Product Description:

The TDM 1.2-30-300-W1 servo drive module is produced by Bosch Rexroth Indramat within the TDM Servo Drive Modules series. As a closed-loop power stage, it supplies regulated current to Indramat velocity-controlled or torque-controlled motors, allowing precise speed adjustment in automated machining centers, packaging lines, and material-handling cells. By converting three-phase input power into controlled output for the motor, the unit forms the link between the plant's PLC command layer and the electromechanical axis it drives. This operating role supports stable motor response when the commanded speed changes during normal machine cycles. Because it works in a closed control loop, the module can follow changing reference signals while the connected motor remains aligned with the commanded operating point.

Delivering a continuous output of 9 kW, the module can sustain moderate-power axes without derating. Under that load, it dissipates only 190 W of internal heat, so cabinet ventilation must remove that thermal loss effectively. An integral fan draws approximately 30 VA and forces air across the heat sink to keep semiconductor junctions within safe limits. The housing carries a IP10 protection rating, so it must be mounted inside a protective enclosure. Ambient air may reach as high as 45 °C during normal duty, and the power section uses forced airflow to control internal temperature. Control electronics draw +15 V at 140 mA, -15 V at 60 mA, and an external ±15 V reference line at 15 mA to support analog velocity commands and feedback processing circuits. Those auxiliary supply lines support the analog interface section separately from the main power output stage.

The drive can operate in electrical rooms where peak temperatures climb to 55 °C and at elevations up to 1000 m above sea level without output reduction. Moisture tolerance aligns with Humidity Class F, and the unit uses Category C insulation to maintain dielectric integrity when it shares cabinets with high-voltage devices. The chassis weighs 10 kg, which keeps the mounting load modest and supports compact cabinet layouts. These operating conditions fit enclosed industrial installations where thermal control and electrical isolation are important during continuous use.