Product Description:

The TVM 2.2-50-220/300-W1/220/380V is a power supply module manufactured by Bosch Rexroth Indramat for the TVM Power Supply Modules series. Intended for multi-axis drive systems, it delivers regulated bus power to connected servo inverters and low-voltage rails for control electronics. By supplying the common DC bus and auxiliary control voltages from one housing, it supports coordinated servo systems that rely on a stable shared power source. The unit uses configuration 2 and weighs 15 kg, allowing installation in standard control enclosures without special support hardware.

Its primary input accepts AC 220 V (±15%) from the plant mains or a 220/380 V controller supply and converts that energy to a DC 300 V (±15%) link voltage for the drive bus. During continuous operation, the module supplies a rated current of 50 A, and it can withstand a 150 A surge for 300 ms during brief acceleration events. A separate 24 V rail delivers 8 A to external sensors and PLC logic, while dedicated ±15 V outputs provide 1.3 A on the positive side and 1.0 A on the negative side for analog interface cards. This separation of bus and auxiliary outputs allows the main drive power and control circuits to operate from the same module without requiring separate external supplies. The internal converter is sized for 15 kW, and forced-air ventilation draws 30 W from an auxiliary 220 V fan line.

Excess regenerative energy is handled by an onboard bleeder resistor rated at 450 W continuously, with a short-term peak capability of 10 kW during braking. Overall heat dissipation under full electrical loading is limited to 580 W, which helps keep cabinet thermal loading predictable. The design can absorb up to 14 kWs of feedback energy before cutout, reducing the risk of overvoltage when motors return energy to the DC bus. This operating profile is suited to axes that generate large regenerative bursts during deceleration or rapid load changes.