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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.
- Model Naming Convention
| ส่วนรหัส | คำอธิบาย | Values for 1FL6042 Series |
| 1FL6 | Siemens SIMOTICS S series servo motor identifier | ที่ตายตัว |
| 42 | Product code representing specific power and frame size | ที่ตายตัว |
| 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) | ||
| ก / ช / ล / M | Encoder type | Feedback selection |
| – A/G/H: Incremental (2500 incr./rev) | ||
| – ล: Absolute (20‑bit single‑turn, 12‑bit multi‑turn) | ||
| – M: Incremental (2500 incr./rev), plain shaft | ||
| ก / บี | Brake configuration | Brake option |
| – ก: No brake | ||
| – บี: With brake |
- Complete Model List & การเปรียบเทียบพารามิเตอร์ที่สำคัญ
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.
| แบบอย่าง | Encoder Type | Shaft Type | Brake | Key Features |
| 1FL6042‑2AF21‑1AA1 | Incremental (2500) | Keyed | เลขที่ | Basic version, straight connector |
| 1FL6042‑2AF21‑1AB1 | Incremental (2500) | Keyed | Yes | With brake, for vertical loads |
| 1FL6042‑2AF21‑1AG1 | Incremental (2500) | Plain | เลขที่ | Plain shaft for special couplings |
| 1FL6042‑2AF21‑1AH1 | Incremental (2500) | Plain | Yes | Plain shaft + brake |
| 1FL6042‑2AF21‑1LA1 | Absolute (20‑bit) | Keyed | เลขที่ | Absolute encoder, no homing required |
| 1FL6042‑2AF21‑1LB1 | Absolute (20‑bit) | Keyed | Yes | Absolute encoder + brake |
| 1FL6042‑2AF21‑1MA1 | Incremental (2500) | Plain | เลขที่ | Plain shaft, straight connector |
| 1FL6042‑2AF21‑1MB1 | Incremental (2500) | Plain | Yes | Plain shaft + brake, 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.
| แบบอย่าง | Encoder Type | Connector | Brake | Key Features |
| 1FL6042‑1AF61‑0AA1 | Incremental (2500) | Straight | เลขที่ | Basic, 400 V 3‑phase |
| 1FL6042‑1AF61‑0AB1 | Incremental (2500) | Straight | Yes | With brake |
| 1FL6042‑1AF61‑0AG1 | Incremental (2500) | Straight | เลขที่ | Plain shaft |
| 1FL6042‑1AF61‑0AH1 | Incremental (2500) | Straight | Yes | Plain shaft + brake |
| 1FL6042‑1AF61‑0LA1 | Absolute (20‑bit) | Straight | เลขที่ | Absolute encoder |
| 1FL6042‑1AF61‑0LB1 | Absolute (20‑bit) | Straight | Yes | Absolute encoder + brake |
| 1FL6042‑1AF61‑2AA1 | Incremental (2500) | Right‑angle | เลขที่ | Right‑angle connector, space‑saving |
| 1FL6042‑1AF61‑2AB1 | Incremental (2500) | Right‑angle | Yes | Right‑angle + brake |
| 1FL6042‑1AF61‑2AG1 | Incremental (2500) | Right‑angle | เลขที่ | Plain shaft + right‑angle |
| 1FL6042‑1AF61‑2AH1 | Incremental (2500) | Right‑angle | Yes | Plain shaft + right‑angle + brake |
| 1FL6042‑1AF61‑2LA1 | Absolute (20‑bit) | Right‑angle | เลขที่ | Absolute encoder + right‑angle |
| 1FL6042‑1AF61‑2LB1 | Absolute (20‑bit) | Right‑angle | Yes | Absolute encoder + right‑angle + brake |
- Key Differences & Selection Guide
3.1 LI vs HI Core Comparison
| รายการ | Low Inertia (2AF21) | High Inertia (1AF61) | Selection Tip |
| พลัง | 0.75 kW | 0.4 kW | Match load power |
| แรงดันไฟฟ้า | 230 V (1/3‑phase) | 400 V (3‑phase) | Match site power |
| Rated Torque | 2.39 Nm | 1.27 Nm | Higher torque density: LI |
| Peak Torque | 7.20 Nm | 1.9 Nm | Better dynamics: LI |
| Rotor Inertia | ต่ำ (0.897 kg·cm²) | สูง | HI for high‑inertia loads; LI for fast start/stop |
| Frame Size | 40 mm | 45 mm | HI is slightly larger |
3.2 Encoder Selection
| Encoder Type | ข้อดี | การใช้งานทั่วไป |
| Incremental | Lower cost, fast response | General positioning, no position retention after power loss |
| Absolute | Position retained after power loss, no homing | High‑precision positioning, quick recovery after safety stop |
3.3 Brake Selection
| Configuration | การใช้งานทั่วไป |
| With Brake | Vertical axes, drop prevention, emergency holding |
| No Brake | Horizontal axes, คุ้มค่า, high‑speed applications |
- ความเข้ากันได้ & Applications
All 1FL6042 series motors are fully compatible with SINAMICS V90 servo drives, support PROFINET / อีเธอร์แคท, and have IP65 protection.
Low Inertia (2AF21): Electronics manufacturing, เครื่องจักรบรรจุภัณฑ์, labeling machines, high‑speed conveyors
High Inertia (1AF61): Printing machinery, textile equipment, small machine tools, material handling systems
