1FK7042-2AF71-1RH0 Siemens SIMOTICS S-1FK7 Servo Motor, 3 Nm, 3000 rpm, with Brake
The Siemens 1FK7042-2AF71-1RH0 is a compact SIMOTICS S-1FK7 CT synchronous servo motor rated 0.82 kW, with a stall torque of 3 Nm and a rated speed of 3000 rpm, for SINAMICS S120 drive systems at 600 V DC link. It combines an AM20DQI absolute multi-turn encoder with DRIVE-CLiQ interface, a plain shaft and an integrated holding brake. This makes it well suited to small, precise positioning axes, including vertical or loaded axes that must be held securely at standstill.
1FK7042-2AF71-1RH0 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 20-bit + 12-bit multi-turn (AM20DQI) with DRIVE-CLiQ interface |
| Shaft | Plain shaft, tolerance N |
| Holding brake | Yes |
| Degree of protection | IP64 |
Key Benefits
- Compact 1FK7042 frame: high torque density for space-critical axes
- Absolute position after power-off: multi-turn AM20DQI encoder, no homing required
- DRIVE-CLiQ integration: automatic motor identification and fast commissioning with SINAMICS S120
- Holding brake built in: holds vertical and gravity-loaded axes safely at standstill
- Plain shaft: backlash-free clamping connection to couplings and gearboxes
- Low maintenance: naturally cooled, IP64 protected
Typical Applications
- Small feed and auxiliary axes on machine tools
- Packaging, labelling and filling machines
- Handling, pick-and-place and gantry axes
- Printing, converting and electronics assembly machines
1FK7042 Variants
| Order number | Configuration (Siemens) |
|---|---|
| 1FK7042-2AF71-1RH0 | 3000 rpm, AM20DQI encoder, plain shaft, with holding brake, IP64 |
| 1FK7042-2AF71-1RG0 | 3000 rpm, AM20DQI encoder, plain shaft, without holding brake, IP64 |
| 1FK7042-2AF71-1PG1 | 3000 rpm, 2-pole resolver with DRIVE-CLiQ, plain shaft, without brake, IP65 |
| 1FK7042-2AK71-1RH0 | 6000 rpm version, AM20DQI encoder, with holding brake |
Buy the 1FK7042-2AF71-1RH0 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 stock, pricing and lead time on the 1FK7042-2AF71-1RH0. Request your quote today.
