Good Price Original New Power Supply Module REXROTH R911296878 HMV01.1E-W0030-A-07-NNNN Wonderfull for Industrial Control 

Rexroth IndraDrive Feeding Power Supply Unit

Ordering No.: R911296878 | Type Code: HMV01.1E-W0030-A-07-NNNN

The Rexroth IndraDrive HMV01.1E-W0030-A-07-NNNN (ordering number R911296878) is a feeding power supply unit used as the front-end power stage in IndraDrive cabinets. Its core job is to take three-phase AC mains and generate a stable DC bus (DC link) that supplies downstream IndraDrive drive controllers and axes. In other words, this module is where “cabinet power” becomes a controlled DC energy backbone for motion. 

In the HMV01 family, the “E” variant is the feeding (rectifier) supply rather than a regenerative infeed. Rexroth’s own HMV supply-unit description highlights that HMV01 units generate a DC bus voltage from the supply voltage, with variants across rectifier and rectifier/regeneration concepts. 
For many machines, the feeding variant is exactly the right choice: predictable, robust, and straightforward to integrate when braking energy is handled by braking resistors and the cabinet’s thermal design is sized accordingly.

Role in a Multi-Axis IndraDrive System

Modern automation cabinets often use a shared DC bus architecture. Instead of each axis building its own DC link, the supply unit forms a common DC bus and the axis controllers draw from it. This can simplify cabinet layout and improves system consistency when you scale the number of axes. A Rexroth IndraDrive “system” approach is commonly described as combining an HMV supply unit with drive controllers to create a modular multi-motor drive system. 

The HMV01.1E-W0030 class is typically used where the machine needs a mid-range power backbone: strong enough to run several servo axes, compact enough to fit standard control cabinets, and common enough to be service-friendly in the field.

Technical Overview Table

The table below summarizes widely published technical points for HMV01.1E-W0030-A-07-NNNN. Values can vary slightly by listing format (for example, current values may be shown at specific mains voltages), so treat this as an engineering snapshot and confirm final acceptance values with the nameplate and the official Rexroth documentation used in your project.

Integration Notes That Engineers Actually Care About

1) Mains connection and grounding are not “optional details”

Rexroth’s HMV01 instruction manual is blunt about protective earth and cabinet grounding practices, including minimum grounding cross sections (for certain IndraDrive controllers and HMV supply units) and continuity checks from mains to motors. 
This matters because a supply unit is both a power converter and a noise source: correct PE bonding and cabinet grounding reduce fault risk and help EMC behavior stay inside the fence.

2) DC bus behavior drives thermal decisions

A feeding supply unit will support the DC link while axes move, but braking energy still has to go somewhere. In many systems that means braking resistors and cabinet airflow. The published braking resistor capability figures (permanent and peak) give a useful starting point when reviewing deceleration duty cycles and thermal headroom. 

3) Shared DC bus architecture rewards good cabinet layout

Shared bus systems can be efficient and clean, but only if the cabinet is laid out like an electrical system rather than a parts museum. The HMV01 documentation includes installation and wiring guidance (terminal usage, torque, cable-lug recommendations), and those “mundane” details directly influence reliability and service outcomes. 

Typical Use Cases

This model is commonly selected in:

• Packaging and assembly machines with multiple servo axes

• Indexing and handling systems where power demand is “bursty” rather than constant

• Retrofit projects where a known IndraDrive power supply class is needed to restore system integrity quickly

In these applications, the practical advantage of the HMV01.1E-W0030 class is not a flashy feature; it’s the combination of standardized DC bus generation, predictable cabinet integration, and broad familiarity among drive technicians working with IndraDrive hardware. 

Service and Maintenance Perspective

For procurement and maintenance teams, the most common failure modes around supply units are rarely mysterious. They usually come down to fundamentals:

• Incorrect mains connection or phase issues

• Weak or inconsistent control cabinet grounding

• Thermal stress from insufficient airflow or resistor overload

• Aging DC link components in high-duty environments

While troubleshooting should follow the official diagnostic workflow for the full drive system, the HMV01 manual emphasizes installation discipline (strain relief, torque correctness, grounding continuity) because these reduce the probability of both nuisance faults and genuine damage. 

Identification and Ordering Clarity

Because Rexroth hardware often exists in multiple ordering numbers tied to the same type code, it’s good practice to identify the unit by both:

• Ordering number: R911296878

• Type code: HMV01.1E-W0030-A-07-NNNN