KEB COMBIVERT S4 is an AC frequency converter, suitable for the speed control of three-phase asynchronous motors. It can be connected to motors in multiple ways, supports incremental encoders, absolute value encoders, resolvers, switch input outputs and other signal interfaces, and has multiple protection functions to achieve multiple motion control functions
The KEB COMBIVERT S4 application manual describes the complete setup and use of the servo‑control unit. It covers safety instructions, interference suppression, ambient conditions, technical data, and wiring options for various encoder and resolver interfaces.
Key sections include installation and connection guidelines, detailed parameter programming, functional descriptions of drive modes, and an annex of new functions introduced in version 3.0. The document is intended for engineers and technicians responsible for commissioning and maintaining the system.
| Operating temperature | -10 °C … +45 °C |
|---|---|
| Protection class | IP20 |
| Rated output current (size D) | 2.7 A |
| Maximum motor line length (size D) | 50 m |
| Mains supply phases | 3 phases |
The unit can operate between -10 °C and +45 °C.
It is rated IP20.
The system uses a three‑phase mains supply.
Up to 50 m of motor cable is allowed.