Product Description:

The TVM2.1-050-W1 is a power supply module manufactured by Bosch Rexroth Indramat and belongs to the TVM Power Supply Modules series. Intended for use in multi-axis drive systems, the unit converts three-phase line power into a regulated DC bus and provides auxiliary low-voltage rails required by motion controllers. By centralizing power conversion, it simplifies cabinet wiring and lets multiple drive amplifiers draw energy from one shared source. That arrangement is useful where several axes start, stop, and exchange energy on a common bus during coordinated motion. The internal bleeder circuit also dissipates regenerated energy during deceleration, helping protect the shared DC link from overvoltage.

The supply accepts a nominal input of 220 VAC and rectifies it to a stable bus level of 300 VDC. Under continuous loading, the module can deliver 50 A, which corresponds to a rated output of 15 kW for connected drive sections. For rapid load changes, it supports a peak current of 150 A for 300 ms, which helps during short acceleration demands and brief current surges. Returned kinetic energy is routed into the bleeder resistor, which absorbs 450 W continuously and up to 10 kW in short peaks, while the storage section buffers 14 kWs before dissipation begins. A regulated bus helps connected amplifiers maintain consistent response when multiple axes demand power at nearly the same time. Maximum power loss is 580 W, which helps determine cabinet ventilation requirements.

Separate logic rails leave the front connector, and the +24 VL line can source up to 8 A for control devices while the ±15 VM rails supply 1.0 A and 0.9 A for analog sensors and interface electronics. The auxiliary outputs support control circuits that must remain stable even while the main bus is supplying motor power. An integral fan draws only 30 W to move cooling air through the chassis, and when installed in an enclosure, the assembly has an IP10 protection rating. Operation is permitted up to 1000 m above sea level without derating, and the 15 kg mass supports direct vertical mounting on a grounded back panel. This layout helps maintain orderly airflow through the module during operation.