Bosch Rexroth HMS01.1N-W0350-A-07-NNNN IndraDrive Servo Inverter

Bosch Rexroth HMS01.1N-W0350-A-07-NNNN IndraDrive: Industrial Data Link for Smart Factory Motion Control

The Bosch Rexroth HMS01.1N-W0350-A-07-NNNN is a high-performance single-axis servo inverter from the IndraDrive series, engineered to serve as a critical communication and motion control node in modern industrial automation networks. With native support for SERCOS III and EtherCAT fieldbus protocols, this drive does not merely control motor torque and velocity — it functions as an intelligent data gateway between field-level devices and upper-level control and monitoring systems. In smart factory environments where real-time data integrity, deterministic communication, and seamless system integration are non-negotiable, the HMS01.1N-W0350-A-07-NNNN delivers the connectivity backbone that production lines demand.

Network Communication Table

Connected Automation Data Flow

In a fully integrated smart factory architecture, the HMS01.1N-W0350-A-07-NNNN sits at the intersection of motion execution and network intelligence. The data flow begins at the sensor and encoder level — rotary encoders, linear scales, and torque sensors feed real-time position and load data directly into the drive’s closed-loop control engine. This signal acquisition layer operates at sub-millisecond resolution, ensuring that the drive’s current and velocity loops respond to mechanical disturbances before they propagate into process errors.

From the drive, processed motion data travels upstream via the SERCOS III ring network to the Bosch Rexroth IndraMotion MTX CNC controller or the IndraMotion MLC motion logic controller. These controllers coordinate multi-axis synchronization across additional IndraDrive units — such as the HMD01.1N (double-axis module) or the HCS02.1E power supply section — ensuring that gantry systems, rotary tables, and servo presses maintain micron-level positional accuracy across all axes simultaneously.

Where EtherCAT is the preferred fieldbus, the HMS01.1N-W0350-A-07-NNNN integrates seamlessly into EtherCAT master environments, including third-party PLCs such as Beckhoff CX series controllers or Siemens S7-1500 with EtherCAT communication modules. Remote I/O nodes — for example, Bosch Rexroth Inline I/O modules or third-party EtherCAT I/O terminals — can be daisy-chained on the same network segment, allowing the drive to coexist with distributed digital and analog I/O without requiring a separate fieldbus infrastructure.

At the HMI and SCADA layer, the IndraMotion MTX or an OPC UA gateway aggregates drive status data — including actual torque, speed, DC bus voltage, thermal load, and fault codes — and forwards it to supervisory systems such as Bosch Rexroth IndraWorks engineering software or third-party SCADA platforms. Operators monitoring production from a Rexroth VPP 16 or VPP 40 industrial panel PC can view live drive parameters, trend historical data, and acknowledge alarms without interrupting the production cycle. This closed-loop visibility from field device to control room is the foundation of transparent, data-driven manufacturing.

For variable-speed pump and fan applications or coordinated conveyor systems, the HMS01.1N-W0350-A-07-NNNN can also interface with Bosch Rexroth IndraDrive Fc frequency inverters on the same network segment, enabling unified energy management and coordinated speed profiling across mixed drive topologies. Power supply coordination is handled by the HNF01.1A mains filter and regenerative supply unit, which feeds the DC bus shared across multiple IndraDrive axis modules — reducing harmonic distortion and enabling energy recovery during deceleration phases.

Solving Data Isolation in Industrial Sites

Many industrial facilities operate with a fragmented automation landscape: legacy PLCs running PROFIBUS or DeviceNet, newer servo drives on SERCOS III or EtherCAT, and SCADA systems that can only communicate via Modbus TCP or OPC UA. The result is data isolation — each subsystem generates valuable process data that never reaches the operators or analytics platforms that need it most.

