Product Description:

The S403A-SE is a servo drive manufactured by Kollmorgen for the S400 Servo Drives series. It conditions line power and delivers controlled current to a matched motor so automated axes hold speed and torque setpoints with tight accuracy. The housing is sized for dense cabinet layouts, and its 50 mm width, 230 mm height, and 240 mm depth allow the drive to sit beside other motion modules without exceeding standard enclosure depths. This is useful in multi-axis packaging, pick-and-place, and material-handling installations where available panel space is limited.

The control layer accepts high-resolution analog feedback, and its conversion stage resolves signals to 14-bit resolution for fine speed or torque trimming from a PLC or motion card. Internal logic is synchronized by an 8 kHz clock frequency, so current loops refresh quickly and motor ripple is minimized. The power section accepts a supply range of 230 to 400 V, matching common three-phase plant mains. Nominal output capability is 3 A rms, while transient demands up to 9 A rms are supported for rapid acceleration. Four digital inputs and two digital outputs provide hard-wired start, inhibit, or status lines, and a 24 VDC auxiliary supply powers those circuits without extra converters. Motor selection is supported by a minimum load inductance of 12 mH, which helps prevent current spikes when low-inductance coils are used.

The IP20 rated enclosure helps guard against accidental contact with live parts. For networked motion, the integrated SERCOS interface passes position commands and diagnostic data over a fiber ring, removing the need for analog velocity nodes. Quiescent dissipation is only 12 W, and total loss at rated current reaches 30 W, which helps reduce panel cooling demand. Drive-motor combinations with inductance up to 75 mH remain within the control bandwidth, so longer cable runs or higher-torque windings stay stable across the full duty cycle.