Siemens 6SL3210-1SE31-1UA0 – Single-Axis Power Module for Servo & Vector Drives | SINAMICS S120 Platform
Engineering Background: The SINAMICS S120 drive system is Siemens’ flagship multi-axis servo and vector drive platform, engineered for demanding motion control applications in machine tools, packaging lines, printing presses, and industrial robots. The PM340 Power Module is the single-axis booksize variant designed for standalone or multi-axis cabinet integration, delivering precise torque and speed control with full DC-bus sharing capability.
Product Positioning: The 6SL3210-1SE31-1UA0 is a 11 kW (at 400 V) booksize Power Module operating on 3-phase AC 380–480 V input. It interfaces directly with Siemens CU320-2 or CU310-2 Control Units via DRIVE-CLiQ, enabling seamless integration into TIA Portal engineering environments. Ideal for procurement engineers sourcing certified replacement or expansion modules for existing S120 installations.
Complete Technical Specifications
| Order Number (MLFB) | 6SL3210-1SE31-1UA0 |
| Series / Platform | SINAMICS S120 Booksize |
| Module Type | PM340 Power Module (Single-Axis) |
| Rated Output Power | 11 kW (at 400 V AC) |
| Input Voltage | 3 AC 380 – 480 V (±10%) |
| Input Frequency | 47 – 63 Hz |
| Output Current (Rated) | 25 A |
| Output Current (Peak, 3s) | 37.5 A |
| DC Bus Voltage | 510 – 720 V DC |
| Pulse Frequency | 4 kHz (default); up to 16 kHz |
| Control Interface | DRIVE-CLiQ |
| Degree of Protection | IP20 |
| Cooling Method | Forced air cooling (internal fan) |
| Ambient Temperature | 0 °C to +40 °C (derated to +55 °C) |
| Storage Temperature | -40 °C to +70 °C |
| Humidity | ≤ 95% RH (non-condensing) |
| Altitude | Up to 1000 m (derated above) |
| Dimensions (H × W × D) | 380 × 60 × 270 mm (approx.) |
| Weight | ~5.07 kg |
| Certifications | CE, UL, cUL, RoHS |
| Country of Origin | Germany |
| HS Code | 8504409990 |
Proven Application Environments
- Machine Tools: CNC machining centers, grinding machines, and turning centers requiring high dynamic servo response
- Packaging Machinery: Multi-axis coordinated motion for form-fill-seal, cartoning, and palletizing lines
- Printing & Converting: Register control and tension management in web-fed offset and flexographic presses
- Robotics & Handling: Articulated arm robots and gantry systems with synchronous torque demands
- Textile Machinery: Winding, unwinding, and draw-frame drives requiring precise speed ratios
- Test Benches: Motor test stands and dynamometers with regenerative load simulation
Engineering Advantages
- DRIVE-CLiQ Integration: Single-cable digital interface to Control Unit eliminates analog wiring errors and enables automatic motor identification (SIZER/Startdrive)
- DC Bus Sharing: Booksize form factor allows energy exchange between braking and motoring axes, reducing peak grid demand and eliminating braking resistors in balanced systems
- Safety Functions Ready: Supports STO (Safe Torque Off) and SS1 (Safe Stop 1) via onboard terminals — SIL 2 / PLd compliant
- High Overload Capacity: 150% rated current for 60 s; 200% for 3 s — handles aggressive acceleration profiles without derating
- TIA Portal Native: Full parameterization, diagnostics, and firmware update via Startdrive V17+ within TIA Portal V17/V18/V19
- Compact Booksize Format: 60 mm width enables high-density cabinet layouts, reducing panel footprint by up to 40% vs. chassis units
System Architecture & Signal Flow
The 6SL3210-1SE31-1UA0 operates within the S120 booksize system as follows:
- Power Supply: Line Module (ALM/SLM/BLM) → DC bus → PM340 Power Module
- Control Path: CU320-2 / CU310-2 Control Unit → DRIVE-CLiQ → PM340 → Motor Encoder (SMC/SME module)
- Safety Channel: F-CPU (S7-1500F) → PROFIsafe → CU320-2 → STO terminals on PM340
- Engineering: TIA Portal + Startdrive → PROFINET/PROFIBUS → CU320-2 → PM340
Compatible Line Modules: 6SL3130-6AE21-0AB1 (16 kW ALM) and above. Compatible Control Units: 6SL3040-1MA01-0AA0 (CU320-2 PN), 6SL3040-1LA01-0AA0 (CU320-2 DP).
Sourcing & Quality Verification
- Origin: Sourced from authorized Siemens distribution channels and verified OEM surplus stock
- Inspection: Each unit undergoes visual inspection, label authenticity check (hologram, laser engraving), and functional power-on test before shipment
- Packaging: Ships in original Siemens ESD-safe packaging with foam inserts; anti-static bag sealed
- Documentation: EU Declaration of Conformity, calibration records, and test report available on request
- Warranty: 12-month Konmask warranty covering manufacturing defects; DOA replacement within 7 days
Procurement Process
- Submit RFQ via [email protected] or WhatsApp +0086 19859288691 with your project BOM
- Receive quotation with lead time, stock confirmation, and datasheet within 4 business hours
- Place order — payment via T/T, PayPal, or credit card; LC accepted for orders > USD 10,000
- Shipment via DHL Express / FedEx International Priority with full tracking and commercial invoice
- Post-delivery technical support: commissioning guidance, parameter backup, and Startdrive project templates available
Technical FAQ
Q: Can the 6SL3210-1SE31-1UA0 operate without a Line Module?
A: No. The PM340 requires a DC bus supplied by a compatible S120 Line Module (Active, Smart, or Basic). It cannot be connected directly to AC mains.
Q: Is a braking resistor required?
A: In multi-axis systems with an Active Line Module, regenerative energy is fed back to the grid — no resistor needed. In single-axis systems with a Basic Line Module, an external braking resistor (e.g., 6SE6400-4BD22-2EA0) is recommended for high-inertia loads.
Q: What firmware version is pre-installed?
A: Units ship with factory firmware. Siemens recommends updating to the latest version via Startdrive before commissioning. Konmask can supply firmware files on request.
Q: Is STO wiring required for basic operation?
A: STO terminals must be bridged (24 V applied) or connected to a safety relay for the drive to enable. Leaving STO open will result in fault F01611.
Q: What is the minimum order quantity?
A: MOQ is 1 unit. Volume pricing available for orders of 5+ units.
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