PowerWalker VFI 6000T LCD - Manual (Page 28)

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Fig. 5-9 Warning
5.2.8 Fault
When the fault occurs, it illustrates that some fatal problems
happened, the UPS would directly cut off the output or transfer to
bypass, and keep alarming. The backlight of LCD would also turn to
red.
The detailed fault table is shown in chapter of 7.
Fig. 5-10 Fault
5.2.9 Other status
When the UPS is overload, the alarm will beep twice every second.
Some unnecessary loads should be get rid of one by one to
decrease the loads connected to the UPS less than 90% of its
nominal power capacity.