Compact New Power Supply Module Rexroth R911309080 HMV02.1R-W0015-A-07-NNNN For Industrial Servo Applications

The REXROTH R911309080 HMV02.1R-W0015-A-07-NNNN is a compact regenerative power supply unit designed for use in Rexroth IndraDrive M modular drive systems. It is used to provide stable DC bus power for connected drive controllers and to support controlled energy management in industrial servo applications. This model is suitable for automation equipment that requires reliable power conversion, regenerative braking capability, cabinet-mounted installation, and coordinated operation between multiple servo axes.

The complete product identification is R911309080 for the order number and HMV02.1R-W0015-A-07-NNNN for the model code. Both references should be kept together when purchasing, replacing, or quoting this unit. In industrial drive systems, similar-looking HMV supply units may have different power ratings, cooling arrangements, regenerative functions, voltage classes, and connection details. Using only a partial model code can lead to a wrong replacement choice.

This model is commonly listed as a 15 kW HMV series power supply with 380–480 V input, 23 A reference current, and DC 750 V power output in reseller technical descriptions. Wake Industrial also identifies the unit as a regenerative HMV supply unit with rated regenerative output power of 15 kW, DC 700 V nominal voltage, and internal air blower cooling. These specifications make the HMV02.1R-W0015-A-07-NNNN suitable for moderate-power servo systems where regenerative energy handling and stable DC bus supply are required.

The main function of the HMV02.1R-W0015-A-07-NNNN is to supply power to a common DC bus in a modular servo drive system. In a typical industrial machine, one supply unit feeds multiple drive controllers, and those controllers operate servo motors for positioning, feeding, cutting, forming, lifting, indexing, or synchronized motion. The supply unit therefore plays a central role in the electrical architecture of the drive cabinet. If the supply unit fails or is incorrectly matched, the entire drive group may stop even if the individual motors and axis controllers are still serviceable.

A key feature of this model is its regenerative supply design. During braking or deceleration, servo motors can return energy to the DC bus. In simpler drive systems, this energy may be dissipated as heat through braking resistors. A regenerative supply unit is designed to handle returned energy more efficiently within the drive system architecture. This is useful in machines with frequent acceleration and deceleration cycles, repeated start-stop motion, vertical axes, high-inertia loads, or synchronized multi-axis movement.

The 15 kW power class gives this unit a practical position in medium-size automation systems. It is not as large as high-power HMV supply modules, but it is strong enough for many industrial applications where compact cabinet layout and dependable drive power are needed. Typical equipment may include packaging machinery, printing systems, converting lines, CNC auxiliary axes, handling machines, automated assembly stations, textile machinery, and production lines using multiple servo-controlled movements.

The DC 700 V nominal class is important when checking compatibility with existing IndraDrive components. The supply unit, drive controllers, motor modules, line connection, DC bus system, and braking configuration must all match the machine design. A replacement should never be selected only because the housing looks similar. The full model code HMV02.1R-W0015-A-07-NNNN should be compared with the installed unit, the machine electrical drawings, and the existing drive system documentation before purchase.

Cooling is another important consideration. The HMV02.1R-W0015-A-07-NNNN uses internal air blower cooling, which means the unit depends on correct airflow and cabinet ventilation. Poor ventilation, blocked air paths, dust buildup, failed cabinet fans, or high ambient temperature can reduce service life and increase the chance of drive faults. For long-term reliability, the drive cabinet should be kept clean, properly ventilated, and free from excessive heat, conductive dust, moisture, and oil mist.

The approximate bare product weight should be stated as 9.2–10.0 kg. Radwell lists the product weight as 22.05 lbs, while Classic Automation lists 20 lbs 4.6 oz / 9.2 kg, and Maxodeals lists 9.26 kg. For international shipping, however, the packed weight can be significantly higher, which reflects the effect of packaging, carton or wooden case, cushioning material, and freight handling requirements. For quotation, logistics, and export planning, the packed dimensions and packed weight should be confirmed after packaging.

From a service perspective, this unit should be treated as a critical spare part. Maintenance checks usually include inspection of terminals, green connector blocks, fan condition, warning labels, mechanical damage, heat discoloration, contamination, and fault history in the connected drive system. Before removing an old unit, technicians should photograph all wiring and record the exact type code and order number. This reduces the risk of wiring mistakes and makes replacement faster during urgent machine downtime.

For procurement, buyers may find this model as new old stock, used, tested, refurbished, or repair exchange stock. The condition should be clearly confirmed before purchase. For a used or refurbished unit, the supplier should state whether the unit has been powered on, function-tested, cleaned, and inspected. Warranty terms, physical completeness, connector condition, and packaging method should also be checked. This is especially important for power electronics because storage condition and previous operating environment can affect long-term reliability.

In summary, the REXROTH R911309080 HMV02.1R-W0015-A-07-NNNN is a 15 kW regenerative IndraDrive M supply unit for modular servo drive systems. It provides DC bus power, supports regenerative energy handling, and is suitable for medium-power industrial automation equipment. With its cabinet-mounted design, internal air blower cooling, DC 700 V class operation, and approximate product weight of 9.2–10.0 kg, it is a practical replacement or spare unit for compatible Rexroth drive systems. Before installation, users should verify the full order number, complete model code, voltage class, cooling condition, connected drive compatibility, and actual machine wiring.