S74802-SEF2-S3 Kollmorgen
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The S74802-SEF2-S3 is a servo drive produced by Kollmorgen and is part of the S700 Servo Drives series. It has a voltage rating of 208 to 480 volts, a rated input power of 35 kVA, and a rated current of 48 Arms. The unit measures 190 mm in width, 386 mm in height, and 244 mm in depth, with a weight of 13 kg and an IP20 enclosure rating.
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Product Description:
The S74802-SEF2-S3 servo drive is produced by Kollmorgen as part of the S700 Servo Drives series. It conditions three-phase power, controls motor current, and executes position loops so that synchronous servo motors follow motion commands accurately in automated machinery. Within an industrial cabinet, it occupies a single-axis slot and provides regulation, diagnostics, and safety functions for packaging, material-handling, and process lines. It is intended for responsive axis control where accurate current regulation and stable position control are required across changing loads and duty cycles.
The drive operates from a supply range of 208 to 480 V at standard 50/60 Hz line frequency and delivers a continuous output of 48 A rms. Its input stage is sized for 35 kVA, allowing headroom during rapid load changes. Internal power devices switch at 8 kHz, a carrier frequency that helps reduce motor acoustic noise while keeping switching losses manageable. During acceleration or shock loading, the power section can sustain peak current for 5 s before thermal limiting intervenes. Cooling air is controlled by the dedicated fan-controller expansion card, and the electronics use standard printed circuit boards selected for this option code. The housing measures 190 mm in width, 244 mm in depth, and 386 mm in height, and it has an IP20 enclosure for protected locations.
The drive complies with SIL CL3 / PLe for functional safety, and motion can be blocked through the integrated dual-channel STO circuit. Real-time control data are exchanged over the Slot 1 interface, which is factory configured as SERCOS II for networked axis synchronization. The unit has an installation weight of 13 kg, which helps keep cabinet handling straightforward during installation. The touch-safe enclosure layout supports use in protected control cabinets where direct contact with internal live parts must be avoided.
Frequently Asked Questions about S74802-SEF2-S3:
Q: What is the rated current capability of the S74802-SEF2-S3 servo drive?
A: The S74802-SEF2-S3 servo drive operates with a rated current of 48 Arms for continuous applications.
Q: What is the enclosure rating of the S74802-SEF2-S3 drive?
A: This model has an enclosure rating of IP20, providing limited protection against solid objects but no protection against water.
Q: What safety performance standard does the S74802-SEF2-S3 servo drive meet?
A: The S74802-SEF2-S3 offers safety performance up to SIL CL3 / PLe levels, supporting advanced functional safety requirements.
Q: Does the S74802-SEF2-S3 feature Safe Torque Off capability?
A: Dual channel Safe Torque Off (STO) is included for enhanced machine safety and compliance with safety regulations.
Q: What input voltage range does the S74802-SEF2-S3 support?
A: The servo drive accepts an input voltage range from 208 to 480 V, supporting various industrial power environments.
