Product Description:

The S7720F-EIF2-F2 is a three-phase AC servo drive produced by Kollmorgen as part of the S700 Servo Drives series. It serves as the power and control interface between a motion controller and an industrial motor, modulating line energy to deliver commanded torque, velocity, and position profiles. Designed for cabinet installation, the unit integrates safety, power conversion, and thermal management functions to simplify axis design in packaging, printing, and material-handling systems. Because it accepts a wide mains range and includes built-in regenerative handling, it supports both constant-torque and high-dynamic applications.

Electrically, the drive operates from a three-phase supply of 208 to 480 V and is protected upstream by an 80 A AC line fuse. Under continuous loading, it delivers 72 Arms of output current, while its control electronics and power stage can surge to 140 Arms for short intervals required during acceleration or shock loads. The silicon and bus design sustain a continuous apparent power of 50 kVA, allowing large motors to be driven without derating across the full mains range. These figures guide circuit breaker sizing, cable selection, and thermal planning so that peak and steady-state demands are both accommodated.

The mechanical dimensions are 190 mm wide, 285 mm deep, and 505 mm high, and the assembly weighs 13 kg. The drive has an IP20 rating and is intended for single-column cabinet mounting. A 24 V logic rail keeps the control stage active, and this demand is met through an auxiliary input of 24 VDC that maintains diagnostics during mains isolation. For fault containment, the drive offers a fuse interrupt capacity of 200 kA and endures feeder faults up to 42 kA RMS, figures that align with upstream breakers. Dual-channel STO is integrated, and a plug-in fan controller card commands cooling fans that start when ambient temperature reaches 65 °C. Standard hardware uses conformal-coated PCBs to resist humidity and airborne contaminants.