6SL3120-2TE21-8AA3 SINAMICS S120 Double Motor Module High Output Servo Drive

The 6SL3120-2TE21-8AA3 is a SINAMICS S120 Double Motor Module designed for high-output dual-axis servo applications within modular motion systems.

This Booksize module integrates two motor channels into a single compact unit, providing efficient control of two servo axes while reducing cabinet space and system complexity.

With 18 A / 18 A current capability, the module is suitable for automation equipment requiring reliable torque output, synchronized movement and stable axis performance.

The 6SL3120-2TE21-8AA3 can be combined with compatible control units, line modules and servo motors to create scalable multi-axis drive configurations.

Its dual-channel structure makes it suitable for demanding motion applications such as CNC equipment, robotics and automated production systems.

Key Features

• SINAMICS S120 Double Motor Module
• Dual-axis servo motor control
• 18 A / 18 A output capability
• Compact Booksize design
• High-output dual channel structure
• Internal air cooling
• Modular motion system integration
• Suitable for synchronized axis operation

Typical Applications

• CNC machines
• Robotics systems
• Packaging equipment
• Assembly machines
• Automation lines

System Function

The 6SL3120-2TE21-8AA3 provides power control for two independent servo motor axes.

Main functions:

• Dual-axis servo control
• Motor power management
• Motion synchronization
• Multi-axis system expansion

Drive System Integration

The module is typically installed with:

• Control Unit
• Line Module
• Servo motors
• Additional Motor Modules

It is not a standalone frequency converter.

Dual Axis Performance Advantage

The integrated dual motor structure provides:

• Two servo channels in one module
• Reduced cabinet installation space
• Simplified wiring
• Flexible machine configuration

Replacement Identification

Model

6SL3120-2TE21-8AA3

Configuration

Product Type

Double Motor Module

Axis Control

Two Servo Axes

Current Rating

18 A / 18 A

Format

Booksize

Protection

IP20

Before replacement, confirm:

• Exact model number
• Current rating
• Motor requirements
• Complete drive configuration

Installation Guidelines

Disconnect power before installation.

Check system compatibility.

Verify DC link connections.

Confirm cabinet cooling.

Load correct parameters.

Test both servo axes after installation.

FAQ

Q1: What is 6SL3120-2TE21-8AA3?

A1: It is a SINAMICS S120 Double Motor Module for controlling two servo axes.

Q2: Is it a complete servo drive?

A2: No. It is a motor module used in a modular motion control system.

Q3: What makes this model different?

A3: It provides dual-axis control with 18 A / 18 A current capability in a compact Booksize format.

Q4: How many axes can it control?

A4: It can control two independent servo motor axes.

Q5: What design format does it use?

A5: It uses the Booksize modular design.

Q6: Where is it commonly used?

A6: It is used in CNC machines, robotics and industrial automation equipment.

Q7: What components are required with this module?

A7: Compatible control units, line modules and servo motors are required.

Q8: Can it operate independently?

A8: No. It must be integrated into a complete SINAMICS S120 system.