Advant Controller 31
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ABB Advant Controller 31 – Series 90 Series 40 and 50
Description General setup rules： An ABB AC 31 system always includes an AC 31 central unit. There are three types of central units: - The 40 series central unit, with a local inputs / outputs extensions interface - The 50 series central unit, with a local inputs / outputs extensions interface a...Read more