Product Description:

The QSY090B-020-HP0-UN is a synchronous servo motor produced by Bosch Rexroth Indramat for the QSY Synchronous Servo Motors series. As a servo actuator, it provides closed-loop position and velocity control for machine axes, conveyor stages, and indexing tables in automated equipment. Its electromagnetic design and feedback compatibility allow precise torque delivery across the dynamic duty cycles common in packaging, printing, and material-handling machinery.

During continuous operation, the motor delivers 2.3 kW of mechanical output while turning at a nominal speed of 2000 rpm. It produces a rated torque of 11.0 Nm with a rated current of 6.0 A. The winding operates from a DC bus of 305 V. The motor has 4 pole pairs, so each electrical cycle advances the shaft by 90 mechanical degrees and supports smooth commutation at low speeds. When the rotor is locked, the winding produces a stall torque of 13.0 Nm at a stall current of 7.2 A. This stall capability indicates the thermal limit that must be considered during static holding tasks. Momentary peak performance provides additional torque and current for rapid acceleration before the motor returns to its continuous operating range.

Short-term overload is permitted for no more than 200 ms, after which the controller must reduce demand to limit temperature rise. The maximum peak current is 30.0 A, and the corresponding peak torque is 43.5 Nm. Magnetic saturation and the insulation class restrict operation at these peak values to brief intervals. A fixed bearing arrangement maintains axial alignment, and the bearing set has a service life of 30,000 h under standard loading. Thrust on the shaft should not exceed an axial force ratio of 0.34 × FRmax to preserve the expected bearing life. Power is supplied through a 9-pin flange socket, which provides a compact connection for installation in modular drive systems.