Product Description:

The DSC 3.1-30-220V is a servo amplifier developed by Bosch Rexroth Indramat for the DSC Servo Amplifiers series. Designed to drive synchronous and asynchronous servo motors, it converts the 220 V supply into controlled current and voltage that coordinate motor torque and speed in automated machinery. Within an industrial control cabinet, the unit forms the interface between the motion controller and the motor windings, supplying regulated power while monitoring feedback to support precise positioning, velocity regulation, and dynamic braking.

This amplifier delivers a continuous motor phase current of 30 A, so it can provide steady output for sustained axis operation. For rapid accelerations, it supports a peak output power of 9 kW, providing short bursts of energy to overcome inertia without saturating the drive modules. During standby, the electronics draw only 180 VA, which helps reduce panel heat load. Internal discharge circuitry absorbs regenerated energy, and its bleeder path is rated for an average of 500 W, allowing frequent deceleration of moving loads without external braking resistors for most duty cycles. Drive current is sensed through an Imess test point that scales actual motor current to 250 mV/A, providing a direct analog value for measurement.

The bleeder stage can handle short transients up to 20 kW, so high-inertia axes can be stopped abruptly without overvoltage faults. Maximum internal dissipation is 230 W, so cabinet airflow or heat sink capacity must account for that load to keep component temperatures stable. The amplifier is specified for installations up to 1000 m above sea level, where reduced air density still supports adequate cooling. Reliable operation is maintained as long as ambient air remains below 55 °C, making the unit suitable for use in presses, pick-and-place systems, and material-handling lines.