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3HAC14546-4 is an ABB main servo drive unit used with the documented ABB Robots platform. Selection must match the complete product identity, hardware execution, connected assemblies and approved system configuration.
Before replacing 3HAC14546-4, compare the supplied nameplate, revision, connectors or terminals and installed position with the original equipment record. After installation, review diagnostics and complete the approved functional checks before service.
ABB 3HAC14546-4 documentation and reference links.
Important Notice: Every linked document must identify the listed model or its documented family. Confirm the complete order code, hardware revision and installed-system requirements before replacement.
Confirm the original IRC5 drive cabinet, robot type, stage allocation and successor 3HAC025338-004 configuration. The full 3HAC14546-4 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, busbar layout, cooling, harnesses and axis-stage connections. Any cable, busbar, harness, fan lead, or mounting hardware must be identified separately unless included in the quotation.
DSQC617_3G3T / D6 3T 3G legacy hardware. Use the ABB article number and DSQC/type designation together when reviewing a replacement.
Engineering check: Confirm 3HAC14546-4 is DSQC617_3G3T for drive-stage group 3G and 3T. 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.