Product Overview
Technical Summary
| Product designation | SIMOTICS S synchronous motor 1FK7-HD |
|---|---|
| Optimum power | 1.4 kW |
| Optimum speed | 4,500 rpm |
| Rated speed (100 K) | 4,500 rpm |
| Rated torque (100 K) | 3.0 Nm |
| Encoder system | Absolute encoder 20 bits + 12 bits multi-turn, DRIVE-CLiQ interface |
| Mounting design | IM B5 (IM V1, IM V3) |
| Connector size | M23 |
| Cooling | Natural cooling |
| Holding brake | Permanent-magnet brake, holding torque 4.0 Nm |
| Degree of protection | IP65 |
| Power supply voltage | DC 24 V ± 10 % |
Key Features
- Product designation: SIMOTICS S synchronous motor, 1FK7-HD, with permanent-magnet synchronous motor and High Dynamic motor types.
- Performance: Optimum power: 1.4 kW; optimum speed: 4,500 rpm; rated torque: 3.0 Nm (100 K).
- Encoder system: Absolute encoder 20 bits with 12 bits multi-turn, DRIVE-CLiQ interface, resolution 1048576 and traversing range 4096 revolutions.
- Mounting and shaft: Design acc. to Code I: IM B5 (IM V1, IM V3); plain shaft; flange 1.
- Connection and cooling: M23 connectors; signals and power connectors rotatable; natural cooling.
- Brake and protection: Permanent-magnet holding brake with 4.0 Nm holding torque; degree of protection IP65.
Frequently Asked Questions
What product does Siemens order number 1FK7044-4CH71-1RH1 identify?
It identifies a SIMOTICS S synchronous motor, 1FK7-HD, with 1.4 kW optimum power, 4,500 rpm optimum speed, an absolute encoder and a holding brake.
Which encoder details distinguish this motor variant?
It has an absolute encoder with 20 bits and 12 bits multi-turn, a DRIVE-CLiQ interface, resolution 1048576 and a traversing range of 4096 revolutions.
What mounting, shaft and connection details should be checked?
Check IM B5 (IM V1, IM V3), flange 1, plain shaft, M23 connector size and rotatable connectors for signals and power.
Does this configuration include a holding brake and IP65 protection?
Yes. It has a permanent-magnet holding brake with 4.0 Nm holding torque and degree of protection IP65.
