Xtreme Power Conversion Corporation
P91c-1000 User’s Manual
Page 10
Uninterruptible Power Supply
1KL View:
Audible Alarm
Battery Mode
Sounding every 4 seconds
Low Battery
Sounding every second
Overload
Sounding twice every second
Fault
Continuously sounding
Bypass Mode
Sounding every 10 seconds
Troubleshooting
If the UPS system does not operate correctly, please solve the problem by using the table
below.
Symptom
Possible cause
Remedy
No indication and alarm even
though the mains is normal.
The AC input power is not
connected.
Ensure if input power cord is
firmly connected to the mains.
The AC input is connected to
the UPS output.
Plug AC input power cord to AC
input correctly.
The mains is normal but red LED
is flashing. The alarm is sounding
every second.
The internal battery connection
is wrong.
Please re-connect battery wires
with correct polarity.
The alarm is sounding twice every
second and red LED is flashing.
UPS is overloaded
Remove excess loads from UPS
output.
After repetitive overloads, the
UPS is locked in the Bypass
mode. Connected devices are
fed directly by the mains.
Remove excess loads from UPS
output first. Then, shut down
the UPS and restart it.
The mains is normal. But the unit is
on battery mode.
Battery is not fully charged.
Please charge battery at least
5 hours. If battery is still in low
battery level, please contact
local dealer.
Battery defect.
Replace the battery with the
same type of battery.
Red LED is on and alarm is sound
-
ing continuously.
UPS fault.
Please contact local dealer
directly.
UPS Status
Indicators
AC Mode
Green LED lighting.
Battery Mode
Yellow LED flashing.
Fault
Red LED lighting.
Off-mode charging.
Green LED flashing.
Three indicators to display UPS status:
