Product Description:

The S403BA-SE is a servo drive produced by Kollmorgen as part of the S400 Servo Drives series. It operates as a current-controlled amplifier that converts motion commands from a machine controller into regulated motor phase currents for a single axis. In automated cells, the drive links the programmable logic controller to the motor windings, enabling precise velocity, torque, and position control for repeatable industrial processes. Its single-axis format makes it suitable for applications where one motor channel must be controlled independently within a larger motion system.

Internally, the drive accepts differential analog feedback with a resolution of 14-bit, giving 16,384 discrete levels for fine current regulation. Command and diagnostic data are exchanged through the SERCOS expansion interface, so the axis module can integrate on fiber-optic rings with other motion devices. The output stage switches at 8 kHz, a frequency that helps reduce motor ripple while remaining within typical IGBT operating limits. Continuous operation is rated at 3 A rms, while short-term demand can be covered by a peak capability of 9 A rms. The drive is intended for motors with load inductance between 12 mH and 75 mH, which supports stable current-loop behavior. An output current form factor of 1.01 indicates nearly sinusoidal phase current. The module does not include a power supply and requires a compatible DC bus for operation. Thermal dissipation is listed as 30 W during rated operation and 12 W at idle.

The housing has a depth of 240 mm, a height of 230 mm, and a width of 50 mm, which allows the axis module to fit into tightly packed control cabinets. With a mass of 1.7 kg, it is light enough for compact mounting arrangements without adding substantial panel load. The narrow enclosure helps conserve cabinet space where multiple drive modules are installed side by side. Published dimensions and heat-loss values provide the basic information needed for panel layout and thermal planning.