Product Description:

The TVM 2.1-050-W1/220/380V is a power supply module produced by Bosch Rexroth Indramat for the TVM Power Supply Modules series. It converts factory mains into the stabilized DC link required by Indramat servo drives, allowing coordinated motion axes to share a common supply. The unit is configuration 1 in Series 2 and is classified as a power supply module. In automated cells, it connects to the drive rack, where its internal bleeder and blower manage regenerative energy and heat buildup.

Incoming power reaches the module through a control input rated at 220/380 V AC, while a separate nominal input of 220 V AC supplies the control circuits. After rectification and smoothing, the supply provides a DC bus of 300 V DC. It can deliver a continuous output of 25 A, and the type current rating is 50 A for transient events. Short-duration demand is handled by a 150 A peak output that can be maintained for 300 ms, supporting rapid axis acceleration. Overall power handling is rated at 15 kW, which suits medium-size multi-axis machines. The built-in blower uses 30 W to maintain safe temperatures. The module also provides ±15 V monitoring rails, with 1.0 A available at -15 V_M and 0.9 A at +15 V_M. An auxiliary 24 V_L bus supplies 8 A for valve or control contactors.

Energy returned from motor braking is absorbed by an internal bleeder that tolerates 10 kW peaks and dissipates 0.45 kW continuously. The module can produce up to 580 W of heat loss inside the cabinet during operation. The bleeder and capacitors can store as much as 14 kWs of feedback energy, which helps prevent DC bus overvoltage during frequent decelerations. Ventilation is provided by the same built-in blower used for the power stage, so no external cooling is required. The module weighs 15 kg, which supports rigid panel mounting.