1FK7042-2AF71-1QA0 Siemens SIMOTICS S-1FK7 Servo Motor, 3 Nm, 3000 rpm, AS20DQI, Keyed Shaft
The Siemens 1FK7042-2AF71-1QA0 is a SIMOTICS S-1FK7 Compact (CT) synchronous servo motor rated 0.82 kW, with 3 Nm stall torque and a rated speed of 3000 rpm, for SINAMICS S120 drives at 600 V DC link. This version has an AS20DQI single-turn 20-bit absolute encoder with DRIVE-CLiQ interface and a shaft with feather key, and comes without a holding brake. That makes it suitable for horizontal axes, rotary indexing and continuously rotating applications that need precise positioning but no brake.
1FK7042-2AF71-1QA0 Technical Data (Siemens)
| Specification | Value |
|---|---|
| Product | SIMOTICS S-1FK7 synchronous motor, 1FK7 Compact (CT) |
| Rated power (PN) | 0.82 kW |
| Stall torque (M0, 100 K) | 3 Nm |
| Rated speed (NN) | 3000 rpm |
| DC link voltage | 600 V |
| Cooling | Natural cooling |
| Type of construction | IM B5 (IM V1, IM V3) |
| Connection | Flange 1 power connector, rotatable |
| Encoder | Absolute encoder single-turn 20-bit with DRIVE-CLiQ interface (AS20DQI) |
| Shaft | With feather key, tolerance N |
| Holding brake | No |
| Degree of protection | IP64 |
| Net weight | Approx. 4.6 kg |
| EAN | 040892926071 |
| Country of origin | Germany |
Key Benefits
- 20-bit single-turn absolute encoder: high resolution within one revolution, with DRIVE-CLiQ for digital, noise-immune communication
- Plug-and-play with SINAMICS S120: electronic rating plate for automatic motor identification
- Keyed shaft: positive-locking connection for pulleys, pinions and gearboxes
- No brake: shorter, lighter motor for horizontal axes and continuously rotating drives
- Compact 1FK7042 frame with high torque density
- Naturally cooled and IP64: no fan, low maintenance
Typical Applications
- Horizontal feed and positioning axes
- Rotary tables and indexing drives
- Packaging, labelling and printing machines
- Conveyor and handling axes without load holding
1FK7042-2AF71 Versions with AS20DQI Encoder
| Order number | Shaft | Holding brake |
|---|---|---|
| 1FK7042-2AF71-1QA0 | Feather key | No |
| 1FK7042-2AF71-1QB0 | Feather key | Yes |
| 1FK7042-2AF71-1QG0 | Smooth shaft | No |
| 1FK7042-2AF71-1QH0 | Smooth shaft | Yes |
For an absolute multi-turn encoder (AM20DQI), see the 1FK7042-2AF71-1RH0 (smooth shaft, with brake).
Buy the 1FK7042-2AF71-1QA0 Siemens from Atlantech Drives
Atlantech Drives supplies genuine Siemens SIMOTICS S servo motors and SINAMICS components worldwide, with fast shipping. Contact our commercial team for availability, pricing and lead time on the 1FK7042-2AF71-1QA0. Request your quote today.
