Key Features
- Performance rating: PN=1.2kW; UDC=600V; M0=3.5Nm (100K); NN=4500rpm.
- Feedback system: Absolute encoder single-turn 20 bits with DRIVE-CLiQ interface (Encoder AS20DQI).
- Mechanical configuration: Naturally cooled, FRAME SIZE IMB 5 (IM V1, IM V3), flange 1, shaft with fitted key, tolerance N.
- Protection and braking: Degree of protection IP64; with holding brake.
Technical Summary
| Product designation | SIMOTICS S Synchronous motor 1FK7-HD |
|---|---|
| Optimum power | 1.2 kW |
| Rated speed (100 K) | 4,500 rpm |
| Static torque (100 K) | 3.50 Nm |
| Max. permissible speed (mech.) | 9,000 rpm |
| Degree of protection | IP64 |
| Cooling | Natural cooling |
| Encoder system | Encoder AS20DQI: absolute encoder single-turn 20 bits |
| Holding brake | with holding brake |
| Power supply voltage | DC 24 V ± 10 % |
| Connector size | M23 |
| Shaft end | Feather key |
Applications
- SINAMICS S120 drive integration: Integration with SINAMICS S120 drive systems.
Frequently Asked Questions
What is the exact Siemens model of this synchronous motor?
The exact model is 1FK7043-4CH71-1QB0.
What are the key ratings for 1FK7043-4CH71-1QB0?
Key ratings include PN=1.2kW, UDC=600V, M0=3.5Nm (100K), and NN=4500rpm.
Which feedback system is used on 1FK7043-4CH71-1QB0?
It uses Encoder AS20DQI: absolute encoder single-turn 20 bits with DRIVE-CLiQ interface.
What mechanical and protection details should be checked for this motor?
It is naturally cooled, has FRAME SIZE IMB 5 (IM V1, IM V3), flange 1, a shaft with fitted key, and degree of protection IP64.
What brake supply is specified for the holding brake?
The holding brake power supply voltage is DC 24 V ± 10 %.
