The SIEMENS 6SL3710-7LE32-1AA3 SINAMICS S150 converter cabinet is a high‑performance Industrial VFD Cabinet and Motor Control Cabinet designed for robust variable frequency drive(VFD)applications in demanding industrial environments.This AC‑AC drive solution integrates a pulsed infeed power unit with energy recovery capability at 380–480 V three‑phase input,delivering a rated output power of 110 kW along with an integrated CIM and CU320‑2 controller,and a built‑in EMC filter suitable for Category C3 environments.It is commonly used as a complete drive cabinet in motor control center(MCC)architectures for heavy‑duty variable speed motor control and process optimization across industries.
Introduction:What This Product Is and Why It Matters
In modern industrial automation,controlling AC motor speed and torque efficiently and reliably is essential for energy savings,operational flexibility,and process precision.The SIEMENS 6SL3710‑7LE32‑1AA3 combines a variable frequency converter(VFD)with a robust cabinet design that includes power electronics,control modules,and filtering in one assembled unit—making it a turnkey Industrial VFD Cabinet and Motor Control Cabinet for critical applications.
This product is part of the SINAMICS S150 family,known for scalable power ratings and regenerative capabilities that enable energy feedback to the supply in applications with frequent braking or dynamic load conditions.The inclusion of the CU320‑2 control unit provides advanced drive control,network connectivity,diagnostics,and parameterization tools integrated directly at the cabinet level.
Product Overview and Key Technical Features
The SIEMENS SINAMICS S150 converter cabinet unit 6SL3710‑7LE32‑1AA3 is designed for industrial environments that demand high reliability,power density,and configurable control.Key functional components and features include:
Designed for Industrial VFD and Motor Control Cabinet Use
Rated at 110 kW output at 380–480 V AC input,suitable for medium‑to‑large motors in heavy industrial processes.
Integrated pulsed infeed supply with energy recovery,enabling regenerative braking and energy savings by returning power to the supply line under deceleration or dynamic conditions.
CIM(Converter Interface Module)and CU320‑2 control unit for advanced drive logic,diagnostics,and system integration.
Built‑in EMC filter(Category C3)supports compliance with electromagnetic compatibility requirements in industrial environments with noise control needs.
Electrical and Environmental Compatibility
Operates on three‑phase 380–480 V AC,50/60 Hz supply,which is standard in global industrial power systems.
Designed to interface with sine‑wave filters where required—enhancing motor output quality and reducing bearing currents and harmonics when properly configured.
Suitable for environments requiring higher immunity and emission standards thanks to the integrated EMC filtering.
Built‑In Control and Diagnostics
The CU320‑2 unit provides parameterization,real‑time monitoring,fault logging,and network connectivity compatible with Siemens automation ecosystems.
Facilitates commissioning using tools like Siemens STARTER or TIA Portal where applicable,enabling structured setup workflows and diagnostics.
Industrial VFD Cabinets&Motor Control Cabinets–Type and Purpose
Before diving deeper into application‑specific value,it’s valuable to understand the broader category this product belongs to:
What Is an Industrial VFD Cabinet?
An Industrial VFD Cabinet houses the power conversion electronics of a Variable Frequency Drive system—that is,the components that convert line AC power into variable frequency output to control motor speed.Unlike standalone drives,these cabinets often include additional hardware such as reactors,filters,transformers,circuit breakers,and energy recovery units.They are designed for central motor control rooms or distributed in‑plant installations where space,modularity,and protection are critical.
The SINAMICS S150 series,including this 110 kW unit,can be configured to provide regenerative operation,integrated safety,and advanced control logic—making it suitable for energy‑intensive applications with dynamic torque requirements.
What Is a Motor Control Cabinet?
A Motor Control Cabinet typically integrates not just the VFD but also supporting motor control elements like contactors,overload protection,ancillary controls,and human‑machine interface(HMI)connections.This integration enables centralized control and diagnostics of motor drives,simplifies field wiring,and enhances maintenance accessibility.
The 6SL3710‑7LE32‑1AA3 unit fits naturally into this role by combining the drive core with an enclosure designed to meet industrial electrical and safety standards.
Application Scenarios and Use Cases
This converter cabinet is engineered for environments where precision motor control,energy efficiency,and system reliability are paramount:
Heavy Conveying and Material Handling Systems
In industries such as mining,bulk materials,and logistics,motors often experience frequent changes in speed and load.The ability of this Motor Control Cabinet to regulate speed and provide regenerative feedback reduces mechanical wear and lowers energy consumption during slowdown periods.
Pumps,Compressors,and Fans in Process Industries
Large centrifugal pumps and compressors benefit from variable speed control to match flow demand and reduce power usage.Integrated filtering and advanced control logic also improve electrical quality and extend the life of motors and mechanical couplings.
Machine Tool and Production Line Integration
When integrated with higher‑level automation systems(e.g.,PLCs,SCADA),the CU320‑2 unit enables synchronized motion control,sequence logic,and predictive diagnostics that improve operational throughput and reduce downtime.
Installation,Commissioning,and Maintenance Considerations
Installing and commissioning a high‑power VFD cabinet like the SIEMENS S150 110 kW model requires careful planning and execution:
Site preparation:Provide adequate space for ventilation and service access.Industrial VFD cabinets generate heat and must be positioned to allow airflow and cooling.
Electrical integration:Ensure supply voltage compliance,correct grounding,and harmonic mitigation where required.Reuse of sine‑wave filters and proper reactor sizing improves motor performance and reduces electrical stress.
