1FK7022-5AK71-1HH0

What type of motor is this?

It is a permanent-magnet synchronous servo motor from the SIMOTICS S 1FK7 Compact range, intended for dynamic positioning and speed-controlled applications with a servo drive.

What are the key rated performance values?

Typical operating-point data includes a rated speed of 6000 rpm and an optimum operating power of around 0.4 kW, with rated torque around 0.6 Nm (100 K). Values can vary slightly between calculated data and the rating plate.

What are the stall torque values?

Static (stall) torque is specified at approximately 0.85 Nm at 100 K and about 0.70 Nm at 60 K, suitable for applications that need strong low-speed holding and acceleration capability.

What peak/maximum torque can it achieve?

With appropriate drive sizing, the motor can reach a maximum torque of approximately 3.4 Nm, with a maximum current of about 8.0 A.

What is the maximum permissible speed?

The maximum permissible mechanical speed is 10,000 rpm; the maximum permissible inverter speed is also listed as 10,000 rpm, provided the drive and application limits are observed.

Does it include a holding brake, and what are the brake details?

Yes, this variant includes a permanent-magnet holding brake. The holding torque is about 1.0 Nm, with a 24 V DC brake supply (±10%), brake current around 0.3 A, and typical opening/closing times of about 20 ms and 30 ms respectively.

What encoder type is fitted?

It is equipped with an AM512S/R absolute encoder (multi-turn), supporting 4096 revolutions and using an EnDat interface, suitable for accurate positioning and absolute feedback.

What mounting arrangement does it use?

The motor is specified for IM B5 mounting (with IM V1 and IM V3 also indicated), supporting common flange-mount servo installations.

What is the degree of protection and cooling method?

It is rated to IP64 and uses natural cooling, making it suitable for enclosed machine environments where fan cooling is not required.

What electrical connection style does it use?

It uses separate connectors for power and signals, and the connectors are rotatable to assist cable routing and compact machine designs.

What temperature monitoring is available?

A KTY84 temperature sensor is integrated in the stator winding for motor temperature monitoring via the connected drive system.

What are typical electrical constants that may be useful for sizing?

Key constants include a torque constant of about 0.46 Nm/A, voltage constant around 29.0 V/1000 min⁻1 (at 20°C), winding resistance about 4.20 Ω (at 20°C), and rotating field inductance around 9.1 mH. These are commonly referenced when selecting drive parameters for Siemens 1FK7022-5AK71-1HH0.