Product Description:

The S30301-NA-020 is a compact AC servo drive built by Kollmorgen for the S300 Servo Drives series. This unit conditions three-phase power and modulates current to matched servomotors, allowing precise speed, torque, and position control inside automated cells and material-handling stations where repeatable axis motion is required. By integrating power electronics and motion functions in a single frame, it simplifies cabinet wiring, reduces external hardware, and supports tightly coordinated motion sequences in compact control panels.

The drive accepts a three-phase supply in the range of 208 to 480 V, which is rectified to an internal bus that can rise to 900 VDC during regeneration as braking energy returns from the motor. Continuous operation is supported at 3 A RMS, while short duty phases can draw up to 7.5 A RMS for rapid acceleration. With an input capability of 2.5 kVA, the power section suits medium-inertia axes without oversizing the mains transformer. A residual output drop of 5 V and a dv/dt of 6.9 kV/µs at 480 V characterize the switching stage, and stable current control is maintained when the connected motor has at least 10.7 mH of inductance. The housing is 70 mm wide and 171 mm deep, and the drive produces 60 W of thermal loss at nominal load and 12 W when disabled. Up to 30 start cycles per hour are permitted without overheating.

Communication to the controller is handled through the CANopen onboard interface, and the bus can be clocked at 500 kBaud for deterministic status and parameter exchange over the network during synchronized motion tasks. The IGBT bridge normally pulses at an output stage frequency of 8 kHz; in energy-saving mode, the carrier is raised to 16 kHz with proportionally reduced phase current to lower acoustic noise during light-load operation. For emergency stops, the integrated STO circuit removes gate-drive power so torque falls to zero without relying on external contactors.