Siemens 1FK7060-2AF71-1QB0 SIMOTICS S 1FK7-CT 1.5kW 6Nm 3000rpm Brake Servo Motor

The Siemens 1FK7060-2AF71-1QB0 is a SIMOTICS S 1FK7-CT synchronous servo motor rated 1.5 kW, 6 Nm standstill torque (M0, 100K), and 3000 rpm rated speed at 600 VDC bus voltage. It is naturally cooled, IMB5-mounted, and fitted with a DRIVE-CLiQ absolute single-turn 20-bit encoder (AS20DQI); this order number adds a holding brake, raising the moment of inertia to 8.700 kgcm².

Technical Specifications

Selection Notes

This 1FK7060-2AF71 winding adds a holding brake, making it the choice for vertical or unbalanced axes that must hold position on power loss; the brake and its hardware raise the moment of inertia to 8.700 kgcm² and total weight to 8.5 kg. The 1.33 Nm/A torque constant and 3.7 A rated current for 6 Nm standstill torque are unchanged from the brake-less build in this winding, since the brake sits at the non-drive end and does not alter the stator's electrical design. Shaft torsional stiffness is 28,500 Nm/rad, lower than the brake-less version in this frame due to the added overhang mass on the shaft.

Applications

Natural (fan-less) cooling and IP64 protection suit compact machine enclosures without forced airflow. The DRIVE-CLiQ interface connects directly to SINAMICS S120/S210 drive systems over a single feedback cable. The holding brake makes this winding suited to vertical ball-screw axes, tilting tables, and other unbalanced loads that must not drop when the drive is disabled.