Product Description:

The TVM 2.1-050-220/300-W1/220/115 is a power supply unit produced by Bosch Rexroth Indramat within the TVM Power Supply Modules series. Designed for multi-axis drive assemblies, the unit converts three-phase factory mains into a regulated DC bus that feeds servo inverters and related motion equipment. By integrating switching, braking, and cooling functions in one housing, it simplifies cabinet layout and helps connected drives receive a stable energy source for continuous industrial automation duty. Its compact housing allows mounting near controllers to help reduce cable impedance.

In normal operation, the module accepts a supply of AC 220 V over a line frequency range of 50...60 Hz. Mains variation is permitted within +15/-10%, so brief voltage dips or surges do not disturb the downstream electronics. Internally, a built-in blower pulls air across the heat sinks, maintaining semiconductor temperatures without external ducting. On the output side, the converter can deliver a continuous current of 25 A, supporting multiple axes without exceeding thermal limits. Energy is stored on capacitors and held at a nominal bus level of DC 300 V, providing stable voltage for dynamic acceleration commands while keeping ripple low enough for precision positioning.

The remaining ratings cover overload handling and energy dissipation. A bleeder circuit rated at 0.45 kW converts regenerated kinetic energy into heat, preventing bus overvoltage during rapid deceleration. The unit can supply short bursts up to 50 A, giving connected drives extra headroom for torque peaks before thermal foldback occurs. Internal logic voltages tolerate supply deviations of ± 15%, which helps maintain controller operation when facility power is unstable. The unit is Configuration 1 and Series 2, which distinguishes it from higher-power versions in the same product line.