Description
1. Product Overview
Rexroth HMS01.1N-W0020-A-07-NNNN (Part No.: R911295323) is a high-performance single-axis servo drive of Bosch Rexroth IndraDrive HMS01 series, developed for high-precision automated motion control applications and serving as the core drive unit of industrial servo control systems. Fully compatible with the full range of Rexroth servo motors and mainstream industrial motion controllers, this device is mainly used for single-axis precise speed regulation, closed-loop position control, dynamic torque adjustment, motion parameter calibration and load-adaptive drive of industrial machinery and equipment. It can accurately realize core motion control functions including high-speed start-stop, precise positioning, constant torque output and dynamic condition compensation. Widely applied to automated production lines, precision machine tools, rubber & plastic equipment, packaging & printing, heavy-duty transmission and other industrial equipment, it acts as the core power control component guaranteeing motion accuracy, operational stability and production consistency of mechanical equipment.
The drive strictly complies with Bosch Rexroth design specifications for industrial drive equipment and IEC international industrial electrical standards, and has obtained complete industrial electrical certifications. It is designed for harsh on-site conditions featuring heavy load, frequent start-stop, continuous speed change and complex electromagnetic environment. Adopting high-precision power drive architecture, intelligent vector control algorithm and full-range electrical protection design, it boasts outstanding core characteristics such as high control accuracy, fast dynamic response, stable speed and torque, wide load adaptability, excellent anti-interference performance and no performance degradation during long-term operation. It can effectively solve common problems of industrial equipment including motion jitter, positioning deviation, speed drift, unstable torque and start-stop impact. It is widely used in complete assembly of new automated systems, technical transformation and upgrade of old servo drive equipment, replacement of faulty drives and strategic spare parts reserve for core components of industrial automated production lines. It fully ensures accurate motion control, stable operating conditions and long-term reliable operation of industrial equipment, and avoids equipment stuttering, machining deviation, unplanned shutdown and other failures caused by abnormal drive parameters.
2. Functional Characteristics
2.1 High-precision Vector Control for Superior Motion Control Accuracy
Equipped with exclusive high-end Rexroth vector control algorithm, it supports precise three closed-loop control of position loop, speed loop and torque loop. Its speed regulation accuracy and repeated positioning accuracy reach top industrial level. It can adjust motor operating speed, output torque and motion position in real time and accurately, perfectly meeting high-speed high-precision motion requirements of precision equipment, and effectively suppress low-speed crawling, high-speed jitter, positioning offset and other defects. It automatically optimizes control parameters for different load conditions to achieve smooth speed regulation, precise positioning and constant force output throughout operation. It guarantees machining accuracy and operational stability of industrial equipment at the underlying drive level, suitable for precision machining and high-precision automated transmission scenarios.
2.2 Ultra-fast Dynamic Response for Frequent Start-stop Conditions
Optimized for high-speed operation scheduling and power response mechanism, it features high signal sampling frequency and ultra-low command response delay. It can quickly respond to changes of motion commands issued by the upper controller and precisely match dynamic operating conditions such as frequent start-stop, instantaneous speed change and rapid direction reversal of equipment. It can offset operating fluctuations caused by sudden load change and speed switching in real time, eliminate equipment action deviation and linkage out-of-sync resulted from delayed commands and slow response, greatly improve operation rhythm and production efficiency of automated equipment, and adapt to high-speed continuous industrial production scenarios.
2.3 Wide-range Load Adaptation for Multi-condition Operation
It has intelligent load identification and adaptive parameter adjustment functions. It can automatically identify different operating conditions including no-load, light load, heavy load and impact load, and dynamically optimize drive parameters, current output and torque ratio. Without frequent manual parameter commissioning, it can adapt to variable load conditions, effectively solving drawbacks of traditional drives such as poor adaptability of single set of parameters, insufficient power under heavy load, overspeed under light load and working condition fluctuation, and greatly improving equipment fault tolerance and operating condition adaptation range.
2.4 Hardware-level Multiple Electrical Protection for Safe and Stable Operation
Built with a full-dimensional hardware electrical protection system integrating multiple protection mechanisms including overvoltage, undervoltage, overcurrent, overload, short circuit, overtemperature, phase loss, regenerative overvoltage and motor abnormality. Under sudden conditions such as grid fluctuation, load impact, motor fault and abnormal environment, it can quickly cut off abnormal output and lock fault status to protect the drive itself, servo motor and downstream mechanical equipment. It prevents hardware burnout, equipment damage, production accidents and other problems caused by fault propagation, greatly improving equipment operational safety and condition fault tolerance.
