Description
1. Product Overview
Rexroth HZF01.1-W045N (Part No. R911286617) is a high-power servo input integrated filter module of Bosch Rexroth Indramat series. It is specially designed to match Rexroth HMV, HMS and HCS series high-power servo drive systems, and serves as the core unit for front-end EMC electromagnetic compatibility purification and grid harmonic suppression of servo systems. Integrating multiple functions including input filtering, clutter suppression, harmonic absorption, surge protection and impedance matching, this equipment is a dedicated pre-stage accessory module for 45kW-class high-power servo drives. It thoroughly addresses industrial pain points such as grid harmonic pollution, voltage distortion, high-frequency interference and excessive electromagnetic radiation caused by frequent start-stop, high-speed commutation and sudden load changes of high-power servos.
The product has passed a full set of industrial-grade tests including full-load durability, high-low temperature cycling, grid surge, high-frequency disturbance, electromagnetic radiation and long-term aging, and holds authoritative CE and UL certifications. It is suitable for 7×24-hour non-stop continuous production in industrial scenarios, and can withstand harsh complex environments such as high temperature inside enclosed cabinets, dust and humidity, continuous equipment vibration, high-power frequency conversion interference and grid voltage fluctuation. Featuring high filtering accuracy, excellent harmonic suppression effect, stable internal resistance, controllable temperature rise, strong anti-interference capability, no performance degradation and extremely low failure rate, it is widely applied in high-end CNC machine tools, heavy-duty automatic production lines, metallurgical servo equipment, injection molding machinery, complete sets of high-power variable-frequency servo systems, EMC technical renovation of old servo systems, spare parts replacement for faulty units and strategic stock of core industrial control spare parts for enterprises. It comprehensively guarantees stable operation of high-power servo systems and clean power supply in factory grids.
2. Functional Features
2.1 Matched for 45kW High Power, Dedicated for Heavy-duty Servos
Customized for 45kW high-power servo drive systems with a rated carrying current of 80A, it perfectly meets the input load requirements of Rexroth HMV and HMS full-range high-power power modules and servo drives. Deeply optimized for working conditions with instantaneous large current impact, frequent acceleration and deceleration and dynamic heavy load fluctuation of high-power servos, it can stably bear peak load current of servo systems and prevent input overload, sharp harmonic increase and grid disturbance. It is an indispensable pre-purification unit for high-power servo systems.
2.2 High-order EMC Electromagnetic Filtering for Thorough Grid Interference Purification
Adopting Rexroth original high-order multi-stage LC filtering architecture, it accurately filters high-frequency switching noise, power frequency harmonics, common-mode interference, differential-mode interference and pulse clutter generated during servo variable-frequency operation. It effectively suppresses outward electromagnetic radiation of servo systems and blocks reverse interference from grid-side fluctuation, clutter and surge to servo drives. It purifies the power supply link from two directions, completely solving the industry problem that high-power servo equipment interferes with surrounding sensors, precision instruments, communication equipment and weak current control systems, and ensures EMC-compliant operation of the whole electrical control system.
2.3 Natural Convection Heat Dissipation for Long-term Low-temperature Stable Operation
It adopts passive natural convection heat dissipation design with no external cooling fans, resulting in no rotational loss, no fan failure and no dust blockage risk. The heat dissipation air duct of the body is optimized through original manufacturer fluid simulation, delivering uniform heat dissipation and controllable temperature rise. No local overheating, thermal attenuation or parameter drift occurs during long-term full-load operation. Featuring an extremely simple structure and ultra-high reliability, it completely avoids the drawbacks of traditional fan-cooled modules such as easy dust accumulation, abnormal noise, damage and frequent maintenance, suitable for unattended long-term industrial operation scenarios.
2.4 Integrated Design with Compact Structure and Strong Compatibility
Multiple functions including input filtering, surge protection, impedance matching and harmonic suppression are integrated into a single device. It replaces traditional discrete filters, reactors and protective components, greatly simplifying the input architecture of servo cabinets, reducing equipment redundancy, lowering wiring complexity and saving cabinet installation space. Natively compatible with electrical logic and installation specifications of Rexroth high-power servo systems, it can be used out of the box without complex parameter matching, fitting complete set construction and technical renovation & replacement of new and old equipment.
