SERVOSTAR SP by Kollmorgen

The SERVOSTAR SP is a servo drive produced by Kollmorgen as part of the SP Servostar Servo Drives series. Designed to power and control brushless servomotors, it interfaces with external motion controllers through analog command channels and digital enable lines. In industrial automation cells, the drive converts DC bus energy into phase-controlled output, delivering bidirectional torque and speed regulation for pick-and-place modules, packaging axes, and coordinated gantries. Its electronics monitor bus voltage, temperature, and operating status to support reliable performance in electrically noisy environments. The drive can regulate motor behavior according to commands from the connected controller while reporting conditions through its diagnostic indicators.

It provides a pair of differential ±10 V command inputs supported by an auxiliary supply of ±15 Vdc, allowing high common-mode rejection while preserving signal integrity. Current feedback is evaluated on an RMS basis, and the internal power stage maintains a form factor of <=1.01, so the relationship between peak and average output current remains tightly controlled. Control logic is powered separately at 8 Vdc, isolating low-level electronics from the high-energy drive section. This control rail draws only 0.2 A, which reduces the heat load placed on cabinet power supplies. The separate logic supply also allows control circuits to remain electrically distinct from the motor power stage.

The protection network trips if the DC link exceeds 430 Vdc, protecting power semiconductors from transient mains surges. Four-quadrant regeneration is enabled, and the drive supports operation across 4 quadrants so it can return kinetic energy to the supply when decelerating loads. The unit can operate continuously at altitudes up to 3300 ft without derating and can tolerate sinusoidal vibration up to 0.5 g. A remote-enable circuit accepts 20 mA, allowing external safety interlocks to control the drive's enabled state. Six status LEDs provide immediate operating and fault information without requiring additional diagnostic equipment. Three selectable operating modes allow the drive to switch among torque, velocity, and position control according to the machine sequence.