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 UA C389 AE02 HIEE300888R0002 DCS Excitation Board Introduction The ABB UA C389 AE02 / HIEE300888R0002 excitation board is an engineered module designed for excitation control within ABB’s Distributed Control System (DCS) architectures. It handles excitation regulation, feedback processin *Your Name: *Your Email: *Your Name: *Vdcode: Submit