Description
The listed Siemens 1FK7100-5AF71-1TG0, 1FK7100-5AF71-1AH0, 1FK7100-5AF71-1FH0 are SIMOTICS S compact synchronous servo motors from the 1FK7 series — specifically the 1FK7100 frame (smallest in 1FK7 family, ~40 mm flange, low rotor inertia) intended for high-dynamic small-load motion control with SINAMICS S120 / S110 / SIMODRIVE 611D drives.
- 1FK7100 → Compact permanent-magnet AC synchronous servo motor — rated torque typically 0.3 – 1.2 Nm (continuous), rated speed commonly 3000 rpm (some windings 2000/4500/6000 rpm) — low inertia design ideal for pick/place, electronics assembly, small labeling heads.
- The differing suffixes (-1TG0 / -1AH0 / -1FH0) primarily indicate encoder type / interface and connector/option variation:
- -1TG0 → Typically EnDat 2.1 absolute multiturn encoder + electronic nameplate (DRIVE-CLiQ readable) — most common for SINAMICS S120.
- -1AH0 / -1FH0 → May indicate Resolver (AH0 — two-pole resolver feedback for SIMODRIVE 611D / S120 with resolver eval module SMC20/SMC30 in resolver mode) or Incremental encoder + Hall (FH0 — sometimes Hiperface/Incremental + Hall for legacy drives) — exact meaning depends on full 20-char code; Siemens uses last 4 digits to encode encoder & connector type. Always verify by the complete 20-character order code or DT Configurator print!
- “-5AF71-“ segment = specific winding + with holding brake (5A = with brake; 5B = without brake typically) + flange/shaft default — this batch has holding brake (spring-applied, 24V DC release).
These motors REQUIRE:
- Correct SINAMICS S120 Power Module + CU310-2 PN/DP (or CU320-2 + SMC20/SMC30 for encoder eval)
- Motor power cable (6FX2002-… — pre-assembled, with or without brake leads)
- Encoder/feedback cable (6FX2003-… — type matches encoder: EnDat M23 → S120 EnDat port / SMC20; Resolver → SMC20 in resolver mode; Incremental → respective DI/encoder input)
Key Features
- Frame: 1FK7100 — Flange Ø ~ 40 mm (IEC 40), Low Inertia (J_rotor ~ 0.00002–0.00005 kg·m²)
- Rated Torque: ~ 0.32 / 0.64 / 1.0 / 1.27 Nm (depending on winding — check catalog D21.1for “5AF71” exact winding)
- Rated Speed: 3000 rpm (typical — some windings 2000/4500 rpm)
- Encoder Options: EnDat 2.1 Absolute Multiturn (-1TG0), Resolver (-1AH0 typical), Incremental+Hall (-1FH0 typical)
- Brake: Present (code contains “5A” = with brake) — 24 V DC, spring-applied, released by energizing
- Protection: IP65 (IP67 with shaft seal option)
- Cooling: Self-cooled (natural convection — standard for 1FK7100)
- Country of Origin: Germany / China (Siemens Industry)
Model & Variant Reference (1FK7100 Listed — Suffix = Encoder/Option Difference)
Model (Short) | Encoder / Feedback (Typical Interpretation) | Best Drive Match |
|---|---|---|
1FK7100-5AF71-1TG0 | EnDat 2.1 Absolute Multiturn + Electronic Nameplate (DRIVE-CLiQ readable) — M23 conn. | SINAMICS S120 CU310-2 PN/DP (direct EnDat port) or CU320-2 + SMC20 |
1FK7100-5AF71-1AH0 | Resolver (2-pole) — for SIMODRIVE 611D with resolver board OR S120 + SMC20 (Resolver mode) | SIMODRIVE 611D (meas. board for resolver) / S120 + SMC20(resolver) |
1FK7100-5AF71-1FH0 | Incremental Encoder + Hall (often 2048 ppr TTL/RS422 + 3×Hall — legacy IF) — verify exact | Legacy SIMODRIVE / S120 with incremental encoder eval (less common on new S120 — prefer EnDat) |
⚠️ Critical Notes:
Technical Specifications (Representative — 1FK7100-5AF71-1TG0, EnDat Abs, w/ Brake, ~0.64–1.0 Nm Rated)
