Technical Summary
| Product designation | SIMOTICS S Synchronous motor 1FK7-HD |
|---|---|
| Optimum power | 1.2 kW |
| Optimum speed | 3,000 rpm |
| Rated torque (100 K) | 3.7 Nm |
| Static torque (100 K) | 4.50 Nm |
| Rated current | 3.5 A |
| Degree of protection | IP65 |
| Cooling | Natural cooling |
| Design acc. to Code I | IM B5 (IM V1, IM V3) |
| Connector size | M23 |
| Encoder system | Encoder IC22DQ: incremental encoder 22 bits (resolution 4194304, encoder-internal 2048 S/R) + commutation position 11 bits |
| Holding brake | with holding brake |
Applications
For motion control in a SINAMICS S120 drive setup.
For holding a load with the integrated holding brake.
Key Features
SIMOTICS S Synchronous motor 1FK7-HD for exact part identification.
Optimum power: 1.2 kW; optimum speed: 3,000 rpm.
Encoder IC22DQ: incremental encoder 22 bits with DRIVE-CLiQ interface.
Natural cooling with degree of protection IP65.
Design acc. to Code I: IM B5 (IM V1, IM V3); connector size M23; electrical connectors for signals and power rotatable.
with holding brake; holding torque 4.0 Nm; power supply voltage DC 24 V ± 10 %.
Frequently Asked Questions
What is the exact Siemens model and product type?
1FK7044-4CF71-1DH1 is a SIMOTICS S synchronous motor, 1FK7-HD.
What are the rated speed and output power?
Optimum speed is 3,000 rpm and optimum power is 1.2 kW.
What encoder and communication interface does it use?
It uses Encoder IC22DQ: incremental encoder 22 bits with DRIVE-CLiQ interface.
What are the protection and mounting details?
The motor has IP65 protection and design acc. to Code I: IM B5 (IM V1, IM V3).