2.5 Full-range Electrical Protection to Prevent Propagation of Input-side Faults
Built-in multi-layer electrical protection mechanisms including overvoltage suppression, surge absorption, overload current limiting and short-circuit buffering. It effectively absorbs instantaneous high-voltage surges, lightning surges and voltage spikes from the grid, and buffers sudden current changes of servo systems, preventing expensive rear-end servo power supplies, drive cards and power units from being damaged by abnormal input impacts. It improves the anti-shock capability and operation fault tolerance of the whole servo system from the front-end link, and greatly reduces risks of servo system alarms, tripping and hardware burnout.
2.6 Industrially Reinforced Enclosure with Anti-aging and Anti-disturbance Performance
The whole machine adopts a high-strength metal reinforced enclosure with stable structure, good seismic and vibration resistance and low deformation tendency. It can withstand harsh working conditions such as high-frequency vibration of industrial equipment, alternating temperature difference, dust accumulation and enclosed humid environment for a long time. Core filter inductors, capacitors and resistors are power-grade long-life components, which have passed original manufacturer full-load aging and extreme condition tests. They feature excellent insulation performance and high temperature resistance without performance degradation during long-term operation, greatly cutting daily maintenance and spare parts replacement costs of servo systems.
3. Technical Parameters
3.1 Core Adaptation Parameters
Model: HZF01.1-W045N Part No.: R911286617 Brand: Bosch Rexroth Series: Indramat HZF Series Servo Input Filter Module Type: High-power Servo Integrated EMC Input Filter Matched Power: 45kW-class high-power servo drive system Compatible Equipment: Rexroth HMV power modules, HMS servo drives, HCS high-power servo systems Core Functions: Grid harmonic suppression, high-frequency clutter filtering, EMC electromagnetic compatibility purification, surge protection, input impedance matching, servo system grid isolation Application Scenarios: Complete set construction of new high-power servo equipment, EMC technical renovation of old servo systems, replacement of faulty filter modules, stock of core industrial control spare parts
3.2 Electrical Performance Parameters
Rated Matched Power: 45kW Rated Operating Current: 80A Operating Frequency: 50/60Hz universal industrial power frequency Filtering Method: Multi-stage LC passive high-order filtering Heat Dissipation Method: Natural convection heat dissipation (fanless passive heat dissipation) Anti-interference Type: Full-range suppression of common-mode interference, differential-mode interference, high-frequency harmonics and pulse surges Electrical Characteristics: Stable input impedance, high harmonic absorption rate, excellent current waveform correction effect
3.3 Physical Structure Parameters
Overall Dimensions: 498mm(H) × 175mm(W) × 262mm(D) Unit Weight: Approx. 10.9Kg (24 lbs) Enclosure Material: High-strength industrial metal reinforced housing Protection Class: IP10 industrial standard protection Mounting Method: Standard vertical cabinet mounting, suitable for regular layout of servo control cabinets Wiring Method: Standard industrial terminal wiring with standardized and reliable connections
3.4 Operating Condition Parameters
Operation Mode: Supports 7×24-hour non-stop full-load continuous operation all year round Load Characteristics: Adaptable to servo dynamic loads, instantaneous peak impact loads and variable loads with frequent start-stop Operating Features: Low loss, low temperature rise, no noise, no high-frequency resonance Filtering Effect: Effectively improves grid current waveform and reduces outward electromagnetic interference of servo equipment Stability Characteristics: No parameter drift, no attenuation of filtering performance and no resonance abnormality during long-term operation
3.5 Environmental Adaptation Parameters
Operating Temperature: -5℃～+55℃ wide-range industrial adaptation Storage Temperature: -20℃～+70℃ Operating Humidity: 5%～95%RH (non-condensing) Environmental Resistance: Tolerates industrial dust, slight humidity, continuous equipment vibration and electromagnetic interference Certification Standards: CE EU EMC certification, UL safety certification, complying with high-grade industrial electrical specifications
4. Hardware Configuration and Structural Advantages
4.1 Core Hardware Configuration
The Rexroth HZF01.1-W045N filter module adopts exclusive high-power filtering hardware architecture for Rexroth HZF series. It is equipped with multi-stage high-precision filter inductors, high-frequency absorption capacitors, current-limiting damping resistors, surge suppression loops and impedance matching units. Partitioned isolation layout is adopted for internal circuits with separated strong and weak current wiring, completely eliminating cross-interference of filter loops, high-frequency resonance and heat accumulation. Core electrical components are power-grade high-temperature resistant, low-loss and long-life materials, verified by original manufacturer 45kW full-load durability test, high-frequency disturbance test and extreme temperature aging test. Deeply optimized for high-power servo frequency conversion interference, instantaneous current impact and long-term continuous operation, it has stable filtering performance, strong harmonic suppression capacity, low operating loss, excellent impact resistance and no long-term performance degradation. It can independently complete full-dimensional electromagnetic purification and electrical protection for the input side of high-power servo systems.
