SIEMENS 1FK7022-5AK71-1LG5 – Compact Synchronous Servo Motor | SIMOTICS S-1FK7 Platform
Engineering Background
The SIEMENS 1FK7022-5AK71-1LG5 is a permanent-magnet synchronous servo motor from the SIMOTICS S-1FK7 series — Siemens’ flagship compact servo platform engineered for high-dynamic motion control in industrial automation. Designed to pair natively with SINAMICS S120 and S210 drive systems, this motor delivers precise torque, speed, and position control across demanding production environments.
Product Positioning
Targeting machine builders, OEM integrators, and MRO procurement engineers who require a drop-in, spec-verified replacement or new-build component for CNC, robotics, packaging, and semiconductor handling applications. The 1FK7022-5AK71-1LG5 occupies the compact-frame segment of the 1FK7 family, offering an optimal balance of power density and installation footprint.
Complete Technical Specifications
- Part Number / SKU: 1FK7022-5AK71-1LG5
- Series / Platform: SIMOTICS S-1FK7
- Motor Type: Permanent-Magnet Synchronous Servo Motor (PMSM)
- Rated Speed (nN): 6,000 rpm
- Rated Torque (MN): 0.9 N·m
- Stall Torque (M0): 1.0 N·m
- Rated Power: ~0.56 kW
- Encoder / Feedback: DRIVE-CLiQ absolute encoder (single-turn / multi-turn per suffix)
- Shaft: Smooth shaft (plain, no keyway) — suffix AK71
- Holding Brake: Without brake — suffix 1LG5
- Protection Class: IP64 (standard)
- Insulation Class: F (155 °C)
- Cooling Method: Natural convection (self-cooled)
- Ambient Temperature: 0 °C to +40 °C (operating)
- Weight: Approx. 0.9 kg
- Compatible Drive: SINAMICS S120, SINAMICS S210
- Connector Type: Bayonet connector (power + encoder integrated)
- Country of Origin: Germany
Proven Application Environments
- CNC machine tool axes (milling, turning, grinding)
- Industrial robot joint drives and SCARA arms
- Packaging machinery — form-fill-seal, cartoning, labeling
- Semiconductor wafer handling and pick-and-place systems
- Textile and printing machine feed axes
- Medical device assembly automation
- Electronic component SMT placement equipment
Engineering Advantages
- DRIVE-CLiQ Interface: Single-cable digital feedback eliminates separate encoder wiring, reduces commissioning time, and enables automatic motor identification in SINAMICS drives.
- High Overload Capability: Peak torque up to 3× rated torque for rapid acceleration/deceleration cycles.
- Compact Frame (SH 20): Minimal installation envelope suits space-constrained machine designs without sacrificing dynamic performance.
- Low Cogging Torque: Optimized winding geometry ensures smooth velocity control at low speeds — critical for precision contouring.
- Plug-and-Play with SINAMICS: Automatic parameter upload via DRIVE-CLiQ reduces setup errors and accelerates startup.
System Architecture & Signal Flow
The 1FK7022-5AK71-1LG5 integrates into a SINAMICS S120 or S210 drive topology as follows:
- Power Supply: SINAMICS Line Module → DC Bus → Motor Module
- Feedback: DRIVE-CLiQ cable from motor encoder → Control Unit (CU320-2 or CU310-2)
- Control: PROFINET / PROFIBUS from PLC (S7-1500 / S7-300) → SINAMICS CU → Motor Module → Motor
- Safety: STO (Safe Torque Off) via TM54F or onboard drive safety terminals
This architecture supports vector control, servo control, and U/f control modes with full diagnostic transparency via SINAMICS Startdrive in TIA Portal.
Sourcing & Quality Verification
- Origin: Genuine SIEMENS OEM component — sourced through authorized distribution channels
- Traceability: Each unit ships with original SIEMENS packaging, serial number label, and CE/UL markings
- Inspection: Pre-shipment functional verification — insulation resistance, encoder signal integrity, and shaft runout checked
- Warranty: 12-month replacement warranty against manufacturing defects
- Counterfeit Prevention: Holographic authenticity label verified against SIEMENS product database prior to dispatch
Procurement Process
- Submit your RFQ via support@konmask.com or add to cart directly
- Receive stock confirmation and lead-time quote within 24 business hours
- Pro-forma invoice issued; payment via T/T, PayPal, or trade credit
- Export documentation (commercial invoice, packing list, CO) prepared for international shipments
- DHL / FedEx express shipping with full tracking; EXW / FOB Xiamen available for bulk orders
Technical FAQ
Q: Is the 1FK7022-5AK71-1LG5 compatible with SINAMICS S210?
A: Yes. The S210 single-axis drive supports the full 1FK7 compact series via DRIVE-CLiQ. One-cable connection (power + feedback) is supported with the appropriate motor cable.
Q: What is the difference between 1LG5 and 1AA0 suffix?
A: The 1LG5 suffix denotes no holding brake and a DRIVE-CLiQ absolute encoder. The 1AA0 suffix typically indicates an incremental encoder variant. Always verify the full part number before ordering.
Q: Can this motor be used with a third-party drive?
A: The DRIVE-CLiQ encoder is proprietary to SIEMENS SINAMICS drives. For third-party drive integration, a resolver or TTL encoder variant of the 1FK7 series would be required.
Q: What is the lead time for stock orders?
A: In-stock units ship within 1–3 business days. For non-stock or high-volume orders, lead time is 4–8 weeks depending on factory allocation.
Q: Do you provide installation and commissioning support?
A: Yes. Our engineering team provides remote commissioning guidance for SINAMICS drive parameterization and TIA Portal Startdrive configuration at no additional charge for qualified orders.
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