4.13 Replacement of drive unitsLocationThe illustration shows the location of drive units in the controller.DBA Cxx1300000808Additional Rectifier Unit (only used for additional axes in combination with smallrobots)AMain Drive Unit for small robotsBMain Drive Unit for large robotsCAdditional Drive Units (for additional axes)DConfigurationThe drive units exist in a number of versions, these are described in sectionConfiguration of the drive system on page 108.Required equipmentNoteEquipmentSpecified in section Configuration of thedrive system on page 108.Drive unitsThe contents are defined in sectionStandard toolkit, IRC5 on page 305.Standard toolkitThese procedures include references tothe tools required.Other tools and procedures may be required.See references to these procedures in the step-by-step instructions below.See Circuit diagrams on page 325.Circuit diagramContinues on next page246 Product manual - IRC53HAC047136-001 Revision: M© Copyright 2004-2018 ABB. All rights reserved.4 Repair4.13 Replacement of drive units