Parameter | Specification (Indicative — confirm via Siemens Catalog D21.1 / DT Configurator for exact 20-char code) |
|---|---|
Model / Order Code | 1FK7100-5AF71-1TG0 (SIMOTICS S 1FK7 — Frame 1FK7100, small flange) |
Rated Power | ~ 0.2 – 0.3 kW (dep. on winding “5AF71” — exact in config print) |
Rated Torque (M_N) | ~ 0.64 Nm / 1.0 Nm / 1.27 Nm (continuous — three common windings for 1FK7100; “5AF71” specifies one) |
Peak Torque (M_max) | ~ 2× rated (e.g., 2× rated for 5 s) |
Rated Speed (n_N) | 3000 rpm (typical — some windings 2000/4500 rpm) |
Max. Mechanical Speed | 6000 rpm (some windings) |
Rotor Inertia (J_mot) | ~ 2×10⁻⁵ … 5×10⁻⁵ kg·m² (very low — good for high-dynamic) |
Encoder (for -1TG0) | EnDat 2.1 Absolute Multiturn (20-bit singleturn + multiturn) — electronic nameplate for S120 auto-ID |
Holding Brake | Yes (“5A” = with brake) — 24 V DC (±10%), spring-applied, released by energizing — typical current ~0.4 A |
Degree of Protection | IP65 (IP67 with shaft seal option) |
Cooling | Self-cooled (natural convection — no fan on 1FK7100) |
Flange / Shaft | Flange Ø ~ 40 mm (IEC 40) — shaft with feather key (std) or plain (opt) |
Connections | Power: M17 round plug (or terminal box — 1FK7 = connector); Encoder: M23 round (EnDat) / M12 or M23 (Resolver/Inc — dep. on suffix) |
Weight (Motor Only) | ~ 0.8 – 1.2 kg (with/without brake) |
Operating Temp. | 0 … +40 °C (up to +55 °C with derating — see catalog) |
Standards | CE, UL, cUL, RoHS, EN 60034-1 / EN 61800-5-1 |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty (spin test on SINAMICS rig — verify encoder count & brake release)
- Technical support for:
- Drive & encoder type confirmation (EnDat -1TG0 → S120 EnDat port/CU310-2; Resolver -1AH0 → SMC20 resolver; Incremental -1FH0 → check compatibility)
- Cable selection (Power 6FX2002-… M17 straight/angled + length; Encoder 6FX2003-… EnDat M23→SMC20/CU310 or Resolver M23→SMC20 term.; brake leads usually in power cable jacket)
- Brake control wiring (24V DC release — drive BICO or ext. relay — ensure brake released BEFORE torque enable)
- S120 auto-ID walkthrough (STARTER/SCOUT → “Accept motor data from EEPROM”)
- Torque/inertia check (T_motor ≥ T_load/gear + J_eq×α)
- Cross-ref to 1FK7101 (larger torque) if undersized
- Optional: Motor power/encoder cables (6FX2002-/6FX2003- series), mating connectors
Delivery Time
- Standard delivery: 3-5 working days (stock NOS)
- Express shipping available upon request
Why Choose Our Store
- Genuine Siemens SIMOTICS S 1FK7 servo motors — not rewound/clone (encoder calibration critical)
- Global supply network with competitive pricing
- Expertise in SINAMICS S120 + 1FK7 system matching (motor-drive-cable-encoder-brake)
- Comprehensive technical documentation (M17/M23 pinout, STARTER auto-config steps, brake wiring example)
- Responsive customer service and support
Applications
- High-Speed Pick & Place / Electronics Assembly: Low-inertia 1FK7100 ideal for rapid accel/decel small payloads.
- Small Labeling / Printing Heads: Precise angular positioning.
- Test Rig Actuators: Compact form factor fits tight envelopes.
- Robot Finger / Gripper Rotation: Where space & weight matter.
- Retrofit / Spare: Exact 1FK7100 p/n — S120 auto-reads EEPROM (EnDat ver) → minimal re-commissioning.
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