Product Description:

The TVM 1.2-050-220/300-W0/220/380 is a power supply module manufactured by Bosch Rexroth Indramat for the TVM Power Supply Modules series. It converts three-phase mains power into a regulated DC bus that can supply several Indramat drive axes from one source, which supports coordinated motion in automated machinery. The unit also provides central bleeder operation for returned energy and supplies auxiliary logic voltages to connected controllers, so the power section and control section can be served from the same module. Because the module serves a shared supply function, multiple axes can draw from the same DC link instead of relying on separate power sections.

The module accepts an input of AC 220 V at 50–60 Hz, and it tolerates normal line variation without interrupting DC-bus supply. Control electronics can be fed from either 230 V AC or 400 V AC tap points, while the internal ±15 V rails each provide 0.85 A and the 24 V service output supplies 4 A for external devices. Continuous output to the DC bus is rated at 25 A, and the bus is regulated at DC 300 V for the connected drives. A bleeder resistor dissipates regenerative energy at up to 0.30 kW, while cooling is handled by natural convection and the housing has an IP10 rating. These auxiliary outputs support interface circuits and low-power control hardware inside the cabinet.

During short dynamic events, the module can handle a peak current of 150 A, and its type power capability is 15 kW. The storage capacitor bank can absorb up to 14 kWs of returned energy during deceleration, which helps prevent DC-bus overvoltage when attached axes slow heavy loads. Overall thermal losses are limited to 400 W, which affects enclosure spacing and cabinet airflow inside the panel. The unit has a total mass of 14.3 kg, which suits cabinet mounting and supports stable installation on a standard back panel.