Eaton RT 1250VA User Manual - page 29
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Appendix 2:The corresponding working status of indications
NO
Working status
Indication
Warning
Remarks
Nor
Bat
Bps
Fan
1
Line mode
Normal voltage
●
None
High/low voltage
protection, turn
to battery mode
●
●
★
Once every
four seconds
2
Battery mode
Normal voltage
●
●
★
Once every
four seconds
Battery Voltage
abnormal warning
●
★
★
Once per
second
3
Bypass mode
Main AC Normal
voltage in
bypass mode
●
★
Once every
two minutes
Eliminate after
starting the UPS
Main AC high
voltage warning
in bypass mode
★
Once every
four seconds
Main AC low
voltage warning
in bypass mode
★
Once every
four seconds
4
Battery disconnect warning
Bypass mode
●
★
Once every
four seconds
Affirm if the battery
switch is closed
Inverting mode
●
★
Once every
four seconds
Affirm if the battery
switch is closed
Power up or start
Six times
Affirm if the battery
is connected well
5
Output overload protection
Overload warning
in line mode,
●
★
Twice per
second
Remove the less
important loads
Overload in line
mode, protection
●
●
Long beeps
Remove the less
important loads
Overload warning
in battery mode
●
●
★
Twice per
second
Remove the less
important loads
Overload in
battery mode,
protection
●
●
●
Long beeps
Remove the less
important loads
6
Overload warning
in bypass mode
●
★
Once every 2
seconds
Remove the less
important loads
7
Fan fault (fan
icon flash)
▲
▲
▲
★
Once every 2
seconds
Check if the fan is
blocked by object.
8
Fault mode
●
Long beeps
If display fault code
and icon
lights,
contact for
maintenance when you
can’t deal with it by
yourself.