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Siemens SIMOTICS S 1FK7 High Dynamic Servo Motor - 22 Nm, 3.14 kW, Absolute Encoder

Siemens SIMOTICS S 1FK7 High Dynamic Servo Motor with Absolute Encoder.

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ManufacturerSiemens

Part number1FK7085-7AF71-1EH5

Power 3.14 kW

Torque 22 Nm

Speed 3000 rpm

Cooling Natural

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High Dynamic Performance Absolute Encoder (ENDAT) Holding Brake Enhanced IP Rating (IP65/IP67) 10% Performance Reduction for Encoder RAL7016 Paint Finish

Product description

The Siemens 1FK7085-7AF71-1EH5 is a SIMOTICS S synchronous servo motor from the High Dynamic series, distinguished by its absolute encoder. It delivers 22 Nm of torque and 3.14 kW of power at 3000 rpm. This motor features natural cooling and is designed for IM B5 (V1, V3) mounting, with a rotatable power/signal connector.

This unit is equipped with an absolute encoder (ENDAT 2048 P/REV) and a plain shaft with tolerance N. It includes a holding brake for secure positioning. The degree of protection is IP65 as a flange and IP67 as a housing, offering enhanced protection against environmental factors. Note that the performance is reduced by 10% due to the absolute encoder.

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Technical specifications

Power	3.14 kW
Torque	22 Nm
Speed	3000 rpm
Cooling	Natural
Mounting	IM B5 (V1, V3)
Encoder	Absolute (ENDAT 2048 P/REV)
Shaft	Plain
IP Rating	IP65 (Flange) / IP67 (Housing)
Brake	Yes

Common applications

Robotics

CNC Machinery

Automation Control

Precision Positioning

Material Handling

Compatible systems

SINAMICS S120 SINAMICS S110

Also known as

Siemens 1FK7 Absolute Encoder Motor SIMOTICS S with ENDAT High Dynamic Servo with Brake

Replaces / compatible with

Direct replacement for 1FK7085-7AF71-1AG3 when an absolute encoder and holding brake are required. Consult documentation for compatibility.

Technical note

Expert tip

The 10% performance reduction is a characteristic of using absolute encoders with this motor series, ensuring precise position feedback.

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Frequently asked questions

What is the difference between the 1FK7085-7AF71-1AG3 and 1FK7085-7AF71-1EH5?

The primary differences are the encoder type and the inclusion of a holding brake. The 1FK7085-7AF71-1EH5 features an absolute ENDAT encoder and a holding brake, while the 1FK7085-7AF71-1AG3 uses an incremental encoder and lacks a brake. The 1EH5 also has a higher IP rating.