Product Description:

The SC103010Y4 is a brushless servo controller manufactured by Pacific Scientific within the SC100 Brushless Servo Controllers series. It manages commutation, current, and velocity loops for permanent-magnet servomotors used in automated machinery. By converting a three-phase AC supply into a regulated DC bus and pulse-width-modulated phase outputs, the unit delivers the precise torque and speed profiles required in pick-and-place axes, packaging lines, and material-handling systems.

On the power-conversion side, the controller accepts a three-phase mains input of 230 VAC (+10%, -15%) at 47 to 63 Hz, which is internally rectified to a nominal bus of 320 VDC for the inverter stage. Under continuous stall conditions it can supply 15 A to the motor, corresponding to a shaft power of 4.5 kW while dissipating only 105 W in the electronics thanks to an efficiency greater than 95%. This high ratio between electrical input and mechanical output permits compact panel layouts because less heat must be removed, and it supports constant-torque production during prolonged dwell periods. The continuous shunt regulator can absorb 30 W to clamp regenerated energy and protect the bus capacitors when decelerating inertial loads.

For short transients the inverter doubles its delivery, sourcing 30 A for up to five seconds and raising mechanical output to 9 kW so rapid indexing moves do not stall. These bursts are controlled by a switching frequency of 5 kHz, balancing current ripple with semiconductor losses. Full performance is available across an ambient range of 0 °C to 50 °C, allowing cabinet integration without auxiliary cooling, and current derating is required above that range. During deceleration peaks, an 8 kW shunt action for 300 ms channels excess energy into the braking resistor, and the storage temperature can drop to -55 °C without damaging the unit.