Title: Siemens SINAMICS S120 Single Motor Module 21A – High Performance Drive Control

Product Overview: The Siemens SINAMICS S120 Single Motor Module, part number 6SL3120-1TE21-8AA4, is an essential component of the highly flexible and powerful SINAMICS S120 drive system, engineered for demanding single-axis applications in industrial automation. This 21 Ampere (A) motor module delivers precise and dynamic control for a wide range of motors, ensuring optimal performance, energy efficiency, and reliability in complex motion control tasks. Designed for seamless integration into existing and new industrial setups, it provides robust power conversion and advanced control capabilities, making it an ideal solution for industries requiring high accuracy and rapid response times. Its compact design and internal air cooling optimize space utilization within control cabinets, contributing to a streamlined and efficient system architecture.

Key Features & Benefits:

High Dynamic Performance: Provides exceptional acceleration and deceleration capabilities for precise motion control, crucial for fast-paced industrial processes.
Precise Speed and Torque Control: Ensures accurate regulation of motor speed and torque, leading to superior product quality and process consistency.
Integrated Safety Functions: Features built-in safety functions such as Safe Torque Off (STO) and Safe Stop 1 (SS1) for enhanced operational safety and compliance with machine directives.
Modular and Flexible Design: As part of the SINAMICS S120 system, it offers high flexibility for system expansion and adaptation to various application requirements.
Energy Efficiency: Advanced control algorithms and efficient power electronics contribute to reduced energy consumption and lower operating costs.
Robust Industrial Construction: Built to withstand harsh industrial environments, ensuring long-term reliability and minimal downtime.
Optimized for Single-Axis 
Applications:
 Specifically designed to deliver peak performance for individual motor control, from simple positioning to complex synchronized movements.
Easy Commissioning and Diagnostics: Compatible with Siemens STARTER and SCOUT engineering tools for intuitive setup, parameterization, and troubleshooting, simplifying maintenance.
Internal Air Cooling: Efficiently dissipates heat, allowing for compact cabinet designs without requiring external cooling solutions.
Wide Compatibility: Seamlessly integrates with various Siemens SINAMICS S120 Control Units, Line Modules, and a broad range of synchronous and asynchronous motors.

Applications:

Machine Tools: For precise axis control in milling, turning, grinding, and drilling machines.
Printing Machines: Ensuring accurate paper registration and high-speed web handling.
Packaging Machines: Enabling rapid and precise product handling, filling, and sealing operations.
Textile Machines: Controlling intricate movements in weaving, spinning, and knitting processes.
Plastics Processing Machines: For precise control of injection molding, extrusion, and blow molding equipment.
Cranes and Hoisting Gear: Providing smooth and controlled lifting and lowering operations.
Test Stands: Delivering accurate and repeatable motion for product testing and validation.
General Automation and Motion Control Systems: Applicable across various industries requiring high-performance single-axis drive solutions.

Technical Specifications:

Part Number: 6SL3120-1TE21-8AA4
Alternative Part Number: 6SL31201TE218AA4
Product Type: SINAMICS S120 Single Motor Module
Rated Output Current: 21 A
Cooling Method: Internal Air Cooling
Input Voltage: DC Link Voltage (typically 600V DC or 800V DC, derived from Line Module)
Overload Capability: 300% for 5 seconds, 150% for 60 seconds (typical)
Communication Interface: DRIVE-CLiQ (standard for SINAMICS S120 system communication)
Protection Class: IP20
Weight: 3.5 kg (7.7 lbs)
Dimensions (Approximate): 50 mm (W) x 380 mm (H) x 270 mm (D)
Operating Temperature: 0 to 50 °C (32 to 122 °F)
Storage Temperature: -25 to 70 °C (-13 to 158 °F)
Relative Humidity: 5 to 95% (non-condensing)