Bosch Rexroth RAC 2.2-200-460-A00-W1 Spindle Drive Control

Overview

The RAC 2.2-200-460-A00-W1 is a mains supply unit of the Rexroth DIAX04 generation. It rectifies a three-phase 380 to 480 V mains and provides an unregulated DC bus of 530 to 670 V DC to the HDD and HDS drive controllers of the same family, so a complete drive package can be fed from one compact unit without a transformer. The type code rates it at 75 kW nominal power, it carries a bleeder rated 2.5 kW continuous and 270 kW peak, and it supplies the 300 W control voltage for the connected controllers from the same mains connection.

Product Identification

• Type: RAC 2.2-200-460-A00-W1
• Function: AC to DC bus supply unit, unregulated DC bus

Key Features

• Integrated power contactor separates the drive controllers from the mains, controlled through a 24 V coil with 20 A break-away starting current and 1 A holding current
• 2.5 kW continuous bleeder with 270 kW peak capability and 250 kWs maximum regenerated energy
• Supplies the 300 W control voltage for the drive package from the same mains connection
• Built-in blower and IP10 open-frame design for control cabinet mounting

Application Fields

• Handling and robotics systems requiring a shared DC bus for several axes
• Retrofits and spare-part replacement where an existing HVE supply unit has failed and the drive package must keep its original architecture
• Test stands and special machinery with a central DC bus and one common mains feed