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The 3HAC14546-1 is legacy d6 3b 3a main servo drive unit used in early ABB IRC5 M2004 robot controllers. It provides the original combined 3B and 3A main-axis power stages in the drive cabinet.
Confirm the original IRC5 controller, robot type, stage allocation and successor 3HAC025338-001 configuration. The full 3HAC14546-1 article number and the installed controller nameplate should be compared before a purchase order is released.
Follow the ABB controller service instructions and verify DC-link discharge, busbars, cooling, mounting and axis-stage wiring. Any cable, busbar, harness, fan lead, or mounting hardware must be identified separately unless included in the quotation.
DSQC617_3B3A / D6 3B 3A legacy hardware. Use the ABB article number and DSQC/type designation together when reviewing a replacement.
Engineering check: Confirm 3HAC14546-1 is DSQC617_3B3A for drive-stage group 3B and 3A. Match the IRC5 M2004 motor, brake and resolver harnesses to the assigned robot axes before applying DC-link power.
Acceptance test: After safe DC-link discharge and reconnection, enable one assigned axis at a time. Check brake release, feedback direction, motor current and following error at reduced speed, then restore calibration and limits before automatic operation.