Product Description:

The TDM 1.2-100-300-W1-115/S102 is a drive controller from the TDM Servo Drive Modules series produced by Bosch Rexroth Indramat. As a modular power stage for synchronous and asynchronous servo motors, it converts rectified DC bus energy into controlled three-phase output, allowing closed-loop speed and torque regulation in packaging lines, machine tools, and automated handling axes. Installed in the cabinet as a standalone module, it interfaces with Indramat supply units through its DC link and provides the amplification and protective functions required for precision motion tasks.

This module delivers a continuous motor phase current of 65 A, enabling sustained mechanical output near its rated electrical throughput of 30 kW. The internal DC bus is maintained at 300 VDC, drawn from the common supply, and it can reach a peak phase current of 100 A during short acceleration events. A built-in fan removes switching losses, and the fan is energized from a dedicated 115 VAC source with a power draw of 30 VA. Insulation class C materials separate power conductors from the chassis. The control electronics require a +15 V rail that sinks 140 mA, while the ready relay contacts are rated at 24 V / 1 A for status feedback. Temperature sensing is handled by a 20 kΩ resistor integrated on the heat sink.

Total conduction and switching losses are limited to 400 W, and that heat is directed into the forced-air cooling path. The housing carries an IP10 rating, so the module must be installed inside a closed cabinet while still receiving free airflow across the intake slots. Reliable operation is specified up to 55 °C ambient and at mounting elevations not exceeding 1000 m, which matches typical industrial control panels. At a mass of 10.5 kg, the unit mounts on standardized rail hardware without additional reinforcement.