ABB IRB6600 Series Modules IRB6600-3HAC17484-7/02 IRB6600-3HAC17484-7/03 IRB6640-3HAC17484-6/03 Rotary AC Motor

Technical Dossier

Product Details And Specifications

ABB IRB6600 Series Technical Notes

The Evolution of IRB6600 Architecture

The IRB6600 was introduced by ABB Robotics as a successor to the IRB6400 platform, transitioning from the S4C+ controller generation to the IRC5 controller architecture. This transition brought significant changes to the drive system: the S4C+ era used DSQC-series drive boards with proprietary serial communication, while the IRC5 platform standardized on the RAPID programming environment and modular drive unit (MDU) topology. The rotary AC motor assemblies in the 3HAC17484 family are IRC5-era components, designed for compatibility with the IRC5 single-cabinet and dual-cabinet controller configurations.

Key architectural milestones: the IRB6600 introduced a parallel upper-arm mechanism that reduced moving mass and improved dynamic performance compared to the IRB6400. Subsequent variants — IRB6620, IRB6640, IRB6650S, IRB6660 — share partial mechanical commonality with the IRB6600 but differ in reach, payload rating, and axis-motor specifications. Technicians sourcing replacement motors must verify the exact 3HAC part number and axis designation, as cross-variant substitution without engineering validation can result in torque mismatch and controller fault codes (e.g., 50071, 50072 joint supervision errors).

IRB6600 Full Catalog & Functionalities (SKU List)

Rotary AC Motor Assemblies (Axis Drive Units)

• 3HAC17484-7/02: Axis rotary AC motor assembly, IRB6600 variant, revision 02 — primary joint drive unit
• 3HAC17484-7/03: Axis rotary AC motor assembly, IRB6600 variant, revision 03 — updated encoder interface
• 3HAC17484-6/03: Axis rotary AC motor assembly, IRB6640 variant, revision 03 — higher-torque axis configuration
• 3HAC025338-001: Motor, axis 1, IRB6600/6640 — base rotation drive
• 3HAC025339-001: Motor, axis 2, IRB6600/6640 — lower arm elevation drive
• 3HAC025340-001: Motor, axis 3, IRB6600/6640 — upper arm drive
• 3HAC025341-001: Motor, axis 4, IRB6600/6640 — wrist rotation drive
• 3HAC025342-001: Motor, axis 5, IRB6600/6640 — wrist bend drive
• 3HAC025343-001: Motor, axis 6, IRB6600/6640 — tool flange rotation drive

Gearbox & Mechanical Transmission

• 3HAC028357-001: Gearbox, axis 1, IRB6600 — primary slew ring gearbox assembly
• 3HAC028358-001: Gearbox, axis 2, IRB6600 — lower arm gearbox
• 3HAC028359-001: Gearbox, axis 3, IRB6600 — upper arm gearbox
• 3HAC028360-001: Gearbox, axis 4, IRB6600 — wrist gearbox unit

Controller & Drive Electronics (IRC5 Compatible)

• 3HAC026254-001: Drive unit, IRC5, axis 1–3 — main drive module for lower axes
• 3HAC026255-001: Drive unit, IRC5, axis 4–6 — wrist axis drive module
• 3HAC018144-001: Computer unit, IRC5 main computer — robot controller CPU board
• 3HAC020466-001: I/O unit, IRC5 — digital I/O interface module
• 3HAC025917-001: Power supply unit, IRC5 — 24 VDC system power supply

Encoder & Feedback Systems

• 3HAC17484-1: Resolver/encoder assembly — axis position feedback unit
• 3HAC14550-2: Serial measurement board (SMB) — multi-axis encoder signal processor

Quality Control for the IRB6600 Range

IRB6600 rotary AC motor assemblies present specific test challenges due to the integrated resolver feedback system and the high-inertia load profiles of the axes they serve. DriveKNMS applies the following test protocol to all IRB6600 motor units prior to shipment:

• Winding resistance measurement: Three-phase resistance balance check per ABB service manual tolerance (typically ±5% phase-to-phase)
• Insulation resistance test: 500 VDC megohmmeter test, minimum 100 MΩ phase-to-ground
• Resolver signal verification: Sine/cosine output amplitude and phase angle check using dedicated resolver test fixture
• Bearing inspection: Axial and radial play measurement; replacement if outside ABB-specified tolerance
• Brake function test: 24 VDC brake release verification and static holding torque confirmation
• Encoder communication test: SMB signal integrity check for units with digital encoder interface (revision /03 and later)