Key Features
- Motor type: SIMOTICS S Synchronous motor 1FK7-HD.
- Optimum power: 1.2 kW.
- Rated speed (100 K): 3,000 rpm.
- Encoder system: Encoder AM20DQI: absolute encoder 20 bits + 12 bits multi-turn with DRIVE-CLIQ interface.
- Cooling: Natural cooling.
- Degree of protection: IP65 and DE flange IP67.
Technical Summary
| Product designation | 1FK7044-4CF71-1RA2 |
|---|---|
| Motor type | Permanent-magnet synchronous motor |
| High Dynamic motor type | High Dynamic |
| Optimum power | 1.2 kW |
| Rated speed (100 K) | 3,000 rpm |
| Static torque (100 K) | 4.50 Nm |
| Maximum torque | 13.0 Nm |
| Rated current | 3.5 A |
| Max. permissible speed (mech.) | 9,000 rpm |
| Encoder system | Encoder AM20DQI: absolute encoder 20 bits (resolution 1048576, encoder-internal 512 S/R) + 12 bits multi-turn (traversing range 4096 revolutions) |
| Connector size | M23 |
| Degree of protection | IP65 and DE flange IP67 |
Applications
- SINAMICS S120 drive integration: Servomotor use within SINAMICS S120 configurations.
Frequently Asked Questions
What is the exact Siemens model number of this motor?
The model number is 1FK7044-4CF71-1RA2.
What are the key rated performance values for 1FK7044-4CF71-1RA2?
Key values include PN=1.2kW, UDC=600V, M0=4.5Nm (100K), NN=3000rpm, and a rated speed (100 K) of 3,000 rpm.
Which encoder is fitted to 1FK7044-4CF71-1RA2?
It uses an absolute encoder AM20DQI with 20 bits plus 12 bits multi-turn and a DRIVE-CLIQ interface.
What mechanical and protection details are supplied for this motor?
It has natural cooling, IM B5 (IM V1, IM V3) design, an M23 connector size, a feather key shaft end, without holding brake, and degree of protection IP65 and DE flange IP67.
