Product Description:

The QSY090B-030-HG0-UN is a synchronous servo motor produced by Bosch Rexroth Indramat within the QSY Synchronous Servo Motors series. In industrial automation, this rotary actuator pairs with digital drive controllers to deliver commanded torque and speed quickly and repeatably, allowing machinery to index, interpolate, or follow dynamic motion profiles with minimal position error. Its electromagnetic design, featuring permanent-magnet excitation and feedback interfaces, supports integration into multi-axis systems where compact size and reliable thermal behavior are mandatory.

Under continuous duty at a winding temperature rise of 100 K, the motor develops a rated mechanical output of 2.7 kW. This corresponds to a shaft speed of 3000 rpm and a steady torque of 8.5 Nm. To sustain this operating point, the stator draws a phase current of 6.6 A from an inverter that supplies a nominal line-to-line voltage of 330 V. Four pole pairs embedded in the rotor establish the synchronous relationship between the drive’s excitation frequency and mechanical rotation, enabling fine-resolution control steps. Power conductors and protective earth are routed through a 9-pin flange socket so installation can be completed with a single circular connector rather than discrete terminals.

In rapid indexing or braking events lasting up to 200 ms, the machine may command a peak current of 42.0 A; this surge allows the rotor to generate a transient torque of 43.5 Nm for overcoming inertial loads. When motion stops and the shaft is held, the winding can continuously accept 10.1 A and produce a stall torque of 13.0 Nm without exceeding the same 100 K thermal limit. These overload and stall values provide the safety margin required for presses, pick-and-place heads, or vertical axes that demand short bursts of force while remaining thermally stable.