Rexroth TVM2

Rexroth TVM2

Product Introduction
The TVM2 is a servo power supply module from the Bosch Rexroth / Indramat TVM family. It converts three-phase AC mains voltage into a regulated DC bus for Rexroth servo inverter and servo drive modules. The TVM2 is commonly used in Rexroth modular drive systems, where the power supply module provides the DC link and the inverter modules generate controlled AC output for servo motors.

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Description

Rexroth TVM2

Technical Specifications

  • Brand: Bosch Rexroth / Indramat
  • Series: TVM servo power supply family
  • Model family: TVM2
  • Product type: Servo power supply module / DC bus supply
  • Input voltage: Typically 220 VAC or 380 VAC three-phase, depending on sub-model
  • Output: Regulated DC bus for servo inverter modules
  • Power rating: Varies by sub-model; common variants include 50 W-class auxiliary and higher-power DC bus versions
  • Mounting: Cabinet or drive rack mounting, depending on system configuration
  • Cooling: Air cooling, with natural or forced cooling depending on power level
  • Protection: Overvoltage, undervoltage, overload and short-circuit monitoring functions typical for this family

Functional Features

  • Provides stable DC bus voltage for Rexroth servo inverters.
  • Supports modular drive system architecture.
  • Integrates with Rexroth / Indramat servo controllers and inverter modules.
  • Includes mains and DC bus monitoring functions.
  • Designed for industrial servo applications requiring precise motion control.
  • Modular design allows combination with inverter and control modules.
  • Suitable for machines with multiple servo axes sharing a common DC bus.

Application Scenarios

  • Industrial servo drive systems.
  • CNC machine tools and machining centers.
  • Packaging machinery and printing machinery.
  • Textile machinery and plastic machinery.
  • Material handling and conveyor systems.
  • Robotics and automated assembly lines.
  • Presses, forming machines and special-purpose machines.

Performance Parameters

  • Input: Three-phase AC mains, typically 220 VAC or 380 VAC depending on model.
  • Output: Regulated DC bus for servo inverter modules.
  • Auxiliary output: Some TVM2 variants provide low-power auxiliary supply.
  • Monitoring: DC bus voltage monitoring and fault indication.
  • Exact rated current, power rating, DC bus voltage, efficiency, response time and protection thresholds depend on the exact sub-model and nameplate data.

Material Composition

  • Industrial-grade PCB assembly
  • Three-phase rectifier circuit
  • DC bus capacitors
  • Inrush current limiting circuit
  • Control and monitoring electronics
  • Metal heat sink or chassis structure
  • Terminal blocks and connector interfaces
  • Protective housing and status indicators

Structural Features

  • Modular industrial drive module design.
  • Front or side terminals for mains input and DC bus output.
  • Status indicators for mains, DC bus and fault conditions.
  • Mechanical mounting provisions for control cabinet or drive rack installation.
  • Designed for integration with other Rexroth / Indramat drive modules.
  • Exact dimensions, terminal layout and mounting holes depend on the specific sub-model.

Working Principle
The TVM2 receives three-phase AC mains power and rectifies it into DC bus voltage. The DC bus is then supplied to connected servo inverter modules, which convert it back into controlled AC output for servo motors. Internal monitoring circuits supervise mains presence, DC bus voltage and module status. When a fault is detected, the module signals an error and may disable the DC bus to protect the drive system.

Installation Requirements

  • Install in a ventilated control cabinet or drive rack.
  • Verify that mains voltage matches the module nameplate rating.
  • Use correctly sized power cables and protective devices.
  • Connect the protective earth terminal reliably.
  • Ensure sufficient clearance for heat dissipation.
  • Do not connect incompatible inverter modules without verification.
  • Check status indicators after power-up.
  • Refer to the official Rexroth / Indramat manual for wiring diagrams and parameter settings.

Precautions for Use

  • Do not operate the module beyond its rated voltage and current.
  • Investigate fault indications before resetting the drive system.
  • Disconnect mains power before wiring or maintenance.
  • Avoid use in environments with excessive dust, moisture or corrosive gases.
  • Keep ventilation paths clean to prevent overheating.
  • Replacement modules should match the original sub-model and firmware level.
  • Specific ratings, fault codes and commissioning procedures should follow the official Rexroth documentation.

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