Bosch Rexroth HMS01.1N-W0070-A-07-NNNN Safety-Enhanced Servo Drive for Harsh Industrial Sites
The Bosch Rexroth HMS01.1N-W0070-A-07-NNNN is a single-axis AC servo drive from the IndraDrive HMS series, engineered to deliver uncompromising motion control performance in the most demanding industrial environments. Designed for continuous-duty operation in high-load, high-interference production facilities — including petrochemical plants, metallurgical lines, port crane systems, power generation stations, and heavy-process manufacturing — this drive is a cornerstone component for engineers who cannot afford control interruptions or unplanned downtime.
In critical industrial applications, servo drive reliability is not a preference — it is a safety requirement. The HMS01.1N-W0070-A-07-NNNN addresses this directly through its robust hardware architecture, which is built to resist signal drift, power fluctuations, surge impulses, and communication anomalies that routinely compromise lesser drives in harsh field conditions. Its 70A continuous output current rating ensures stable torque delivery even under sustained high-load cycles, while its integrated EMC filtering and shielded power stage significantly reduce the risk of electromagnetic interference propagating into adjacent control circuits.
Safety Reliability Table
| Parameter | Specification |
|---|---|
| Model / Full SKU | HMS01.1N-W0070-A-07-NNNN |
| Series | IndraDrive HMS (Single-Axis) |
| Brand | Bosch Rexroth |
| Continuous Output Current | 70 A |
| Supply Voltage | 3 × AC 200–480 V, ±10% |
| Control Voltage | DC 24 V (±20%) |
| Communication Interface | SERCOS III / Analog / Digital I/O |
| Protection Rating | IP20 (cabinet-mount) |
| Operating Temperature | 0 °C to +45 °C (derated to 55 °C) |
| Storage Temperature | −25 °C to +70 °C |
| Humidity | 5–95% RH, non-condensing |
| Vibration Resistance | IEC 60068-2-6 compliant |
| EMC Compliance | CE, EN 61800-3 Category C2 |
| Safety Function Support | STO (Safe Torque Off) ready |
| Surge / Overvoltage Protection | Integrated DC bus clamping |
| Country of Origin | Germany |
| Weight | 5.3 kg |
| Warranty | 12 Months — Full Functional Guarantee |
Control Cabinet Protection Strategy
In a well-engineered industrial control cabinet, the HMS01.1N-W0070-A-07-NNNN does not operate in isolation — it functions as part of a coordinated protection architecture. When paired with the Bosch Rexroth HMD01.1N-W0036 single-axis drive module, engineers can distribute axis loads across a shared DC bus, reducing peak current demand and protecting the supply rail from transient overloads. The HMV01.1E-W0120 mains supply unit provides regulated DC bus voltage to the HMS drive, and its integrated regenerative feedback capability prevents dangerous voltage spikes during motor deceleration — a critical protection measure in high-inertia applications such as centrifuge drives or heavy conveyor systems.
For communication integrity, the HMS01.1N-W0070-A-07-NNNN operates natively on SERCOS III real-time Ethernet, which provides deterministic, noise-immune data exchange with the motion controller. In installations where legacy fieldbus infrastructure is in use, the Bosch Rexroth HAS02.1 communication option module enables seamless PROFIBUS DP or DeviceNet integration without compromising the drive’s safety response times. Alongside the drive, the CSH01.1C control section handles high-level motion programming and safety logic, while the DAE01.1 encoder evaluation module ensures accurate position feedback even in environments with strong magnetic interference from welding equipment or large motors.
Power quality is a persistent threat in heavy industrial sites. Pairing the HMS01.1N-W0070-A-07-NNNN with a dedicated line filter module (such as the Bosch Rexroth NFD03.1) upstream of the supply unit suppresses conducted EMI and protects the drive’s input rectifier from grid-borne disturbances. For installations in facilities with frequent power interruptions, a 24 V UPS buffer module maintains the drive’s control voltage during brief supply dips, preventing uncontrolled axis shutdown and preserving the integrity of active safety interlocks. The Bosch Rexroth HLB01.1D braking resistor module provides a reliable dissipation path for regenerative energy, protecting the DC bus from overvoltage faults during emergency stops on high-speed axes.
Critical Industrial Safety Applications
Petrochemical & Refinery Plants: In continuous process environments where an unplanned axis stop can trigger a cascade of safety shutdowns, the HMS01.1N-W0070-A-07-NNNN’s STO (Safe Torque Off) function enables the drive to be safely de-energized without removing main power from the cabinet — reducing restart time and maintaining process continuity. Its sealed power stage and conformal-coated option variants resist corrosive atmospheres common in chemical processing zones.
Metallurgical & Steel Mill Applications: Rolling mill drives and continuous casting machines demand servo drives capable of sustaining rated torque under prolonged high-current conditions. The HMS01.1N-W0070-A-07-NNNN’s 70 A continuous rating and robust thermal management make it suitable for these duty cycles, while its integrated DC bus protection prevents destructive overvoltage events caused by sudden load rejection on mill drives.
Port Crane & Heavy Lifting Systems: In port crane hoist and trolley drives, precise speed and position control under variable load is essential for both operational efficiency and personnel safety. The HMS drive’s high-resolution encoder interface and fast current control loop deliver the dynamic response required for safe load handling, while its STO input allows integration with the crane’s safety PLC interlock chain.
Water Treatment & Pump Stations: Municipal and industrial water treatment facilities rely on continuous pump operation. The HMS01.1N-W0070-A-07-NNNN supports smooth speed ramping and regenerative braking for large pump motors, reducing mechanical stress and extending seal life — directly contributing to reduced maintenance downtime and improved plant safety.
Mining & Mineral Processing: In underground and surface mining operations, drives must withstand high vibration, dust ingress, and wide temperature swings. The HMS series’ compliance with IEC 60068-2-6 vibration standards and its wide operating temperature range make it a reliable choice for conveyor, crusher, and ventilation fan drives in these environments.
Safety and Quality FAQ
Q1: What warranty coverage is provided for the HMS01.1N-W0070-A-07-NNNN?
All units supplied by SMARTNEXMSK carry a 12-month full functional warranty from the date of shipment. If the unit fails under normal operating conditions within the warranty period, we provide free replacement or repair. Our warranty covers both new and tested-refurbished units, with each unit individually documented.
Q2: What pre-shipment testing is performed on each unit?
Every HMS01.1N-W0070-A-07-NNNN undergoes a structured outgoing inspection that includes power-on functional verification, DC bus voltage check, communication interface test, and visual inspection for physical damage or component degradation. Units that do not pass all test criteria are quarantined and not shipped. A test record is available upon request.
Q3: Is the HMS01.1N-W0070-A-07-NNNN compatible with my existing IndraDrive system?
The HMS01.1N-W0070-A-07-NNNN is fully compatible with the Bosch Rexroth IndraDrive HMS/HMD/HMV platform. It operates with standard Bosch Rexroth CSH/CSB control sections and supports SERCOS III, analog, and digital I/O interfaces. For legacy SERCOS II or PROFIBUS installations, compatibility depends on the firmware version and option modules fitted. Our technical team can advise on compatibility before purchase.
Q4: Can you guarantee long-term supply and replacement support?
Yes. SMARTNEXMSK maintains dedicated stock of IndraDrive HMS series components to support both immediate replacement needs and planned maintenance programs. We source units through verified industrial supply channels and can provide lead-time commitments for volume orders. For critical production lines, we recommend establishing a consignment or reserved-stock arrangement to eliminate supply risk.
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