Rexroth IndraDrive Power Supply Unit
R922002789 | Type Code: HMV01.1E-W0075-A-07-FCN1
The Rexroth IndraDrive HMV01.1E-W0075-A-07-FCN1 (ordering number R922002789) is a high-power supply unit (power supply module / mains infeed) designed to build and stabilize the DC bus that feeds an IndraDrive drive system. In a modern servo or spindle cabinet, this module is the “front end” that converts three-phase AC mains into a controlled DC link, providing the energy backbone that multiple drive controllers can share.
Rexroth HMV01 supply units are built around the idea of a common DC bus: rather than each axis having an isolated power conversion stage, the cabinet can centralize energy conversion, improve cabinet organization, and simplify system-level energy management. In the IndraDrive ecosystem, HMV supply units generate the DC bus voltage from the supply voltage, and the series exists in rectifier and rectifier/regeneration variants depending on the energy-flow strategy you choose.
For machine builders and maintenance teams, the practical value is straightforward: when you need a robust, industrial-grade DC bus source that matches the IndraDrive architecture, the HMV01.1E class is a common and field-proven option—especially in multi-axis systems where shared bus performance and cabinet repeatability matter.
What This Module Does in a Drive Cabinet
In a typical IndraDrive layout, the HMV01.1E supply unit:
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Accepts three-phase AC mains and creates a high-voltage DC bus for downstream drive controllers.
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Provides the power foundation for multiple axes on a common DC link, supporting energy sharing between accelerating and decelerating axes (system behavior depends on the overall cabinet design and braking/regeneration concept).
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Uses internal air cooling with an integrated blower (typical for this type code), supporting continuous cabinet operation when installed with proper airflow management.
Key Data Summary (Quick Reference)
The table below summarizes commonly listed technical and mechanical characteristics for HMV01.1E-W0075-A-07-FCN1. Always verify critical ratings against the unit nameplate and the official project documentation for your machine, since cabinet conditions and variants can influence permissible operation.
| Item |
Value / Description |
| Manufacturer / Platform |
Rexroth IndraDrive supply unit (HMV series) |
| Ordering Number |
R922002789 (as provided) |
| Type Code |
HMV01.1E-W0075-A-07-FCN1 |
| Rated Output Power Class |
75 kW (commonly listed for W0075 variant) |
| DC Bus Nominal Voltage |
700 VDC nominal |
| DC Bus Output Range (typical listing) |
435 to 710 VDC |
| Input Supply (typical listing) |
3-phase 380 to 480 VAC, 50/60 Hz |
| Input / Output Current (typical listing) |
128 A input, 173 A output |
| Cooling |
Internal air cooling, integrated blower |
| Protection Class (typical listing) |
IP20 |
| Dimensions (H×W×D, typical listing) |
450 × 250 × 262 mm |
| Net Weight (typical listing) |
35 kg |
| Operating Temperature (typical listing) |
0 to 40 °C |
| Noise (typical listing) |
Up to ~75 dB(A) |
Typical Applications
This type of IndraDrive supply unit is commonly selected in environments such as:
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Multi-axis servo systems in packaging, converting, and assembly machines
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Machine tool systems (spindle and feed axes) where DC bus stability supports dynamic load profiles
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Printing and web-handling lines where repeated acceleration cycles benefit from a centralized DC link concept (system design dependent)
In these applications, the cabinet designer often cares less about a single axis and more about the whole power ecosystem: how the bus behaves under load steps, how heat is managed, and how serviceable the power stage is during downtime.
Installation and Safety Notes That Actually Matter
High-power DC bus equipment is not “just another module.” Two safety themes show up repeatedly in Rexroth documentation for this class of equipment:
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Energy storage and discharge time: after power-off, internal capacitors may remain charged. Rexroth documentation for IndraDrive supply units emphasizes waiting time before access and verifying safe voltage before work.
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Proper grounding: operation is intended only with a permanently installed protective earth / equipment grounding conductor; documentation highlights grounding requirements and leakage-current considerations for these systems.
From a commissioning perspective, the best practice is boring but effective: treat the DC bus like it is live until proven otherwise, lock out power, wait the required discharge time, and measure before touching conductors.
Selection and Integration Tips (Practical, Not Marketing)
When specifying or replacing an HMV01.1E-W0075-A-07-FCN1, focus on a few compatibility anchors:
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Match the full type code (including suffix) to ensure the same functional variant and interface expectations.
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Confirm the mains voltage range and cabinet environment (temperature, airflow, altitude if applicable).
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Make sure downstream drive controllers and DC bus architecture are aligned with a 700 VDC nominal bus (typical for this unit) and the expected peak/regenerative behavior of your machine.
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For maintenance: verify the mechanical envelope and weight before planning panel work or shipping, since this is a substantial module in both size and mass.
Conclusion
The R922002789 Rexroth HMV01.1E-W0075-A-07-FCN1 is best thought of as a cabinet-level power foundation for IndraDrive systems: a three-phase infeed supply unit that creates a high-voltage DC bus (commonly cited as 700 VDC nominal) and supports the power demands of multi-axis industrial automation. Its commonly listed 75 kW power class, forced-air cooling with an integrated blower, and compact industrial form factor make it a typical candidate for demanding machinery where uptime, repeatability, and DC-bus performance matter.
