PowerWalker VFI 10000TCP 3_1 - Manual (Page 26)

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5. Operation
5.1 Display Panel
The UPS has a four-button graphical LCD with dual color backlight.
Standard back-light is used to light up the display with white text and
a blue background. When the UPS has a critical alarm, the backlight
changes the text to dark amber and the background to red. Besides
the graphical LCD, the UPS has four colorized LEDs to provide you
more convenient info.
See Figure Below
Fig. 5-1 PowerWalker VFI 10000-20000TP 3/1/ PowerWalker VFI
10000TCP 3/1 UPS Control Panel