S7480A-SEF2-F2 Kollmorgen
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The Kollmorgen S7480A-SEF2-F2 is part of the S700 Servo Drives series and is a coldplate-cooled servo drive with coated PCBs. It has a rated current of 48 Arms, a peak current of 96 Arms, and supports a voltage range from 208 to 480V. The drive features an SERCOS II fieldbus interface, a dual channel STO capability, and weighs 10.4 kg with an installed height of 505 mm.
Internal Product Review
The S7480A-SEF2-F2 is a Kollmorgen S700 servo drive with coldplate cooling and coated PCBs. SERCOS II communication with 16 MBaud support gives the drive fast, clean network integration for coordinated motion systems. A 48 Arms rated current with 96 Arms peak current makes this model a very capable choice for demanding servo applications.
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Product Description:
The S7480A-SEF2-F2 servo drive is produced by Kollmorgen as part of the S700 Servo Drives series. It provides closed-loop regulation for synchronous and induction motors in automated cells by exchanging real-time setpoints over a SERCOS II fieldbus. This arrangement lets the drive respond quickly to commanded speed and torque changes while maintaining accurate motor control during coordinated machine movement. The internal product type entry matches the S700 designation, which keeps identification consistent in drive software and related system records.
The drive operates on a supply range of 208...480 V. Under nominal load, it delivers 48 Arms, and a five-second overload window supports 96 Arms for rapid acceleration. Input demand reaches 35 kVA, and the power section dissipates 685 W as heat that is transferred to the machine frame through a cold plate cooler. This cooling method reduces the amount of heat released directly into the enclosure. The option package includes cold plate hardware and coated PCBs, and the conformal coating protects the control boards from humidity and conductive dust. Motor windings must present at least 0.88 mH of inductance at 480 V to keep switching ripple within tolerance, and the residual voltage drop toward the DC bus is 6 V during peak regeneration. A plug-in fan controller expansion card starts a cabinet blower when the ambient temperature reaches 65 °C. Network traffic moves over SERCOS II at up to 16 MBaud, and dual-channel Safe Torque Off terminals allow immediate energy removal without separate contactors. Noise emission is limited to 62 dB(A) at the rated operating point.
The housing is 190 mm wide and 505 mm high. It extends 285 mm in depth and weighs 10.4 kg, which helps support compact panel layouts and orderly multi-axis mounting without excessive load on the backplate. Forced ventilation does not need to run continuously because the fan engages only when the internal sensor calls for additional cooling. The drive uses a dual-channel STO circuit for torque removal, and redundant internal logic evaluates the safety input.
