Product Description:

The S7720F-EIF2-PA is a servo amplifier manufactured by Kollmorgen under the S700 Servo Drives series. It converts three-phase mains power into controlled motor currents, enabling accurate speed and torque regulation in packaging, printing, and material-handling equipment. Integrated safety and option slots make the unit the central actuation element in distributed motion systems. This layout supports coordinated axis control where stable current regulation and compact cabinet integration are important.

The unit has a continuous output capability of 72 A rms, representing the phase current that can be supplied without thermal derating. To sustain that level, the input side can draw up to 50 kVA from a three-phase mains network rated at 208–480 V, giving the drive flexibility for a wide range of industrial power systems. The internal IGBT bridge switches at 8 kHz, a frequency chosen to balance motor acoustic noise with switching losses and to keep current ripple within servo-grade limits. Functional safety is addressed by the built-in dual-channel STO, which removes torque-producing energy through redundant paths and supports stop category 0 requirements. For short acceleration bursts, the control section authorizes peak current for five seconds, and a dedicated fan-controller expansion card modulates airflow in response to that overload profile.

With a depth of 244 mm, a width of 190 mm, and a height of 386 mm measured without connectors, the enclosure fits standard 300 mm deep panels while leaving clearance for cable bends. The aluminum housing and forced-air path dissipate up to 1135 W at 480 V during full-load operation, while standby consumption falls to 24 W when the power stage is disabled. Emitted sound peaks at 68 dB(A), so additional acoustic shielding is rarely required in typical installations. A mass of 13 kg supports easier handling during mounting, and optional conformal coating helps protect the PCBs against moisture and dust.