Product Description:

The TVM 2.1-050-220/300-W1/220/380 power supply module is produced by Bosch Rexroth Indramat as part of the TVM Power Supply Modules series. It is a cabinet-mounted unit that rectifies three-phase mains power and feeds the shared DC bus used by multiple drive controllers. By providing regulated intermediate voltage, it supports coordinated acceleration, deceleration, and controlled braking in industrial automation systems that depend on precise motion. The shared bus arrangement also allows connected axes to draw power from a common source during changing load conditions.

This module accepts an input of AC 220 V at 50 to 60 Hz. A line tolerance of +15/-10% allows operation in plants where supply stability fluctuates. Internally, it produces a nominal bus voltage of DC 300 V, which is distributed to connected inverters through a high-capacitance link. Continuous output capability is rated at 25 A, enabling simultaneous operation of several medium-power servo axes without noticeable voltage sag. Excess regenerative energy is absorbed by a bleeder resistor that can dissipate 0.45 kW continuously, preventing overvoltage during rapid load reversals. Configuration code 1 and a type current of 50 A correspond to the factory-installed fuse and conductor sizing for this version.

The control electronics are powered separately via AC 230 V or 400 V, which isolates logic functions from disturbances on the DC bus and supports flexible cabinet layouts. Thermal management relies on a built-in blower that directs airflow across heat-generating components during sustained operation. With a protection class of IP10, the housing is intended for enclosed panels where finger protection is adequate. Operation is permitted up to 1000 m above sea level. Above that height, output derating is required to maintain insulation clearance and thermal margin.