Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Rated power | PN=2.7 kW |
| DC link voltage | UDC=600 V |
| Rated speed | 3,000 rpm |
| Rated torque (100 K) | 8.7 Nm |
| Maximum permissible speed | 6,000 rpm |
| Encoder resolution | 20 bits; resolution 1048576 |
| Multi-turn encoder range | 12 bits; 4096 revolutions |
| Protection | IP65 |
| Mounting design | IM B5 (IM V1, IM V3) |
| Connector size | M23 |
| Holding torque | 22.0 Nm |
| Holding brake supply | DC 24 V ± 10 % |
Key Features
- Motor performance: PN=2.7 kW, rated speed 3,000 rpm, rated torque (100 K) 8.7 Nm, and efficiency 93.0 %.
- Encoder and interface: Encoder AM20DQI: absolute encoder 20 bits with resolution 1048576 and 12 bits multi-turn with a traversing range of 4096 revolutions; DRIVE-CLiQ interface.
- Electrical data: UDC=600 V, rated current 6.8 A, and maximum current 30.0 A.
- Mechanical design: Natural cooling, IM B5 (IM V1, IM V3) design, M23 connector size, rotatable signal and power connectors, and a feather-key shaft.
- Protection and monitoring: IP65 degree of protection and Pt1000 temperature sensor.
- Holding brake: Permanent-magnet holding brake with holding torque 22.0 Nm, DC 24 V ± 10 % power supply voltage, and coil current 0.9 A.
Frequently Asked Questions
1. What motor type is the Siemens 1FK7081-2AF71-1RB1?
It is a compact permanent-magnet synchronous motor with natural cooling.
2. What encoder is installed?
It has an Encoder AM20DQI: absolute encoder 20 bits with resolution 1048576 and 12 bits multi-turn with a traversing range of 4096 revolutions, plus a DRIVE-CLiQ interface.
3. What are the motor speed and torque limits?
Rated speed is 3,000 rpm, rated torque (100 K) is 8.7 Nm, maximum permissible speed is 6,000 rpm, and maximum torque is 37.0 Nm.
4. What connectors and mounting design does it have?
It has M23 connectors, rotatable connectors for signals and power, and design IM B5 (IM V1, IM V3).
5. What holding-brake data should be verified before inquiry?
The permanent-magnet holding brake has 22.0 Nm holding torque, DC 24 V ± 10 % power supply voltage, 0.9 A coil current, 200 ms opening time, and 60 ms closing time.
