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Description
ABB DSQC345C Rectifier DC2
The ABB DSQC345C 3HAB8101-3, also cataloged as the DSQC345C Rectifier DC2 unit, operates as a dedicated hardware component for DC power rectification and servo drive power distribution within ABB S4C and S4C+ robot controller systems.
Hardware Specifications
Parameter
Specification
Model
ABB DSQC345C 3HAB8101-3
Brand
ABB
Origin
Sweden
Weight
Approximately 3.68 kg - 3.9 kg
Dimensions
Approximately 460 mm x 240 mm x 300 mm
ABB Type Designation
DSQC345C Rectifier DC2
Component Type
Servo Drive Rectifier Unit
Application
ABB S4C and S4C+ robot controller drive system
Main Function
DC power rectification and distribution for robot servo axes
ABB Industrial Drive and Backplane Integration
The ABB DSQC345C performs DC power conversion functions inside the robot drive architecture. The module receives the controller power input and provides regulated DC supply distribution for servo drive components.
Furthermore, the unit integrates with ABB robot controller power assemblies through the internal electrical interface. Proper installation maintains the required power path integrity between the rectifier stage and servo control hardware.
The DSQC345C belongs to ABB legacy robot hardware platforms, where firmware flash compatibility and controller generation matching must be verified before replacement. Incorrect module selection may affect drive initialization and axis power availability.
Frequently Asked Questions
Q: Which ABB robot controllers support the DSQC345C 3HAB8101-3? A: The DSQC345C is designed for ABB S4C and S4C+ robot controller systems. Compatibility must be confirmed according to the installed controller hardware configuration.
Q: Does the DSQC345C provide direct servo axis control functions? A: No. The module functions as a rectifier and DC power distribution component. Servo regulation and motion commands are handled by separate control and drive modules.
Q: What installation checks are required before replacing the DSQC345C? A: Verify connector compatibility, DC power circuit requirements, controller generation, grounding connections, and cabinet wiring conditions before installation.
Field Installation Guidelines
Disconnect all input power sources before removing or installing the rectifier module.
Confirm that the replacement DSQC345C matches the original ABB part number 3HAB8101-3.
Inspect DC bus wiring, power connectors, and grounding points for mechanical damage or oxidation.
Maintain proper cabinet airflow and avoid blocking ventilation paths around power conversion assemblies.
Route power cables separately from low-level signal wiring to reduce electrical interference.
Verify system alarms and servo drive status after power restoration and controller startup.
