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The 3HAC14546-2 is legacy d6 2e 2c 2b main servo drive unit used in early ABB IRC5 M2004 drive modules. It provides the combined 2E, 2C and 2B power-stage arrangement for the controller main axes.
Confirm the IRC5 drive cabinet, robot type, stage allocation, successor 3HAC025338-002 and fan-harness requirement. The full 3HAC14546-2 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, power-stage wiring, cooling and fan harness 3HAC025158-001. Any cable, busbar, harness, fan lead, or mounting hardware must be identified separately unless included in the quotation.
DSQC617_2E2C2B / D6 2E 2C 2B legacy hardware. Use the ABB article number and DSQC/type designation together when reviewing a replacement.
Engineering check: Confirm 3HAC14546-2 is DSQC617_2E2C2B for drive-stage group 2E, 2C and 2B. 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.