0.75 kW servo motor for SINAMICS V70/V90 drives
The Siemens 1FL6044-1AF61-0AB1 is a SIMOTICS S-1FL6 servo motor rated 0.75 kW at 3000 rpm nominal speed, with a rated torque of 2.39 Nm and a standstill torque M0 of 3.5 Nm. It operates on 400 V three-phase AC and is designed as a spare part for integration with SINAMICS V70 and V90 servo drives.
The 2.39 Nm rated torque (MN) defines the continuous load capability at 3000 rpm; the 3.5 Nm standstill torque (M0) gives the holding torque at zero speed, which matters for vertical-axis applications where the holding brake must support the load before the drive engages. The incremental encoder with 2500 pulses per revolution provides position feedback for the SINAMICS drive's closed-loop control — the TTL output is compatible with the V70/V90 encoder input without an interface converter. The integrated holding brake holds the motor shaft when power is removed, eliminating the need for an external brake resistor or mechanical brake on the load side.