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DSQC664A is an ABB additional 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 DSQC664A, 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 DSQC664A 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.
Identify whether the unit occupies X3, Y3 or Z3 and preserve the corresponding external-axis assignment.
Confirm the main drive, DC bus, 24 V supply, Ethernet link, brake wiring and required harness set.
Isolate drive power, document all connections and axis parameters, and complete the ABB recommissioning checks after installation.
Engineering check: Configure DSQC664A as the documented ADU HV / ADU-790A single drive stage at position X3, Y3 or Z3. Match the external-axis motor current class, brake circuit, feedback interface and drive-unit connector set to the controller configuration.
Acceptance test: With the axis unloaded where possible, verify brake release, encoder direction and drive enable. Jog the assigned external axis at reduced speed, check current and following error, then restore calibration and mechanical limits before automatic operation.