SINAMICS S120 Basic Line Module 6SL3130-1TE22-0AA0 Six-Pulse Diode Rectifier for Industrial Automation Applications

Siemens SINAMICS S120 Basic Line Module 6SL3130-1TE22-0AA0: Robust Power Conversion for Industrial Drive Systems

The Siemens SINAMICS S120 Basic Line Module (BLM) 6SL3130-1TE22-0AA0 serves as the foundational power conversion unit within Siemens’ high-performance drive ecosystem. Designed for industrial automation applications requiring reliable DC bus voltage generation, this 20 kW module transforms 3-phase AC supply (380–480 V, 50/60 Hz) into a stabilized 600 V DC output at 34 A, powering downstream motor modules in multi-axis configurations. As a non-regenerative "booksize" component, it excels in systems where energy feedback to the grid is unnecessary, such as conveyors, pumps, and fans, prioritizing cost efficiency and compact cabinet integration.

Core Functionality and Technical Specifications

The 6SL3130-1TE22-0AA0 operates as a six-pulse diode rectifier, leveraging passive components to convert AC to DC with minimal complexity. Unlike Active Line Modules (ALMs) or Smart Line Modules (SLMs), it lacks regenerative capability, making external brake resistors essential for dissipating excess kinetic energy during motor deceleration. This design trade-off reduces upfront costs and simplifies thermal management. Key technical attributes include:

• Input Compatibility: Direct operation on grounded (TN/TT) or ungrounded (IT) systems without external filters or adapters.

• Integrated Pre-charging: Features an internal pre-charging resistor to safely initialize the DC link capacitor, preventing inrush current damage.

• Safety Integration: Supports Safe Torque Off (STO) via dedicated inputs and complies with SIL 3/PLe safety standards.

• Cooling System: Utilizes internal forced-air cooling with a built-in fan, maintaining operational stability at ambient temperatures of 0–40°C (non-derated) and up to 55°C with derating.

• Environmental Robustness: Rated for installations up to 1,000 m altitude without performance loss, extendable to 4,000 m with derating.

Interfaces and System Integration

The module’s connectivity is optimized for seamless integration within SINAMICS S120 cabinets:

• Power Interfaces:

  • X1: 3-phase AC input via screw terminals (max. 16 mm² wire).

  • DC Link Output: Integrated busbars for direct connection to motor modules.

• Control and Monitoring:

  • DRIVE-CLiQ Ports (x3): Enable high-speed digital communication with control units (e.g., CU320-2) for real-time parameterization and diagnostics. A 0.11 m DRIVE-CLiQ cable is included for daisy-chaining adjacent components.

  • X21: Brake resistor connection (required for dynamic braking applications).

  • X24: 24 V DC electronic power supply (1 A max consumption) for logic circuits.

  • Temperature sensor input (KTY84-130/PTC) for thermal monitoring.

• Safety Circuitry: Dedicated terminals for STO signals and brake control outputs.

Applications and Operational Advantages

This BLM is ideal for cost-sensitive applications with unidirectional energy flow:

• Energy Efficiency: Achieves >0.96 fundamental power factor (cos φ1), reducing harmonic distortion and grid load.

• Space Optimization: Booksize format (200 mm width) allows vertical mounting alongside motor modules, minimizing cabinet footprint.

• Maintenance Simplicity: Status LEDs provide instant fault diagnostics (e.g., overvoltage, overtemperature), while standardized components simplify replacements.

• Regenerative Handling: For intermittent braking (e.g., elevator stops), external resistors connect via X21, supporting peak braking power up to 40 kW (2× rated power).

Comparative Technical Analysis

The table below contrasts the 20 kW 6SL3130-1TE22-0AA0 with higher-power BLM variants, highlighting scalability trade-offs:

Technical Specifications of SINAMICS S120 Basic Line Modules

Integration and Lifecycle Considerations

• Control Compatibility: Communicates natively with SINAMICS S120 control units (CU320-2, CX32-2) via DRIVE-CLiQ, enabling centralized parameter management in TIA Portal or Siemens Startdrive.

• Installation Constraints: Requires ≥14.8 Ω external brake resistor for 20 kW models, with cabling limited to 15 m to prevent impedance issues. Unused DRIVE-CLiQ ports must be sealed with blind plugs.

• Product Lifecycle: Classified as PM300 (Active Product) but note: Bulk production ceased in October 2018. For new installations, Siemens recommends transitioning to newer SLM or ALM variants with regenerative capabilities. Existing systems can source 6SL3130-1TE22-0AA0 as spare parts, though firmware compatibility with modern controls (e.g., CU320-2-2) requires validation.

Conclusion: Powering Efficiency in Constrained Environments

The 6SL3130-1TE22-0AA0 exemplifies Siemens’ commitment to modular, application-specific drive solutions. By omitting regenerative circuitry, it delivers a cost-optimized, maintenance-friendly rectification stage for systems where energy recovery is uneconomical. Its booksize design, integrated safety, and plug-and-play DRIVE-CLiQ integration make it indispensable for retrofits or space-limited cabinets. While newer regenerative modules offer advanced features, this BLM remains a robust choice for unidirectional applications demanding reliability over flexibility. Engineers should evaluate braking requirements and lifecycle status during selection but can leverage its simplicity for enduring performance in harsh industrial environments.