Product Description:

The TVM 2.1-050-220/300-W1/115/220 is a regulated DC power supply module produced by Bosch Rexroth Indramat for the TVM Power Supply Modules series. In a multi-axis drive system, it converts three-phase mains power into a stable DC bus for connected servo drives. It also absorbs regenerated energy through its internal bleeder circuit, which helps keep bus voltage within the operating range of the axes. Because the bus is regulated rather than left to vary with line conditions, downstream drives receive a more predictable supply during normal motion and deceleration.

The module is version 1 and accepts AC 220 V with a +15/-10% tolerance window while operating from a mains frequency of 50...60 Hz. Its control electronics can run from AC 115 V or 220 V, which supports common plant control supplies. Under continuous load, it supplies 25 A of DC bus current, and the internal bleeder resistor dissipates 0.45 kW during regenerative events. The supply can absorb up to 14 kWs of feedback energy, and a built-in air blower removes the resulting heat while consuming 30 W. Typical conversion losses are 580 W, and humidity class F materials support use in damp production areas.

The DC link is regulated at DC 300 V and can deliver peak bursts of 150 A for 300 ms to support short acceleration demands. Steady-state operation is limited to a type current of 50 A and a type power of 15 kW, so the power stage remains within its thermal capacity. The housing has an IP10 protection class and a mass of 15 kg, and series index 2 keeps it compatible with the TVM cabinet framework. The module mounts vertically and exhausts air through the top, which matches the fan path and supports orderly cabinet airflow. This layout suits cabinets that guide cool air from the lower section upward through the power electronics before discharge.