Generate wrist torque
The AC motor converts drive current into rotation. Its pinion transfers that rotation to the wrist gearbox, where speed is reduced and torque is delivered to the selected axis.
ABB IRB 2600 robot
ABB 3HAC047574-002Type B Rotational AC Motor with Pinion
01
Product Introduction
ABB 3HAC047574-002 is a Type B rotational AC motor supplied with its pinion for the ABB IRB 2600 robot. It drives the wrist-axis gear path used by axes 4, 5 or 6 in the applicable manipulator execution, converting controller power into the geared rotation commanded for the selected axis.
Motor power, brake control and resolver feedback remain separate but coordinated paths on ABB 3HAC047574-002. The pinion carries motor torque into the axis gearbox, while the feedback circuit returns shaft position to IRC5 so the controller can compare commanded and measured wrist movement.
Because Type A and Type B motor executions are not interchangeable, ABB 3HAC047574-002 is selected from the robot serial record and installed axis position. Service work preserves connector labels, pinion engagement, cable routing and seals before calibration and a controlled wrist-motion test.
02
Technical Information
| Technical item | Specification |
|---|---|
| Brand | ABB |
| Model | 3HAC047574-002 |
| Product name | Rotational AC motor with pinion, Type B |
| Country | Sweden / Switzerland |
| Robot family | ABB IRB 2600 |
| Axis application | Wrist axes 4, 5 or 6 by robot execution |
| Mechanical output | Installed pinion to axis gearbox |
| Electrical paths | Motor power, brake and resolver feedback |
| Controller family | ABB IRC5 |
| Execution control | Type B; not interchangeable with Type A |
| Service checks | Connectors, seals, pinion seating and cable support |
| Commissioning | Calibration and controlled wrist-motion test |
03
Product Functions
ABB 3HAC047574-002 combines torque production, holding-brake action and shaft-position feedback in the wrist drive assigned by the robot configuration.
Hold a stopped axis
The brake holds the mechanical axis when drive torque is removed. Brake wiring and release timing therefore belong to the same service check as motor power, not to a separate mechanical adjustment.
Close the position loop
Resolver feedback reports motor-shaft position to IRC5. The controller uses that value with the robot model to regulate motion and identify a deviation between commanded and actual wrist movement.
04
Installation Highlights
Fit ABB 3HAC047574-002 by preserving the Type B drive geometry and every power, brake and feedback connection associated with the original axis.
Secure the wrist
Move the robot to the documented service position, isolate energy and mechanically support the affected wrist axis before disconnecting the motor or releasing its brake.
Transfer the drive record
Label motor, brake and resolver plugs, protect the gearbox opening, then install the Type B motor so the pinion seats without forcing the housing or trapping seals and cables.
Calibrate and test
Restore covers and cable supports, update calibration only when required, then release the brake and test low-speed motion while monitoring direction, noise, current and position feedback.
05
Frequently Asked Questions
How should a technician confirm that Type B is the correct execution for ABB 3HAC047574-002?
For ABB 3HAC047574-002, use the IRB 2600 serial record and installed-axis spare-parts list before ordering 3HAC047574-002.
What should be checked when a team needs to prevent the wrist from moving during removal for ABB 3HAC047574-002?
For ABB 3HAC047574-002, support the affected axis and isolate drive and brake energy before loosening 3HAC047574-002.
Why might a site need to avoid connector mix-ups for ABB 3HAC047574-002?
For ABB 3HAC047574-002, label motor power, brake and resolver plugs and return them to the same axis positions.
Which checks help a customer respond to abnormal noise after installation for ABB 3HAC047574-002?
For ABB 3HAC047574-002, stop the test and check pinion seating, motor alignment, covers and gearbox condition before changing calibration.
What is the safest way to verify the feedback path for ABB 3HAC047574-002?
For ABB 3HAC047574-002, compare slow commanded motion with displayed axis position and confirm resolver and brake behavior together.
How can commissioning staff finish commissioning safely for ABB 3HAC047574-002?
For ABB 3HAC047574-002, test 3HAC047574-002 at controlled speed with the work area clear before restoring automatic operation.
06
Shipping Services
Moore Automation
https://www.mvme.cn/Moore Automation can retain the complete motor identifier, robot serial context, axis position and shipment tracking record so the Type B execution remains visible through packing and delivery.
Protective packingMotor and pinion surfaces supported
Axis recordRobot and position remain linked
Tracking handoffShipment reference shared when available
07
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08
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