Siemens SIMOTICS S-1FL6 Standard Synchronous Servo Motors
The SIMOTICS S-1FL6 servo motor system is Siemens' premier, cost-optimized standard servo drive platform developed specifically for pairing with the SINAMICS V90 servo drive. While general low-voltage AC induction motors operate under the Innomotics brand, Siemens maintains complete ownership, R&D, and global manufacturing of this high-demand motion control portfolio.
Engineering Advantages & System Integration:
• Seamless V90 Plug-and-Play Integration: Direct electronic matching with SINAMICS V90 (Pulse/Direction PTI and PROFINET PN variants) ensures rapid commissioning via auto-tuning, automatic suppression of mechanical resonances, and optimized load adaptation.
• Dual Inertia Topologies: 1FL6 Low Inertia (LI) offers maximum dynamic responsiveness and acceleration across shaft heights 20, 30, 40, and 50 (0.05 kW to 2.0 kW); 1FL6 High Inertia (HI) provides superior control stability under high external load inertias across shaft heights 45, 65, and 90 (0.4 kW to 7.0 kW).
• Rugged Industrial Execution: Equipped with industrial-grade military-style connectors or quick-locking pre-assembled cables, IP65 degree of protection (with shaft oil seal), and optional integrated 24V holding brakes.
The Siemens SIMOTICS S-1FL6 Synchronous Servo Motor Family delivers outstanding torque linearity, cost-effective motion precision, and heavy-duty reliability for commercial automation machinery. Spanning rated power ratings from 0.05 kW up to 7.0 kW and rated speeds of 2,000 rpm and 3,000 rpm (with maximum speeds reaching 5,000 rpm), 1FL6 motors are available with TTL incremental encoders (2500 ppr) or multi-turn absolute encoders (20-bit + 12-bit). Standard options include plain or keyed shafts, IP65 housing protection, and high-flex MOTION-CONNECT 300 cabling. They are specified worldwide in electronic assembly equipment, pick-and-place packaging, labeling machines, textile feeding mechanisms, semiconductor handling, and laser cutting machines.
Technical Specifications
| Model / Part Number | 1FL6042-1AF61-0AA1 (0.4 kW, Rated Speed 3000 rpm, Low Inertia, Incremental Encoder, Plain Shaft) |
|---|---|
| Brand Lineage | Siemens Digital Industries (100% Authentic Siemens Motion Control Supply) |
| Motor Technology | Permanent-Magnet Synchronous AC Servo Motor (High Coercivity Neodymium Magnets) |
| Design Architectures | SIMOTICS S-1FL6 Low Inertia (LI) & SIMOTICS S-1FL6 High Inertia (HI) |
| Rated Output Power Range | 0.05 kW to 7.0 kW (Rated torque from 0.16 Nm up to 33.4 Nm; max torque up to 90 Nm) |
| Rated Speeds ($n_N$) | 3000 rpm (Low Inertia Series) | 2000 rpm & 3000 rpm (High Inertia Series) |
| Feedback / Sensor Options | Optical Incremental Encoder (TTL 2500 ppr) | Absolute Multi-Turn Encoder (20-bit + 12-bit) |
| Cooling & Protection Class | Natural surface cooling (totally enclosed non-ventilated TENV); IP65 protection class (with shaft seal) |
Siemens SIMOTICS S-1FL6 Selection Directory (SINAMICS V90 Matched)
Procurement selection directory for Siemens SIMOTICS S-1FL6 Servo Motors. Review standardized parameters across Low Inertia (LI) and High Inertia (HI) architectures. Identify exact shaft heights (SH), rated output power (kW), rated torques ($M_N$), rated speeds ($n_N$), and official Siemens MLFB part numbers:
| Brand | Design Class | Shaft Height | Rated Power | Rated Torque ($M_N$) | Rated Speed | Order Number / MLFB Code |
|---|---|---|---|---|---|---|
| Siemens | 1FL6 Low Inertia | SH 20 | 0.05 kW | 0.16 Nm | 3000 rpm | 1FL6022-2AF21-□□□1 |
| Siemens | 1FL6 Low Inertia | SH 20 | 0.10 kW | 0.32 Nm | 3000 rpm | 1FL6024-2AF21-□□□1 |
| Siemens | 1FL6 Low Inertia | SH 30 | 0.20 kW | 0.64 Nm | 3000 rpm | 1FL6032-2AF21-□□□1 |
| Siemens | 1FL6 Low Inertia | SH 30 | 0.40 kW | 1.27 Nm | 3000 rpm | 1FL6034-2AF21-□□□1 |
| Siemens | 1FL6 Low Inertia | SH 40 | 0.75 kW | 2.39 Nm | 3000 rpm | 1FL6042-1AF61-□□□1 |
| Siemens | 1FL6 Low Inertia | SH 40 | 1.00 kW | 3.18 Nm | 3000 rpm | 1FL6044-1AF61-□□□1 |
| Siemens | 1FL6 Low Inertia | SH 50 | 1.50 kW | 4.78 Nm | 3000 rpm | 1FL6052-1AF61-□□□1 |
| Siemens | 1FL6 Low Inertia | SH 50 | 2.00 kW | 6.37 Nm | 3000 rpm | 1FL6054-1AF61-□□□1 |
