Kollmorgen 403M-S S4036M-SE Servo Drive

Technical Dossier

Product Details And Specifications

Kollmorgen S4000 Series: Comprehensive Module Range and Technical Overview

The Kollmorgen S4000 series of servo drives occupies a well-established position in heavy industrial automation globally. Deployed extensively in chemical processing plants, oil refineries, nuclear facility auxiliary systems, and continuous-process manufacturing lines, the S4000 platform is recognized for its robust analog command interface, high-bandwidth current loop, and compatibility with Kollmorgen's brushless and brush-type servo motor families. The 403M-S S4036M-SE is a representative unit within this series, configured for multi-axis or standalone servo control with analog ±10 V command input and encoder feedback. Its installed base spans legacy DCS architectures where replacement or long-term maintenance sourcing is the primary operational concern.

The Evolution of S4000 Architecture

The Kollmorgen S4000 series was introduced as a successor to the earlier S200 and S300 analog servo drive platforms, consolidating higher power density and improved thermal management into a modular chassis format. Early S4000 units relied exclusively on analog command signals and resolver feedback, making them compatible with the control architectures prevalent in the 1990s and early 2000s DCS environments. Mid-generation revisions introduced optional encoder emulation outputs and expanded fault diagnostic registers accessible via front-panel LED codes. Late-series variants, including the SE-suffix models such as the S4036M-SE, incorporated enhanced EMC filtering and revised power stage topologies to meet updated CE and UL certification requirements. The series has since entered end-of-life status with Kollmorgen, with no direct drop-in successor sharing identical form factor and connector pinout. Migration paths typically involve the Kollmorgen AKD or S700 platforms, both of which require mechanical adaptation, wiring rework, and parameter re-commissioning. For facilities where downtime cost or re-engineering budget prohibits platform migration, sourcing verified refurbished S4000 units remains the standard maintenance strategy.

S4000 Full Catalog & Functionalities (SKU List)

The following SKUs represent the documented S4000 series module range. Each entry reflects a distinct power rating, feedback configuration, or form-factor variant within the platform.

403M-S S4036M-SE: 3.6 A continuous, multi-axis chassis mount, SE EMC filter variant
S4036M: 3.6 A continuous output, standard analog command, resolver feedback
S4072M: 7.2 A continuous, modular format, ±10 V analog input
S4072M-SE: 7.2 A continuous, enhanced EMC filtering, CE-compliant variant
S40100M: 10 A continuous, high-torque servo applications, modular chassis
S40100M-SE: 10 A continuous, SE-suffix EMC filter, UL/CE dual-listed
S40150M: 15 A continuous, heavy-duty spindle and feed axis applications
S40150M-SE: 15 A continuous, enhanced filter stage, industrial cabinet mount
S40200M: 20 A continuous, high-inertia load applications, analog command
S40200M-SE: 20 A continuous, SE EMC variant, resolver or encoder feedback
S40300M: 30 A continuous, large servo motor drive, modular bus format
S40300M-SE: 30 A continuous, SE-suffix, extended thermal derating range
S4036S: 3.6 A, single-axis standalone chassis, panel-mount format
S4072S: 7.2 A, single-axis standalone, compact footprint
S40100S: 10 A, single-axis standalone, DIN-rail compatible variant
S40150S: 15 A, single-axis standalone, high-current brush or brushless motor
S40200S: 20 A, single-axis standalone, extended I/O option
403M-S: Multi-axis base chassis, accepts S4000-series plug-in drive modules
S4000-PS: Dedicated DC bus power supply module for S4000 multi-axis chassis

Sourcing Hard-to-Find & Obsolete S4000 Parts

Kollmorgen has formally discontinued the S4000 series. OEM spare parts supply through authorized distribution channels is no longer available for the majority of SKUs in this range. DriveKNMS maintains a dedicated inventory program for end-of-life Kollmorgen servo drives, including the S4000 platform. Stock is sourced through controlled decommissioning of industrial facilities, tested refurbishment programs, and verified surplus channels. All units are inspected against original Kollmorgen electrical specifications prior to dispatch. For facilities operating S4000-based axes in continuous production, DriveKNMS recommends establishing a consignment stock arrangement to eliminate lead-time risk on critical spare units. Inquiries for specific power ratings, feedback configurations, or multi-axis chassis assemblies are handled directly by the technical sourcing team.

Quality Control for the S4000 Range

The S4000 series presents specific test challenges due to its analog command architecture, multi-axis backplane bus, and resolver interface circuitry. DriveKNMS applies a structured test protocol to all S4000 units prior to shipment. Each drive undergoes DC bus capacitor ESR measurement to assess electrolytic aging, followed by power stage IGBT or MOSFET switching verification under resistive load. The analog command input chain is calibrated against a reference signal generator to confirm gain linearity and offset within OEM tolerance. Resolver interface boards are tested with a reference resolver simulator to verify excitation output and feedback signal processing. Fault code registers are cycled through all documented diagnostic states to confirm front-panel LED and internal logic integrity. Multi-axis chassis units are tested with all module slots populated to verify backplane bus communication and shared DC bus voltage distribution. Units that do not pass all test stages are quarantined and not offered for sale.