Siemens 1FK7063-5AF71-1FB5 Servo Motor – SIMOTICS S-1FK7

Siemens 1FK7063-5AF71-1FB5 — Compact Servo Motor for High-Dynamic Closed-Loop Motion Control

The 1FK7063-5AF71-1FB5 is a permanent-magnet synchronous servo motor (PMSM) from Siemens’ SIMOTICS S-1FK7 Compact series. Designed for closed-loop vector control in demanding industrial motion applications, this motor delivers a rated torque of 6.0 Nm at 2,000 rpm within a 63 mm frame diameter — a torque-to-volume ratio that makes it a preferred selection for feed axes, robot joints, and high-cycle packaging drives. The integrated spring-applied holding brake (suffix 1FB5) and multiturn absolute DRIVE-CLiQ encoder eliminate the need for external brake modules and homing sequences, reducing both panel space and commissioning time. This unit is stocked and dispatched from Xiamen, China, with full traceability documentation and a 12-month warranty.

Real-time Stock & RFQ: [email protected] | WhatsApp: +86 18359268345

Technical Parameters

Hardware Logical Analysis

The 1FK7063-5AF71-1FB5 is built around a distributed-winding stator topology with a 6-pole rotor geometry. This configuration produces a low cogging torque profile — typically below 1.5% of rated torque — which is essential for smooth velocity regulation at speeds below 10 rpm in grinding and honing applications. The permanent magnets are rare-earth NdFeB grade, sintered and surface-mounted on the rotor lamination stack, providing a high remanence flux density that sustains the 19.0 Nm peak torque output during short-duration acceleration transients without thermal derating of the magnets.

The DRIVE-CLiQ encoder interface transmits position, velocity, temperature, and motor identification data over a single shielded cable using a proprietary serial protocol at 100 Mbit/s. The multiturn absolute encoder retains 4,096 full revolutions of position data via an internal energy-storage capacitor, eliminating the need for battery backup or homing cycles after power interruption. This is a measurable advantage in vertical axis applications where uncontrolled motion during homing is a safety risk.

The integrated spring-applied holding brake uses a normally-engaged electromagnetic design: the brake disc is clamped by spring force and released by energizing the brake coil at 24 V DC. Brake engagement time is typically 15–30 ms; release time is 50–80 ms. These response characteristics are within the SBC (Safe Brake Control) timing requirements of SINAMICS Safety Integrated, allowing the brake to participate in certified safety stop sequences (SS1, SS2) without additional relay logic.

EMC performance is addressed at the motor level through a fully enclosed aluminum housing with 360° cable shield termination at the connector backshell. The stator winding uses a star-point configuration with the neutral point internally connected, reducing common-mode current injection into the drive’s DC bus. The motor’s thermal model — embedded in the DRIVE-CLiQ data set — allows the SINAMICS drive to execute real-time I²t monitoring and issue pre-fault warnings before the winding temperature reaches the Class F limit, preventing unplanned shutdowns in continuous-duty cycles.

System Integration Benefits

• Zero-homing absolute position retention: The 20-bit singleturn / 12-bit multiturn encoder stores absolute position across 4,096 revolutions without battery backup. Machine restart after E-stop or power loss proceeds immediately without axis referencing, reducing downtime in multi-shift production environments.
• Single-cable DRIVE-CLiQ wiring: Power and encoder signals share a standardized cable assembly (MOTION-CONNECT 500/800). This eliminates a separate encoder cable run, reduces connector count in the cable chain, and lowers the probability of wiring errors during installation or maintenance.
• Automatic motor data upload: On first power-up with a SINAMICS S120 or S210 drive, the motor’s electronic nameplate — including rated current, torque constants, thermal model coefficients, and encoder parameters — is read automatically via DRIVE-CLiQ. Manual parameter entry is not required, and the risk of commissioning errors from incorrect data entry is eliminated.
• Safety Integrated compatibility: The motor and brake are fully compatible with SINAMICS Safety Integrated functions STO (Safe Torque Off), SS1 (Safe Stop 1), SS2 (Safe Stop 2), and SBC (Safe Brake Control) without external safety relays. This enables PLd / SIL 2 machine safety architectures with reduced panel wiring complexity.
• Deterministic torque response: The PMSM topology with field-oriented control (FOC) on the SINAMICS drive achieves torque rise times below 1 ms from command to output. This deterministic response is critical for coordinated multi-axis interpolation in CNC contouring and electronic gearing applications.
• Thermal transparency via DRIVE-CLiQ diagnostics: The motor continuously reports winding temperature to the drive. The SINAMICS drive executes a real-time thermal model and can reduce current limits proactively before the winding reaches the Class F threshold, extending motor service life in high-ambient or high-duty-cycle installations.
• Compact 63 mm frame with high torque density: The 6.0 Nm rated / 19.0 Nm peak torque output from a 63 mm flange allows machine designers to maintain tight axis spacing in multi-axis gantry and robot configurations without compromising dynamic performance. The motor’s moment of inertia (8.73 × 10⁻⁴ kg·m²) supports inertia matching ratios up to 10:1 with typical mechanical loads.
• IP64 sealing for machine tool environments: The dust-tight, splash-proof enclosure withstands coolant mist, swarf, and cleaning spray in CNC machining centers without additional motor enclosures or bellows. This reduces installation cost and eliminates a common failure mode in wet-cutting environments.
• Seamless SINUMERIK integration: When paired with a SINAMICS S120 drive and SINUMERIK 840D sl or 828D CNC controller, the motor participates in the drive object model directly. Axis commissioning via SIZER and STARTER software is fully automated, and the motor’s dynamic response is pre-optimized using Siemens’ servo tuning algorithms.
• Scalable within the 1FK7 family: The 1FK7 Compact series spans frame sizes 36 mm to 100 mm with consistent mechanical interfaces and DRIVE-CLiQ encoder architecture. Upgrading to a higher-torque variant (e.g., 1FK7080 or 1FK7100) requires only a motor swap and drive current module change — no rewiring of the encoder or brake circuits.

Quality Assurance & Global Logistics

Every 1FK7063-5AF71-1FB5 unit dispatched from our Xiamen, China facility is a genuine Siemens product sourced through verified supply channels with full documentation traceability. Pre-shipment inspection covers nameplate verification, serial number cross-reference, connector integrity check, and packaging condition assessment. Units are shipped in original Siemens packaging with foam-lined outer cartons rated for international air and sea freight.

Export documentation — commercial invoice, packing list, certificate of origin, and HS code declaration (HS 8501.52) — is prepared for every international shipment to facilitate customs clearance in the EU, North America, Southeast Asia, and the Middle East. Air freight to major industrial hubs (Frankfurt, Chicago, Singapore, Dubai) typically achieves 3–7 business day door-to-door transit. Sea freight consolidation is available for multi-unit orders. A 12-month warranty against manufacturing defects is provided on all units; warranty claims are processed with replacement dispatch within 5 business days of fault confirmation.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
Location: Xiamen, China
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