| Siemens | 1FL6 High Inertia | SH 45 | 0.40 kW | 1.27 Nm | 3000 rpm | 1FL6042-2AF21-□□□1 |
| Siemens | 1FL6 High Inertia | SH 45 | 0.75 kW | 2.39 Nm | 3000 rpm | 1FL6044-2AF21-□□□1 |
| Siemens | 1FL6 High Inertia | SH 65 | 0.75 kW | 3.58 Nm | 2000 rpm | 1FL6061-1AC61-□□□1 |
| Siemens | 1FL6 High Inertia | SH 65 | 1.00 kW | 4.78 Nm | 2000 rpm | 1FL6062-1AC61-□□□1 |
| Siemens | 1FL6 High Inertia | SH 65 | 1.50 kW | 7.16 Nm | 2000 rpm | 1FL6064-1AC61-□□□1 |
| Siemens | 1FL6 High Inertia | SH 65 | 1.75 kW | 8.36 Nm | 2000 rpm | 1FL6066-1AC61-□□□1 |
| Siemens | 1FL6 High Inertia | SH 65 | 2.00 kW | 9.55 Nm | 2000 rpm | 1FL6067-1AC61-□□□1 |
| Siemens | 1FL6 High Inertia | SH 90 | 2.50 kW | 11.9 Nm | 2000 rpm | 1FL6090-1AC61-□□□1 |
| Siemens | 1FL6 High Inertia | SH 90 | 3.50 kW | 16.7 Nm | 2000 rpm | 1FL6092-1AC61-□□□1 |
| Siemens | 1FL6 High Inertia | SH 90 | 5.00 kW | 23.9 Nm | 2000 rpm | 1FL6094-1AC61-□□□1 |
| Siemens | 1FL6 High Inertia | SH 90 | 7.00 kW | 33.4 Nm | 2000 rpm | 1FL6096-1AC61-□□□1 |
Documentation & Technical Catalogs
1FL6 Low Inertia vs. 1FL6 High Inertia Selection Matrix
Engineering comparison between the Low Inertia (LI) and High Inertia (HI) motor architectures:
| Design Variant | Rotor Inertia Characteristics | Rated Voltage Supply | Load Inertia Ratio ($J_L / J_M$) | Target Automation Applications |
|---|---|---|---|---|
| SIMOTICS S-1FL6 Low Inertia (LI) | Extremely low rotor inertia for rapid acceleration and high-frequency stops | 1-phase / 3-phase 200 V to 240 V AC | Optimized for low load inertia systems ($J_L / J_M \le 5$) | High-speed electronic assembly machines, pick-and-place arms, high-cycle packaging, labeling machines. |
| SIMOTICS S-1FL6 High Inertia (HI) | Larger rotor inertia matching heavier moving mechanical payloads | 3-phase 380 V to 480 V AC (also 200 V) | Stable control with high load inertia systems ($J_L / J_M \le 15$) | Rotary tables, vertical positioning axes, metal stamping feeders, winding machines, CNC tool turrets. |
SINAMICS V90 & SIMOTICS S-1FL6 Drive Package Overview
The 1FL6 servomotor operates in seamless harmony with Siemens SINAMICS V90 converters, providing pre-engineered cabling and simple motion configuration:
| SINAMICS V90 Converter Type | Control Interface Protocols | Matched 1FL6 Motor Series | System Engineering Benefits |
|---|---|---|---|
| SINAMICS V90 PTI (Pulse Train) | Pulse/Direction (PTI), Analog $\pm 10\text{V}$, Modbus RTU | 1FL6 Low Inertia & High Inertia | Standard position control with third-party PLCs or basic Siemens S7-1200 controllers. |
| SINAMICS V90 PN (PROFINET) | Real-Time PROFINET (RT / IRT), PROFIdrive | 1FL6 Low Inertia & High Inertia | Integrated motion via TIA Portal with SIMATIC S7-1200 / S7-1500; simple network cabling. |
| MOTION-CONNECT 300 Cables | Standard & High-Flex Trailing Power/Signal Lines | All 1FL6 Frame Sizes (SH 20 to 90) | Industrial IP65 round connectors; tested for bending cycles in dynamic cable tracks. |
Expert Motion Control Sourcing & V90 Integration by WeDrive
The 1FL6 motor series offers one of the most reliable and economical entry points into Siemens motion control technology, delivering exceptional MTBF, low operational noise, and tight positioning tolerances without complex commissioning overhead. Contact our technical sales engineers with your required speed, torque, and communication requirements to receive authentic Siemens factory quotations and expedited worldwide shipping.
Core Benchmark Model Standard Configurations
- 1FL6022-2AF21-1AA1 (0.05 kW LI)
- 1FL6024-2AF21-1AA1 (0.10 kW LI)
- 1FL6032-2AF21-1AA1 (0.20 kW LI)
- 1FL6034-2AF21-1AA1 (0.40 kW LI)
- 1FL6042-1AF61-0AA1 (0.75 kW LI)
- 1FL6044-1AF61-0AA1 (1.00 kW LI)
- 1FL6052-1AF61-0AA1 (1.50 kW LI)
- 1FL6054-1AF61-0AA1 (2.00 kW LI)
- 1FL6042-2AF21-1AA1 (0.40 kW HI)
- 1FL6044-2AF21-1AA1 (0.75 kW HI)
- 1FL6061-1AC61-0AA1 (0.75 kW HI)
- 1FL6062-1AC61-0AA1 (1.00 kW HI)
- 1FL6064-1AC61-0AA1 (1.50 kW HI)
- 1FL6066-1AC61-0AA1 (1.75 kW HI)
- 1FL6067-1AC61-0AA1 (2.00 kW HI)
- 1FL6090-1AC61-0AA1 (2.50 kW HI)
- 1FL6092-1AC61-0AA1 (3.50 kW HI)
- 1FL6094-1AC61-0AA1 (5.00 kW HI)
- 1FL6096-1AC61-0AA1 (7.00 kW HI)
- 1FL6 Holding Brake Execution (-0AB1)