Kollmorgen S-Series Servo Drives S7240S-NANAPM

Technical Dossier

Product Details And Specifications

Kollmorgen S-Series Servo Drives Technical Notes

The Evolution of S-Series Architecture

The Kollmorgen S-Series traces its lineage to the Servostar and BDS/SDS drive families developed in the 1990s, which established the analog ±10 V command interface and resolver-based feedback as the standard for high-performance servo axes. Early S-Series units operated on isolated analog command buses and required external motion controllers for trajectory generation. Mid-generation revisions introduced digital parameter storage via non-volatile EEPROM, enabling repeatable tuning across drive replacements without manual potentiometer adjustment. Later variants added optional fieldbus interface cards (CANopen, PROFIBUS-DP) to support integration into distributed control architectures without replacing the core power stage. The S7240S-NANAPM designation encodes key configuration data: the 72 prefix indicates the 7.2 A continuous / 24 A peak current rating, the 40 suffix denotes the 400 V AC input class, S indicates single-axis topology, NA specifies the North American market configuration, NA the analog command variant, and PM the permanent magnet motor compatibility class. As the S-Series has entered its end-of-production phase, compatibility with legacy resolver and analog tachometer feedback devices remains the primary reason these drives are retained in service rather than migrated to current-generation AKD or AKD2G platforms.

S-Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked models within the Kollmorgen S-Series servo drive family. Each entry reflects a distinct current rating, voltage class, or interface configuration.

S7240S-NANAPM: 7.2 A cont. / 24 A pk, 400 V, analog cmd, PM motor, single-axis
S3240S-NANAPM: 3 A cont. / 9 A pk, 400 V, analog cmd, PM motor, single-axis
S6240S-NANAPM: 6 A cont. / 18 A pk, 400 V, analog cmd, PM motor, single-axis
S1240S-NANAPM: 1 A cont. / 3 A pk, 400 V, analog cmd, PM motor, single-axis
S2240S-NANAPM: 2 A cont. / 6 A pk, 400 V, analog cmd, PM motor, single-axis
S4240S-NANAPM: 4 A cont. / 12 A pk, 400 V, analog cmd, PM motor, single-axis
S7240S-NANAPB: 7.2 A cont. / 24 A pk, 400 V, analog cmd, PM motor, PROFIBUS-DP option
S7240S-NANACN: 7.2 A cont. / 24 A pk, 400 V, analog cmd, PM motor, CANopen option
S7220S-NANAPM: 7.2 A cont. / 24 A pk, 200 V, analog cmd, PM motor, single-axis
S3220S-NANAPM: 3 A cont. / 9 A pk, 200 V, analog cmd, PM motor, single-axis
S6220S-NANAPM: 6 A cont. / 18 A pk, 200 V, analog cmd, PM motor, single-axis
S1220S-NANAPM: 1 A cont. / 3 A pk, 200 V, analog cmd, PM motor, single-axis
S2220S-NANAPM: 2 A cont. / 6 A pk, 200 V, analog cmd, PM motor, single-axis
S4220S-NANAPM: 4 A cont. / 12 A pk, 200 V, analog cmd, PM motor, single-axis
S7240S-NANAPD: 7.2 A cont. / 24 A pk, 400 V, digital cmd interface, PM motor, single-axis
S14240S-NANAPM: 14 A cont. / 42 A pk, 400 V, analog cmd, PM motor, single-axis
S20240S-NANAPM: 20 A cont. / 60 A pk, 400 V, analog cmd, PM motor, single-axis