Eaton ATC-900 - Closed Transition and Timer Flowcharts

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Instructional Booklet
Effective: March 2021 Page 47
Operation and Maintenance Manual,
Automatic Transfer Switch Controller, ATC-900
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Note: There are options for closed transition such as Closed Transition and Closed Transition to Load Decay or Time Delay Neutral.
There is settable input (Closed Transition Inhibit) that if closed, will inhibit closed transition and switch to the open type.
There is an output contact (Waiting for Sync) that will close when Closed or In-Phase transition is synchronizing