Rexroth HMV01.1R-W0018-A-07-FNN1 18 kW Supply Unit

Description

Key Technical Specifications

*Values are taken from Rexroth HMV01.1R-W0018-A-07 family documentation or corroborating secondary sources; verify the exact FNN1 configuration against the unit’s nameplate and project-planning documentation. Rexroth documentation specifies 750 V DC regulated bus voltage, 18 kW continuous DC-bus power, 45 kW maximum DC-bus power, and approximately 0.70 mF DC-bus capacitance for the W0018-A-07 family.

The HMV unit is a supply module, not a servo inverter. It establishes the common DC bus for compatible HMS/HMD inverter modules in an IndraDrive M system.

Product Introduction

The Bosch Rexroth HMV01.1R-W0018-A-07-FNN1 is an 18 kW regenerative supply unit for the IndraDrive M modular servo-drive architecture. It converts three-phase AC mains into the controlled high-voltage DC bus used by connected drive modules. The HMV01.1R-W0018 family has a 700 V DC nominal bus and 750 V DC regulated bus level.

Its regenerative supply architecture allows energy management during servo deceleration, while the integrated blower provides forced internal cooling. This module must be matched to the existing HMV/HMS/HMD system configuration; a generic DC power supply or individual servo inverter is not a functional substitute.

HMV01.1R-W0018-A-07-FNN1

HMV01.1R-W0018-A-07-FNN1

Installation & Configuration Guide

Stage 1 — Pre-Installation Preparation

Estimated time: 30–45 minutes

1. Confirm the complete marking HMV01.1R-W0018-A-07-FNN1 character by character.
2. Photograph the existing nameplate, terminals, control connectors, and cabinet arrangement.
3. Record the connected HMS/HMD modules and DC-bus configuration.
4. Verify the three-phase mains rating and upstream protection.
5. Obtain the applicable Rexroth IndraDrive project-planning and commissioning documentation.
6. Back up drive parameters and machine configuration before replacement.
7. Allow adequate cooling and cabinet access around the HMV module.

⚠️ The DC bus can remain at hazardous voltage after AC power is removed. Follow the Rexroth discharge-time and voltage-verification procedure before touching DC-bus connections.

Stage 2 — Removing the Existing Supply Unit

Estimated time: 30–45 minutes

1. Shut down the machine using the approved machine-stop sequence.
2. Apply LOTO to the incoming three-phase supply.
3. Wait the specified discharge period.
4. Measure the DC-bus voltage with appropriately rated test equipment.
5. Verify that the DC bus has reached the safe voltage specified by the Rexroth documentation.
6. Label all AC input, DC-bus, braking, control, and grounding connections.
7. Disconnect the electrical connections.
8. Remove the HMV unit from the cabinet.

⚠️ Never treat removal of the 380–480 V AC input as proof that the 700–750 V DC bus is de-energized.

Stage 3 — Installing the New Module

Estimated time: 30–60 minutes

1. Compare the replacement’s complete type code with the removed unit.
2. Verify the mechanical arrangement and cabinet mounting position.
3. Install the HMV supply unit securely.
4. Reconnect protective grounding first where required by the installation procedure.
5. Connect the three-phase AC input.
6. Connect the DC-bus conductors with correct polarity and approved torque.
7. Reconnect control and diagnostic connections.
8. Verify braking-system connections and configuration.
9. Check cooling airflow and ensure the integrated blower path is unobstructed.

⚠️ Do not substitute an FNN1, FNN2, or NNNN variant solely because the basic -A-07 rating appears identical. Confirm the complete option code.

Stage 4 — Power-On & Testing

Estimated time: 45–90 minutes

1. Inspect all power connections before energizing.
2. Verify phase sequence and incoming voltage.
3. Energize the system according to the Rexroth commissioning procedure.
4. Monitor the HMV diagnostic status.
5. Verify establishment of the DC bus.
6. Check connected HMS/HMD modules for diagnostic faults.
7. Confirm the DC-bus voltage remains within the expected operating range.
8. Test regenerative operation under controlled machine conditions.
9. Check blower operation and cabinet temperature.
10. Record diagnostic codes and final drive parameters.

⚠️ Do not run a high-inertia axis at production speed immediately after supply-module replacement. Validate the DC bus, regeneration behavior, and drive diagnostics first.

FAQ

1. What i .1R–FNN1?

It is an 18 kW HMV regenerative supply unit for Bosch Rexroth IndraDrive M modular servo systems. It supplies the common DC bus used by compatible servo inverter modules.

2. What is the DC-bus voltage?

.1R- family has a 700 V DC nominal DC bus and a 750 V DC regulated DC-bus voltage. Rexroth documentation specifies 750 the family.

3. What is the rated power?

The version is rated for 18 kW continuous DC-bus power under the specified operating conditions. Rexroth documentation also lists a maximum DC-bus power of 45 kW for the specified short-duration condition.

4. Is this an individual servo drive?

No. The HMV is the supply unit for the modular DC-bus architecture. HMS/HMD modules perform the individual motor-axis inverter function. Using an HMS or HMD module as a direct replacement for the HMV is therefore not appropriate.

5. What AC input does the version use?

Secondary documentation identifies a three-phase 380–480 V AC input and approximately 26 A at 400 V AC. These values should be checked against the exact system documentation and nameplate before installation.

6. What is the significance of the suffix?

The suffix is part of the complete Rexroth type code and should not be ignored during procurement. Publicly indexed documentation clearly distinguishes different HMV option variants, including NNNN and FNN2. The exact configuration is less consistently documented in secondary databases, so the complete nameplate and original machine documentation should control the replacement decision.

7. What should I verify before purchasing a replacement?

Verify the complete -FNN1 type code, nameplate material number, hardware revision, input rating, DC-bus configuration, connected HMS/HMD modules, braking arrangement, and cabinet cooling. For this particular suffix, requiring a clear nameplate photograph before shipment is especially important because public secondary databases show inconsistent material-number assignments.