Overview

The Siemens 6SL3912-5AP34-0AA0 is a high-performance Active Interface Module (AIM) designed for the SINAMICS S120 drive system within the Chassis-format range. It serves as an essential component for the Active Line Module (ALM), enabling energy regeneration and providing a clean power interface between the drive system and the power grid. This module works to reduce harmonic distortion, enhance power quality, and allow regenerative braking, ensuring optimal performance in demanding industrial applications.

Key Features

• Model: Siemens 6SL3912-5AP34-0AA0

• Type: Active Interface Module (AIM) for SINAMICS S120

• Function: Works with the Active Line Module (ALM) for regenerative braking, harmonic filtering, and energy return to the power grid.

• Cooling: Requires external fans or cabinet ventilation for optimal cooling.

• Power Ratings: Rated for 400 kW typical power at 400 V with a rated current of 605 A.

• Protection: Features harmonic suppression, pre-charging circuits, and damping resistors for high-efficiency operation.

• Input Voltage: Supports 3-phase 380–480V AC input.

• Degree of Protection: IP00 (suitable for installation within electrical cabinets).

Technical Specifications

Mechanical Specifications

System Functions

• Regenerative Braking: The AIM enables the drive to return braking energy to the power grid, reducing energy consumption and operational costs.

• Voltage Stability: Ensures a constant DC link voltage even in fluctuating input line conditions, enhancing overall system stability.

• Clean Power Interface: Actively shapes the input current to a sinusoidal wave, eliminating harmful interference to sensitive equipment and ensuring grid compatibility.

Installation & Connection

• Line Side: Connect to the power supply using a main switch and fuses (or circuit breaker).

• Load Side: Directly connects to the Active Line Module (ALM), such as 6SL3330 series.

• DRIVE-CLiQ: Monitored by the Active Line Module (ALM), which communicates with the CU320-2 Control Unit via the DRIVE-CLiQ digital interface.

Environmental Specifications

Applications

The 6SL3912-5AP34-0AA0 Active Interface Module is designed for use in high-power industrial systems, where regenerative braking and harmonic suppression are critical. Common applications include:

• Large Pumps and Fans

• Compressors

• Motion Control Systems

• Paper and Steel Mills

• Complex Industrial Automation

Frequently Asked Questions (FAQ)

Q1: What is the role of the 6SL3912-5AP34-0AA0 module in the SINAMICS S120 system?

• The 6SL3912-5AP34-0AA0 is a critical Active Interface Module (AIM) that works with the Active Line Module (ALM) to ensure efficient energy regeneration, harmonic suppression, and a clean power interface for the drive system.

Q2: Can the 6SL3912-5AP34-0AA0 module be used without an Active Line Module?

• No, the AIM is designed to work exclusively in conjunction with an Active Line Module (ALM), enabling energy regeneration and smooth system operation.

Q3: What is the maximum altitude for installing the 6SL3912-5AP34-0AA0 module?

• The 6SL3912-5AP34-0AA0 module can be installed at altitudes up to 1000 meters above sea level without derating. For higher altitudes, derating may be necessary.

Q4: What are the cooling requirements for the 6SL3912-5AP34-0AA0?

• The 6SL3912-5AP34-0AA0 requires external cooling through fans or ventilation systems, as it uses internal air cooling to maintain optimal operating conditions.