Product Description:

The SERVOSTAR-670 is a digital servo drive manufactured by Kollmorgen within the S600 Servo Drives series. Designed to supply precise torque and velocity control to synchronous and induction motors, the unit interfaces between a plant's motion controller and its servo motor. In automated packaging lines, machining centers, or material-handling axes, the drive modulates three-phase power so that position loops remain tight and cycles remain repeatable. It is intended for 480 V AC systems where compact panel space and dynamic regeneration are important.

Electrically, the SERVOSTAR-670 delivers a continuous output of 70 Arms, while transient demands can be met with a peak capability of 140 Arms. During rated loading, the power stage dissipates 700 W as heat, and its internal circuitry switches at 8 kHz; this switching frequency reduces current ripple and audible motor noise. The unit returns braking energy to the DC bus at up to 6 kW continuously, limiting heating in high-inertia axes. An external 10 Ω brake resistor can be fitted when line-side dissipation is preferred. Standby losses are held to 40 W, and the residual voltage drop across the output transistors is only 5 V, both of which help improve overall system efficiency.

Short bursts of regenerative energy can reach 70 kW, so cabinet wiring must tolerate high surge currents, and the supply infrastructure should accommodate the drive's 50 kVA installed load rating. The housing carries an IP20 protection level suited to closed electrical enclosures, and airborne sound pressure is limited to 45 dB(A) for quieter operation on the factory floor. With a height of 345 mm, a width of 250 mm, and a depth of 325 mm including connectors, the drive occupies a modest footprint, and its 21 kg mass aids vibration damping once it is rigidly mounted.