If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. ABB SDCS-CON-221 Exciter Reliable Field Excitation Control for ABB DC Drive Systems The ABB SDCS-CON-221 Exciter (often referenced as SDCS-CON2-21) is a dedicated control and excitation interface module used in ABB DC drive architectures. It is designed to manage a *Your Name: *Your Email: *Your Name: *Vdcode: Submit