Control and network configuration:Use appropriate Siemens software tools(e.g.,TIA Portal,STARTER)for parameter setup,motor data entry,and commissioning checklists.
Value Proposition and Competitive Edge
Customers selecting this model stand to benefit from:
Energy savings through regenerative capability,which is especially impactful in applications with frequent deceleration.
Modular control architecture that supports networked automation,advanced diagnostics,and seamless expansion.
Compliance and reliability suitable for industrial power quality and environmental conditions through built‑in filtering and robust hardware.
Frequently Asked Questions(FAQs)
1.How does regenerative capability in a drive cabinet improve system efficiency?
Regenerative capability refers to the drive’s ability to feed energy back to the supply grid when the motor acts as a generator—such as during deceleration or load reduction.In large installations where motors frequently change speeds,this capability reduces wasted energy at braking resistors and can significantly lower overall power costs.Moreover,feedback to the supply reduces heat dissipation in the cabinet and contributes to better energy utilization in the facility.
Beyond savings,regenerative operation supports better electrical stability in systems with multiple drives.It balances power flows and reduces peak demand charges in facilities where utility billing includes peak load assessments.
Finally,in systems with large inertias(e.g.,cranes or winders),regenerative drives protect mechanical systems by reducing sudden load changes and lowering dynamic stresses,prolonging equipment life.
2.What are key installation best practices for high‑power VFD cabinets like this one?
When installing a high‑power VFD cabinet,it’s critical to address ventilation,grounding,and electrical integration from the outset.Provide clearances around the cabinet for heat dissipation and service access.Standard guidelines recommend segregating power and control wiring to minimize electromagnetic interference.
Grounding must be robust to prevent electrical noise issues and to protect sensitive control electronics.Use recommended cable sizes and follow local electrical code requirements.Integrate line reactors or filters where harmonics may affect other equipment.
Lastly,commissioning with manufacturer‑supported tools and following test checklists ensures parameter correctness,motor identification,and safety features(such as overcurrent and thermal monitoring)are properly configured.
3.How does the SINAMICS S150 series compare to standalone drives?
Cabinet‑based systems like the SINAMICS S150 are designed for higher power levels and more complex installations than standalone drives.While standalone VFDs excel in compact,low‑to‑medium power applications,converter cabinets provide modular scalability,better cooling capacity,integrated protection devices,and easier maintenance for high‑power or multi‑motor environments.
Moreover,cabinets often incorporate advanced filtering and regenerative options that standalone drives may lack.This makes them more suitable for facilities with stringent power quality requirements or energy efficiency goals.
4.Can this drive cabinet integrate with automation systems?
Yes,the inclusion of the CU320‑2 control unit enables connectivity with industrial automation platforms such as Siemens PLCs,SCADA systems,and network protocols commonly used in manufacturing and processing plants.Advanced control logic,parameter sharing,and remote access for diagnostics are supported.Integration facilitates centralized monitoring and allows for optimized control strategies that improve throughput and reduce unscheduled downtime.
5.What safety and compliance features are important in an Industrial VFD Cabinet?
Safety and compliance begin with proper enclosure rating and protection against electrical hazards.Industrial VFD cabinets like this one are designed with panels,interlocks,and filtering to meet EMC standards appropriate for Category C3 environments,which is critical in facilities with high noise or interference.
Internal circuits should include overcurrent protection,short‑circuit breakers,and thermal monitoring.Emergency stops and safety interlocks must be integrated per site safety standards.When commissioning,verify all protective functions and document testing to comply with local regulations and auditing requirements.
FAQ
1.Who are We?
Beijing Zhongping Technology Co., LTD., is a one-stop integrated service provider of intelligent manufacturing, belongs to the Gong Doctor Group, is a scientific research, design, marketing, technical services, industrial Internet, international import and export services as one of the science and technology companies.
2.What can you buy from us?
PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components
3.Is the item in stock or need to be purchased from another supplier?
We have a large inventory of goods and have our own warehouse.
4.What advantages do we have over other suppliers?
Our company has a large amount of inventory and a number of warehouses, but also in the country's important industrial provinces and cities with offices and a number of overseas service points. To provide you with intelligent manufacturing one-stop comprehensive services, save efforts, labor and cost.
5.Can you provide 100% new original authentic products?
We only sell new original genuine, no renovation, no fake, only for the original factory original!
6.How long is the delivery time?
If there is a stock, it will take 2-3 working days to ship, if the quantity is large, it will take 5-7 working days after receiving the payment, if it is not a conventional model, it will take some time, we will inform you of the specific delivery time.
7.Is there technical support available?
Of course, we have a professional technical team that can help you solve technical problems.
8.How do we guarantee quality?
We have three processes to control the quality of goods.
1). Our engineers will inspect the production and quality control in the factory regularly.
2) Incoming materials shall be inspected by experienced purchasing engineers before they can be stored.
3). At least 2 people in the logistics department cross-check the goods to be sent before delivery.
9.Can you guarantee the safe and reliable delivery of your products?
Yes, we strictly adopt the international standard packing. We also use special packaging for dangerous goods, and refrigerated shipping for items with temperature requirements. Special item packaging and general cargo standard packaging requirements may incur additional costs.
10.How about the freight?
The cost depends on how you choose to get the goods. Express is usually the fastest but also the most expensive way. Sea freight is the best solution for large quantities of goods. The exact shipping cost depends on the purchase amount、quantity and weight of your order. Please feel free to contact us for more information.
010-64225983
+8613811814778
info@zhongpingtech.com
Building 26, Liyuan Community, Chaoyang District, Beijing, China
