Product Description:

The S406AM-PB is a servo drive produced by Kollmorgen and part of the S400 Servo Drives series. It functions as a master module that translates field-level motion commands into controlled three-phase power for industrial servo motors. By executing the current and velocity loops internally, the drive supports precise positioning on packaging machines, palletizers, and material-handling axes that demand coordinated, high-speed motion. This arrangement lets a higher-level controller send motion data while the drive manages the motor response directly at the axis level.

Its housing carries an IP20 rating, so the unit must be mounted inside a control cabinet. The power section operates from 230 to 400 V and modulates the output stage at 8 kHz, a switching frequency that helps limit current ripple and audible noise. Overvoltage protection trips at 750 V to protect the DC bus capacitors. Under continuous duty, the drive delivers 6 A RMS, and it can supply up to 12 A RMS for short acceleration bursts. Supported load inductance ranges from 7.5 mH to 40 mH, which keeps the current regulators stable with compatible motor coils. Quiescent dissipation is 15 W, while the PROFIBUS expansion slot exchanges status and parameter data with a supervisory PLC without requiring an external gateway, which helps keep the control layout compact.

A current form factor of 1.01 shows that the output waveform is nearly sinusoidal, which helps limit additional motor heating. That waveform quality also helps the connected motor run more smoothly during speed changes. During full-load operation, the drive draws 12 kVA and converts 60 W of those losses into heat that must be removed by cabinet airflow. Physical dimensions are 100 mm wide, 240 mm deep, and 267 mm high, while the mass is only 3 kg, which keeps the unit light for cabinet mounting. The PROFIBUS interface also preserves cabinet space that would otherwise be used by a separate communication module.