Description
The Siemens SIMOTICS S-1FL6 (1FL6042 / 1FL6044 series) is a permanently excited synchronous servo motor for use with SINAMICS V90 servo drives (PTI Pulse/Dir or PN PROFINET). The listed models cover the low-power range:
- 1FL6042-2AF21-1AH1 → 0.2 kW (200 W), 3000 rpm, ~0.64 Nm, no brake (–H1)
- 1FL6044-2AF21-1AA1 → 0.4 kW (400 W), 3000 rpm, ~1.27 Nm, no brake (early/alt. suffix –A1)
- 1FL6044-2AF21-1AB1 → 0.4 kW (400 W), 3000 rpm, ~1.27 Nm, no brake (alt. suffix –B1 — check if plain shaft / key difference per configurator)
All use a 20-bit absolute encoder + multiturn (Value Encoder) — no homing required after power cycle when paired with V90. The motor is powered from the V90 drive which accepts 1× 230 V AC (≤ 0.75 kW frames) or 3× 400 V AC (≥ 1.5 kW frames). “Operating Voltage 230 V” in the title refers to the V90 drive’s single-phase 230 V AC input — the 1FL6 motor itself is a 3-phase PMSM.
Key Features
- Family: SIMOTICS S-1FL6 — optimized for V90 drive system
- Encoder: Absolute 20-bit + 12-bit multiturn — retained position without battery
- Brake Option: Present on –G1 suffix models; listed units are brakeless (H / A / B suffix)
- Cooling: Natural convection (self-cooled)
- Shaft: Plain with key (std SH40 for 1FL6044; SH30 for 1FL6042)
- Country of Origin: China / Germany (Siemens Global)
Model & Specification Table
Order No. | Rated Power | Rated Torque | Speed | Brake? | Flange (SH) | Typical V90 Drive |
|---|---|---|---|---|---|---|
1FL6042-2AF21-1AH1 | 0.2 kW | 0.64 Nm | 3000 rpm | ❌ No | SH 30 | 6SL3210-5FB10-1UF0 (0.2kW V90) |
1FL6044-2AF21-1AA1 | 0.4 kW | 1.27 Nm | 3000 rpm | ❌ No | SH 40 | 6SL3210-5FB10-2UF0 (0.4kW V90) |
1FL6044-2AF21-1AB1 | 0.4 kW | 1.27 Nm | 3000 rpm | ❌ No | SH 40 | Same as above |
⚠️ Suffix Notes: Siemens 1FL6 full order codes include shaft/encoder/brake/seal options. The base “–1AH1 / –1AA1 / –1AB1” shown are common stock codes — always verify complete 18–20 digit order number against your project BOM (some –A1/–B1 differ in shaft detail or connector orientation per vintage).For brake version of 1FL6044 → look for –1AG1 suffix.
💡 Matching V90 Drive & Cables:
Technical Specifications (Representative — 1FL6044-2AF21-1AA1 / 1AH1, 0.4 kW, No Brake)
Parameter | Specification |
|---|---|
Model / Order Code | 1FL6044-2AF21-1AA1 (Siemens SIMOTICS S-1FL6) |
Rated Power | 0.4 kW (400 W) |
Rated Speed | 3000 rpm (max. overspeed ~ 4500 rpm) |
Rated Torque (Mn) | 1.27 Nm |
Rated Current (motor phase) | ~ 1.6 A (auto-detected by V90) |
Encoder | Absolute encoder — 20-bit single-turn + 12-bit multi-turn (Value Encoder — no battery needed) |
Brake | Not fitted (–H1 / –A1 / –B1 suffixes above) |
Shaft / Key | Plain shaft with keyway — Ø14 mm (SH40 frame); 1FL6042 = Ø11 mm (SH30) |
Flange Size | SH 40 (1FL6044) / SH 30 (1FL6042) |
Cooling | Self-cooled (natural convection) |
Degree of Protection | IP65 (with shaft seal) |
Motor Connector | M23 circular (encoder + brake power if fitted + PE) — mates with 6FX3002-… cables |
Operating Ambient | 0 … +40 °C (derate above); -20 … +60 °C storage |
Weight (Motor Only) | ~ 1.5 kg (1FL6042); ~ 1.8 kg (1FL6044 no brake) |
Standards | CE, UL, cUL, RoHS |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty (rotation & encoder check)
- Technical support for:
- Matching correct V90 drive (PN vs PTI, power rating) & cable set (6FX3002-… power/encoder)
- Brake motor differentiation (–G1 = brake; –H1/–A1/–B1 = no brake)
- Absolute encoder benefits (no homing switch, retained position after power loss — V90 auto-reads)
- Quick-start with SINAMICS V-ASSISTANT (auto-recognition of 1FL6)
- Cross-check if you are migrating from 1FK7 (NOT direct mechanical drop-in — different flange/encoder)
Delivery Time
- Standard delivery: 3-5 working days (stock ratings)
- Express shipping available upon request
Why Choose Our Store
- Genuine Siemens SIMOTICS S-1FL6 + SINAMICS V90 system components
- Global supply network with competitive pricing
- Expertise in 1FL6/V90 commissioning (PROFINET telegram, step/dir, auto-tuning)
- Comprehensive technical documentation (dimensional drawing, 6FX cable part cross-ref, V-ASSISTANT guide)
- Responsive customer service and support
Applications
- Cartesian Robots / XYZ Gantries: Pick-and-place, labeling — V90 PN + 1FL6 controlled by S7-1200/1500
- Packaging Machines: Indexing axes, flight bar drives
- Conveyor / Index Tables: Precise positioning with absolute encoder (no homing switch)
- Lab / Semiconductor Automation: Small precision axes — 20-bit resolution
- Stepper → Servo Retrofit: Eliminate lost steps, improve low-speed torque
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