Product Overview

The 6SL3130-7TE21-6AA4 is a high-efficiency Active Line Module (ALM) designed for the SINAMICS S120 booksize drive system. This regulated infeed unit acts as the primary power source for the DC link, converting a three-phase AC supply into a stable, controlled DC voltage. Unlike standard infeed modules, the Active Line Module features regenerative capabilities, allowing braking energy to be fed back into the electrical grid rather than being wasted as heat. This 16kW unit is engineered for precision motion control applications where DC link stability is critical despite fluctuations in the line voltage. Its slim, space-optimized design and integrated DRIVE-CLiQ interface make it an essential component for high-performance multi-axis drive lineups.

Technical Infrastructure and Hardware Capabilities

• Input Voltage Range: 3-phase 380V to 480V AC ($\pm$ 10%), 50/60 Hz.

• Rated Power Output: 16kW for continuous duty cycles.

• DC Link Voltage: Regulated and adjustable between 510V and 720V DC.

• Rated Current: 27A output capacity.

• Regenerative Feedback: Fully integrated 4-quadrant operation for energy recovery.

• Communication: Digital DRIVE-CLiQ interface for automated configuration and advanced diagnostics.

• Thermal Management: Internal air cooling via integrated fans; operating range 0°C to +40°C.

• Protection Grade: IP20 rated for installation within control cabinets.

• Format: Booksize Internal Air Cooling (50mm module width).

Strategic Industrial Implementations

High-Precision Tooling and Machining

In CNC milling and grinding centers, the 6SL3130-7TE21-6AA4 ensures that the DC bus voltage remains constant even during rapid spindle acceleration. This stability is vital for maintaining the high torque required for precision cuts and preventing surface finish artifacts caused by voltage sags.

Energy-Efficient Lifting and Hoisting

For automated warehousing systems and industrial gantries, this Active Line Module captures the kinetic energy generated during the lowering of heavy loads. Instead of dissipating this energy through braking resistors, the ALM returns it to the factory grid, significantly lowering the total energy consumption of the facility.

Dynamic Packaging and Converting Lines

In high-speed packaging machinery where multiple servo axes are constantly accelerating and braking, the module provides a balanced power buffer. The active infeed technology compensates for line harmonics, ensuring that sensitive electronic components in the drive lineup are protected from electrical noise and interference.

Complex Multi-Axis Robotics

The 6SL3130-7TE21-6AA4 serves as the heart of robotic assembly cells. Its compact 50mm width allows engineers to build high-power control cabinets with a minimal footprint, while the DRIVE-CLiQ system simplifies the wiring of complex feedback loops across multiple motor modules.