ABB Robot Parts 3HAC026271-001 & 3HAC027648-00102 Drive Unit

3HAC026271-001 is an ABB robot AC servo motor designed for IRB series industrial manipulators, integrated with built-in resolver position feedback and holding brake for precise joint positioning. It matches the IRC5 drive unit 3HAC027648-00102 to realize closed-loop speed and torque control for robot axes. The motor adopts dustproof and oil-resistant mechanical structure, adapting to welding, handling and painting harsh workshop environments, while the drive unit converts DC bus power into multi-phase variable frequency power to drive the servo motor accurately.

Both components are standard spare parts for ABB IRC5 robot control systems and remain widely stocked in aftermarket maintenance inventories. The servo motor supports high dynamic acceleration and low backlash transmission, and the drive module features overcurrent, overvoltage and overheat multi-protection circuits. They can be replaced independently without full robot system reconfiguration, with front LED indicators quickly displaying axis drive faults for on-site maintenance troubleshooting.

Main Specifications

• Brand: ABB Robotics; Motor PN: 3HAC026271-001; Drive PN: 3HAC027648-00102; Control System: IRC5 Robot Controller
• 3HAC026271-001 Servo Motor: AC synchronous motor, built-in resolver encoder + electromagnetic holding brake, IP65 mechanical protection
• 3HAC027648-00102 Drive Unit: Single-axis servo drive, DC bus input, PWM variable frequency output, matched dedicated motor feedback interface
• Electrical Parameters: Drive input DC 565V bus power; Motor rated three-phase AC voltage, high torque density for robot joint motion
• Protection Functions: Overload, overvoltage, undervoltage, overheat, short-circuit and resolver signal loss fault detection
• Working Environment: Operating 0℃ ~ +45℃, storage -20℃ ~ +70℃, 5%–95% RH non-condensing, anti-welding spatter coating
• Diagnostic Design: Drive panel multi-color LED status lights for power, run and axis fault alarm signals
• Compatibility: Fits mainstream IRB 1600, IRB 2600 robot models; standard IRC5 cabinet backplane installation
• Certifications: CE, UL industrial automation certification, compliant with ISO robot safety standards

Core Functions

• 3HAC026271-001 servo motor provides high-precision rotational power for robot joints, the built-in brake locks the joint position when power cuts off to prevent workpiece dropping.
• 3HAC027648-00102 single-axis drive receives motion commands from IRC5 main computer, outputs adjustable frequency three-phase power to realize closed-loop position and speed control of the servo motor.
• Resolver feedback signal transmits real-time motor rotation angle back to the drive unit, eliminating positioning deviation during continuous high-speed robot cycle operation.
• Multi-layer hardware protection circuit automatically cuts off power output when abnormal electrical or thermal conditions occur, avoiding permanent damage to motor and drive hardware.
• Modular split design allows separate replacement of faulty motor or drive without replacing the whole robot axis set, greatly reducing maintenance cost and downtime.
• Standard robot bus communication protocol supports automatic parameter identification after replacement; only simple axis calibration is required to resume normal production operation.

Application Scenarios

• Robot axis motor and drive spare replacement for ABB IRC5 controller cabinets in automotive welding, assembly and stamping production workshops.
• Motion control spare parts for automated handling, palletizing, glue dispensing and spraying robot production lines of electronics and household appliance factories.
• Maintenance backup inventory for metal processing, food packaging and logistics automated robotic workstation equipment.
• Matching servo motion combination paired with IRB 1600/2600 manipulator mechanical arms and IRC5 main control unit.
• Retrofit replacement components for aging robot systems suffering motor brake failure, axis positioning drift and drive overheat shutdown faults.

• Global aftermarket spare stock for automation maintenance teams managing ABB six-axis industrial robot production lines worldwide.