The REXROTH R911393599 HCS01.1E-W0005-A-03-B-ET-EC-NN-L3-NN-AW is a compact servo drive controller designed for precision motion control in industrial automation systems. It belongs to the HCS01.1E compact converter platform, a drive-controller series used for single-axis applications that require accurate motor regulation, compact cabinet installation, Ethernet-based communication capability, and reliable integration with machine control systems. Similar HCS01.1E-W0005 drive references identify this platform as an IndraDrive compact converter and confirm that W0005 versions are part of the 5 A compact drive class.

This unit should be described as a servo drive controller or compact converter, not as a servo motor. Its function is to control a compatible servo motor by processing command signals, feedback data, diagnostic information, current regulation, and drive protection functions. In a complete automation system, the drive controller acts as the electronic control stage between the machine controller and the motor, converting control commands into stable axis movement.

The full type code HCS01.1E-W0005-A-03-B-ET-EC-NN-L3-NN-AW is important for technical selection. HCS01.1E units with the same W0005 power class may differ in control section, communication interface, feedback interface, safety option, firmware configuration, and additional hardware functions. For this reason, the order number R911393599 should always be used together with the complete model code when preparing a quotation, checking compatibility, arranging replacement, or recording spare-parts inventory.

Technical Specification Table

Product Overview

The REXROTH HCS01.1E-W0005-A-03-B-ET-EC-NN-L3-NN-AW is intended for compact machine axes where precise motion, moderate power demand, and reliable control-system integration are required. The W0005 power class makes it suitable for low-power servo applications rather than large main-axis or heavy-load drive tasks. This category of drive controller is commonly used for auxiliary axes, compact positioning systems, feeder modules, test fixtures, indexing units, inspection stations, labeling equipment, and modular production cells.

In many industrial machines, compact servo axes perform important process functions even when their mechanical load is not large. A packaging machine may use a drive of this class for film feed, label placement, product spacing, sealing motion, or cutting synchronization. An assembly machine may use compact servo control for fixture movement, part transfer, small press axes, indexing tables, or loading devices. Inspection systems may use this type of drive for repeatable sensor positioning, measuring head movement, or controlled test fixture motion.

The value of this model lies in its defined configuration. Compared with other HCS01.1E-W0005 models, this version uses the B-ET-EC-NN-L3-NN-AW structure. That makes it different from A-CC versions, PB fieldbus versions, EC-EC interface versions, S5 safety versions, and FW-ending versions. For maintenance or replacement, this difference is not cosmetic. It can affect communication behavior, interface matching, safety or functional configuration, firmware handling, and machine compatibility.

B Control Section and ET Communication

The B control section is a key part of the type code. In servo drive systems, the control section can influence supported functions, parameter structure, firmware behavior, and compatibility with the existing automation project. A B-configuration drive should not be replaced casually by a different control-section version unless the machine documentation confirms compatibility.

The ET code indicates an Ethernet-based communication configuration. Public HCS01 references describe the IndraDrive Cs platform as supporting modern communication hardware with multi-protocol Ethernet capability, including industrial Ethernet systems such as SERCOS III, PROFINET IO, EtherNet/IP, and EtherCAT, depending on the configured hardware and firmware environment.

In practical machine operation, communication is central to axis control. The drive controller must exchange command values, actual position or speed values, diagnostic data, status words, control words, alarm information, and parameter data with the machine controller. If the communication configuration does not match the controller project, the axis may fail to enable or may not be recognized by the control system.

EC NN L3 NN AW Configuration Meaning

The EC interface code should be preserved when selecting a replacement unit. Interface codes may relate to feedback handling, encoder compatibility, or machine-specific connection requirements. A model with EC-NN should not automatically be treated as interchangeable with EC-EC, EC-ET, EC-PB, or EC-EP versions.

The L3 code is one of the most important distinguishing points of this model. In practical service work, L3 should be treated as a required functional or safety-related configuration position unless the original machine documentation confirms otherwise. A machine originally configured around an L3 option may not accept a drive without that option. Conversely, installing a different safety or function option may create commissioning errors or machine validation issues.

