New Original ABB ACU-01B 3HNA024871-001 Spray Robot Air Control Unit

Product Details

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FAQs

Q1: What is the primary function of the ACU-01B?

It is a spray robot air control unit that precisely regulates atomizing air, shaping air, and paint flow using independent PID control loops. It also manages spray process sequencing (flushing, color change, pre-spray, finishing) and provides full-circuit fault diagnostics uploaded to the IRC5 HMI .

Q2: What is the CAN vs Ethernet mode issue?

ACU-01B spare parts are shipped in CAN mode by default. Paint robots delivered from September 2019 use Ethernet (ETH) mode. The mode must be changed via a terminal program.

Q3: Can the ACU-01B be used on non-spray ABB robots?

No. The ACU-01B is specifically designed for spray robot applications (IRB 5400/5500/580 series). It is not compatible with standard material handling or welding robots .

Q4: What are the common failure symptoms?

Common symptoms include: no air control response (check 24 VDC supply and fuse), incorrect air output (verify 0–10V or 4–20mA command signal type), robot alarm on startup (incorrect first-time setup), and unstable pressure (check supply air and pneumatic path) .

Q5: Is this module still available?

Yes. The ACU-01B is available as New Original and New Surplus through aftermarket suppliers, typically with 12-month warranties . It remains an active spare part for the large installed base of ABB paint robots.