Product Description:

The TDM 4.1-020-300-W0/S100 servo drive module is produced by Bosch Rexroth Indramat for the TDM Servo Drive Modules series. Designed to pair with Indramat synchronous motors, the unit converts a fixed DC link voltage from the power supply into controlled three-phase output that regulates torque and speed in automated machinery. By integrating signal supply outputs, current regulation, and fault monitoring into a single housing, it serves as the central power stage of medium-power positioning and feed axes. This arrangement allows the module to respond to changing load demands while maintaining stable motion during routine machine operation.

During steady operation, the regulator can deliver a continuous motor current of 15 A, which corresponds to about 6 kW of mechanical output when the connected motor is at rated speed. This current is drawn from a DC link held at 300 VDC, a level supplied to all axes on the shared bus. For command bursts such as rapid acceleration, the drive can rise momentarily to a peak of 20 A without exceeding thermal limits. Internal losses are limited to 110 W, so cabinet heat calculations remain moderate. The control interface also provides -15 V at 60 mA, +15 V at 150 mA, and +24 V at 400 mA to power encoders, limit switches, and relay coils.

Thermal behavior is managed by natural convection, eliminating fans and reducing airborne contamination inside the cabinet. The front enclosure meets IP10, indicating basic touch protection while relying on the control cabinet for additional ingress protection. Reliable operation is specified up to 55 °C ambient, with humidity class F and insulation category C, provided the module is mounted below the 1000 m altitude limit. At just 8 kg, the chassis can be installed on dense multi-axis panels without exceeding common rail load limits, and continuous service remains available when air can circulate freely across the heat sink fins.