Rexroth HCS02.1E-W0070-A-03-NNNN Industrial Drive Converter for HCS Series

Rexroth HCS02.1E-W0070-A-03-NNNN: Industrial Data Link for Smart Factory Connectivity

The Bosch Rexroth HCS02.1E-W0070-A-03-NNNN is a high-performance compact converter from the HCS Series, engineered to serve as a critical industrial network interface node within modern smart factory environments. Rated at 70A continuous output current and designed for seamless integration into Rexroth IndraDrive multi-axis drive systems, this unit bridges the gap between field-level devices and upper-level control architectures — enabling real-time data exchange across PROFIBUS DP, SERCOS III, and EtherCAT-compatible network topologies.

In today’s connected manufacturing landscape, the ability to move data reliably from servo axes, spindle drives, and motion controllers up through SCADA and MES layers is no longer optional — it is the backbone of operational transparency. The HCS02.1E-W0070-A-03-NNNN fulfills this role by acting as both a power conversion unit and a communication-capable drive node, supporting cyclic and acyclic data exchange with Rexroth IndraDrive controllers such as the CSB01.1N and CSE01.1N single-axis controllers, as well as the CDB01.1C double-axis controller — all of which share the same SERCOS III ring topology for deterministic, low-latency motion data transmission.

Compatibility & Integration Notes

Connected Automation Data Flow

Within a typical smart factory cell, the HCS02.1E-W0070-A-03-NNNN operates as a drive-level network node that receives motion commands from an IndraMotion MLC or IndraMotion MTX CNC controller via the SERCOS III ring. Axis position, velocity, torque feedback, and diagnostic status are transmitted cyclically at sub-millisecond intervals, feeding real-time data upward to the IndraWorks engineering and SCADA platform for process visualization and alarm management.

On the field device side, the HCS02.1E-W0070-A-03-NNNN connects to Rexroth MSK Series synchronous servo motors and MKD Series motors through the drive’s power and encoder interfaces. Encoder feedback — including absolute position via EnDat 2.2 or Hiperface protocols — is processed locally within the drive and forwarded as standardized process data objects over the SERCOS III network to the motion controller, eliminating the need for separate signal conditioning modules.

For installations requiring PROFIBUS DP connectivity — common in legacy PLC environments using Siemens S7-300/400 or Allen-Bradley ControlLogix platforms — the HCS02.1E-W0070-A-03-NNNN can be paired with the Rexroth HMS01.1N supply module and a PROFIBUS communication option board, enabling the drive to appear as a standard PROFIBUS slave device. This allows existing SCADA systems and HMI panels — including Rexroth VPP Series operator panels — to read drive status, fault codes, and process values without protocol conversion middleware.

In distributed I/O architectures, the drive’s diagnostic data can be aggregated by an edge gateway such as the Rexroth XM22 or a third-party OPC UA gateway, which normalizes drive data into structured OPC UA nodes for consumption by MES and ERP systems. This data path — from servo axis through drive network to cloud analytics — is the foundation of predictive maintenance and digital twin applications in Industry 4.0 deployments.

Solving Data Isolation in Industrial Sites

One of the most persistent challenges in industrial automation is protocol fragmentation: a factory floor may simultaneously run SERCOS III for motion control, PROFIBUS DP for legacy PLCs, EtherNet/IP for newer Allen-Bradley systems, and Modbus TCP for instrumentation — with no native path for data to flow between these islands. The HCS02.1E-W0070-A-03-NNNN addresses this at the drive level by supporting multiple communication option slots, allowing system integrators to select the appropriate fieldbus interface card for the target network without replacing the drive hardware.

Remote monitoring and diagnostics are equally critical. Through the SERCOS III network, the HCS02.1E-W0070-A-03-NNNN continuously reports thermal status, DC bus voltage, current load, and fault history to the IndraWorks diagnostic tool. Maintenance engineers can access this data remotely via VPN-connected SCADA terminals, reducing unplanned downtime by enabling condition-based maintenance scheduling rather than reactive repair cycles.

For production line transparency, the drive’s cyclic process data — including actual torque, speed deviation, and following error — can be logged by the IndraMotion MLC controller and forwarded to OEE (Overall Equipment Effectiveness) dashboards, giving plant managers real-time visibility into axis performance and production quality metrics. System expansion is straightforward: additional HCS02 or HCS03 Series drives can be added to the SERCOS III ring without reconfiguring the existing network, supporting modular machine architectures and phased capacity upgrades.

Every HCS02.1E-W0070-A-03-NNNN unit shipped from our inventory undergoes pre-shipment functional testing, including power-on verification, communication interface check, and parameter backup validation. Stock is available for shipment arranged after confirmation via DHL Express or FedEx International Priority, with full warranty terms confirmed during quotation coverage from the date of invoice.

Industrial Connectivity FAQ

Q1: What is the communication latency of the HCS02.1E-W0070-A-03-NNNN on a SERCOS III network?
SERCOS III supports cycle times as low as 31.25 µs, enabling deterministic, real-time motion data exchange between the HCS02.1E-W0070-A-03-NNNN and the IndraDrive controller. Actual latency depends on the number of drives on the ring and the configured cycle time in the IndraMotion controller project.

Q2: Is the HCS02.1E-W0070-A-03-NNNN compatible with PROFIBUS DP master controllers from other vendors?
Yes. With the appropriate PROFIBUS communication option board installed, the drive operates as a standard PROFIBUS DP slave device and is compatible with any IEC 61158-compliant PROFIBUS DP master, including Siemens SIMATIC, Schneider Electric Modicon, and Beckhoff TwinCAT systems.

Q3: Can the network configuration be expanded without replacing the HCS02.1E-W0070-A-03-NNNN?
Yes. The HCS Series modular architecture allows communication option boards to be swapped or upgraded in the field. Additional drives — including HCS03 Series units for higher power applications — can be added to the SERCOS III ring without disrupting existing network nodes, supporting scalable machine expansion.

Q4: What warranty and testing does this unit include?
All HCS02.1E-W0070-A-03-NNNN units are covered by a warranty terms confirmed during quotation from the date of purchase. Each unit undergoes pre-shipment power-on testing and communication interface verification before dispatch. Replacement or repair support is provided within the warranty period for any confirmed manufacturing defect.