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ABB Drive Unit

ABB spare part — Updated 2026-09-16

Also written “DriveUnit”.

ABB Drive Unit — is referenced by 3 ABB fault codes in the LogrobotLM catalogue — including 34201, 34300, 39418. Those are the faults that put this part under suspicion; confirm the real cause against your robot's backup before ordering a replacement.

Orderable part numbers

  • 3HAC14546-1Main servo drive unitIRB 140
  • 3HAC14546-2Main servo drive unitIRB 140
  • 3HAC14546-3Main servo drive unitIRB 140
  • 3HAC14546-4Main servo drive unitIRB 140
  • 3HAC14546-6Main servo drive unitIRB 140
  • 3HAC14550-1Single servo drive unitIRB 140
  • 3HAC14550-2Single servo drive unitIRB 140
  • 3HAC14550-3Single servo drive unitIRB 140
  • 3HAC14550-4Single servo drive unitIRB 140
  • 3HAC050096Drive unit, axes 5-6IRB 1410
  • 3HAC050098Drive unit, axes 5-6IRB 1410
  • 3HAC050099Drive unit, axes 5-6IRB 1410

Controller generation matters — always match the exact variant on your unit's label before ordering.

Fault codes that point to this part

Searching for a Drive Unit? These ABB faults name it among the parts to check. Open any one for the meaning and what to check — then confirm which cause is really yours before ordering.

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →