Description
The listed Siemens 1FK7080-5AF71-1TG0, 1FK7080-5AF71-1UB0, 1FK7080-5AF71-1UG0, 1FK7080-5AF71-1UA3 are SIMOTICS S compact synchronous servo motors from the 1FK7 / 1FK7080 sub-family (ultra-compact ~38 mm flange, the smallest 1FK7-type servo), designed for high-dynamic micro-motion with SINAMICS S120 / S110 / SIMODRIVE 611D.
- 1FK7080 → Smallest 1FK7-style servo — flange ~ Ø 38–40 mm (IEC 40 miniature), continuous torque ~ 0.15 – 0.5 Nm (depending on winding), extremely low rotor inertia — used for tiny pick/place, electronic component insertion, optical positioning, small labeling heads.
- The suffix difference (-1TG0 / -1UB0 / -1UG0 / -1UA3) defines encoder type & connector variant:
- -1TG0 → EnDat 2.1 Absolute Multiturn + Electronic Nameplate (preferred for SINAMICS S120 — auto-ID via EEPROM)
- -1UB0 / -1UG0 / -1UA3 → Typically Incremental + Hall (Hiperface/TTL or Siemens proprietary incremental) or Resolver variants for legacy SIMODRIVE / S120 with eval module — verify exact 20-character code!
- “-5AF71-“ = specific winding + With Holding Brake (5A = brake present; 5B = no brake) — these have 24V DC spring-applied holding brake.
These motors require:
- SINAMICS S120 Power Module + CU310-2 PN/DP (or CU320-2 + SMC20/SMC30)
- Motor Power Cable (6FX2002-… — M17 or M8 mini depending on generation — 1FK7080 often uses smaller power connector; check catalog: early 1FK7 mini = M12 power; later = M17 — confirm by photo/label)
- Encoder/Feedback Cable (6FX2003-… matching encoder type — EnDat M23 or M12 depending on motor generation)
Key Features
- Frame: 1FK7080 — Flange ~ 40 mm (miniature), Low Inertia (J ≈ 5×10⁻⁶ – 2×10⁻⁵ kg·m²)
- Rated Torque: ~ 0.15 / 0.25 / 0.5 Nm (continuous — 3 common windings; “5AF71” picks one)
- Rated Speed: 3000 rpm (typical — some 6000 rpm windings available)
- Encoder: EnDat 2.1 Abs Multiturn (-1TG0) / Incremental+Hall or Resolver (other suffixes)
- Brake: Yes (24V DC, spring-applied — released by energizing)
- Protection: IP65 (IP67 with shaft seal)
- Cooling: Self-cooled (natural convection)
- Country of Origin: Germany / Austria / China (Siemens Industry)
Model & Variant Reference (1FK7080 Listed — Suffix = Encoder/Option)
Model (Short) | Encoder / Feedback (Typical) | Drive Match |
|---|---|---|
1FK7080-5AF71-1TG0 | EnDat 2.1 Abs Multiturn + Electronic Nameplate — M23 or M12 EnDat conn. | SINAMICS S120 CU310-2 (EnDat port) or CU320-2 + SMC20 |
1FK7080-5AF71-1UB0 | Incremental Encoder + Hall (often 2048 ppr TTL + 3×Hall — legacy IF) | SIMODRIVE 611D / S120 with incremental eval — confirm |
1FK7080-5AF71-1UG0 | Similar incremental/hybrid variant — check 20-char code | Same as above — verify compatibility |
1FK7080-5AF71-1UA3 | Often Resolver or special incremental — verify by DT Config print | SIMODRIVE 611D (resolver board) or S120+SMC20(Resolver) if resolver |
⚠️ Critical Notes:
Technical Specifications (Representative — 1FK7080-5AF71-1TG0, EnDat Abs, w/ Brake, ~0.25–0.5 Nm Rated, 3000 rpm)
Parameter | Specification (Indicative — confirm via Siemens Catalog D21.1 / DT Configurator for exact 20-char code) |
|---|---|
Model / Order Code | 1FK7080-5AF71-1TG0 (SIMOTICS S — 1FK7 mini, Frame 1FK7080) |
Rated Power | ~ 0.05 – 0.15 kW (dep. on winding “5AF71”) |
Rated Torque (M_N) | ~ 0.15 / 0.25 / 0.5 Nm (continuous — three windings; “5AF71” selects one) |
Peak Torque (M_max) | ~ 2× rated (short-time) |
Rated Speed (n_N) | 3000 rpm (typical — some 6000 rpm windings) |
Max. Mechanical Speed | 6000 rpm (some windings) |
Rotor Inertia (J_mot) | ~ 5×10⁻⁶ – 2×10⁻⁵ kg·m² (ultra-low — excellent for micro-dynamic) |
Encoder (for -1TG0) | EnDat 2.1 Absolute Multiturn (20-bit + multiturn) — electronic nameplate for S120 auto-ID |
Holding Brake | Yes (“5A” = with brake) — 24 V DC (±10%), spring-applied, ~0.3 A hold current |
Degree of Protection | IP65 (IP67 with shaft seal option) |
Cooling | Self-cooled (natural convection) |
Flange / Shaft | Flange Ø ~ 40 mm (mini IEC 40) — small keyway or plain shaft |
Connections | Power: often M12 round (mini — verify vs M17 on larger 1FK7); Encoder: M23 (EnDat) or M12 (mini EnDat — dep. on prod. date/gen) |
Weight (Motor Only) | ~ 0.5 – 0.8 kg (with/without brake) |
Operating Temp. | 0 … +40 °C (derated to +55 °C — 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:
- Encoder/drive compatibility check (EnDat -1TG0 → S120 EnDat/CU310; Incr/Resolver → need matching eval)
- Mini-connector cable selection (Power: 6FX2002-… M12 mini — length & straight/angled; Encoder: 6FX2003-… EnDat M23/M12 → SMC20/CU310; brake lead usually in power jacket)
- Brake control wiring (24V DC release — drive BICO or external relay — release BEFORE torque enable)
- S120 STARTER/SCOUT auto-ID walkthrough (EnDat only)
- Torque/inertia verification (if undersized → suggest 1FK7100)
- Cross-ref to 1FK7100 (next size up) if application outgrows 1FK7080
- Optional: Motor power/encoder cables (mini M12/M17 — confirm by photo), 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 mini servo motors — not rewound/clone (critical encoder alignment)
- Global supply network with competitive pricing
- Expertise in SINAMICS S120 + compact 1FK7 system sizing (motor-drive-cable-encoder-brake)
- Comprehensive technical documentation (mini M12/M17 pinout, STARTER auto-config steps, brake wiring)
- Responsive customer service and support
Applications
- Micro Pick & Place / Electronics Insertion: Extremely low inertia for sub-100g payload high-speed cycles.
- Optical / Vision Stage Positioning: Fine angular/linear positioning — smooth rotation.
- Small Labeling / Print Head Index: Precise low-torque moves.
- Laboratory / Test Rig Micro-Actuator: Fits tight envelopes.
- Retrofit / Spare: Exact 1FK7080 p/n — EnDat version auto-detected by S120 → minimal re-commissioning.
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