Product Description:

The QSY090B-020-HG0-UN is a synchronous servo motor produced by Bosch Rexroth Indramat within the QSY Synchronous Servo Motors series. It is intended for closed-loop motion tasks that require precise speed and torque regulation, such as positioning axes on packaging, printing, or material-handling machinery. By combining permanent-magnet excitation with digital feedback, the motor supplies controlled mechanical power directly to the load while allowing the drive controller to monitor position and velocity in real time.

This model delivers a continuous shaft output of 2.3 kW at its nominal operating point. The rated torque of 11.0 Nm is maintained while the rotor spins at a rated speed of 2000 rpm, allowing machines to hold a steady velocity under constant load. To achieve that operating point, the drive must supply a rated current of 6.0 A at a DC bus voltage near 305 V. The motor has 4 pole pairs, which establish the electrical angle and contribute to smooth torque production as the stator fields rotate. Cable capacity, inverter capacity, and cooling airflow must account for these thermal and electrical operating values.

Short bursts of demand can be met with a maximum torque of 43.5 Nm and a corresponding peak current of 30.0 A for up to 200 milliseconds, providing the headroom needed for acceleration or disturbance rejection. Dynamic behavior is further influenced by a rotor inertia of 43.0 kg·cm², which balances quick response with rotational stability. Incremental feedback provides 2,048 counts per revolution for position and velocity monitoring. A power connector that rotates through 270 degrees allows flexible cable routing in compact machine layouts. The motor also has a stall torque limit of 13.0 Nm and an overall weight of 14.0 kg, which must be considered when selecting mounting hardware and evaluating the supported mechanical load.