ABB IRB7600 3HAC17811-1 Robot Battery

Technical Dossier

Product Details And Specifications

ABB IRB7600 Series Technical Notes

The ABB IRB7600 is a heavy-duty industrial robot series engineered for high-payload applications in the range of 150 kg to 500 kg. It is deployed at scale across global heavy industry sectors including automotive body-in-white assembly, foundry operations, chemical processing plants, nuclear facility maintenance, and offshore oil refinery environments. The IRB7600 platform operates on ABB's IRC5 controller architecture and is recognized as one of the most mechanically robust 6-axis robot platforms in continuous production since its introduction. Its modular mechanical and electrical design means that individual components — including batteries, servo drives, SMB boards, and axis computer units — are field-replaceable, making long-term spare parts availability a critical operational requirement for plant maintenance teams worldwide.

The Evolution of IRB7600 Architecture

The IRB7600 series was introduced by ABB Robotics in the early 2000s as a successor to the IRB6400 and IRB6600 heavy-payload platforms. The original variants — IRB7600-150/3.5, IRB7600-325/3.1, IRB7600-400/2.55, IRB7600-500/2.55 — were designed around the S4C+ controller. With the transition to the IRC5 controller platform (circa 2005–2007), the IRB7600 underwent a significant control architecture migration, introducing the DSQC series of computer and drive modules. This transition created a compatibility boundary: S4C+ era components (DSQC 346, DSQC 373) are not interchangeable with IRC5-era modules (DSQC 662, DSQC 668) without controller-level reconfiguration. As of 2026, the IRB7600 series is in its mature/end-of-active-production lifecycle. ABB continues to provide limited OEM support, but the majority of replacement parts — particularly SMB boards, axis computers, battery units, and servo amplifier modules — are sourced through specialist distributors. Plants operating IRB7600 robots beyond their original 15–20 year design life require dedicated lifecycle extension sourcing strategies.

IRB7600 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components used across the IRB7600 platform. Each entry reflects a discrete, field-replaceable unit with a defined functional role within the robot system.

Batteries & Power Backup

• 3HAC17811-1: SMB battery unit for axis position memory retention on IRB7600; maintains encoder data during power-off cycles.
• 3HAC16831-1: Backup battery assembly for IRC5 controller main computer; supports CMOS and parameter retention.
• 3HAC14178-1: Rechargeable NiMH battery pack for S4C+ era IRB7600 SMB board; legacy replacement unit.

Serial Measurement Board (SMB)

• 3HAC14550-2: SMB board for IRB7600; interfaces axis resolver signals to the robot computer unit.
• 3HAC031670-001: Revised SMB board assembly compatible with IRC5-controlled IRB7600 variants.

Axis Computer & Robot Computer Units

• DSQC 662 / 3HAC026254-001: IRC5 main robot computer unit; manages motion planning, I/O processing, and fieldbus communication.
• DSQC 668 / 3HAC031670-001: Drive module for IRC5; controls servo amplifier outputs for axes 1–6.
• DSQC 609 / 3HAC14178-1: Power supply unit for IRC5 controller cabinet; provides regulated DC rails to computer and I/O modules.
• DSQC 652 / 3HAC025917-001: 24 DI / 16 DO digital I/O board for IRC5; standard discrete signal interface module.
• DSQC 658 / 3HAC025784-001: Analog I/O board for IRC5; 4 AI / 4 AO channels for process signal integration.

Drive & Servo Amplifier Modules

• 3HAC024136-001: Servo drive unit for axes 1–3 on IRB7600; high-current amplifier module for large-frame axis motors.
• 3HAC024137-001: Servo drive unit for axes 4–6 on IRB7600; lower-current amplifier for wrist axis motors.
• 3HAC14391-2: Rectifier unit for IRC5 drive system; converts AC mains to DC bus for servo amplifiers.

Communication & Fieldbus Adapters

• DSQC 663 / 3HAC026257-001: DeviceNet master/slave adapter for IRC5; enables integration with factory-floor DeviceNet networks.
• DSQC 688 / 3HAC036060-001: PROFIBUS DP adapter for IRC5; supports PLC-to-robot communication over PROFIBUS.
• DSQC 679 / 3HAC028357-003: FlexPendant teach pendant unit for IRC5; primary operator interface for IRB7600 programming and jogging.

Mechanical & Structural Components

• 3HAC17484-1: Axis 1 gearbox for IRB7600-500; precision planetary reducer for base rotation axis.
• 3HAC14580-1: Balancing cylinder assembly for IRB7600; counterbalances upper arm weight during vertical motion.