R911297424 (HMV01.1E-W0075)

HMV IndraDrive Supply Units

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The R911297424 (HMV01.1E-W0075) is an HMV Series Power Supply Unit engineered for use within IndraDrive motion control systems. It features a 75 kW rated output and operates with a feeded power supply configuration. The unit maintains a DC bus voltage of 700 V independent of supply fluctuations, utilizing Smart Energy Mode for consistent performance. Internal cooling is achieved through an integrated blower, and the housing meets IP20 protection standards. The device is equipped with reverse polarity and short circuit protection, and is designed for single-line operation.

Technical Specifications

Product Type
Bosch Rexroth IndraDrive

Safety Technology
Certified

System Type
Modular

Rated Output
75 kW

Power Supply Type
Feeded

Feature
Built-in Smart Energy Mode

DC Bus Voltage
Constant 700V

Lines
1

Cooling Mode
Air, internal (through integrated blower)

Protection Mode
IP 20

Peak Load Prevention
Yes

Mains Connection Line Loss
Reduced

Grid Compatibility
Improved

Resistance to Voltage Fluctuations
High

Energy Management
Optimal

Frequently Asked Questions

What does the nominal DC bus voltage of 700 V imply for motor compatibility and safety?

It means only motors and inverters rated for up to about 700 VDC (or more) can be driven directly without additional step-up/down conversion. Also, insulation, clearances, and safety devices must be designed to safely handle this voltage to avoid arcing or breakdown.

What are the thermal dissipation and heat load considerations under full 30 kW output?

A considerable portion of input power will be lost as heat in rectification, switching, and conduction losses—expect several kilowatts of waste heat. The cooling system must be sized so that ambient temperatures up to +40 °C don’t push component junction temperatures above safe limits (as per Bosch’s manual).

What is the effect of frequency tolerance (48-62 Hz) on unit performance and power output?

Operating outside nominal 50-60 Hz will slightly change the input current, and possibly derate performance, because rectifier and intermediate circuit loads depend on the mains frequency. Within 48-62 Hz Bosch allows that tolerance without needing to recalibrate, but beyond that efficiency and cooling margin suffer.

How does the built-in capacitance (2 × 470 nF to housing) influence EMC compliance and system layout?

These capacitors provide a reference/return path to reduce electrical noise and meet EMC standards; however, they also create leakage currents which must be grounded properly. Cabling layout and chassis bonding are important to avoid ground loops or unexpected interference.

For what industrial applications is the HMV01.1E-W0030-A-07-NNNN especially well suited, and where might it be overkill?

It is well suited for multi-axis robotics, CNC machining centers, or large automation lines where a stable high DC bus is shared among drives. It might be overkill for single small axis or low kilowatt tasks, where lower power or simpler supply units would be more cost-effective.

Common Misspellings

Internal Product Review

The HMV01.1E-W0075 is a Bosch Rexroth Indramat HMV IndraDrive supply unit. It uses internal-air cooling with an integrated blower, delivers 75 kW at 700 V DC, and adds IP20 protection with reverse-polarity/short-circuit safeguards and Smart Energy Mode. This drive is used in machine tools, packaging, printing, assembly and robotics cells.