Product Description:

The TVM 2.1-050-220/300-W1/220/300 is a power supply module from the TVM Power Supply Modules series produced by Bosch Rexroth Indramat. Designed for cabinet installation, it rectifies and filters mains power and then delivers a stabilized DC bus that feeds multiple Indramat servo and spindle drives. Its role is to provide a common power source for several axes so connected drives can share a stable intermediate circuit during coordinated motion. By integrating energy dissipation and line conditioning, the unit supports consistent drive performance during fast acceleration, braking, and standby cycles in machine tools, printing lines, and packaging stations.

The integrated bleeder circuit can continuously absorb 0.45 kW of regenerative power, preventing bus overvoltage when axes decelerate. Under normal load, the module supplies a continuous output of 25 A, which is the steady current available to the connected converters. Thermal stability is supported by a built-in blower that channels air across internal heat sinks, eliminating the need for separate cabinet fans. Directed airflow also helps reduce localized heat buildup during sustained operation. Mains compatibility covers 50–60 Hz, and the rectifier section is optimized for an input of AC 220 V. This allows installation in 200-volt industrial systems without an external transformer while supporting rapid load cycles.

Voltage margins are addressed on both the AC and DC sides. The supply can accept line deviations of +15/-10%, so brief dips or peaks do not interrupt operation. On the output side, it stabilizes the bus at DC 300 V, which supports drive monitoring of intermediate-circuit energy. Bus regulation is useful when several axes share one supply and return energy during deceleration. For short acceleration bursts, the design can accommodate 50 A without tripping protection stages. In addition, the control electronics allow component tolerances of ± 15%. The factory configuration code is 1, and the series index is 2.