Motor specs that decide the BOM fit
The 1FL6090-1AC61-0LH1 is a Siemens SIMOTICS S-1FL6 servo motor rated at 2.5 kW continuous power on a 400 V 3 AC supply, with a rated speed of 2000 rpm and a continuous torque of 11.9 Nm. The holding brake is built in — this motor holds position on a powered-down axis, which matters for vertical loads or any application where the load must not drift when the drive is off. The absolute encoder is 20-bit resolution with 12-bit multi-turn tracking, so the drive knows the shaft position immediately on power-up without a homing routine — saves cycle time on multi-axis machines.
Shaft, seal, and mounting constraints
Shaft height is 90 mm with a plain shaft and tolerance N — the coupling bore and the mating machine interface must match this centre height and the plain shaft diameter (no keyway). IP65 with the sealing ring fitted means the motor body and the shaft seal withstand washdown — suitable for food processing, packaging lines, or any environment where hose-down cleaning is routine. Compatible with SINAMICS V70 and V90 drives — the encoder interface, motor feedback, and power cable pinouts are matched to those drive families, so pairing is a straight cable connection without adapter boards.