ABB 3AUA0000110429
ABB 3AUA0000110429 - Image 2

ABB 3AUA0000110429

nterpretation Guidance:

  • If your plant has ACS880 / ACS580 drives​ → 3AUA… = RDCU-12C CPU or RDCO-04C mezzanine or NAIO-03F analog board. Most common spare = RDCU-12C (PM891 class for drives) or the complete ACS880 control unit assembly.
  • If your plant has ACS800 (older generation)​ → 3AUA numbers may cross-ref to ACS800 equivalents (NAMC-01 = 3AUA… sometimes used in cross-ref docs) — but ACS800 uses 3ADT… numbers (like SDCS-POW-1 = 3ADT220090R0003) — so 3AUA strongly hints ACS880 gen.
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Category: SKU: ABB 3AUA0000110429

Description

ABB 3AUA0000110429

  • Assumed = RDCU-12C (ACS880 Control Unit) for this explanation:
    • See earlier RDCU-12C description in PM865K01 etc. answer — for drives it’s the CPU that runs DTC, connects to Ethernet (built-in 2×GbE), CEX slot for CI854/CI840, ModuleBus for local S800 I/O, RS-232/485, USB for DriveWindow.
    • Mounts inside ACS880 inverter module (AINT-x2 gate driver link)
    • Spare: swap RDCU-12C → download firmware & parameters (.dri) from backup → verify motor ID
    • Precaution:​ Firmware version must match DriveWindow / Automation Builder version; after swap re-do motor ID run if first start on new RDCU; keep .dri & .fw backup on USB/PC
    • Handle ESD; check fiber optic link to AINT seated
  • If Actually RDCO-04C or NAIO-03F:​ → see RDCO-04C / NAIO-03F description earlier — those are mezzanine/analog boards for RDCU-12C.

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