TVM 1.2-050-220/300-W1

The Bosch Rexroth Indramat TVM 1.2-050-220/300-W1 power supply module, part of the TVM Power Supply Modules series, delivers robust performance for modular AC servo drives. Rated for an Input Voltage of AC 220V and providing a Bus Voltage of DC 300, this unit handles a Type Current of 50 A in its Configuration 2 design. The primary function of the TVM 1.2-050-220/300-W1 is to convert and regulate incoming AC power into a stable DC bus voltage for connected servo drives, ensuring consistent energy delivery and rapid response in machine tool applications. Key features include a dedicated X9 connector for both DC bus and AC power input and dynamic braking capability to safely terminate power when required.

In terms of technical specifications, the TVM 1.2-050-220/300-W1 supports a line voltage range of 3 × 220 VAC ±15% or 3 × 230 VAC +10%/–15%, ensuring compatibility with standard industrial power supplies. The module can be fitted with an auxiliary bleeder module or one or more auxiliary capacitance modules, each capable of storing approximately 30 W, thereby enhancing regenerative energy management. The integrated bleeder resistor absorbs regenerated energy when servo drives operate as generators, protecting the DC bus from overvoltage conditions. The RESET button, positioned directly above the diagnostic display, allows quick fault recovery, while the module’s cumulative maximum continuous mechanical output capacity reaches 4.1 kW across up to six connected servo drives.

Additional features focus on compatibility, durability, and operational efficiency. The TVM 1.2-050-220/300-W1 is compatible with Bosch Rexroth Indramat modular AC servo drives and employs a wire-ribbon cable to supply signal voltage to the drives. Its Bb contact remains open in the event of a drive or signal voltage bus fault, and the protective earth rail mounted on the front panel ensures central grounding for each drive. The device’s monitoring capabilities include bleeder resistor load oversight, while dynamic braking enhances safety during emergency stops. In industrial applications, this power supply module offers reliable energy reuse, simplified integration, and minimal downtime, making it an ideal choice for high-performance automation environments.