Product Description:

The TVM 2.1-50W1-220/330 is a regulated power supply module engineered by Bosch Rexroth Indramat for use in the TVM Power Supply Modules series, and it is a series 2 design. The unit draws plant AC mains and feeds a shared DC bus that services multiple servo drives, bleeder resistors, and logic rails. Within an industrial automation cabinet, it anchors the energy infrastructure by providing the voltage stability and transient absorption required for coordinated axis control, braking energy return, and auxiliary logic power in material-handling or machining cells.

Its input side accepts 220 VAC, a standard factory supply level, and rectifies it to a steady bus of 300 VDC that is distributed to connected inverters. Under nominal loading, the module can deliver a continuous current of 50 A, while the power stage can reach a peak of 150 A for 300 milliseconds during rapid acceleration events. The design supports a maximum regenerated energy level of 14 kWs, dumping excess through an internal bleeder rated at 0.45 kW to protect the link capacitors. Overall conversion capability is 15 kW, and the 30 W fan mounted on the front panel provides forced ventilation. Configuration number 1 indicates the presence of auxiliaries and monitoring circuitry.

The module carries several low-voltage rails for control electronics. Its auxiliary 24 V output can source 8 A, and ripple on this rail is limited to 10%. Separate ±15 V references support analog interface cards; the positive branch supplies 0.9 A while the negative branch provides 1.0 A, and both have ripple limited to 2%. When fully loaded, the assembly releases up to 580 W of heat through conduction to the cabinet frame and with help from the built-in fan. Total mass is 15 kg, allowing straightforward panel mounting within the drive rack.