4.2 Structural Design Advantages
The equipment adopts an integrated compact reinforced enclosure design with regular shape, high structural strength and anti-loosening & anti-vibration performance, adapting to long-term vibration operation environment of industrial cabinets. The passive natural convection heat dissipation air duct is optimized by fluid simulation with smooth air flow and uniform heat dissipation, avoiding the defects of fan-cooled structures such as high failure rate, dust blockage and loud noise to realize maintenance-free long-term operation. The terminals on the enclosure are arranged neatly with clear separation of input and output ports, facilitating standard on-site wiring, inspection and troubleshooting. The whole machine adopts insulation, flame retardant and anti-oxidation protection process with outstanding temperature and humidity resistance and anti-aging performance, which can effectively prevent hardware aging and performance degradation caused by high temperature in enclosed cabinets, dust accumulation and alternating temperature difference. The standardized cabinet mounting structure fits most complete cabinet layouts of Rexroth high-power servo systems, supporting in-situ replacement and easy assembly & disassembly, greatly reducing technical renovation and operation & maintenance costs.
5. Working Principle
The Rexroth HZF01.1-W045N input filter module adopts a full-link electromagnetic purification mechanism: grid input access → surge impact absorption → multi-stage LC high-frequency filtering → harmonic correction and purification → impedance matching and voltage stabilization → pure power frequency output, realizing bidirectional electromagnetic isolation and grid harmonic governance.
The equipment is connected in series between the industrial power grid and the servo drive. After mains power enters the module, the built-in surge suppression unit first absorbs instantaneous high-voltage spikes, lightning surges and voltage shocks from the grid, blocking abnormal transient voltage from entering rear-end servo equipment. Then the current flows into the multi-stage LC filter loop to layer by layer filter high-frequency switching harmonics, common-mode & differential-mode interference and pulse clutter generated during servo frequency conversion operation, correct distorted current waveforms and improve grid power quality. Meanwhile, the built-in impedance matching unit stabilizes input impedance and suppresses current resonance and voltage drift caused by dynamic fluctuation of servo loads, preventing grid disturbance and equipment interference induced by frequent start-stop and sudden load changes of servo systems.
The purified power frequency power after full-link purification and voltage stabilization is stably supplied to the rear-end Rexroth high-power servo drive system. It not only isolates grid-side clutter interference to servo equipment, but also restrains servo frequency conversion interference from leaking out and polluting factory grids. It bidirectionally guarantees stable operation of servo systems and EMC compliance of factory grids, enabling long-term, precise and interference-free operation of high-power servo equipment.
6. Application Scenarios
6.1 Supporting Purification for 45kW High-power Servo Systems
Specially matched with Rexroth HMV, HMS and HCS series 45kW-class high-power servo drive equipment. It serves as the core pre-filter unit for heavy-duty CNC machine tools, large gantry machining centers, high-end stamping and forming equipment, metallurgical rolling servo equipment and high-power assembly line drive systems. It effectively solves problems such as excessive grid harmonics, equipment interference, jitter of sensor signals and misoperation of electrical control systems caused by operation of high-power servos, and guarantees machining accuracy and operation stability of high-end precision heavy-duty equipment.
6.2 EMC Compliance Rectification for Industrial Workshops
For industrial scenarios where high-power servo equipment produces excessive electromagnetic radiation and interferes with surrounding precision instruments, weak current control systems and communication equipment, it can rapidly complete technical renovation of system electromagnetic compatibility, purify grid harmonics and suppress high-frequency interference. It makes the whole automation equipment meet industrial EMC compliance standards, eliminates production abnormalities, detection deviations and equipment faults triggered by electromagnetic interference, and meets the clean electric control operation requirements of precision production workshops.
6.3 Core Strategic Spare Parts for Industrial High-power Servos
HZF01.1-W045N is a key front-end core spare part for Rexroth high-power servo systems. Equipment failure will directly lead to excessive interference of servo systems, failure to put into operation and complete machine shutdown. As strategic reserve spare parts of enterprises, it can quickly handle sudden faults such as aging filter modules, performance degradation, circuit damage and abnormal interference on site, rapidly restore normal equipment operation, avoid losses caused by unplanned shutdown, and satisfy daily maintenance and emergency repair demands of high-end automation enterprises.
