Technical Summary
| Product designation | SIMOTICS S Synchronous motor 1FK7-HD |
|---|---|
| Optimum power | 1.4 kW |
| Rated torque (100 K) | 3.0 Nm |
| Rated speed (100 K) | 4,500 rpm |
| Rated current | 3.9 A |
| Degree of protection | IP65 |
| Cooling | Natural cooling |
| 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 |
| Power supply voltage | DC 24 V ± 10 % |
Applications
Motor use in SINAMICS S120 drive systems.
Key Features
1FK7-HD motor design for exact order-number identification.
1.4 kW.
3.0 Nm at 4,500 rpm.
Natural cooling with degree of protection IP65.
Encoder IC22DQ with DRIVE-CLiQ interface and rotatable connectors for signals and power.
with holding brake.
Frequently Asked Questions
What is Siemens 1FK7044-4CH71-1DH1?
It is a SIMOTICS S synchronous motor, type 1FK7-HD.
What are the rated power, torque, speed, and current for 1FK7044-4CH71-1DH1?
Optimum power is 1.4 kW, rated torque is 3.0 Nm, rated speed is 4,500 rpm, and rated current is 3.9 A.
What protection and cooling are specified for this Siemens motor?
It has natural cooling and degree of protection IP65.
Which connector and encoder details are specified for 1FK7044-4CH71-1DH1?
The motor has M23 connector size, rotatable connectors for signals and power, and an Encoder IC22DQ incremental encoder with DRIVE-CLiQ interface.
Does 1FK7044-4CH71-1DH1 include a holding brake?
Yes. It is supplied with holding brake.
