ABB 3HAC026114-005 Replacement Motor IRB 6640/6620

Product Overview

ABB 3HAC026114-005 Replacement Motor IRB 6640/6620: Seamless Transition & Legacy System Compatibility

The ABB 3HAC026114-005 is the OEM-specified axis drive motor with integrated pinion gear, designed for Axis 1 and Axis 2 drive trains on the IRB 6640 and IRB 6620 six-axis industrial robot series. As ABB progressively phases out legacy spare part batches and extends lead times on original procurement channels, facilities running aging IRB 6640-185/2.8, IRB 6640-130/3.2, and IRB 6620-150/2.2 cells face increasing pressure to source verified replacement units that preserve mechanical and electrical compatibility without requiring controller reprogramming or structural modification to the robot base.

This listing supplies a fully tested, ready-to-ship 3HAC026114-005 replacement motor — sourced from authorized industrial surplus channels and subject to pre-shipment functional verification — enabling maintenance teams to execute a planned or emergency swap with minimal downtime exposure.

Compatibility Comparison Table

*Re-mastering (calibration) is standard procedure after any axis motor replacement on ABB robots and is not specific to this unit.

Seamless Upgrade Solutions

A successful 3HAC026114-005 motor replacement is rarely a single-component event. In practice, maintenance engineers planning an IRB 6640 or IRB 6620 axis motor swap will encounter a cluster of interdependent components that should be inspected or replaced concurrently to avoid repeat downtime within the same maintenance window.

The SMB (Serial Measurement Board) — typically the 3HAC025562-001 or its successor revision — interfaces directly with the resolver feedback signal from this motor. If the SMB shows resolver error codes (event log 50071 or 50072) prior to the motor failure, replacing the motor alone may not clear the fault; the SMB board should be bench-tested or replaced in parallel. Similarly, the DSQC 661 or DSQC 663 axis computer module within the IRC5 controller cabinet should be verified for drive channel integrity, as a degraded drive output can accelerate motor winding stress over time.

On the mechanical side, the 3HAC026116-001 gearbox unit (Axis 1 gearbox for IRB 6640) is the mating component for the pinion on the 3HAC026114-005. If the motor failure was accompanied by abnormal noise, vibration, or backlash, the gearbox input bearing and gear mesh should be inspected before the new motor is installed. Skipping this step risks premature failure of the replacement unit. The 3HAC14550-1 grease kit is the ABB-specified lubricant for this gearbox interface and should be applied during reassembly per the IRB 6640 product manual section on axis 1 maintenance.

For facilities migrating from older S4C+ controller infrastructure to the IRC5 platform as part of a broader modernization program, the motor replacement often coincides with a controller cabinet upgrade. In this scenario, the DSQC 1000 main computer and the updated 3HAC036060-001 drive unit are the primary IRC5 components that interact with the axis motor feedback and power circuits. Ensuring the new drive unit firmware is compatible with the resolver signal characteristics of the 3HAC026114-005 is a prerequisite before commissioning.

Facilities that operate multiple IRB 6640 cells on a shared DeviceNet or PROFIBUS network backbone should also verify that the DSQC 378B (DeviceNet) or DSQC 352A (PROFIBUS) fieldbus adapter boards in the IRC5 cabinet are functioning correctly, as communication faults on these boards can mask axis motor errors and complicate post-replacement diagnostics. If the robot is integrated into a broader PLC-controlled production line — for example, a Siemens S7-300 or Allen-Bradley ControlLogix safety PLC managing cell interlocks — the PLC program’s axis-fault handling routines should be reviewed to ensure the motor replacement does not trigger unintended safety stops during the re-commissioning run.

Finally, for sites that maintain a cold-spare inventory strategy, stocking a secondary 3HAC026114-005 unit alongside a spare 3HAC025562-001 SMB board and a set of 3HAC026116-001 gearbox seals represents the minimum recommended spare parts kit for uninterrupted IRB 6640 / IRB 6620 operation over a 24-month horizon.

Retrofit Guidance FAQ

Q: Does replacing the 3HAC026114-005 require changes to the IRC5 controller configuration or RAPID program?
A: No. The 3HAC026114-005 is a direct mechanical and electrical replacement. The IRC5 controller stores axis calibration data (revolution counter values) in the SMB board, not in the motor itself. After installation, you will need to update the revolution counters via RobotStudio or the FlexPendant — this is a standard 10-minute calibration procedure, not a reprogramming task.

Q: Is the 3HAC026114-005 compatible with the older S4C+ controller?
A: Yes. The resolver-based feedback architecture is shared between the S4C+ and IRC5 drive systems for the IRB 6640 and IRB 6620 platforms. The motor connector pinout and resolver signal levels are identical across both controller generations.

Q: Can this motor replace the earlier revision 3HAC026114-004?
A: Yes. The -005 revision supersedes the -004 and is backward compatible in all mounting, wiring, and feedback respects. No mechanical adaptation or wiring modification is required.

Q: What is the physical installation space requirement?
A: The 3HAC026114-005 occupies the same envelope as the OEM unit. No modification to the robot base casting, cable management tray, or axis 1 cover panel is required. Standard ABB torque specifications for the motor mounting bolts apply.

Q: How do I verify the replacement motor is functioning correctly before full production restart?
A: After installation and revolution counter update, run the ABB fine calibration routine and execute a slow-speed (10% override) test cycle covering the full axis 1 and axis 2 working range. Monitor the IRC5 event log for resolver error codes (50071, 50072) and axis load deviation warnings (50204) during the test cycle before returning to production speed.

Q: What communication protocol does this motor use?
A: The 3HAC026114-005 uses analog resolver feedback — not a digital fieldbus protocol. The resolver signal is processed by the SMB board and transmitted to the DSQC drive unit via the internal IRC5 backplane. No fieldbus configuration changes are required in the PLC or robot controller after replacement.

Warranty Assurance

Every 3HAC026114-005 unit shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Pre-shipment testing includes resolver signal integrity verification, motor winding resistance check, and pinion gear mesh inspection. Units that fail any test parameter are quarantined and not dispatched.

In the event of a warranty claim, TOPNLMS provides a replacement unit dispatch within 3 business days of fault confirmation, with no requirement to return the defective unit before the replacement is shipped for verified long-term customers. For new accounts, a parallel RMA process is available. Our technical support team is reachable at [email protected] or +86 18359293191 for pre-purchase compatibility verification, post-installation diagnostics support, and warranty claim initiation.

Stock is maintained in Xiamen, China, with DHL Express, FedEx International Priority, and sea freight consolidation options available depending on urgency and destination. Typical DHL transit time to EU, North America, and Southeast Asia is 3–5 business days from dispatch.

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