Bosch Rexroth HCS02.1E-W0028-A-03-NNNN 4 kW Drive

Description

Key Technical Specifications

The 4 kW motor rating, 12 A continuous current, 28.3 A maximum current, 200–500 V three-phase supply range, IP20 enclosure, and dimensions are documented across available IndraDrive technical references.

Specification caution: Some reseller pages report slightly different dimensional conventions or current values. For replacement work, use the Bosch Rexroth product documentation and the nameplate on the installed unit as the final authority rather than mixing specifications from different HCS02 variants.

Product Introduction

The Bosch Rexroth HCS02.1E-W0028-A-03-NNNN is an IndraDrive C HCS02 compact converter for industrial motion-control applications. Its R911298374 configuration provides a 28.3 A maximum current rating, 12 A continuous current, and a typical 4 kW motor rating.

The unit accepts 200–500 V AC three-phase mains and uses internal air cooling with an integrated blower. The IP20 enclosure means it belongs inside a suitable control cabinet rather than being treated as a standalone field device.

HCS02.1E-W0028-A-03-NNNN

HCS02.1E-W0028-A-03-NNNN

Installation & Configuration Guide

Stage 1: Pre-Installation Preparation — 10–15 minutes

⚠️ Safety First: This is a high-voltage drive component. Disconnect the mains supply, apply lockout/tagout, and verify absence of hazardous voltage before opening the cabinet or touching power terminals.

Do not rely on the elapsed time alone for DC-bus discharge. Measure the DC bus and follow the Bosch Rexroth discharge-time and safety procedure for the installed system.

Tools Required:

• ESD wrist strap
• Insulated multimeter rated for the applicable voltage
• Screwdrivers appropriate for the cabinet terminals
• Wire labels
• Smartphone/camera
• Original drive documentation
• PC/service interface if parameter backup is required

Data Backup:

1. Record the complete HCS02.1E-W0028-A-03-NNNN type code.
2. Record material number R911298374.
3. Photograph the drive nameplate.
4. Record the firmware and control-section identification where accessible.
5. Back up drive parameters using the applicable Rexroth commissioning software.
6. Photograph all power, motor, encoder, and control connections.
7. Record the existing axis configuration and motor model.
8. Photograph DIP switches, address settings, or option modules where applicable.

Stage 2: Removing the Old Drive — 10 minutes

1. Isolate the mains supply and verify zero hazardous voltage.
2. Verify that the DC bus has discharged according to the manufacturer’s procedure.
3. Label incoming mains conductors.
4. Label motor U/V/W conductors.
5. Label control, feedback, and communication cables.
6. Disconnect the cables without stressing the connectors.
7. Remove the drive’s mounting hardware.
8. Remove the unit from the cabinet.
9. Inspect the cabinet wiring and mounting surface.
10. Check for evidence of overheating, dust contamination, or fan failure.

⚠️ Do not substitute a similar-looking unit without checking the complete type code. models differ in current capacity, options, and electrical configuration.

Stage 3: Installing the Replacement — 10 minutes

1. Verify the replacement type code is .1E-W0028-A-03-NNNN.
2. Confirm the material number where applicable: R911298374.
3. Inspect the cooling fan and ventilation openings.
4. Mount the drive securely in the cabinet.
5. Maintain the manufacturer’s required clearance above and below the drive.
6. Reconnect mains conductors according to the original wiring documentation.
7. Reconnect the motor conductors.
8. Reconnect encoder/feedback and control connections.
9. Verify protective grounding.
10. Confirm that no loose conductor can contact the chassis or adjacent terminals.

The referenced documentation calls for clearance around the device; one product reference specifies 70 mm minimum space above and below. Verify the exact installation clearance against the applicable Bosch Rexroth manual for your cabinet configuration.

Self-Checklist:

• Exact type code verified
• R911298374 verified
• Mains wiring checked
• Motor wiring checked
• Feedback connection checked
• Protective ground connected
• Cooling path unobstructed
• Required cabinet clearance maintained
• Parameter backup available

Stage 4: Power-On & Commissioning — 10–20 minutes

1. Do not connect the mechanical load for the first functional check if the machine design permits a controlled no-load test.
2. Verify the incoming voltage before energizing.
3. Energize the control system according to the machine’s startup procedure.
4. Check the drive diagnostic display.
5. Connect the commissioning software.
6. Verify the drive identification and firmware.
7. Restore the backed-up parameter set only after confirming compatibility.
8. Verify the motor type and feedback configuration.
9. Check the command and feedback direction.
10. Perform a low-speed jog.
11. Check motor current and drive temperature.
12. Run the axis through a controlled test sequence.
13. Verify limits, homing, positioning, and emergency-stop behavior before returning the machine to production.

⚠️ Parameter transfer is not a substitute for compatibility verification. Confirm the replacement drive, motor, firmware, and control configuration as a complete system.

A Note on the NNNN Configuration

The suffix matters. Bosch Rexroth’s documentation lists .1E-W0028-A-03-NNNN alongside other variants such as -NNNV and -LNNN. The documentation identifies -A-03-NNNN as the configuration with no additional options, while other suffixes represent different configurations.

For a plant replacement, therefore, order against the complete type code, not simply .1E-W0028.

Frequently Asked Questions (FAQ)

What is the Bosch Rexroth .1E–A-03-NNNN?

It is an IndraDrive C compact converter, material number R911298374, used in industrial drive and motion-control systems. The rating corresponds to a maximum current of approximately 28.3 A and a typical 4 kW motor rating.

What is the rated motor power?

The .1E- is associated with a typical 4 kW motor rating. The exact usable motor power depends on the application, supply conditions, motor characteristics, switching frequency, and system configuration.

What input voltage does .1E- support?

The documented supply range is 3-phase AC 200–500 V, with a ±10% tolerance stated in the referenced technical data. The unit can also accommodate 1-phase AC 200–250 V under the specified conditions.

What is the maximum current?

The maximum current is approximately 28.3 A, while the continuous current is approximately 12 A. Do not confuse the peak/maximum-current figure with the continuous operating current when sizing the system.

Is .1E- air cooled?

Yes. It uses internal air cooling with an integrated blower. Cabinet airflow and the required clearance around the unit therefore matter during installation.

Can I replace another .1E- with this unit?

Not based on the designation alone. Compare the complete type code, material number, control hardware, option suffixes, firmware requirements, motor, feedback system, and existing parameter set. In particular, NNNN, NNNV, and other suffixes should not be treated as interchangeable without verification.

s the .1E- new or refurbished?

The model number itself does not establish physical condition. Suppliers may offer New Original, New Surplus, Used Tested, or Refurbished units. The purchasing record should state the actual condition and, for a used unit, identify whether functional testing was performed.