Kollmorgen S406AM-CA SERVOSTAR 400 Servo Amplifier
A discontinued 6 A SERVOSTAR 400 master servo amplifier for 230–400 V-class installations; retain the exact communication and feedback configuration.
Overview
S406AM-CA belongs to Kollmorgen’s discontinued SERVOSTAR 400 digital servo-amplifier family. The S406 designation identifies the 6 A class, while the M hardware is the master-module version for the multi-axis system.
The family combines three-phase power conversion and high-performance servo control in one enclosure, with digital/analog I/O, feedback processing and fieldbus options. The -CA suffix must remain attached to the exact label because option coding and revision affect communication compatibility.
Specs
| Manufacturer | Kollmorgen |
|---|---|
| Model | S406AM-CA |
| Product Family | SERVOSTAR 400 / S400 |
| Product Role | Digital servo amplifier, master module |
| Rated Current Class | 6 A rms |
| Supply Class | 230–400 VAC, three-phase family |
| Control Interfaces | Digital and analog I/O supported by the S400 family |
| Feedback Capability | MultiFeedback architecture; exact installed feedback must be confirmed |
| Network Option | -CA option must be verified from the delivered label and project documentation |
| System Architecture | Master/axis modular servo system |
| Engineering Documents | S400 installation manual and CAN fieldbus manual |
| Lifecycle | Discontinued product family |
Features
- Integrates the power stage and digital servo controller in a compact modular platform.
- Supports multi-axis arrangements through a master-module architecture.
- Provides flexible feedback and fieldbus choices within the SERVOSTAR 400 family.
- Retains the exact suffix so an older communication option is not confused with a visually similar amplifier.
Applications
- Legacy packaging, converting and material-handling servo axes.
- Replacement of an installed SERVOSTAR 400 master amplifier.
- Maintenance and migration planning for multi-axis machines using S400 hardware.
Lifecycle
- Back up drive parameters, motor data and application settings before powering down.
- Record motor, feedback, expansion option, software version and every amplifier label.
- Identify which axes and field devices depend on the master module before exchange.
- Perform a controlled axis-by-axis acceptance test after repair or replacement.
FAQ
Which evidence is needed to approve an S406AM-CA replacement?
Send the complete amplifier label, hardware/firmware revision, motor nameplate, feedback type, option boards, network project and parameter archive.
Why can a similar SERVOSTAR 400 unit fail to replace S406AM-CA?
The current class may match while master/axis role, feedback electronics, fieldbus option or firmware differs; all of those can stop commissioning.
How should the -CA communication option on S406AM-CA be validated?
Use the installed label, fieldbus wiring and original Kollmorgen project rather than decoding the suffix from appearance or a nearby model.
What should be tested after fitting S406AM-CA?
Verify DC-bus readiness, feedback polarity, enable chain, I/O, network state, motor phasing, limits and a low-speed axis move before returning the machine to production.
When is migration preferable to repairing S406AM-CA?
Migration becomes attractive when several S400 axes are obsolete, parameter backups are incomplete or the existing fieldbus and motor feedback cannot be supported reliably.
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