Technical Summary
| Product designation | SIMOTICS S Synchronous motor 1FK7-HD |
|---|---|
| Active lifecycle | Active Product |
| Optimum power | 1.4 kW |
| Rated speed (100 K) | 4,500 rpm |
| Rated torque (100 K) | 3.0 Nm |
| Number of poles | 6 |
| Rated current | 3.9 A |
| Cooling | Natural cooling |
| Connector size | M23 |
| Degree of protection | IP65 and DE flange IP67 |
| Design acc. to Code I | IM B5 (IM V1, IM V3) |
| Encoder system | Encoder AM20DQI: absolute encoder 20 bits (resolution 1048576, encoder-internal 512 S/R) + 12 bits multi-turn (traversing range 4096 revolutions) |
Applications
Servomotor use for SINAMICS S120 drive systems.
Encoder-based drive feedback using the DRIVE-CLIQ interface and absolute encoder AM20DQI.
Key Features
SIMOTICS S Synchronous motor 1FK7-HD with Active Product lifecycle.
PN=1.4kW, UDC=600V, M0=4.5Nm (100K), and NN=4500rpm.
Absolute encoder 20 BIT + 12 BIT MULTITURN with DRIVE-CLIQ interface (ENCODER AM20DQI) and connectors for signals and power rotatable.
Naturally cooled with Degree of protection IP65 and DE flange IP67.
FRAME SIZE IMB 5 (IM V1, IM V3), shaft with fitted key, tolerance N, and without holding brake.
Frequently Asked Questions
What is Siemens 1FK7044-4CH71-1RA2?
It is a SIMOTICS S synchronous motor 1FK7-HD.
What are the rated power and rated speed of 1FK7044-4CH71-1RA2?
Rated power is 1.4 kW and rated speed (100 K) is 4,500 rpm.
Which encoder interface does 1FK7044-4CH71-1RA2 use?
It uses an absolute encoder AM20DQI with DRIVE-CLIQ interface.
What are the protection and cooling details for this motor?
Cooling is natural cooling, with degree of protection IP65 and DE flange IP67.