2.5 Powerful Anti-interference Design for Complex Industrial Electromagnetic Environment
Adopting industrial-grade EMC design with built-in power filter, signal isolation and noise suppression circuits, it can effectively filter interference signals on industrial sites including grid fluctuation, high-frequency electromagnetic interference, pulse noise generated by equipment start-stop and line crosstalk. It thoroughly avoids speed drift, signal jump, command misjudgment, abnormal equipment actions and other problems induced by electromagnetic interference. It adapts to complex industrial environments with clustered multi-equipment operation, strong electromagnetic radiation and unstable grid conditions, and ensures accurate and reliable transmission of drive signals and motion commands.
2.6 Intelligent Fault Self-diagnosis for Convenient and Efficient Maintenance
Equipped with an on-board intelligent diagnosis system, it monitors the drive’s supply voltage, output current, operating temperature, motor status, communication conditions and internal power unit status round the clock. It can accurately identify explicit faults and hidden operating risks, display fault codes in real time, record operation logs and fault traceability information, and support remote diagnosis and status monitoring via upper systems. Maintenance personnel can quickly locate root causes of faults and complete troubleshooting, greatly shortening downtime for overhaul and reducing maintenance difficulty and labor cost.

3. Technical Parameters
3.1 Core Adaptation Parameters
Model: HMS01.1N-W0020-A-07-NNNN Part No.: R911295323 Brand: Bosch Rexroth Series: IndraDrive HMS01 Single-axis Servo Drive Series Product Type: Industrial High-precision Single-axis Servo Drive Compatible Devices: Full range of matching Rexroth servo motors, industrial motion controllers, PLC control systems Application Scenarios: Precision machine tools, automated production lines, packaging & printing, rubber & plastic machinery, heavy-duty transmission equipment Core Functions: Single-axis speed / position / torque closed-loop control, load adaptive adjustment, motion condition correction, electrical fault protection, intelligent self-diagnosis Application: Complete set assembly for new machines, technical transformation & upgrade of old drive equipment, replacement of faulty modules, spare parts reserve of core industrial components
3.2 Power and Drive Parameters
Rated Output Power: 2.0kW Control Method: Field-oriented vector control, independent regulation of three closed loops (position / speed / torque) Speed Regulation Performance: Wide-range stepless speed regulation, high speed stability, no jitter at low speed and no drift at high speed Response Characteristic: Ultra-fast dynamic response, low-latency command execution, suitable for high-frequency dynamic motion conditions Load Characteristic: Support constant torque, constant speed and variable load adaptive operation with wide load adaptation range
3.3 Electrical Performance Parameters
Input Voltage: Standard industrial three-phase AC power supply, compatible with conventional industrial grid conditions Electrical Precision: Precisely calibrated at factory, high consistency of output current, voltage and speed parameters with minimal steady-state error Anti-interference Characteristic: Compliant with industrial EMC standards, resistant to high-frequency electromagnetic interference, grid fluctuation and pulse noise Protection Features: Multiple hardware protections including overvoltage, undervoltage, overcurrent, short circuit, overload, overtemperature and phase loss Regenerative Handling: Support regenerative energy buffering and absorption, suitable for equipment frequent start-stop and fast direction reversal conditions
3.4 Communication and Control Parameters
Control Modes: Upper command control, local parameter control, automatic condition adaptation Communication Protocols: Compatible with Rexroth proprietary bus and mainstream industrial communication protocols, support remote parameter read/write and status monitoring Signal Interfaces: Standardized control signals, feedback signals and power interfaces, consistent with original equipment wiring specifications Data Feedback: Real-time upload of full-dimensional operating data including speed, torque, current, temperature and fault status Parameter Storage: Support storage and calling of multiple sets of process parameters to meet the demand of multi-condition production switching
3.5 Environmental and Operating Condition Parameters
Operating Temperature: 0℃ ~ +45℃, suitable for continuous operation in conventional industrial cabinets Storage Temperature: -20℃ ~ +60℃ Operating Humidity: 5%~95%RH (non-condensing) Operation Mode: Support 7×24-hour uninterrupted continuous operation for regular heavy-load industrial production Environmental Resistance: Tolerate normal industrial vibration, dust, temperature change and electromagnetic interference Protection Grade: Industrial standard protection design, dust-proof, moisture-proof, anti-aging for long-term stable operation
4. Hardware Configuration & Structural Advantages
4.1 Core Hardware Configuration
The Rexroth HMS01.1N-W0020-A-07-NNNN drive adopts the new-generation industrial servo drive hardware architecture of Rexroth. It is equipped with high-precision power drive unit, high-speed main control computing chip, vector control algorithm processing unit, electrical isolation filter module, multi-protection circuit and intelligent fault diagnosis unit. The internal layout adopts separated design for power circuit, control circuit and signal circuit, completely eliminating circuit crosstalk, signal interference and power fluctuation. All core components pass original factory high-precision electrical screening, high-low temperature aging, full-load durability test and EMC inspection. Specially optimized for industrial equipment scenarios of frequent start-stop, dynamic load and long-term continuous operation, it features fast computing speed, high drive precision, stable power output, strong anti-interference capability, ultra-low failure rate and no long-term performance degradation. It can independently complete full-process functions including precise single-axis motor drive, adaptive condition adjustment, fault protection and status monitoring without external auxiliary adaptation equipment.