The HMS01.1N-W0350-A-07-NNNN addresses this challenge through its flexible communication architecture. By deploying a protocol gateway — such as the HMS Networks Anybus X-gateway or a Bosch Rexroth communication module — between the IndraDrive network and legacy fieldbus segments, integrators can bridge SERCOS III or EtherCAT data into PROFINET, Modbus TCP, or EtherNet/IP without replacing existing infrastructure. This approach preserves capital investment in legacy equipment while enabling the data transparency required for OEE monitoring, predictive maintenance, and Industry 4.0 initiatives.

Remote diagnostics represent another critical capability. Through the IndraWorks engineering environment or a VPN-connected edge gateway, maintenance engineers can remotely access drive oscilloscope traces, fault history logs, and parameter sets without dispatching technicians to the machine. This capability is particularly valuable for geographically distributed production sites or for OEMs providing after-sales service to end customers. Alarm notifications can be routed via SCADA to email or SMS, ensuring that thermal overloads, encoder faults, or communication timeouts are escalated immediately rather than discovered during the next shift change.

Production line transparency is further enhanced by the drive’s integrated condition monitoring functions. The HMS01.1N-W0350-A-07-NNNN continuously tracks motor winding temperature, bearing load cycles, and DC bus ripple, making this data available to upper-level analytics systems. When integrated with a Manufacturing Execution System (MES), these parameters feed predictive maintenance algorithms that schedule servicing based on actual wear rather than fixed time intervals — reducing unplanned downtime and extending equipment service life.

System expansion is straightforward: additional IndraDrive axis modules can be added to the SERCOS III ring or EtherCAT segment without reconfiguring the entire network. The ring topology of SERCOS III provides inherent redundancy — a single cable fault does not interrupt communication to other nodes, maintaining production continuity while the fault is located and repaired.

Industrial Connectivity FAQ

Q1: What is the communication cycle time of the HMS01.1N-W0350-A-07-NNNN on SERCOS III and EtherCAT networks?
On SERCOS III, the HMS01.1N-W0350-A-07-NNNN supports cycle times as low as 250 µs, providing deterministic, jitter-free communication suitable for high-speed CNC and robotics applications. When operating on EtherCAT, cycle times can be reduced to 62.5 µs, enabling ultra-fast multi-axis synchronization. Both protocols guarantee bounded latency, which is essential for applications where positional accuracy depends on synchronized torque commands across multiple axes.

Q2: Is the HMS01.1N-W0350-A-07-NNNN compatible with third-party PLCs and SCADA systems outside the Bosch Rexroth ecosystem?
Yes. The EtherCAT interface allows the drive to operate as an EtherCAT slave under any IEC 61158-compliant EtherCAT master, including Beckhoff TwinCAT, Omron Sysmac, and Siemens S7-1500 with EtherCAT CM. For SCADA integration, drive data can be exposed via OPC UA through the IndraMotion controller or a third-party OPC UA gateway, making it accessible to Wonderware, Ignition, WinCC, and other supervisory platforms without custom protocol development.

Q3: How is network stability ensured in high-interference industrial environments?
SERCOS III’s ring topology provides automatic fault detection and network reconfiguration in the event of a single cable break, maintaining communication to all other nodes on the ring. EtherCAT’s distributed clock mechanism compensates for cable propagation delays, ensuring synchronization accuracy below 1 µs across all nodes regardless of network length. Industrial-grade shielded Ethernet cables (Cat5e or Cat6 STP) are recommended for both protocols to minimize electromagnetic interference from adjacent power cables and motor leads.

Q4: What testing and warranty coverage is provided with the HMS01.1N-W0350-A-07-NNNN?
Every HMS01.1N-W0350-A-07-NNNN unit is fully tested and verified before shipment, including functional power-on testing, communication interface verification, and parameter integrity checks. All units are covered by a 12-month warranty against manufacturing defects and operational failures. In-stock units are available for immediate dispatch, supporting urgent production line repairs and minimizing machine downtime. For volume procurement or project-based supply, please contact our sales team to discuss lead times, pricing, and technical support arrangements.

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