Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Optimum power | 2.1 kW |
| Rated speed (100 K) | 2,000 rpm |
| Static torque (100 K) | 12.00 Nm |
| Rated current | 4.4 A |
| Maximum current | 17.2 A |
| Encoder system | Absolute encoder AM20DQI: 20 bits + 12 bits multi-turn, DRIVE-CLiQ |
| Cooling | Natural cooling |
| Design | IM B5 (IM V1, IM V3) |
| Connector size | M23 |
| Degree of protection | IP65 |
| Shaft end | Feather key |
Key Features
- Motor performance: Permanent-magnet synchronous motor with 2.1 kW optimum power, 2,000 rpm rated speed, 12.00 Nm static torque at 100 K, and 93.0 % efficiency.
- Electrical ratings: Rated current: 4.4 A. Maximum current: 17.2 A. Rated inverter current: 5 A; maximum inverter current: 15 A.
- Encoder and interface: Absolute encoder AM20DQI with 20 bits, 1048576 resolution, encoder-internal 512 S/R, plus 12 bits multi-turn over 4096 revolutions with DRIVE-CLiQ interface.
- Mechanical design: Natural cooling with IM B5 (IM V1, IM V3) design, M23 connector size, rotatable signal and power connectors, and shaft with Feather key.
- Protection and monitoring: Degree of protection: IP65. Temperature monitoring uses a Pt1000 temperature sensor. The motor has no holding brake.
Frequently Asked Questions
1. What type of motor is the Siemens 1FK7081-2AC71-1RA1?
It is a compact permanent-magnet synchronous motor with 2.1 kW optimum power.
2. What encoder is installed on this motor?
It has an absolute encoder AM20DQI with 20 bits and 12 bits multi-turn, with a DRIVE-CLiQ interface.
3. What are the motor speed and current ratings?
Rated speed is 2,000 rpm at 100 K and rated current is 4.4 A. Maximum permissible speed is 6,000 rpm mechanically and 3,750 rpm with the inverter; maximum current is 17.2 A.
4. What are the mounting and connection details?
The design is IM B5 (IM V1, IM V3), with M23 connector size, rotatable signal and power connectors, and a shaft with Feather key. It is without holding brake.
