Instructional Booklet
Page
20
Effective: March 2021
Operation and Maintenance Manual,
Automatic Transfer Switch Controller, ATC-900
For more information visit: www.eaton.com
IB140012EN
5.3 User Programming
One may view setpoints or change setpoints through the menu
with the display. Remembering that the display is not a touch-
screen, the arrow push buttons are used to maneuver the screen.
Once a new setpoint selection has been made, move to the next
feature in need of a change. Once all setpoints on that particular
screen have been made, one must remember to select Save on the
bottom right row of the menu items and the new setpoints will be
stored. The full list of menus can be seen in section 3.4.1
5.4 Programmable Features/Setpoints
All ATC-900 programmable features and associated setpoint pos-
sibilities with any required explanations are presented in Table 7.
As mentioned earlier, when "Change Setpoints" is selected, the
display will show the following icons:
•
System Setups: default screen, 4 total;
•
Time Delays
•
Dropouts / Pickups
•
Engine Test / PE
•
Programmable I/O
The System Setpoints screen contains normal voltage/frequency,
preferred source, CT Ratio, communications, closed or open, and
several more. After the initial setting of these system setpoints,
they usually will not be changed.
The following example explains how to change a time delay.
Figure 10. Setting Time Delay.
Once the "Change Setpoints" is pressed, and the password is
entered, four areas of setpoints show up on the bottom of the
screen. Using the arrow keys, navigate to the "Time Delay" Icon
and hit “Enter”. Use the up/down arrow buttons to select a
desired setpoint and press the Enter key.(see Figure 10). The
selected setpoint should change from blue to red indicating that it
is ready to edit. With the up/down arrow buttons, change the
value and press Enter again after the desired value is reached.
When all changes are completed on that page, use the arrows to
select "Save" and then press "Enter" as shown on Figure 11.
NOTICE
CHANGING THE SYSTEM NOMINAL VOLTAGE OR FREQUENCY SET-
POINTS WILL AUTOMATICALLY CHANGE ALL THE PICKUP AND
DROPOUT SETTINGS TO NEW DEFAULT VALUES.
NOTICE
IF NO PUSHBUTTON ACTIVITY IS DETECTED FOR APPROXIMATELY
2 MINUTES WHILE IN THE PROGRAM MODE, THE DISPLAY WILL
REVERT BACK TO THE MAIN MENU. ANY UNSAVED CHANGES WILL
BE LOST.
