Product Description:

The DDC01.1-K150A-DS04-03-FW is a digital intelligent servo drive produced by Bosch Rexroth Indramat for the DDC Digital Intelligent Servo Drives series. It is used in multi-axis machines to regulate torque, speed, and position of AC servo motors. The unit combines power electronics, control processing, and a real-time communication interface so motion commands from a CNC or PLC can be translated into controlled motor current. Because current, speed, and position loops are handled inside the drive, the motor can respond quickly to changing load demands and follow programmed paths with stable repeatability.

Rated for 3 x 230 V AC mains, the drive draws three-phase input power and can deliver 150 A of continuous output current to the motor windings. During short transients, the output can rise to 1.5 times the rated current, which provides added torque for acceleration or brief overload events. A separate 24 V DC auxiliary supply keeps the control electronics active when the main power stage is off. This separation of input power and control power helps maintain communication and stored operating data during controlled shutdown conditions. Heat is removed by natural convection air cooling, so the enclosure should allow vertical airflow around the heat sink.

An overvoltage monitor trips at 475 V, and an undervoltage detector disables switching when the bus drops to 200 V. Excess temperature is filtered through an internal timer with a 30 s delay before the fault latches, which helps prevent nuisance shutdowns during brief overload conditions. For motion control, the unit uses a SERCOS interface command module to exchange cyclic setpoints over optical fiber, while digital servo feedback from the motor closes the control loop. Optical-fiber communication supports deterministic command transfer and helps maintain synchronization between the controller and the drive during coordinated motion.