Product Description:

The 66WKS-M310/45-0 analog servo amplifier is produced by Kollmorgen as part of the 60WKS Analog Servo Amplifiers series. It converts DC bus energy into precisely regulated phase current for brush or brushless servo motors used in industrial positioning, winding, and tension-control axes. By modulating its output stage according to command signals from a motion controller, the amplifier completes the current-loop portion of a drive system and supports fast electromechanical response.

At its continuous rating, the amplifier delivers 45 A, while transient demands can be met with a 100 A peak for acceleration or shock loads. Current quality is preserved by an output current form factor of 1.01, and only a 5 V voltage drop occurs at the rated current, which helps limit bus losses. The internal DC link operates at 310 VDC; when this rail is switched by the power stage running at 8.6 kHz, the commanded current reaches the motor within a control bandwidth of 1 kHz. Separate auxiliary rails supply ±15 VDC and ±20 mA for feedback devices such as resolvers, and the installed load requirement of 9.6 kVA places the module in the medium-power range for packaging and material-handling machines.

Protective functions engage if the link voltage rises to 410 VDC, preventing component stress during regenerative events. Kollmorgen specifies a minimum motor inductance of 0.8 mH so the 8.6 kHz carrier does not saturate the magnetic circuit. Under full load, the amplifier dissipates 330 W, while standby consumption remains at 20 W to reduce panel heat. The open-frame design carries an IP00 classification and therefore must be mounted inside a ventilated enclosure. Despite its power capability, the module weighs 2.8 kg, which helps keep cabinet layouts compact without requiring additional structural support.