Siemens 6SL3420-1TE13-0AA0 Booksize Single Axis Drive Inverter

Siemens 6SL3420-1TE13-0AA0: Compact Booksize Single Axis Drive Module for Precision Motion Control

The Siemens 6SL3420-1TE13-0AA0 is a single axis drive module from the SINAMICS S120 family, engineered for precision and efficiency in multi-axis automation systems. This booksize drive inverter delivers controlled power from a common DC bus directly to one motor, enabling precise control over speed and torque in a compact, internally air-cooled unit. Designed for seamless integration into control cabinets, it offers a reliable and scalable solution for a vast range of industrial applications, from packaging and material handling to industrial robotics. Its modular design and advanced control capabilities make it a fundamental component for modern motion control architectures.

1. Product Overview and System Integration

The Siemens 6SL3420-1TE13-0AA0 operates as a key power component within the SINAMICS S120 multi-drive system. It functions as an inverter, drawing power from a central 600V DC bus supplied by a separate Line Module (such as a Basic, Smart, or Active Line Module) and converting it into a controlled three-phase AC output for the motor.

This single axis drive module is designed with a focus on high-density mounting. Its slim, booksize form factor allows multiple units to be installed side-by-side on a mounting rail, dramatically optimizing space within control panels. While the module itself contains the power electronics, it relies on a separate Siemens Control Unit (e.g., CU320-2) for its intelligence. The Control Unit executes all motion control tasks and communicates with the drive module via the integrated DRIVE-CLiQ interface. This digital connection enables automatic configuration, real-time monitoring, and comprehensive diagnostics, streamlining the entire lifecycle from commissioning to maintenance.

2. Detailed Technical Specifications

The 6SL3420-1TE13-0AA0 is defined by robust technical parameters that underscore its suitability for demanding industrial environments. It accepts a DC link input voltage ranging from 510 to 720 V DC and provides a three-phase AC output up to 400V.

In terms of output performance, the module has a rated current of 3 Amps and a basic load current of 2.6 Amps, supporting motors with a typical power rating of 1.6 kW. It employs an advanced IGBT-based inverter with vector control technology to ensure high dynamic performance and smooth motor operation across the entire speed range. For thermal management, it uses an efficient internal air-cooling system—sufficient for its compact design without requiring external ducting.

The booksize drive inverter is equipped with a wide array of interfaces for seamless system integration, including two DC link interfaces via integrated busbars, a 24 V DC electronics power supply connection, and three DRIVE-CLiQ ports for communication and control. Additional features include a motor connection via a plug connector, a safe torque off (STO) input for safety, a brake control output, and a temperature sensor input. In terms of physical dimensions, the module is compact: 50mm in width, 270mm in height, and 226mm in depth, with a weight of approximately 2.7 kg.

3. Core Features and Design Advantages

3.1 Dedicated Single-Axis Control Architecture

As a dedicated single axis drive module, the 6SL3420-1TE13-0AA0 provides focused control for one motor. This simplifies commissioning and troubleshooting, as all parameters and diagnostics for that specific axis are contained within a clear and isolated control loop managed by the overarching Control Unit.

3.2 Space-Optimized Booksize Form Factor

The booksize design is a key enabler for building compact control cabinets. This standardized, narrow format allows for high-density mounting, meaning machine builders can integrate more drive axes into a smaller footprint— a critical advantage in today's manufacturing landscape where panel space is often at a premium.

3.3 Advanced Vector Control and Optimized Pulse Patterns

The module executes sophisticated vector control algorithms dictated by the Control Unit, enabling precise regulation of both speed and torque for high dynamic response in demanding applications. Additionally, it utilizes optimized pulse patterns, which contribute to smoother motor operation, reduced switching losses, and lower audible noise from the motor.

3.4 Integrated Safety and Comprehensive Diagnostics

The module supports Siemens' "Safety Integrated" functions, including a safe torque off (STO) input—allowing it to be part of a machine's overall safety system and help achieve required safety integrity levels. The DRIVE-CLiQ interface provides real-time access to operational data (e.g., output current, module temperature) and detailed fault codes, enabling predictive maintenance and rapid troubleshooting to minimize potential downtime.

4. Performance and Application Benefits

The technical design of the 6SL3420-1TE13-0AA0 translates into direct benefits for machine builders and end-users:

Enhanced System Flexibility and Scalability: In complex machinery with multiple moving axes, using individual single axis drive modules creates a modular, scalable architecture. System designers can easily add or modify drive axes without significant redesign, offering great flexibility for custom machines or future expansions.

