SIEMENS 6SL3120-1TE21-8AA3 — Single Motor Module | SINAMICS S120 Booksize Platform
The SIEMENS 6SL3120-1TE21-8AA3 is a booksize-format Single Motor Module within the SINAMICS S120 modular drive system, engineered for high-dynamic servo and vector control applications in industrial automation. Designed to operate in conjunction with a Control Unit (CU320-2) and Line Module, it delivers precise torque and speed regulation for demanding motion control tasks across manufacturing, packaging, and process automation sectors.
Konmask.com sources this module directly from verified OEM channels and authorized distributors, ensuring full traceability and authenticity for every unit shipped.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6SL3120-1TE21-8AA3 |
| Product Family | SINAMICS S120 Single Motor Module |
| Form Factor | Booksize |
| Rated Output Current | 18 A (continuous) |
| Peak Output Current | 36 A (60 s) |
| DC Link Voltage | 600 V DC (nominal) |
| Output Phases | 3-phase AC |
| Control Interface | DRIVE-CLiQ |
| Safety Functions | STO (Safe Torque Off) — SIL 2 / PLe |
| Cooling Method | Forced air (internal fan) |
| Protection Rating | IP20 |
| Ambient Temperature | 0 °C to +40 °C (derated to +55 °C) |
| Storage Temperature | −25 °C to +70 °C |
| Relative Humidity | ≤ 95 % (non-condensing) |
| Altitude | Up to 1000 m (derated above) |
| Weight | Approx. 6 kg |
| Dimensions (W × H × D) | 50 mm × 380 mm × 270 mm (booksize) |
| Firmware Compatibility | SINAMICS S120 FW ≥ 4.7 |
| CE / UL Certification | CE marked; cULus listed |
Proven Application Environments
- CNC Machine Tools — Spindle and feed axis control requiring high dynamic response and precise positioning
- Packaging Machinery — Multi-axis synchronization for form-fill-seal and cartoning lines
- Printing & Converting — Tension control and register accuracy in web-fed processes
- Robotics & Handling — Servo axis modules in gantry and articulated robot cells
- Textile & Wire Drawing — Constant torque and speed regulation under variable load
- Test Benches — Regenerative load simulation with precise torque control
Engineering Advantages
- DRIVE-CLiQ Integration — Single-cable digital interface eliminates encoder wiring errors and enables automatic motor identification
- Integrated STO Safety — SIL 2 / PLe Safe Torque Off without external safety relay, reducing panel footprint
- Booksize Modularity — Snap-on DC bus bar connection; modules share a common DC link for energy exchange and regenerative braking
- Vector & Servo Modes — Supports both open-loop vector and closed-loop servo control within the same hardware platform
- Compact 50 mm Width — High power density minimizes cabinet space in multi-axis configurations
- Siemens TIA Portal Compatible — Full parameterization via STARTER, SCOUT, or TIA Portal V15+
System Architecture & Signal Flow
The 6SL3120-1TE21-8AA3 operates within the SINAMICS S120 booksize topology as follows:
- Power Supply: Active Line Module (ALM) or Smart Line Module (SLM) → DC bus bar → Motor Module
- Control: CU320-2 DP/PN Control Unit → DRIVE-CLiQ daisy chain → Motor Module → Motor encoder feedback
- Safety: F-DI inputs on CU320-2 or TM54F → STO signal path → Motor Module power stage inhibit
- Motor Output: 3-phase AC terminals → Servo motor (synchronous or induction)
Each Motor Module occupies one drive object (DO) in the CU320-2, supporting up to 6 DOs per Control Unit depending on firmware and performance class.
Sourcing & Quality Verification
- ✅ OEM-Traceable Stock — Units sourced from Siemens authorized distribution channels with verifiable batch records
- ✅ Pre-Shipment Inspection — Visual inspection, label verification, and firmware version check performed before dispatch
- ✅ Original Packaging — Shipped in Siemens OEM packaging with all original accessories and documentation where available
- ✅ Warranty Support — 12-month Konmask quality guarantee; defective units replaced or refunded
- ✅ Anti-Counterfeit Policy — Hologram label, date code, and serial number cross-referenced against Siemens product database
Procurement Process
- Submit Inquiry — Contact support@konmask.com with your required quantity and delivery timeline
- Receive Quotation — Formal quotation with unit price, lead time, and shipping options within 24 hours
- Order Confirmation — Purchase order accepted via email; proforma invoice issued
- Quality Check & Dispatch — Pre-shipment inspection completed; tracking number provided within 2 business days
- Delivery & Support — Global shipping via DHL / FedEx / UPS; post-delivery technical support available
Technical FAQ
Q: Can the 6SL3120-1TE21-8AA3 be used with a Smart Line Module (SLM)?
A: Yes. It is compatible with both Active Line Modules (ALM) and Smart Line Modules (SLM) within the SINAMICS S120 booksize family, provided the DC link voltage and power ratings are matched.
Q: What motor types are supported?
A: The module supports synchronous servo motors (1FK7, 1FT7 series) and induction motors in vector control mode. DRIVE-CLiQ-enabled motors enable automatic parameterization.
Q: Is the STO function certified for use in safety applications?
A: Yes. The integrated STO meets IEC 62061 SIL 2 and ISO 13849-1 PLe requirements when wired and commissioned per Siemens Safety Integrated documentation.
Q: What firmware version is required?
A: SINAMICS S120 firmware version 4.7 or higher is recommended. Always verify compatibility with your CU320-2 firmware before commissioning.
Q: Do you provide commissioning support?
A: Konmask offers pre-sales technical consultation and can connect you with certified Siemens system integrators. Contact support@konmask.com for details.
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