ABB 3HAC057174-004 Migration-Ready Axis Motor for IRB 6700

Overview

ABB 3HAC057174-004 Migration-Ready Axis Motor for IRB 6700: Legacy System Retrofit and Compatible Upgrade

The ABB 3HAC057174-004 is a precision servo motor assembly engineered for the IRB 6700 robot series, serving as a direct migration-ready replacement for discontinued units including the 3HAC045146-009 and 3HAC048334-003. As ABB progressively phases out legacy motor variants across its IRB 6600 and IRB 6700 platforms, maintenance engineers and system integrators face increasing pressure to source verified drop-in replacements that preserve existing program logic, axis calibration data, and communication integrity with the IRC5 controller. The 3HAC057174-004 addresses this challenge directly — it is pre-tested, in-stock, and backed by a support terms confirmed by quotation covering both parts and workmanship.

For facilities running multi-robot cells with shared IRC5 cabinets, the axis motor replacement process must be coordinated carefully. The 3HAC057174-004 mounts to the same mechanical interface as its predecessors, preserving the existing cable harness routing and resolver connector pinout. Engineers should verify the motor serial measurement circuit (SMB) board compatibility within the IRC5 drive module before installation, as firmware revisions on the DSQC 661 or DSQC 662 drive units may require a parameter update via RobotStudio to correctly map the new motor’s resolver offset. Axis 1 through Axis 6 configurations on the IRB 6700/150/3.20 and IRB 6700/205/2.80 variants are supported, though the specific axis position must be confirmed against the robot’s mechanical unit configuration file prior to ordering.

When planning a retrofit around the 3HAC057174-004, the broader drive and control architecture must be assessed in parallel. The IRC5 controller’s axis computer board — typically a DSQC 668 — communicates with each motor’s resolver via the SMB unit, and any mismatch in firmware between the axis computer and the drive module can produce axis calibration faults (error code 50296 or 50297) during commissioning. It is strongly recommended to back up the current RAPID program, system parameters, and EIO configuration using RobotStudio before disconnecting the legacy motor. The 3HAC057174-004 ships with a pre-filled grease nipple and factory-set brake, reducing on-site preparation time and supporting tighter downtime windows.

Migration Compatibility Table

Retrofit Planning for Existing Automation Systems

A successful IRB 6700 axis motor retrofit requires more than a mechanical swap. The IRC5 controller cabinet houses several interdependent components that must be assessed before and after motor replacement. The DSQC 668 axis computer board manages resolver feedback for all six axes; if the board carries an older firmware revision, the new motor’s resolver offset may not be correctly interpreted, leading to joint position errors during the first power-on sequence. Updating the axis computer firmware via the FlexPendant or RobotStudio service port is a standard precaution before commissioning the 3HAC057174-004.

The SMB (Serial Measurement Board) unit — typically mounted inside the robot’s lower arm — stores battery-backed axis position data. During motor replacement, the SMB battery should be inspected and replaced if voltage is below specification, as a depleted SMB battery will cause the robot to lose its calibration reference and require a full fine calibration cycle. The 3HAC14550-3 SMB battery kit is a commonly sourced companion item during IRB 6700 motor retrofits.

For facilities integrating the IRB 6700 into a larger automation cell, the DeviceNet or PROFINET I/O modules connected to the IRC5’s DSQC 652 or DSQC 378B I/O boards should be verified for signal continuity after the motor swap, particularly if the robot’s base axis (Axis 1) is being replaced and cable routing is disturbed. The FlexPendant (DSQC 679) provides real-time axis status monitoring during the post-installation jog test, allowing engineers to confirm resolver feedback quality before returning the robot to automatic mode. Where the robot is part of a MultiMove configuration, the coordinated motion parameters stored in the IRC5’s system parameters must be re-validated after any axis motor change to ensure path accuracy across all coordinated robots.

In control cabinets where space is constrained, the 3HAC057174-004’s identical form factor to the legacy units eliminates the need for bracket modifications or cable extension harnesses, directly reducing retrofit labor hours. All units are shipped with factory-applied corrosion protection and individually packaged to prevent transit damage.

