Siemens SINAMICS S120 Modules: 6SL3120-1TE26-0AA3 Single Motor Module

Technical Dossier

Product Details And Specifications

Siemens SINAMICS S120 Series Technical Notes

The Siemens SINAMICS S120 drive system is one of the most widely deployed modular servo and vector drive platforms in global heavy industry. Installed across petrochemical complexes, nuclear power auxiliary systems, offshore platforms, steel rolling mills, and large-scale paper and pulp facilities, the S120 architecture provides a unified hardware framework for multi-axis coordinated motion and single-axis variable-speed drives. Its booksize and chassis format modules share a common DC bus, enabling regenerative energy exchange between axes — a design principle that has made it the reference platform for high-cycle, high-precision industrial automation since its commercial introduction in the early 2000s.

The 6SL3120-1TE26-0AA3 is a Single Motor Module in booksize format, rated for a continuous output current of 60 A, designed for operation within the SINAMICS S120 booksize component system. It interfaces directly with the Control Unit (CU320-2 or CU310-2) via DRIVE-CLiQ and draws from a shared DC bus supplied by an Active Line Module or Smart Line Module.

The Evolution of SINAMICS S120 Architecture

The SINAMICS S120 platform succeeded the SIMODRIVE 611 series, inheriting its modular DC bus topology while introducing DRIVE-CLiQ — Siemens' proprietary serial communication interface for automatic component identification, parameter exchange, and encoder signal transmission over a single cable. Early S120 generations (circa 2003–2008) used CU320 control units with CompactFlash-based firmware storage. The transition to CU320-2 (introduced ~2010) brought onboard PROFINET IRT, extended Safety Integrated functions (STO, SS1, SLS, SDI, SSM), and support for SINAMICS Link for cross-drive synchronization without a higher-level controller.

Booksize Motor Modules evolved from single-width 3 A units to double-width 200 A units, with the current generation supporting both vector control and servo control modes selectable via parameterization. Chassis-format Power Modules extended the platform into the megawatt range for pump, fan, and compressor applications. The S120 Combi variant consolidated the Line Module and Motor Module into a single housing for space-constrained OEM applications. Compatibility between generations is maintained at the DC bus and DRIVE-CLiQ levels, though firmware version alignment between Control Unit and Power Units remains a critical integration requirement.

SINAMICS S120 Full Catalog & Functionalities (SKU List)

Active Line Modules (ALM) — Regenerative infeed, power factor correction:

• 6SL3130-7TE21-6AA3: Active Line Module, booksize, 16 kW infeed, 400 V
• 6SL3130-7TE23-6AA3: Active Line Module, booksize, 36 kW infeed, 400 V
• 6SL3130-7TE28-0AA3: Active Line Module, booksize, 80 kW infeed, 400 V

Smart Line Modules (SLM) — Non-regenerative infeed, cost-optimized:

• 6SL3130-6AE21-0AA0: Smart Line Module, booksize, 10 kW, 400 V
• 6SL3130-6AE23-0AA0: Smart Line Module, booksize, 36 kW, 400 V

Single Motor Modules (SMM) — Individual axis drive, booksize:

• 6SL3120-1TE26-0AA3: Single Motor Module, 60 A continuous, booksize, 400 V DC bus
• 6SL3120-1TE21-0AA3: Single Motor Module, 3 A continuous, booksize, 400 V
• 6SL3120-1TE23-0AA3: Single Motor Module, 9 A continuous, booksize, 400 V
• 6SL3120-1TE24-5AA3: Single Motor Module, 18 A continuous, booksize, 400 V
• 6SL3120-1TE28-5AA3: Single Motor Module, 85 A continuous, booksize, 400 V
• 6SL3120-1TE32-0AA3: Single Motor Module, 200 A continuous, booksize, 400 V

Double Motor Modules (DMM) — Dual-axis drive, space-optimized:

• 6SL3120-2TE21-0AA3: Double Motor Module, 2×3 A, booksize, 400 V
• 6SL3120-2TE23-0AA3: Double Motor Module, 2×9 A, booksize, 400 V
• 6SL3120-2TE24-5AA3: Double Motor Module, 2×18 A, booksize, 400 V

Control Units — Central motion controller:

• 6SL3040-1MA00-0AA0: CU320-2 DP Control Unit, PROFIBUS interface, up to 6 axes
• 6SL3040-1MA01-0AA0: CU320-2 PN Control Unit, PROFINET IRT interface, up to 6 axes
• 6SL3040-0PA00-0AA0: CU310-2 DP Control Unit, single-axis, PROFIBUS

Supplementary Components:

• 6SL3000-0BE23-6AA0: Line filter, 36 kW, for ALM/SLM booksize systems
• 6SL3000-0CE23-6AA0: Line reactor, 36 kW, booksize infeed

Quality Control for the SINAMICS S120 Range

SINAMICS S120 Motor Modules present specific test challenges due to their integrated DRIVE-CLiQ interface, DC bus capacitor banks, and IGBT power stage. DriveKNMS applies a structured test protocol for each unit: (1) Visual inspection of DC bus busbars, DRIVE-CLiQ port contacts, and fan assembly; (2) Capacitor ESR measurement and pre-charge circuit verification; (3) Functional power-up test using a CU320-2 PN test rig with STARTER commissioning software to confirm DRIVE-CLiQ enumeration, firmware compatibility, and parameter read/write integrity; (4) Load test at rated current using a motor simulator to verify IGBT switching waveforms and thermal management response; (5) Safety function verification (STO channel A and B) per IEC 62061 test procedures. Units that do not pass all five stages are not listed for sale.