Product Description:

The QSY112C-030-HG0-BN is a synchronous servo motor manufactured by Bosch Rexroth Indramat within the QSY Synchronous Servo Motors series. Designed for closed-loop industrial axes, it delivers controllable rotary motion that a drive controller can synchronize with machine cycles, conveyors, or tooling. Motor feedback allows the controller to correct position and speed deviations as the applied load changes. This control capability supports accurate movement in vertically loaded axes and other applications that require repeatable positioning.

During continuous operation, the motor can supply 3.8 kW of mechanical power at its rated speed of 3000 rpm. This operating point is achieved with a rated torque of 12.0 Nm while the paired drive operates from a DC bus of 336 V. At the same thermal reference, the drive must furnish 8.5 A of phase current. The motor has four pole pairs, which establish the electrical frequency corresponding to the 3000 rpm mechanical output. A rotor inertia of 303 kg·cm² balances fast acceleration with load stability, while the 45.0 kg mass provides thermal capacity for repeatable operation during extended duty cycles.

Higher load events are handled by a stall torque of 44.0 Nm, which the motor can maintain while the winding temperature remains within the 100 K limit; this condition draws a stall current of 31.3 A. For brief moves, the controller may command a maximum torque of 148.0 Nm and a corresponding surge current of 121.5 A for up to 200 ms, supplying additional force for rapid indexing or overcoming static friction. When power is removed, the permanent-magnet brake produces a holding torque of 70.0 Nm. The brake is released by a 24 V DC supply, and its coil draws 1.3 A during release. Cabling and protective devices must accommodate the rated current, temporary surge current, and brake supply requirements.