Siemens 6SL3320-1TE32-1AA3 Chassis Mount Single Motor Module

Siemens 6SL3320-1TE32-1AA3 Chassis Mount Single Motor Module: A High-Power Drive Solution for Demanding Industrial Applications

The Siemens 6SL3320-1TE32-1AA3 is a robust Chassis Mount Motor Module within the renowned SINAMICS S120 drive system. This specific model is engineered as a Single Motor Module, designed to provide precise and powerful control for high-demand industrial motors. With a substantial output current of 210A and a chassis-style construction, it is built for applications where reliability, power density, and seamless integration into a common DC bus system are paramount. Ideal for heavy-duty tasks in sectors like material handling, metal processing, and large-scale automation, this module exemplifies Siemens' commitment to performance and durability in industrial motion control.

1. Product Overview & System Integration

The 6SL3320-1TE32-1AA3 functions as a key component in the SINAMICS S120 "common DC bus" architecture. In this system, a central power supply unit (such as a Basic, Smart, or Active Line Module) provides a stable 600V DC bus, from which this Single Motor Module draws power to drive a single motor.

This architecture is highly efficient for multi-drive systems, as it allows for centralized power management and the regeneration of braking energy from other axes. The module operates under the command of a separate Siemens Control Unit (e.g., CU320-2), which houses the motion control intelligence. Communication between the Control Unit and the motor module is facilitated via the integrated DRIVE-CLiQ interface, enabling automatic configuration, real-time diagnostics, and coordinated motion control across the entire system.

2. Detailed Technical Specifications

The table below outlines the core technical parameters of the 6SL3320-1TE32-1AA3 module, highlighting its capabilities as a high-power drive component:

Article Number    6SL3320-1TE32-1AA3    

Product Type    SINAMICS S120 Single Motor Module    

Design    Chassis Mount, Internal air cooling    

Input Voltage    600 V DC    

Output Voltage    3 AC 400 V    

Rated Output Current    210 A    

Communication    DRIVE-CLiQ    

Safety Functions    Support for extended Safety Integrated functions    

Net Weight    88.000 Kg    

Country of Origin    Germany    

3. Core Features & Design Advantages

The 6SL3320-1TE32-1AA3 integrates key features that make it a robust, intelligent choice for high-power drive applications:

High-Power Single-Axis Control: As a dedicated Single Motor Module, it delivers focused performance for one high-power motor. This simplifies control logic and diagnostics for the specific axis, making commissioning and troubleshooting more straightforward than shared drive systems.

Robust Chassis Mount Construction: Engineered for durability and heat dissipation in harsh industrial environments. Its sturdy metal casing and integrated internal air-cooling system handle the significant heat generated by 210A continuous current, ensuring operational stability and longevity.

Integrated Safety & Diagnostics: Supports Siemens’ comprehensive "Safety Integrated" functions (e.g., Safe Torque Off/STO). The DRIVE-CLiQ interface provides real-time access to operational data (output current, module temperature, fault codes) for predictive maintenance and rapid troubleshooting.

Optimized Performance via DRIVE-CLiQ: The digital DRIVE-CLiQ connection enables automatic module identification and parameter recognition by the Control Unit. This "plug-and-play" functionality cuts commissioning time and ensures optimal system configuration.

4. Performance & Application Benefits

The chassis-mounted design of this module translates to direct value for machine builders and end-users in heavy industries:

Superior Power for Demanding Loads: With 210A output, it drives large motors for heavy machinery—ideal for large conveyor drives, crushers, extruders, and main axes of large machine tools where high torque and power are essential.

Enhanced System Reliability: Chassis-type construction and internal cooling withstand the electrical/mechanical stresses of continuous high-power operation, boosting overall system uptime and reducing critical process failures.

Simplified Multi-Axis System Design: Within a common DC bus system, individual high-power Single Motor Modules enable a clean, scalable architecture. Designers can match drive components to each axis’s power needs, optimizing overall system cost and performance.

