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Siemens 1FL6042-2AF21-1AB1 Servo Motor Siemens 1FL6042-2AF21-1AB1 Servo Motor
The 1FL6042 series is a core product line in Siemens’ SIMOTICS S‑1FL6 family, designed specifically for the SINAMICS V90 Servo Drive System. It is divided into Low Inertia (LI) and High Inertia (HI) versions, covering power ratings of 0.4 kW and 0.75 kW, and supporting 230 V / 400 V power supply.
- Modellbenennungskonvention
| Codesegment | Beschreibung | Values for 1FL6042 Series |
| 1FL6 | Siemens SIMOTICS S series servo motor identifier | Behoben |
| 42 | Product code representing specific power and frame size | Behoben |
| 1AF61 / 2AF21 | Design code | Main distinction |
| – 1AF61: HI, 400 V 3‑phase | ||
| – 2AF21: LI, 230 V 1/3‑phase | ||
| 1-2 | Encoder & connector type | Connector orientation |
| – 1: Straight connector | ||
| – 2: Right‑angle connector (HI only) | ||
| A / G / L / M | Encodertyp | Feedback selection |
| – A/G/H: Inkrementell (2500 incr./rev) | ||
| – L: Absolute (20‑Bit Singleturn, 12‑Bit-Multiturn) | ||
| – M: Inkrementell (2500 incr./rev), plain shaft | ||
| A / B | Brake configuration | Brake option |
| – A: Keine Bremse | ||
| – B: Mit Bremse |
- Vollständige Modellliste & Vergleich der wichtigsten Parameter
2.1 Low Inertia Series (LI, 2AF21, 0.75 kW, 230 V)
Optimized low‑inertia rotor design for high‑dynamic performance.
Frame size 40 mm, rated torque 2.39 Nm, peak torque 7.20 Nm, rated speed 3000 rpm.
| Modell | Encodertyp | Wellentyp | Bremse | Hauptmerkmale |
| 1FL6042‑2AF21‑1AA1 | Inkrementell (2500) | Keyed | NEIN | Basisversion, straight connector |
| 1FL6042‑2AF21‑1AB1 | Inkrementell (2500) | Keyed | Ja | Mit Bremse, for vertical loads |
| 1FL6042‑2AF21‑1AG1 | Inkrementell (2500) | Plain | NEIN | Plain shaft for special couplings |
| 1FL6042‑2AF21‑1AH1 | Inkrementell (2500) | Plain | Ja | Plain shaft + Bremse |
| 1FL6042‑2AF21‑1LA1 | Absolute (20-bisschen) | Keyed | NEIN | Absolutwertgeber, keine Referenzfahrt erforderlich |
| 1FL6042‑2AF21‑1LB1 | Absolute (20-bisschen) | Keyed | Ja | Absolutwertgeber + Bremse |
| 1FL6042‑2AF21‑1MA1 | Inkrementell (2500) | Plain | NEIN | Plain shaft, straight connector |
| 1FL6042‑2AF21‑1MB1 | Inkrementell (2500) | Plain | Ja | Plain shaft + Bremse, straight connector |
2.2 High Inertia Series (HI, 1AF61, 0.4 kW, 400 V)
High‑inertia rotor for stable operation and better inertia matching.
Frame size 45 mm, rated torque 1.27 Nm, peak torque 1.9 Nm, rated speed 3000 rpm.
| Modell | Encodertyp | Stecker | Bremse | Hauptmerkmale |
| 1FL6042‑1AF61‑0AA1 | Inkrementell (2500) | Straight | NEIN | Basic, 400 V 3‑phase |
| 1FL6042‑1AF61‑0AB1 | Inkrementell (2500) | Straight | Ja | Mit Bremse |
| 1FL6042‑1AF61‑0AG1 | Inkrementell (2500) | Straight | NEIN | Plain shaft |
| 1FL6042‑1AF61‑0AH1 | Inkrementell (2500) | Straight | Ja | Plain shaft + Bremse |
| 1FL6042‑1AF61‑0LA1 | Absolute (20-bisschen) | Straight | NEIN | Absolutwertgeber |
| 1FL6042‑1AF61‑0LB1 | Absolute (20-bisschen) | Straight | Ja | Absolutwertgeber + Bremse |
| 1FL6042‑1AF61‑2AA1 | Inkrementell (2500) | Right‑angle | NEIN | Right‑angle connector, platzsparend |
| 1FL6042‑1AF61‑2AB1 | Inkrementell (2500) | Right‑angle | Ja | Right‑angle + Bremse |
| 1FL6042‑1AF61‑2AG1 | Inkrementell (2500) | Right‑angle | NEIN | Plain shaft + right‑angle |
| 1FL6042‑1AF61‑2AH1 | Inkrementell (2500) | Right‑angle | Ja | Plain shaft + right‑angle + Bremse |
| 1FL6042‑1AF61‑2LA1 | Absolute (20-bisschen) | Right‑angle | NEIN | Absolutwertgeber + right‑angle |
| 1FL6042‑1AF61‑2LB1 | Absolute (20-bisschen) | Right‑angle | Ja | Absolutwertgeber + right‑angle + Bremse |
- Hauptunterschiede & Auswahlhilfe
3.1 LI vs HI Core Comparison
| Artikel | Low Inertia (2AF21) | High Inertia (1AF61) | Auswahltipp |
| Leistung | 0.75 kW | 0.4 kW | Match load power |
| Stromspannung | 230 V (1/3-Phase) | 400 V (3-Phase) | Match site power |
| Nenndrehmoment | 2.39 Nm | 1.27 Nm | Higher torque density: LI |
| Spitzendrehmoment | 7.20 Nm | 1.9 Nm | Better dynamics: LI |
| Rotor Inertia | Niedrig (0.897 kg·cm²) | Hoch | HI for high‑inertia loads; LI for fast start/stop |
| Rahmengröße | 40 mm | 45 mm | HI is slightly larger |
3.2 Encoder Selection
| Encodertyp | Vorteile | Typische Anwendungen |
| Inkrementell | Niedrigere Kosten, schnelle Reaktion | General positioning, no position retention after power loss |
| Absolute | Position retained after power loss, no homing | Hochpräzise Positionierung, quick recovery after safety stop |
3.3 Brake Selection
| Konfiguration | Typische Anwendungen |
| Mit Bremse | Vertical axes, drop prevention, emergency holding |
| Keine Bremse | Horizontal axes, kostengünstig, high‑speed applications |
- Kompatibilität & Anwendungen
All 1FL6042 series motors are fully compatible with SINAMICS V90 servo drives, support PROFINET / EtherCAT, and have IP65 protection.
Low Inertia (2AF21): Elektronikfertigung, Verpackungsmaschinen, Etikettiermaschinen, high‑speed conveyors
High Inertia (1AF61): Druckmaschinen, Textilausrüstung, kleine Werkzeugmaschinen, material handling systems
