Eaton ATC-900 Operation And Maintenance Manual

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IB140012EN For more information visit: www.eaton.comInstructional BookletEffective: March 2021 Page 19Operation and Maintenance Manual,Automatic Transfer Switch Controller, ATC-900Figure 7d. ATC-900 Unprogrammed Switch Type Main Screen.Figure 7e shows the screen for setting the Switch Type. Onceselected, the up/down arrow keys cycle through Switch Typesand Transitions as shown in Table 6.Changing the Switch Type via USB uses the standard "Load Set-points" procedure, but as mentioned earlier the Switch Type ofthe controller must be Unprogrammed prior to loading setpointswith a new Style/Switch TypeFigure 7e. ATC-900 Style Setup Screen.5.2.1 Entering and Exiting the Program ModeUsing the left/right arrow keys, navigate to the desired screenicon and press the Enter key. The "Change Setpoints" screen willrequire a password to access (factory default is 0900).Press the Up arrow key to select the first programmable option.The up and down arrow keys will navigate through the list. Thecolor display is not a touch screen, so all changes will require theuse of the arrow keys and the enter key.A. Load MeteringThe Load Metering screen presents (Figure 8) the different mea-surements of the Load. Note that the DCT module is required todisplay Load current, Watts, VAR, VA, and power factor. Other-wise only voltage measurements will be shown. See Section 2 forthe DCT Module specifications.Figure 8. Load Metering.B. View SetpointsThis will allow the user to view the:• System Setups:• Time Delays;• Dropouts / Pickups;• Engine Test / PE; and• Programmable I/O.Figure 9. Time Delays.C. Change SetpointsThe programmable features are grouped in a logical flow for easeof programming or users can skip to a specific group for quickadjustments.This will allow the user to set all available setpoints shown in the"View Setpoints" screens. Setpoint examples will follow in Sec-tion 5.4 and Programmable I/O examples will follow in Section5.5. A password is required to change setpoints. The passwordcan be changed from the factory default of 0900 by selecting"Change Setpoints", navigating to the "Change Password"option, and pressing the Enter key. You will be prompted to enterthe old and new passwords. When finished, navigate to the"Save" icon and press the Enter key.D. Historical DataSee Section 7 for Historical and Event displays.E. System InfoSystem Information is an area where the switch configuration,GO, Serial, and version numbers can be viewed. It also providesmanual time/date setting if none of the Time Sync options areused.F. USB MenuSee Section 4.5 for USB operation.