4.2 Structural Design Advantages
The device adopts standardized compact modular structure of HMS01 series, featuring compact layout and small cabinet footprint, perfectly fitting the standard cabinet installation system of industrial automation equipment. The overall industrial reinforced structural design with internally fixed and locked components is anti-vibration and anti-loosening, structurally stable. It can effectively prevent poor component contact and abnormal operating conditions caused by long-term vibration on industrial sites. The whole machine adopts industrial dust-proof, moisture-proof and anti-oxidation protection process, which can effectively resist environmental erosion such as cabinet humidity, dust accumulation and alternating temperature change. It thoroughly solves common industry drawbacks of ordinary drives such as precision attenuation, unstable working conditions, high failure rate and easy aging during long-time operation. The standardized mounting holes and terminal blocks enable convenient assembly and disassembly with firm and standardized wiring. On-board status indicators and fault display interface can visually reflect power supply, operation, communication and fault status of the equipment, facilitating daily inspection and rapid fault location for maintenance personnel, greatly improving maintenance efficiency and reducing overhaul costs.
5. Working Principle
The Rexroth HMS01.1N-W0020-A-07-NNNN single-axis servo drive adopts a full closed-loop working mechanism: Power-on self-test → parameter initialization → command reception and parsing → vector algorithm calculation → precise power output → motor closed-loop drive → real-time operating condition acquisition and correction → fault monitoring and protection, to realize high-precision and high-stability motion control of servo motors.
After power-on, the drive firstly carries out comprehensive hardware self-inspection and parameter initialization. After confirming normal conditions of power supply, circuits, chips and protection units, it enters standby ready state. During operation, the drive receives position, speed and torque commands issued by the upper controller in real time, completes high-speed calculation and parsing via built-in high-end vector control algorithm, dynamically adjusts output current, voltage and drive waveform combined with real-time motor feedback operating parameters, realizes precise three closed-loop regulation and drives the servo motor to complete accurate motion actions. Meanwhile, it collects operating information such as equipment load change, speed fluctuation and temperature variation in real time. Through adaptive parameter compensation mechanism, it automatically corrects operating deviation and offsets operation drift caused by environment, load and equipment aging to ensure smooth operation and accurate parameters of the motor all the time.
During the whole operation, the drive continuously monitors electrical conditions and hardware status. Once hidden risks such as overvoltage, overcurrent, overload, overtemperature and signal abnormality are detected, the hardware protection mechanism is triggered immediately to lock fault output, cut off power supply and upload fault codes, preventing fault propagation and protecting the whole equipment. Through precise algorithm regulation and full-dimensional protection mechanism, it fully guarantees accurate motion control, stable operating conditions and safe operation of industrial equipment, and effectively reduces probability of abnormal equipment motion and fault shutdown.
6. Application Scenarios
6.1 Single-axis Motion Control for Precision Industrial Equipment
Widely applied to precision CNC machine tools, automated manipulators, packaging equipment, printing machinery, rubber & plastic forming equipment, light-duty heavy-duty transmission equipment and other industrial scenarios. As the core drive unit of single-axis servo systems, it takes full charge of core tasks including precise positioning, high-speed speed regulation, constant torque transmission and high-precision action execution of equipment. It effectively guarantees machining accuracy, motion stability and production consistency of mechanical equipment, eliminates motion jitter, positioning deviation, unstable speed and other problems, and serves as an indispensable core power control component for precision automated equipment.
6.2 Adaptation to High-frequency Continuous Industrial Production Scenarios
Relying on core advantages including ultra-fast dynamic response, long-term anti-aging, multiple electrical protection and strong anti-interference capability, it perfectly adapts to harsh operating conditions of industrial equipment with 7×24-hour frequent start-stop, continuous speed change and variable load operation. It can output precise power stably for a long time, continuously guarantee smooth motion conditions and parameter non-drift of equipment, greatly reduce maintenance frequency and failure probability of equipment, suitable for high-load production scenarios such as assembly lines, continuous processing and automated mass production.
6.3 Strategic Spare Parts Reserve for Core Industrial Automation Components
As a mainstream precision servo drive unit of Rexroth HMS01 series, Rexroth HMS01.1N-W0020-A-07-NNNN (R911295323) is a core maintenance spare part for industrial automation equipment. It can rapidly handle on-site sudden faults such as aging and failure of drives, parameter drift, abnormal drive and hardware damage, quickly restore motion control performance and production rhythm of equipment, and guarantee year-round uninterrupted stable operation of automated production lines. It acts as core strategic spare parts for emergency repair, daily maintenance and system upgrade & expansion of manufacturing enterprises.
