Modern control for legacy converter systems

Thousands of wind turbines worldwide still operate with early-generation GE / Converteam ProWind converter controls. As these systems age, maintenance and spare-part sourcing become increasingly difficult, yet the converters themselves remain mechanically sound.

CSC|X is ConverterTec’s modern replacement controller designed specifically for these legacy ProWind systems (A10 control boards). Based on the proven CSC4 platform, installed in more than 14,000 converters globally, the CSC|X upgrade restores full functionality, enhances reliability, and extends the service life of existing turbines without redesigning the entire converter.

ConverterTec CSCX Controler

Maintenance teams gain a system that’s practical, accessible, and quick to handle in the field. Software installation and upgrades can be performed by trained technicians without factory intervention.

Prefabricated adapters simplify mounting, and a multi-language interface ensures intuitive setup and operation. Every CSC|X controller can also be linked to ConverterTec CTSAnalytics, enabling secure remote access, condition monitoring, and performance diagnostics, onshore or offshore.

The CSC|X platform offers extended monitoring functions and stable remote access to the converter’s control and analysis unit. A built-in trigger and event recorder supports in-depth fault analysis, helping technicians identify root causes faster and reduce downtime.
By using current-series components, the controller delivers higher stability and significantly lowers spare-part costs compared with obsolete boards. The result is a modern control system that keeps legacy converters operating reliably at a fraction of replacement cost.


Prefabricated adapters and user-guided software setup.


Field technicians can install updates quickly without factory support.


Optional integration with CTSAnalytics for real-time monitoring.


Extended monitoring, trigger & event recording, deeper analysis.


Uses current-series components for affordable maintenance.


Architecture derived from the CSC4 controller, deployed in 14 000+ systems worldwide.

Smarter troubleshooting and lower service costs

The CSC|X platform offers extended monitoring functions and stable remote access to the converter’s control and analysis unit. A built-in trigger and event recorder supports in-depth fault analysis, helping technicians identify root causes faster and reduce downtime.

By using current-series components, the controller delivers higher stability and significantly lowers spare-part costs compared with obsolete boards. The result is a modern control system that keeps legacy converters operating reliably at a fraction of replacement cost.

Every CSC|X controller benefits from ConverterTec’s decades of engineering experience in power electronics and control systems. The design combines state-of-the-art control technology with the robustness proven in years of field operation. For operators, this means one clear advantage – lifetime extension of existing converter systems with a controller that is both modern and dependable.

All converters equipped with a CSC|X can optionally connect to ConverterTec CTSAnalytics for ongoing monitoring and remote troubleshooting. Together with our SystemTool and DataVisualizer software, service teams gain a complete digital toolchain to analyze data, adjust parameters, and keep downtime to an absolute minimum.