Product Description:

The TVM 2.1-050-220/300-115 belongs to the TVM Power Supply Modules series from Bosch Rexroth Indramat. It functions as the regulated power backbone for drive controllers, converting incoming AC power into a DC bus and several low-voltage rails so motion axes receive consistent energy during industrial automation tasks. The module also provides auxiliary power for control and feedback circuits, allowing multiple connected components to operate from one centralized supply source. This arrangement supports stable operation during normal axis movement and during short changes in load demand.

This unit accepts a 50–60 Hz supply at AC 220 V, and the input can deviate by +15 %/-10 % without loss of regulation. Internally, it maintains a nominal bus voltage of DC 300 V. Under steady load, the module delivers a continuous output of 25 A, while short-term demand can be met with a 150 A surge for 300 ms to support rapid acceleration. A 24 V logic rail supplies 8 A, and the ±15 V monitor rails provide 0.9 A on the positive side and 1.0 A on the negative side for encoder and control electronics. Configuration code 1 and Series 2 identify the unit version. The module has IP10 protection, its ventilation fans draw 30 W, and the auxiliary outputs have a voltage tolerance of ±15 %. The nominal current rating is 50 A for the DC bus terminal conductors.

The power section is dimensioned for a system throughput of 15 kW, while regenerative energy from the drives is absorbed by an integrated bleeder that can dissipate 0.45 kW continuously. The energy storage and dump circuitry can handle up to 14 kWs of feedback so braking events do not raise the bus voltage too high. During full utilization, the assembly releases 580 W as heat, which must be removed by the cabinet cooling system. Overall mass is kept to 15 kg, allowing cabinet installation without additional supports in many standard panels. The module is intended for shared DC-bus systems in which several axes return braking energy to the same supply source.