5. Expanded Perspective: Selecting & Applying High-Power Chassis Mount Motor Modules

Understanding the application scenarios and selection logic of high-power chassis mount motor modules is critical for optimal industrial automation system design.

5.1 Ideal Application Scenarios

This module excels in industrial scenarios demanding high power and robustness:

Heavy-Duty Material Handling: Controls drives in port cranes, large hoists, mining conveyors, and automated storage/retrieval systems (AS/RS)—applications requiring high starting and peak torque.

Process Industries: Drives main process motors in metal processing (e.g., rolling mills), cement production, and plastics manufacturing (e.g., extruders, injection molding machines) that operate under constant heavy loads.

Large Test Benches & Simulators: Paired with regenerative Line Modules (ALM/SLM), it provides an efficient solution for dynamometers and test equipment needing high-power motoring/regeneration.

5.2 Booksize vs. Chassis Mount Motor Modules

The choice between the two is a foundational design decision based on power and cooling requirements:

Aspect

Booksize Motor Modules

Chassis Mount Motor Modules (This Model)

Power Range    Lower to medium power    High power (typically above ~90kW)    

Form Factor    Compact, standardized for high-density cabinet mounting    Larger, self-contained assembly    

Cooling System    Relies on system-level airflow    Dedicated internal cooling (independent of cabinet airflow)    

Mounting Method    Side-by-side on mounting rails inside control cabinets    Direct mounting on chassis/backplate (flexible mechanical layout)    

Primary Use Case    Maximize axis count in compact cabinets for low-to-medium power applications    High-power applications requiring robust construction and dedicated cooling    

Selection Insight: Chassis Mount Motor Modules are the default choice for high-power scenarios (≥90kW) needing robust cooling and durability. Booksize modules are preferred for maximizing axis density in low-to-medium power systems.

5.3 Critical Implementation Considerations

Successful integration of the 6SL3320-1TE32-1AA3 requires attention to key details:

Upstream Component Sizing: The Line Module (BLM/SLM/ALM) supplying the DC bus must be sized to handle the combined peak current of all connected motor modules—ensure the Line Module, breakers, and fuses match the 210A module’s requirements.

Cooling & Clearances: Install the module in a well-ventilated area and adhere to Siemens’ installation guidelines for minimum clearances. Keep air intake vents and heatsinks clean to maintain cooling efficiency and prevent thermal overload.

Control Unit & Configuration: A compatible Siemens Control Unit (e.g., CU320-2) is mandatory. Configure the entire drive system via Siemens’ SINAMICS Startdrive software within the TIA Portal for seamless engineering.

6. Frequently Asked Questions (FAQs)

1. What is the primary advantage of Chassis Mount design over Booksize modules?

The key advantage is power handling and thermal management. Chassis Mount modules are larger to accommodate high-power electronics and dedicated cooling systems (for 210A in this case), ensuring reliable operation under heavy loads. Booksize modules are limited by their compact size and shared cooling.

2. Can this Single Motor Module work with any Siemens Control Unit?

It is compatible with S120 Control Units like the CU320-2, but compatibility and performance must be verified. The Control Unit needs sufficient processing power to support required control functions, especially for multi-axis high-power systems.

3. What are the key maintenance points for this high-power module?

Focus on cooling system integrity: regularly clean air intake vents and heatsinks to ensure airflow. Monitor module temperature and fan status via controller diagnostics for predictive maintenance. Check high-power connection tightness during scheduled downtime.

4. How does DRIVE-CLiQ benefit system diagnostics?

DRIVE-CLiQ enables automatic module identification and real-time monitoring of critical data (output current, temperature, status). Centralized diagnostics simplify troubleshooting and support condition-based maintenance, alerting users to potential issues before unplanned downtime.

5. What safety features does the module support?

It supports Siemens’ extended Safety Integrated functions, with Safe Torque Off (STO) as a core feature. STO safely cuts torque-producing power to the motor, ensuring personnel and machine safety during maintenance or emergencies.