HDS04.1-W200N-HS78-00-FW
The HDS04.1-W200N-HS78-00-FW drive controller manufactured by Bosch Rexroth Indramat belongs to the HDS Drive Controllers series. It is designed to regulate servo and spindle axes within the modular DIAX04 drive platform. By converting command data from higher-level control systems into regulated output current, the unit supports precise velocity and position control in industrial machinery such as machining centers, packaging lines, and other automated equipment. In a typical axis system, the controller works with a separate power supply section and the connected motor to translate control commands into stable motion. That makes it suitable for equipment that requires repeatable speed changes and accurate positioning over long production cycles.
It exchanges real-time setpoints over the SERCOS fiber-optic bus, allowing long communication runs without the signal distortion associated with older analog links. The power stage delivers a continuous output of 200 A, which allows the controller to operate large torque motors without derating under normal conditions. Heat is removed by a built-in air blower that directs cabinet air across the heat sink. This helps maintain thermal stability during sustained demand and keeps the enclosure layout straightforward. The unit is part of Line 04, and its mechanical dimensions and mounting locations match the established layout used throughout the platform.
The hardware is identified as Version 1, marking the first electrical revision for this model. The product type is an HDS Drive Controller, and it requires a compatible supply module and a motor feedback line to complete an axis circuit. Its control architecture is intended for closed-loop servo operation, where current regulation, velocity response, and position accuracy are coordinated by the higher-level machine controller. It can be used in cabinets that group several coordinated axes under one control system, provided the surrounding system components match the electrical and feedback requirements of the drive. This arrangement supports both servo and spindle applications in multi-axis installations without adding external cooling ductwork.