Description
The Siemens 6SL3130-7TE31-2AA3 is a SINAMICS S120 Active Line Module (ALM) designed for high-power industrial motion control and multi-axis servo drive systems. It converts incoming 3-phase AC power into a regulated DC link voltage and enables regenerative braking energy to be fed back into the electrical grid, improving overall energy efficiency.
🔧 Basic Identification
| Feature | Details |
|---|---|
| Manufacturer | Siemens |
| Product Series | SINAMICS S120 |
| Part Number | 6SL3130-7TE31-2AA3 |
| Product Type | Active Line Module (ALM) |
| Frame Size | Booksize |
| Input Voltage | 3-phase 380–480 V AC |
| Output Voltage | 600 V DC |
| Rated Current | 210 A |
| Rated Power | 120 kW |
| Cooling Method | Internal air cooling |
| Communication | DRIVE-CLiQ |
📌 Siemens classifies this unit as a SINAMICS S120 Active Line Module for 120 kW applications, used as the power infeed and regenerative energy management module within multi-axis drive systems.
⚙️ Main Functions
The 6SL3130-7TE31-2AA3 is designed to:
- Convert 3-phase AC input into a regulated DC bus voltage
- Supply DC link power to SINAMICS S120 Motor Modules
- Return regenerative braking energy back to the power grid
- Stabilize DC bus voltage during dynamic load changes
- Improve power factor and reduce harmonic distortion
- Support high-performance synchronized motion systems
Unlike conventional rectifier units, the Active Line Module uses an IGBT-based active front end that allows bidirectional power flow.
📋 Technical Specifications
| Specification | Value |
|---|---|
| Input Supply | 3 AC 380–480 V |
| Frequency | 47–63 Hz |
| Rated Power (S1) | 120 kW |
| Output Voltage | 600 V DC |
| Rated DC Link Current | 210 A |
| Electronics Supply | 24 V DC |
| Protection Class | IP20 |
| Cooling | Internal air cooling |
| Mounting Style | Booksize |
🧠 System Role
In a SINAMICS S120 architecture:
Control Unit (CU)
→ controls
Active Line Module (6SL3130-7TE31-2AA3)
→ generates regulated DC bus power for
Motor Modules
→ drive
servo motors
The Active Line Module acts as the central power supply and regenerative energy management unit for the complete servo drive system.
🔋 Advantages of Active Line Technology
- Regenerative energy returned to the electrical grid
- Reduced heat generation compared to braking resistor systems
- Near-unity power factor
- Stable DC link voltage
- Lower harmonic distortion
- Higher energy efficiency in dynamic servo applications
- Reduced operating costs in large motion-control systems
🏭 Typical Applications
- CNC machine tools
- Robotics systems
- Packaging machinery
- Printing and converting equipment
- Material handling systems
- Multi-axis industrial automation
- SINUMERIK CNC platforms
- SIMOTION motion-control systems
🔍 Comparison Within the Series
| Model | Rated Current | Rated Power |
|---|---|---|
| 6SL3130-7TE25-5AA3 | 92 A | 55 kW |
| 6SL3130-7TE28-0AA3 | 132 A | 80 kW |
| 6SL3130-7TE31-2AA3 | 210 A | 120 kW |
The 6SL3130-7TE31-2AA3 is designed for larger SINAMICS S120 installations requiring higher DC bus capacity and increased regenerative performance.
🧾 Short Website Description
The Siemens 6SL3130-7TE31-2AA3 is a SINAMICS S120 Active Line Module rated at 120 kW and 210 A, designed for high-performance multi-axis servo drive systems. It converts 3-phase AC power into a regulated 600 V DC link while enabling regenerative energy feedback to the mains, making it ideal for CNC machines, robotics, and advanced industrial automation applications.