SIEMENS 1FK7032-5AK71-1LH0 – Compact Synchronous Servo Motor | SIMOTICS S-1FK7 Platform
Engineering Background
The SIEMENS 1FK7032-5AK71-1LH0 belongs to the SIMOTICS S-1FK7 series — Siemens’ flagship compact synchronous servo motor line engineered for high-dynamic, precision motion control in industrial automation. The 1FK7 platform is the successor to the 1FK6 series and is fully integrated into the SINAMICS S120 and SINAMICS S210 drive ecosystems, making it the preferred choice for OEM machine builders and system integrators worldwide.
Product Positioning
Designed for procurement engineers sourcing reliable, spec-verified servo drives for CNC machining centers, packaging lines, printing presses, and robotic cells. The 1FK7032-5AK71-1LH0 delivers a compact frame size with high torque density, natural cooling, and an absolute encoder — eliminating homing cycles and reducing commissioning time. Konmask.com supplies this unit with full traceability documentation and pre-shipment inspection.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (MPN) | 1FK7032-5AK71-1LH0 |
| Series / Platform | SIMOTICS S-1FK7 |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Frame Size | SH 36 (Compact) |
| Rated Speed | 6,000 rpm |
| Rated Torque | 0.9 N·m |
| Peak Torque | 2.7 N·m |
| Rated Power | 0.37 kW |
| Rated Current | 1.4 A |
| Voltage Class | 400 V (3-phase AC) |
| Encoder Type | Absolute Encoder (Single-turn / Multi-turn) |
| Encoder Resolution | 20-bit (1,048,576 ppr) |
| Shaft Design | Smooth shaft, without key (5AK71 = 6,000 rpm, smooth) |
| Holding Brake | Without brake (1LH0) |
| Cooling Method | Natural convection (IC 410) |
| Protection Class | IP64 |
| Insulation Class | F (155°C) |
| Ambient Temperature | 0°C to +40°C (operating) |
| Vibration Severity | A (standard) |
| Moment of Inertia | 0.0365 × 10⁻⁴ kg·m² |
| Weight (approx.) | 0.85 kg |
| Compatible Drive | SINAMICS S120, SINAMICS S210 |
| Country of Origin | Germany |
| SIEMENS Order No. | 1FK7032-5AK71-1LH0 |
Proven Application Environments
- CNC Machining Centers – Axis feed drives requiring high positioning accuracy and zero-backlash response
- Packaging Machinery – High-cycle pick-and-place and form-fill-seal lines demanding consistent torque at variable speeds
- Printing & Converting – Register control and tension management on web-fed presses
- Robotics & Handling – Compact joint actuators in SCARA and Cartesian robot architectures
- Semiconductor & Electronics Assembly – Ultra-precise positioning stages where encoder resolution is critical
- Textile Machinery – Spindle and traverse drives requiring smooth speed regulation across wide RPM ranges
Engineering Advantages
- Absolute Encoder – No Homing Required: The 20-bit absolute encoder retains position data through power cycles, eliminating reference runs and reducing machine restart time by up to 80%.
- High Torque Density in Compact Frame: SH 36 frame delivers 0.9 N·m rated / 2.7 N·m peak — enabling downsizing of machine axes without sacrificing dynamic performance.
- DRIVE-CLiQ Ready: Native DRIVE-CLiQ interface enables plug-and-play commissioning with SINAMICS S120/S210 — motor data is automatically read by the drive, eliminating manual parameter entry.
- Natural Cooling (IC 410): No external cooling fan required — reduces maintenance overhead and eliminates fan-noise in cleanroom or low-noise environments.
- IP64 Protection: Sealed against dust ingress and splash water — suitable for machine tool coolant environments without additional enclosure.
- Vibration Class A Compliance: Meets IEC 60034-14 vibration severity grade A for smooth, low-vibration operation in precision applications.
System Architecture & Signal Flow
The 1FK7032-5AK71-1LH0 operates within the SINAMICS S120 / S210 closed-loop servo architecture:
- PLC / CNC Controller (e.g., SINUMERIK 840D sl, SIMATIC S7-1500T) → issues position/speed setpoints via PROFINET IRT or EtherCAT
- SINAMICS S120 Drive Module (e.g., 6SL3120-1TE13-0AA3 Single Motor Module) → receives setpoints, executes current/torque control loop at 125 µs cycle
- DRIVE-CLiQ Cable → connects drive to motor encoder; transmits actual position, temperature, and motor ID data bidirectionally
- 1FK7032-5AK71-1LH0 Motor → converts electrical power to mechanical torque; encoder feeds back 20-bit absolute position to drive
- Load / Mechanical Axis → ballscrew, rack-and-pinion, or belt drive receives torque output
This architecture supports vector control with full field-weakening above base speed, enabling constant-power operation up to 6,000 rpm.
Sourcing & Quality Verification
- Origin Traceability: All units sourced through authorized industrial distribution channels with verifiable supply chain documentation.
- Pre-Shipment Inspection: Each unit undergoes visual inspection, nameplate verification (MPN, serial number, date code), and packaging integrity check before dispatch.
- Authenticity Indicators: Genuine SIEMENS units carry holographic labels, laser-etched serial numbers, and SIEMENS-branded packaging. Konmask.com provides photo documentation of these identifiers upon request.
- Warranty: 12-month warranty against manufacturing defects. DOA (Dead on Arrival) replacement within 7 business days.
- Condition: New, original factory packaging (OFP) unless otherwise stated in the listing.
Procurement Process
- Confirm Compatibility: Verify your SINAMICS drive module and DRIVE-CLiQ cable version are compatible with 1FK7 series (firmware V4.7+).
- Request Quote: Contact support@konmask.com for volume pricing, lead time confirmation, and export documentation (CO, packing list, commercial invoice).
- Place Order: Add to cart and complete checkout, or submit a Purchase Order via email for NET-30 terms (approved accounts).
- Shipping: DHL Express / FedEx International Priority standard. EXW Xiamen available for freight forwarder arrangements.
- Customs & HS Code: HS 8501.52 (AC motors, multi-phase, 750W–75kW). Export license not required for standard commercial shipments.
Technical FAQ
Q: Is the 1FK7032-5AK71-1LH0 compatible with SINAMICS S210?
A: Yes. The S210 single-axis drive is specifically optimized for the 1FK7 compact series. Use the SIZER for Siemens Drives tool to confirm axis sizing.
Q: What is the difference between 1LH0 and 1LG0 suffix?
A: 1LH0 = without holding brake. 1LG0 = with 24V DC holding brake. Select 1LH0 for horizontal axes or applications where the load is mechanically secured at rest.
Q: Can this motor operate with a third-party drive (e.g., Beckhoff, Yaskawa)?
A: The motor windings are compatible with standard AC servo drives. However, DRIVE-CLiQ encoder communication is proprietary to SIEMENS. Third-party drives require an external encoder adapter (e.g., EnDat 2.2 interface) — consult your drive manufacturer.
Q: What DRIVE-CLiQ cable length is recommended?
A: Maximum DRIVE-CLiQ cable length is 100 m (standard). Use SIEMENS pre-assembled cables (6FX5002-2DC10-xxxx) for guaranteed signal integrity.
Q: Is export to my country restricted?
A: SIEMENS servo motors are classified as EAR99 / AL:N for most destinations. Konmask.com complies with all applicable export control regulations. Contact us for country-specific clearance confirmation.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