High Dynamic Performance and Precision: The combination of powerful vector control algorithms and fast-switching IGBT technology delivers excellent dynamic performance. This is crucial for applications requiring rapid acceleration/deceleration, precise positioning, and consistent torque output—directly contributing to high product quality and throughput.

Simplified Maintenance and Reduced Downtime: The DRIVE-CLiQ system enables the Control Unit to automatically recognize the module. This "plug-and-play" functionality, paired with centralized diagnostics and parameter management, drastically reduces commissioning and maintenance time. Engineers can quickly identify and address issues, boosting overall system availability.

5. Expanded Perspective: The Role of Booksize Drives in Industrial Automation

Understanding the system architecture and strategic position of this booksize drive inverter is key to appreciating its value in modern industrial automation.

5.1 The Booksize Drive Inverter in a Multi-Axis System

The SINAMICS S120 system features a hybrid architecture that leverages centralized intelligence and distributed power conversion:

Centralized Intelligence (Control Unit): A single Control Unit (CU) acts as the "brain" of the entire drive system, housing processing power for all motion control tasks—from basic velocity control to complex interpolated axis movements. This centralization simplifies programming and data management.

Distributed Power (Motor Modules): The single axis drive module (like the 6SL3420-1TE13-0AA0) serves as the "muscle". Physically located close to the motors they control, these modules reduce the length of expensive motor power cables and minimize electromagnetic interference (EMI). Fed from a common DC bus, this distributed power stage creates a clean, efficient, and scalable power distribution network.

Selection Insight: This architecture is ideal for machine builders needing to control multiple axes with high coordination—avoiding the cost and cabling complexity of using individual standalone drives for each axis.

5.2 Critical Considerations for Implementation

Successfully integrating a system based on this compact drive module requires attention to key details:

System Sizing and Coordination: The single axis drive module must be sized to match the motor’s continuous and peak current requirements. Additionally, the upstream booksize Line Module (ALM, SLM, or BLM) must be sized to supply the combined power of all motor modules on the common DC bus.

Cooling and Clearances: While the module is internally cooled, the control cabinet’s overall thermal management must handle total heat dissipation from all components. Adhering to Siemens’ installation guidelines for minimum clearances between modules is essential to ensure adequate airflow and prevent overheating.

Configuration and Safety: The entire drive system is configured via Siemens’ SINAMICS Startdrive software within the TIA Portal—an integrated environment that streamlines commissioning. Safety functions (e.g., Safe Torque Off/STO) are implemented via the Control Unit and routed to the motor module through the DRIVE-CLiQ network.

Frequently Asked Questions (FAQs)

1. What is the key difference between this Motor Module and a standalone Servo Drive?

A single axis drive module is a power amplifier that relies on a central Control Unit for intelligence and motion control capabilities. A traditional standalone servo drive integrates both the power stage and control processor in one housing. The modular S120 approach with this booksize drive inverter offers greater flexibility, easier coordination in multi-axis systems, and a more compact overall footprint.

2. Can this 3A module control any type of motor?

This module is designed to control both AC induction motors and synchronous servo motors. The specific motor type must be accurately configured in the central Control Unit, which then applies the appropriate control algorithm (e.g., vector control for induction motors). The motor’s nameplate data is essential for optimal performance.

3. Why is the DRIVE-CLiQ connection so important?

DRIVE-CLiQ enables automatic topology detection. When the system is powered on, the Control Unit automatically identifies all connected booksize drive inverter modules and their network positions. This eliminates manual addressing, reduces commissioning time, and provides a clear system structure overview for diagnostics and maintenance.

4. What is meant by "common DC bus" and what is its advantage?

A common DC bus system uses a single, powerful Line Module to create a central 600V DC bus. Multiple single axis drive modules (like the 6SL3420-1TE13-0AA0) draw power from this bus to drive individual motors. The key advantage is efficiency: braking energy from one motor can be reused by other motors on the same bus, reducing overall energy consumption and heat generation.

5. What are the primary maintenance requirements for this module?

Maintenance is largely preventative. The primary focus is ensuring cooling paths are clean and unobstructed. The most effective tool is monitoring: using DRIVE-CLiQ integrated diagnostics to track operating hours, component temperatures, and logged faults for predictive maintenance. Periodically checking the tightness of power connections during scheduled downtime is also recommended.