Downtime Control During System Migration

Minimizing unplanned downtime during an IRB 6700 axis motor replacement begins with pre-staging. Before the maintenance window opens, the replacement 3HAC057174-004 should be on-site and verified against the robot’s axis configuration. A full system backup — including RAPID modules, system parameters, I/O configuration, and SafeMove parameters if applicable — must be completed and stored on an external device. This backup protects the existing program logic and allows rapid restoration if commissioning issues arise.

During the motor swap, the IRC5 cabinet should remain powered down with the main switch locked out. The axis brake must be manually released using the brake release unit before the motor can be physically removed; failure to do so risks mechanical damage to the gearbox. Once the 3HAC057174-004 is installed and the resolver harness reconnected, the system should be powered up in manual reduced speed mode. The first jog test should be performed at 10% speed to confirm resolver feedback polarity and brake function before advancing to full-speed operation.

Fine calibration using the calibration pendulum or Levelmeter 2000 should be performed immediately after the jog test. Calibration data should be saved to the controller and backed up externally. For production environments where the robot is part of a synchronized line, the line PLC — often a Siemens S7-300 or Allen-Bradley ControlLogix — should be notified via the robot’s digital I/O handshake signals before the robot is returned to automatic mode, preventing false fault conditions on the line controller. Total planned downtime for a single-axis motor replacement on the IRB 6700, when pre-staged correctly, typically ranges from 4 to 8 hours including calibration and test cycles.

Retrofit Support FAQ

Q1: Is the 3HAC057174-004 a direct replacement for the 3HAC045146-009 and 3HAC048334-003?
Yes. The 3HAC057174-004 is mechanically and electrically compatible with both legacy part numbers on the IRB 6700 series. The mounting flange, resolver connector, and brake interface are identical. A firmware parameter update via RobotStudio may be required depending on the installed RobotWare version. All units are pre-tested before shipment.

Q2: What commissioning steps are required after installation?
After mechanical installation and resolver harness reconnection, power up the IRC5 in manual reduced speed mode. Perform a jog test at 10% speed to verify resolver feedback and brake function. Complete fine calibration using the calibration pendulum or Levelmeter 2000. Save and back up calibration data. Validate SafeMove configuration if applicable before returning to automatic mode.

Q3: Does the unit ship with a support terms and pre-shipment testing?
Yes. Every 3HAC057174-004 unit undergoes functional testing and brake verification before shipment. A support terms confirmed by quotation is included, covering parts and workmanship defects under normal operating conditions. Units are availability confirmed by RFQ and available for immediate dispatch.

Q4: What if my IRB 6700 uses an older IRC5 firmware version?
The 3HAC057174-004 is compatible with RobotWare 5.x and 6.x. For systems running RobotWare versions below 5.14, a firmware update is recommended to ensure full resolver parameter compatibility. Contact our technical team at admin@knmks.com for pre-installation compatibility verification specific to your robot’s system version and axis configuration.

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Product Identification

Brand / Ecosystem

ABB
ABB

Model / Series

IRB67003HAC057174-004 IRB67003HAC045146-009 IRB67003HAC048334-003
IRC5 Series

Product Family

Servo Systems

Availability Status

Available on request after model and quantity confirmation

Inquiry Type

B2B RFQ, replacement inquiry and project spare-part request

Pre-Quote Check

Exact SKU, brand, series, quantity, nameplate photos and destination country are checked before quotation

Specification & Inquiry Focus

Motion range

Servo drives, motors and cable sets

Common needs

Power, encoder and brake confirmation

Project support

Motion upgrade and spare-part supply

Inquiry Support

• Motor, drive and cable set coordination
• Power rating and encoder type checking
• Motion control replacement support

What to Send Us

• Brand and exact model number: ABB IRB67003HAC057174-004 IRB67003HAC045146-009 IRB67003HAC048334-003
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