.
In our field experience, mismatched RobotWare versions and SafeMove configurations often generate startup faults that appear to be hardware failures.
⚠️ Don’t bypass the safety system for troubleshooting.
It may help identify a fault temporarily, but bypassing certified safety functions during production is unsafe and may violate local machinery safety regulations.
Frequently Asked Questions (FAQ)
Q1. What is the ABB 3HAC026272-001?
It is the DSQC 647 SafeMove Unit, the dedicated motion safety controller used with ABB robot controllers equipped with the SafeMove option.
Q2. Which robot controllers use this module?
The DSQC 647 is designed for controllers using the SafeMove safety option. Supported robot families depend on the installed RobotWare and SafeMove version.
Q3. Can I simply replace the board and restart production?
Usually no.
The replacement should be followed by verification of the SafeMove configuration, safety validation, and functional testing before the robot returns to service.
Q4. Is this module hot-swappable?
No.
Power down the controller completely before removing or installing the DSQC 647.
Q5. Why does the controller still report a SafeMove fault after replacement?
Common causes include:
- Incorrect RobotWare version
- Missing SafeMove configuration
- Incorrect safety I/O wiring
- Encoder calibration issues
- Missing EMC strips or installation hardware
The replacement module is only one part of the complete safety system.
Q6. What warranty is normally offered?
Most professional industrial surplus suppliers provide a 12-month warranty for new surplus and professionally tested refurbished units.
Q7. What should be verified before ordering?
Confirm the following:
- ABB Part Number: 3HAC026272-001
- Module Designation: DSQC 647
- Controller Platform:
- RobotWare Version
- SafeMove Option Installed
- Hardware Revision
- Required EMC Strips (3HAC026945-001) and mounting brackets, if applicable
Finally, compare the controller’s spare parts list with the installed hardware before replacement. On an safety system, matching the correct SafeMove hardware is just as important as selecting the correct robot controller board.




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