ABB 3HAC047118-004 Replacement Solution for IRB6700

Product Overview

ABB 3HAC047118-004 Replacement Solution for IRB6700: Seamless Transition & Legacy System Compatibility

When your ABB IRB6700 robotic system reaches end-of-life or a critical axis drive fails, unplanned downtime can cost thousands per hour on the production floor. The ABB 3HAC047118-004 servo motor is the factory-specified axis drive unit for the IRB6700 series industrial robot, covering payload configurations from 150 kg to 300 kg. This replacement and upgrade solution is engineered to restore full motion control performance with zero compromise on wiring compatibility, communication protocol integrity, or mechanical fit — enabling your maintenance team to execute a smooth, low-risk retrofit without reprogramming the entire robot controller.

Whether you are migrating from a worn-out original unit, replacing a fire-damaged or impact-failed axis motor, or proactively stocking a critical spare to protect production continuity, the 3HAC047118-004 is a direct drop-in replacement that interfaces natively with the ABB IRC5 controller and its associated DSQC series drive modules. The motor’s resolver feedback interface, power connector pinout, and mechanical flange dimensions are fully preserved, meaning your existing cable harness — including the 3HAC031683-001 motor cable and the 3HAC026253-001 signal cable — can be reused without modification.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful IRB6700 axis motor replacement rarely involves a single component in isolation. During the retrofit process, maintenance engineers typically inspect and often replace several interdependent elements to ensure the entire motion control chain is restored to specification. When installing the 3HAC047118-004, it is common practice to simultaneously evaluate the condition of the ABB DSQC668 drive unit, which governs axis current regulation and communicates directly with the IRC5 controller’s motion computer. If the DSQC668 shows signs of thermal stress or capacitor aging, replacing it alongside the servo motor eliminates a secondary failure point and avoids a repeat shutdown.

The ABB 3HAC025338-001 brake resistor unit and the associated 3HAC026254-001 power supply module within the IRC5 cabinet should also be inspected during the same maintenance window, as these components share the same power bus and are subject to equivalent thermal cycling. For facilities running multiple IRB6700 cells, it is advisable to stock the 3HAC047118-004 alongside the ABB DSQC609 I/O module and the DSQC652 digital I/O board, which handle end-effector signals and safety interlocks — components that are frequently disturbed during axis motor changeouts and may require re-seating or replacement.

If your facility is migrating from an older IRB6600 or IRB6640 platform to the IRB6700 architecture, the transition also involves updating the ABB FlexPendant (IRC5 teach pendant) firmware and verifying compatibility with your existing PROFINET or DeviceNet communication adapter installed in the IRC5 cabinet. The 3HAC047118-004 is fully compatible with both PROFINET and EtherNet/IP topologies when used within the standard IRC5 control architecture, requiring no changes to your PLC-side configuration on Siemens S7-300/S7-400 or Allen-Bradley ControlLogix systems that supervise the robot cell.

For facilities that rely on ABB RobotWare 6.x and use the 3HAC031683-001 motor cable assembly, the replacement procedure is straightforward: disconnect the existing cable at both the motor flange and the drive cabinet, swap the motor unit, reconnect using the original cable, and perform a fine calibration routine via the FlexPendant. No new RobotWare license is required, and the axis calibration data stored in the SMB (Serial Measurement Board) — typically the 3HAC031670-001 — is preserved, significantly reducing commissioning time.

Retrofit Guidance FAQ

Q: Can I reuse my existing motor cables when installing the 3HAC047118-004?
A: Yes. The power connector pinout and signal connector layout are identical to the original IRB6700 axis motor specification. Your existing 3HAC031683-001 motor cable and 3HAC026253-001 resolver cable can be reconnected without modification, provided they pass a continuity and insulation resistance test prior to reinstallation.

Q: Do I need to update RobotWare or the IRC5 firmware after replacement?
A: No firmware update is required for a like-for-like replacement of the 3HAC047118-004. The IRC5 controller will recognize the motor through the existing DSQC drive configuration. If you are simultaneously upgrading from an older axis motor variant (e.g., a 3HAC055451-004 from an earlier production batch), verify the RobotWare version supports the current motor parameters — this is typically confirmed in the ABB service bulletin for your robot serial number range.

Q: Is the physical installation space identical to the original motor?
A: Yes. The 3HAC047118-004 shares the same outer envelope dimensions and mounting flange pattern as the original IRB6700 axis motor. No structural modification to the robot arm housing or cable management brackets is required.

Q: What communication protocols are supported?
A: The motor operates within the ABB proprietary servo bus managed by the IRC5 controller. At the cell level, the IRC5 supports PROFINET, EtherNet/IP, DeviceNet, and PROFIBUS-DP via optional communication adapters. The motor replacement does not affect any of these upper-level protocol configurations.

Q: How long does axis fine calibration take after motor replacement?
A: With the SMB data intact and the original calibration pin positions marked prior to disassembly, fine calibration via the FlexPendant typically takes 30–90 minutes per axis depending on technician experience. If the SMB unit (3HAC031670-001) was also replaced, a full absolute accuracy calibration may be required.

Q: Can this motor be used as a cross-replacement for the 3HAC055451-004?
A: The 3HAC047118-004 and 3HAC055451-004 are related axis motor variants within the IRB6700 platform. Confirm the specific axis number and payload variant against your robot’s serial number plate and the ABB spare parts catalog before ordering to ensure the correct torque and gear ratio specification.

Warranty Assurance

Every ABB 3HAC047118-004 servo motor shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Prior to dispatch, each unit undergoes a pre-shipment functional inspection covering insulation resistance, resolver signal integrity, brake engagement force, and connector seating. Units that do not meet specification are quarantined and not shipped.

In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period. Our technical support team is available to assist with installation guidance, compatibility verification, and commissioning questions. We maintain stock of the 3HAC047118-004 and related IRB6700 spare parts to support rapid dispatch — typically within 1–3 business days for in-stock items, with express freight options available for urgent production-critical situations.

All units are shipped with appropriate ESD-protective packaging, and export documentation including commercial invoice, packing list, and certificate of origin is provided for international shipments. We support customers across mainland China, Southeast Asia, Europe, and the Middle East with established freight routes and customs clearance experience for industrial automation components.

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