The AW ending is also significant. Many related HCS01.1E models end with FW, while this unit ends with AW. The ending code should be copied exactly in quotation requests and replacement orders. It may reflect a different firmware or configuration delivery condition compared with FW-ending models. Because firmware and delivery configuration can affect drive behavior, the AW code should not be ignored during procurement.

Motion Control Function

The R911393599 HCS01.1E-W0005-A-03-B-ET-EC-NN-L3-NN-AW supports closed-loop servo-axis operation when paired with a compatible servo motor, feedback system, controller project, and parameter set. During operation, the drive receives movement commands, regulates motor current, evaluates feedback, monitors drive load, and reports operating status back to the controller.

This allows the connected axis to perform controlled speed movement, torque-based operation, and position-related tasks. In automated equipment, this is essential for accurate product handling, stable acceleration, repeatable stopping points, synchronized motion, and predictable process results. The drive controller helps reduce mechanical variation by keeping the motor response aligned with command values and feedback data.

For machine builders, this type of compact drive supports modular design. Several low-power servo axes can be placed in one cabinet while keeping the electrical layout relatively compact. For maintenance teams, a correctly matched replacement can reduce downtime if the order number, type code, firmware condition, parameters, wiring, and motor compatibility are confirmed before installation.

Weight and Packaging Information

The estimated net weight of the REXROTH R911393599 HCS01.1E-W0005-A-03-B-ET-EC-NN-L3-NN-AW is approximately 1.3 kg. Public references for related HCS01 compact drive controllers commonly list the compact W0005 class around 1.30 kg, so this is a practical weight reference for preliminary quotation, warehouse handling, and basic freight estimation.

The final gross weight should be measured after packaging. Gross weight can increase because of anti-static bags, foam protection, carton material, labels, manuals, and export packing reinforcement. For formal shipping documents, customs paperwork, or final freight quotation, the packed gross weight is more reliable than the estimated net product weight.

Because this product is an electronic drive controller, it should be protected from electrostatic discharge, moisture, conductive dust, mechanical shock, and strong vibration during transportation. Anti-static packaging and rigid outer-carton protection are recommended for international shipment.

Application Reference Table

Installation and Commissioning Notes

The drive controller should be installed inside a suitable electrical cabinet with correct grounding, ventilation, cable routing, and environmental protection. Power cables, motor cables, feedback cables, communication cables, and control wiring should be separated according to good industrial wiring practice. The cabinet should protect the unit from moisture, conductive contamination, excessive dust, corrosive gas, and mechanical impact.

Before commissioning, the installer should verify supply voltage, control voltage, grounding, motor connection, feedback connection, ET communication settings, EC interface requirements, L3 configuration requirements, AW ending configuration, parameter file, and controller project compatibility. If the unit is being used as a replacement, the parameter file from the original machine should be backed up whenever possible before removing the old drive.

After installation, the axis should be tested under controlled conditions. Initial checks should include communication status, feedback recognition, motor direction, safe enable behavior if applicable, low-speed operation, acceleration response, fault monitoring, and repeatable positioning.

Replacement Checklist

Product Summary

The REXROTH R911393599 HCS01.1E-W0005-A-03-B-ET-EC-NN-L3-NN-AW is a compact single-axis servo drive controller for low-power industrial motion control. It is suitable for automated equipment requiring accurate movement, compact cabinet installation, Ethernet-based communication, defined interface matching, and reliable servo-axis regulation.

Its main distinguishing feature is the B-ET-EC-NN-L3-NN-AW configuration. This separates it from related HCS01.1E-W0005 models with PB communication, EC-EC interfaces, EP or SB options, NN-only configurations, S5 safety versions, or FW-ending structures. For procurement, quotation, replacement, and technical confirmation, users should provide both R911393599 and HCS01.1E-W0005-A-03-B-ET-EC-NN-L3-NN-AW. The estimated net weight is 1.3 kg, while final packed gross weight should be measured before shipment or export documentation.