Product Description:

The DSC 3.1-050-115V is a servo amplifier manufactured by Bosch Rexroth Indramat and assigned to the DSC Servo Amplifiers series. It converts the common DC bus energy of the machine into controlled phase currents for brushless motors. This allows coordinated positioning and speed regulation on automated assembly lines, gantries, and material-handling modules.

A stabilized DC link of 300 V DC ±15% feeds the internal power stage, establishing the voltage headroom for rapid torque changes. Under continuous duty, the unit delivers 50 A of current, matching midsize motor windings without external boosters. Control electronics and fans draw only 180 VA, so panel transformers remain compact. Regenerated energy is routed to an onboard bleeder that dissipates an average of 500 W, protecting the bus capacitors during deceleration cycles. The amplifier maintains full ratings up to an ambient temperature of 55 °C, supporting cabinet installations beside other heat-generating drives. Auxiliary rails supply ±15 V at 50 mA each and a 24 V logic line at 200 mA for sensors and interface circuitry.

During emergency stops, the bleeder accepts surges up to 20 kW, preventing overvoltage trips while the mechanical load coasts down. The power stage can momentarily deliver a mechanical output of 15 kW, giving extra acceleration for indexing tables. Current feedback relies on a shunt with a scale factor of 150 mV/A, allowing the motion controller to resolve precise torque commands. A steel chassis weighing 26 kg acts as a thermal sink and mounts directly to the backplane, while 360 W of external power loss must be vented by the cabinet airflow. The device operates without derating up to 1000 m altitude and can mirror nominal performance with peak output current identical to its continuous rating, simplifying drive selection for repetitive cycles.