Application Scenarios

In an automotive body shop, an ABB IRB 6700 robot welding a chassis frame suddenly stopped mid-cycle, triggering a “Controller Power Fault” alarm on the IRC5 teach pendant. The production line was at a standstill. The maintenance team traced the issue to the ABB 3HAC026253-001 power supply module, whose output voltage had dropped below the critical 24V threshold, causing the robot’s safety logic to engage. After swapping in a spare ABB 3HAC026253-001, the system rebooted, and the robot resumed its welding path within 15 minutes. The plant’s controls engineer noted: “We used to think power supplies were bulletproof, but we’ve learned that a failing DSQC661 can mimic a complex drive fault. Now we keep two on the shelf.”

This scenario highlights the ABB 3HAC026253-001‘s critical role in maintaining production continuity. In any IRC5-based robot application—spot welding, arc welding, material handling, painting, or palletizing—the module addresses the core pain point of unstable or failing power delivery, which can cause erratic motor behavior, logic resets, or complete system shutdowns . Its hot-swap capability minimizes downtime, as technicians can replace the module without extensive reconfiguration, restoring production capacity swiftly.

 

Parameters

Note: The specifications below are compiled from multiple supplier sources, as ABB’s official datasheet is not publicly linked. Please verify with ABB documentation for absolute accuracy.

Main Parameters	Value/Description
Product Model	ABB 3HAC026253-001 (DSQC661)
Manufacturer	ABB Robotics
Product Category	Power Supply Module
System Compatibility	ABB IRC5 Robot Controller
Input Voltage	85–264 V AC, 50/60 Hz
Output Voltage	24 V DC (regulated, ±0.5 V accuracy)
Efficiency	Up to 92%
Protection Features	Overload, short-circuit, overvoltage, thermal shutdown
Operating Temperature	-25°C to +70°C
Protection Rating	IP20 (cabinet installation only)
Dimensions (W×H×D)	178 × 104 × 235 mm
Weight	Approx. 2.46 kg

 

 

Technical Principles and Innovative Values

Innovation Point 1: Purpose-Built for IRC5 Architecture
Unlike generic DIN-rail power supplies, the ABB 3HAC026253-001 is engineered for the IRC5 controller’s specific power distribution requirements. It supplies the exact voltage rails needed for the main computer, drive amplifiers, and safety circuits—with tight regulation to prevent logic resets during high-inertia robot movements . This ensures that rapid acceleration and braking events don’t trigger undervoltage faults.

Innovation Point 2: Universal Input Flexibility
The ABB 3HAC026253-001 accepts a wide input range (85-264V AC), making it compatible with global industrial power grids without configuration changes . This simplifies logistics for multinational manufacturers, allowing a single spare part to serve plants across regions with different voltage standards.

Innovation Point 3: Integrated Active Protection Suite
The module features multiple protection mechanisms: overload protection shuts down the output if the current exceeds safe limits; short-circuit protection prevents damage from wiring faults; overvoltage suppression protects downstream electronics from voltage spikes; and thermal shutdown prevents overheating . Together, these features extend the lifespan of the controller’s sensitive I/O boards and drive modules, reducing the total cost of ownership.

Innovation Point 4: Low Ripple & Noise Output
For applications requiring precise motion control—such as arc welding or dispensing—the ABB 3HAC026253-001 delivers a clean 24V output with minimal ripple and noise . This ensures that analog signals from sensors and encoders remain accurate, preventing micro-stuttering or positional drift that could compromise product quality.