Product Description:

The DDS 2.1-W025-DA01-00 is a digital AC servo drive controller produced by Bosch Rexroth Indramat for its DDS Drive Controllers series. It regulates torque, speed, and position of synchronous and induction motors in automated machinery by processing command signals and modulating three-phase output to the connected motor. In automated equipment, it serves as the power stage between the machine controller and the motor, translating reference signals into regulated motor current. Command and diagnostic data are exchanged through an analog interface, giving the host PLC direct voltage and current loops instead of fieldbus communication. This arrangement supports closed-loop control in systems that use conventional analog motion commands.

This controller delivers a continuous output of 25 A, allowing it to pair with medium-power servomotors without exceeding its thermal design limits. An enclosure rating of IP20 provides touch-safe finger protection while leaving airflow paths open for heat dissipation inside a protected cabinet. Thermal management relies on air from inside the control cabinet, so the drive uses conditioned panel airflow and does not require its own external blower. For position verification, the module interprets encoder signals through digital servo feedback, which supports high-resolution closed-loop control without additional interface cards. Using encoder feedback inside the drive helps maintain stable speed and position regulation during changing load conditions.

The controller operates between 0 to 45 °C and can be stored from -30 to 85 °C without damage to its electronic components when unpowered. The storage range supports transport and indoor warehousing before installation. Altitude capability reaches 1000 m above sea level, and reduced air density above that point can require current derating. The unit uses Function ID 01, which sets its available control function and parameter group.