Product Description:

The DDS02.1-W100-RS04-03-FW is a modular AC servo drive controller built by Bosch Rexroth Indramat for closed-loop motion tasks in multi-axis machine platforms. It serves as the power and regulation stage between an Indramat supply module and a compatible synchronous or asynchronous motor. In operation, the controller meters current to the motor in real time, returns braking energy to the DC bus, and exchanges motion data with higher-level controls so axes can accelerate, decelerate, and hold position according to programmed commands. Because it is a modular unit, it fits drive systems in which the supply section, control electronics, and motor interface are arranged as coordinated components in one cabinet.

Its power stage is rated for a continuous motor current of 100 A, enabling the controller to drive high-torque motors during sustained operation. Command and diagnostic data are transferred through a SERCOS interface, which provides deterministic real-time communication over fiber optics for synchronized control. Rotor position is captured through resolver feedback, allowing the unit to calculate velocity and shaft angle even at standstill. Thermal management relies on internal air cooling, so the enclosure must provide a clear airflow path across the heat sink. Real-time fiber-optic communication helps keep command timing consistent across linked axes, and the cooling method supports stable operation without an external liquid-cooling circuit.

The unit belongs to Line 02 of the platform and is classified as a Digital AC Servo Drive Controller. It uses numeric tuning constants and software-based adjustment functions instead of analog trimmers, which supports precise setup and repeatable control behavior during machine operation. The hardware build is Version 1, and the controller is used within the DDS Drive Controllers series. Its digital structure allows operating values to be adjusted through stored parameters rather than manual potentiometers, and its modular format allows it to work with the associated supply and motor-control components used in the same drive system.