ABB IRB 2600 Axis Modules: 3HAC047584-002 & 3HAC034644-004

Technical Dossier

Product Details And Specifications

ABB IRB 2600 Series: Comprehensive Module Range and Technical Overview

The ABB IRB 2600 is a 6-axis industrial robot platform engineered for medium-payload applications in the range of 12–20 kg, with a reach envelope of 1.65 m to 1.85 m. It has achieved widespread deployment across global heavy industry sectors including automotive body-in-white assembly, chemical processing plants, oil refinery pipe-handling cells, and nuclear facility maintenance operations. Its compact footprint combined with a high wrist torque rating makes it a preferred platform for arc welding, material handling, machine tending, and press-tending applications. The IRB 2600 operates under ABB's IRC5 controller architecture and is fully compatible with RobotWare 5.x and 6.x software stacks. As of 2026, the IRB 2600 series is in its mature lifecycle phase, with ABB having transitioned primary development focus to the IRB 2600ID and IRB 2700 platforms. Long-term spare parts support and axis module availability remain critical for facilities operating existing IRB 2600 installations.

The Evolution of IRB 2600 Architecture

The IRB 2600 was introduced by ABB Robotics as a successor to the IRB 2400 platform, addressing demand for higher payload density and improved path accuracy in confined work envelopes. Early production units (pre-2010) used a first-generation axis-1 gearbox assembly with a separate motor flange interface. From 2011 onward, ABB consolidated the axis-3 upper arm and wrist assembly into an integrated casting, reducing backlash and improving repeatability to ±0.03 mm. The 3HAC047584-002 axis computer board represents the second-generation motion control hardware, replacing the earlier 3HAC026254-001 variant with improved FPGA-based current loop processing. The 3HAC034644-004 axis module introduced revised encoder feedback circuitry compatible with the Hiperface DSL single-cable resolver standard. Compatibility between first- and second-generation axis boards requires firmware alignment at RobotWare build level; cross-generation substitution without firmware update will result in axis calibration faults (error code 50204). Facilities migrating from IRB 2400 to IRB 2600 must also account for differing base mounting bolt patterns (IRB 2400: 4×M16; IRB 2600: 6×M16).

IRB 2600 Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified component catalog for the ABB IRB 2600 series, classified by functional category. Each entry reflects a discrete, field-replaceable unit (FRU) within the robot's mechanical or electrical architecture.

Axis Computer & Drive Boards

• 3HAC047584-002: Axis computer board, 2nd-gen FPGA motion controller for axes 1–6, IRC5 compatible
• 3HAC026254-001: Axis computer board, 1st-gen variant, pre-2011 production units
• 3HAC034644-004: Axis module assembly, revised encoder feedback, Hiperface DSL interface
• 3HAC025338-001: Drive unit, single-axis servo amplifier, 400V AC input, axes 4–6
• 3HAC025338-004: Drive unit, single-axis servo amplifier, revised thermal management variant

Motors & Gearboxes

• 3HAC17484-1: Axis-1 motor, 1.5 kW, flange-mount, with integrated resolver
• 3HAC17484-3: Axis-2 motor, 2.2 kW, revised winding for high-cycle applications
• 3HAC17484-5: Axis-3 motor, 1.1 kW, upper arm mount
• 3HAC029105-001: Axis-1 gearbox, 2nd-gen, 1:100 reduction ratio, grease-lubricated
• 3HAC029105-003: Axis-2 gearbox, 1:80 reduction, integrated output flange
• 3HAC029105-005: Axis-3 gearbox, 1:60 reduction, upper arm assembly

Wrist & Upper Arm Assemblies

• 3HAC028357-001: Wrist unit complete, axes 4–5–6, IRB 2600-12/1.65 variant
• 3HAC028357-003: Wrist unit complete, axes 4–5–6, IRB 2600-20/1.65 variant
• 3HAC026557-001: Upper arm complete assembly, includes axis-3 housing and cable conduit

Power Supply & I/O

• 3HAC024488-001: Brake release unit, 24V DC, axes 1–6 simultaneous release
• 3HAC031851-001: SMB (Serial Measurement Board), resolver signal conditioning, IRC5 interface
• 3HAC026254-003: I/O module, 16DI/16DO, 24V DC, base frame mount

Sourcing Hard-to-Find & Obsolete IRB 2600 Parts

ABB's official spare parts program provides support for the IRB 2600 series through its standard 10-year post-production parts availability commitment. However, for installations operating beyond this window, or for facilities requiring immediate availability outside ABB's regional distribution lead times (typically 4–12 weeks for low-volume axis boards), DriveKNMS maintains a dedicated inventory of tested IRB 2600 FRUs sourced from decommissioned production lines, authorized refurbishers, and OEM overstock channels. Key obsolete and hard-to-source references include the 3HAC026254-001 (1st-gen axis computer), 3HAC017484-1 series motors from pre-2012 production batches, and early 3HAC029105-001 gearbox assemblies with the original seal specification. DriveKNMS cross-references all sourced units against ABB's revision history database to ensure hardware revision compatibility with the customer's installed RobotWare version. Emergency same-day dispatch is available for in-stock units to minimize unplanned downtime in continuous-process environments.

Quality Control for the IRB 2600 Range

All IRB 2600 axis boards and drive units processed by DriveKNMS undergo a structured test protocol prior to dispatch. Axis computer boards (3HAC047584-002, 3HAC026254-001) are bench-tested on an IRC5 controller test rig with simulated resolver feedback across all six axes, verifying current loop response, FPGA firmware integrity, and communication bus (PROFIBUS/DeviceNet/EtherNet/IP) handshake. Gearbox assemblies are inspected for backlash within ABB's published tolerance (axis 1: ≤0.02°; axis 2–3: ≤0.03°) using a calibrated dial indicator fixture. Motor units are tested for winding resistance symmetry (±5% tolerance across phases), insulation resistance (≥100 MΩ at 500V DC), and resolver output signal amplitude. SMB boards are validated for resolver excitation voltage (7V RMS ±2%) and signal-to-noise ratio. All units are issued a DriveKNMS test certificate with individual serial number traceability before shipment.