Product Description:

The TVM 2.1-050-220 is a regulated power supply module produced by Bosch Rexroth Indramat and assigned to the TVM Power Supply Modules series. Designed for multi-axis drive systems, the unit converts a three-phase mains feed into stabilized DC power on a shared bus so servo and spindle drives receive consistent energy during acceleration, braking, and steady-state operation. By integrating a bleeder resistor stack and a regeneration path, the module absorbs returned energy from connected drives, keeping bus voltage within safe limits in industrial automation cabinets.

When supplied with a three-phase line at AC 220 V, within a permissible variation of +15 / -10 %, the module operates across an input frequency range of 50 to 60 Hz. Internally, it rectifies and smooths this feed to a bus potential of DC 300 V. Under continuous duty, the power section can deliver 25 A to the drive group, while the overall power capability reaches 15 kW. A type-rated current of 50 A serves as the sizing reference for protective devices, and the embedded bleeder network dissipates 0.45 kW so the bus stays stable during overvoltage events. Separate auxiliary rails supply ±15 V at 1.0 A and 0.9 A. A 24 V logic rail at 8 A provides control electronics with an isolated source.

In dynamic cycles, the supply can withstand a peak bus surge of 150 A for 300 ms, enabling short bursts of high motor torque without tripping. The module can absorb feedback energy of up to 14 kWs before the bleeder reaches its thermal limit, and any losses that cannot be regenerated amount to 580 W that must be removed by cabinet airflow. Operation is permitted at ambient temperatures up to 55 °C and at installation heights not exceeding 1000 m. The housing has an IP10 protection class, uses mechanical configuration 1, and belongs to series 2 of the TVM family. With a transport weight of 15 kg, the module fits standard control enclosures while leaving clearance for heat sinks and wiring.