Reliable New Genuine New Power Supply Module REXROTH R911312757 HMV01.1R-W0120-A-07-NNNN Optimize Performance for Industrial Application

Bosch Rexroth R911312757 – HMV01.1R-W0120-A-07-NNNN Power Supply Module
High-performance regenerative supply for IndraDrive M systems

The Bosch Rexroth R911312757 HMV01.1R-W0120-A-07-NNNN is a regenerative power supply module designed for the IndraDrive M system family. It provides a stable DC bus for multiple drive controllers, while returning braking energy back to the mains instead of wasting it in braking resistors. In high-power motion systems, this unit is effectively the “heart” of the drive cabinet: it feeds energy into the DC bus, manages power quality, and protects the installation from overloads and poor mains conditions. 

Working with a nominal AC input of 380–480 V, a DC bus voltage around 700–750 VDC, and a continuous power rating of 120 kW (with power choke), the HMV01.1R-W0120-A-07-NNNN is suitable for demanding multi-axis systems such as presses, plastics machinery, packaging lines, large conveyors and material-handling systems. 

1. Key technical data (quick reference table)

This table is for quick identification and selection; always refer to the official Rexroth documentation for final design values.

2. Function in the IndraDrive system

The HMV01.1R-W0120-A-07-NNNN is not a simple single-axis drive. It is a central supply unit:

• It connects directly to the three-phase mains.

• It rectifies and conditions the power.

• It feeds a common DC bus that can supply multiple IndraDrive power sections (HMS01, HMD01, etc.). 

• It provides regenerative capability, allowing excess kinetic energy to be pushed back into the mains during braking or deceleration phases.

In a typical multi-axis cabinet, you will see the HMV supply unit at the left, the main choke in the mains line, and then several IndraDrive inverters to the right feeding motors and actuators. The result is a compact, energy-efficient drive package.

3. Regenerative design and energy efficiency

The “R” in HMV01.1R stands for regenerative. Instead of burning braking energy in external resistors, the module can return it to the mains supply when local regulations and installation design allow this.

Key benefits of the regenerative design:

• Reduced heat load in the cabinet
  Less energy is dissipated as heat, which can simplify panel cooling and extend component life.

• Lower operating cost
  In applications with frequent braking cycles – such as high-speed indexing, hoists, test stands or winders – regeneration can provide visible savings over the life of the machine.

• Improved power quality
  When used with the appropriate mains choke (e.g. HNL01.1R-0300-C0180-A-480), the power factor can reach approximately 0.99, reducing harmonics and stress on the supply network. 

• High power density
  A continuous power rating of around 120 kW in a relatively compact cabinet-mounting package makes it suitable where space is expensive and power demand is high. 

4. Cooling, installation and mechanical design

The HMV01.1R-W0120-A-07-NNNN uses internal forced-air cooling via an integrated blower. To protect the electronics and guarantee the full power rating, Rexroth specifies minimum ventilation gaps above and below the unit and continuous fan operation. 

Typical installation characteristics:

• Cabinet-mounting module with front-accessible connections.

• Approximate dimensions in the range of 440 mm height, 350 mm width, and 260 mm depth (depending on variant and documentation). 

• Weight of roughly 34–35 kg, which means safe mounting procedures and adequate panel support are mandatory. 

• Connection points for:

  • Mains input and external mains contactor feedback/control (e.g. terminals X33, X34 as described in the IndraDrive supply-unit manual). 

  • DC bus connections towards the driven axes.

  • Control circuits and 24 V auxiliary supply.

  • Fan supply and synchronization inputs for pre-charging and mains monitoring.

Thanks to the modular structure of the IndraDrive family, cabinet builders can combine several HMV and drive modules to match specific machine requirements without redesigning the entire power system.

5. Electrical performance and operating limits

From an electrical design perspective, the R911312757 HMV01.1R-W0120-A-07-NNNN offers:

• Mains side

  • Three-phase 380–480 VAC, 50/60 Hz.

  • Mains currents up to approximately 181 A at full load. 

  • Use with a dedicated mains choke to achieve high power factor and limit harmonics.

• DC bus side

  • DC bus voltage around 700 VDC nominal and up to 750 VDC output. 

  • DC bus capacitance of about 4.95 mF, helping to stabilize voltage under dynamic load changes. 

• Control side

  • Control supply 24 VDC ±5 %, maximum inrush current around 13 A at 24 V. 

  • Option to raise control voltage to 26 V for long holding-brake cable runs, maintaining reliable brake control in distant motors.

• Thermal and environmental

  • Standard ambient temperature 0…+40 °C for full performance; at higher temperatures, derating must be considered to avoid data loss or premature ageing. 

  • Typical average sound pressure level around 80 dB(A) due to the integrated fan – relevant for acoustic design of control rooms and test cells. 

All these parameters make the module suitable for demanding industrial environments where uptime and power stability are critical.

6. Application examples

Typical application areas for the Rexroth HMV01.1R-W0120-A-07-NNNN include:

• Plastics and rubber machinery – injection moulding machines, extruders, and blow-moulding lines, where multiple electric axes share a common DC bus.

• Metals and forming – presses, rolling mills, and shears that demand high peak power and heavy regenerative braking.

• Packaging and printing – high-speed, multi-axis systems with frequent accelerations and decelerations.

• Material handling and intralogistics – conveyors, stacker cranes, automated warehouses and shuttle systems.

• Test benches and dynamometers – where bidirectional energy flow and precise control of power are essential.

In all of these sectors, the combination of 120 kW continuous regenerative power, a robust DC bus, and tight integration with IndraDrive inverters makes this unit a reliable backbone for the drive system.

7. Selection and replacement notes

When selecting or replacing a supply unit with R911312757 HMV01.1R-W0120-A-07-NNNN, engineers generally check:

• Total continuous and peak power demand of all connected axes.

• Mains voltage and network configuration (corner-grounded delta, TN-system, etc.).

• Availability and sizing of the matching mains choke and line filter.

• Cabinet dimensions, cooling airflow and ambient conditions.

• System communication and safety concept as defined in the IndraDrive system documentation.

For retrofit projects, it is important to match both the type code and the part number (R911312757) to ensure mechanical, electrical and firmware compatibility with existing drives and accessories. Detailed wiring and parameterization should always follow the official Rexroth IndraDrive HMV01 instruction manual. 

8. Summary

The Bosch Rexroth R911312757 HMV01.1R-W0120-A-07-NNNN is a high-power, regenerative IndraDrive M supply unit engineered for modern multi-axis motion systems. With 380–480 VAC input, a 700–750 VDC bus, up to 120 kW continuous power and integrated energy recovery, it helps machine builders deliver compact, efficient and future-proof industrial equipment. When properly integrated with HMS01 / HMD01 drives, mains chokes and filters, it forms a robust energy backbone for demanding applications in plastics, metals, packaging and intralogistics.