DDS2.1-W100 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat DDS2.1-W100 is a digital AC servo drive controller from the DDS Drive Controllers series. It operates with a maximum continuous current of 40 amps and a peak current of 100 amps, while offering a protection category of IP20. The controller supports a service interface with V24 RS232C and has an operating temperature range of 0 to 45 degrees Celsius.
Internal Product Review
The DDS2.1-W100 is a Bosch Rexroth Indramat digital AC servo drive controller with IP20 protection. The 100 A peak / 40 A continuous current rating and 75 m maximum feedback cable length support responsive servo performance and flexible system integration. Stable operation across a 0 to 45°C temperature range makes this controller a strong fit for demanding automation panels.
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Product Description:
The DDS2.1-W100 is a digital AC servo drive controller manufactured by Bosch Rexroth Indramat for the DDS Drive Controllers series. In an automation cell, it accepts motion commands from a PLC, processes motor feedback, and modulates the inverter stages so that commanded speed, torque, and position are achieved with minimal following error. The product functions as the closed-loop interface that couples higher-level control logic to the electromechanical behavior of synchronous or induction servo motors.
The power section permits a peak phase current of 100 A while sustaining a continuous current of 40 A, and the thermal design allows up to 380 W of power dissipation through its heat sink and control-cabinet airflow. Logic electronics draw 150 mA from each ±15 V rail and 500 mA from the 24 V service supply. A separate current limit of 60 A for both peak and continuous duty is provided on the second rating channel to match smaller motors. Command and diagnostic data reach the controller through a V.24 / RS-232C service interface, and motor feedback enters at the X2 15-pin D-Sub connector. Field wiring is secured with 5 Nm torque on terminals A1–A3 and 3 Nm on the L-, L+ and PE studs. The housing stands 390 mm high, 325 mm deep, and has an IP20 rating that is suitable for mounting inside a sealed electrical enclosure.
For reliable field operation, the unit tolerates relative humidity up to 95 % or an absolute moisture content of 25 g/m³ without condensation. It operates between 0 to 45 °C and can be stored safely from -30 to 85 °C. Installation is permitted at altitudes up to 1000 m above sea level before derating becomes necessary. Encoder leads may run up to 75 m to accommodate large machine footprints while still maintaining signal integrity through the differential-serial feedback channel.
