INFOSEC UPS SYSTEM – 15, rue du Moulin – 44880 Sautron – France – www.infosec-ups.com
hotline : +33 (0)2 40 76 15 82 – fax : +33(0)2 40 94 29 51 – hotline@infosec.fr – 07 19 AA 59 205 03
Locked in bypass after overload 3
times in 30 minutes
Converter current unbalanced
Cover of maintain switch is open
Utility extremely unbalanced
Battery voltage unbalanced
If the UPS system does not operate correctly, please solve the problem by using the table below.
No indication and alarm in the front
display panel even though the mains is
normal.
The AC input power is not
connected well.
Check if input cable firmly
connected to the mains.
The icon and the warning code
flash on LCD display and alarm
beeps every second.
EPO function is activated. At
this time, the EPO switch is in
“OFF” status or the jumper is
open.
Set the circuit in closed
position to disable the EPO
function.
The icon and flash on
LCD display and alarm beeps every
second.
The external or internal
battery is incorrectly
connected.
Check if all batteries are
connected well.
The icon and flash on
LCD display and alarm beeps twice
every second.
Remove excess loads from UPS
output.
UPS is overloaded. Devices
connected to the UPS are fed
directly by the electrical
network via the Bypass.
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.
Fault code is shown as 43. The icon
lights on LCD display and
alarm beeps continuously.
UPS is overload too long and
becomes fault. Then UPS shut
down automatically.
Remove excess loads from UPS
output and restart it.
Fault code is shown as 14, 15, 16, 17,
18 or 19, the icon lights on
LCD display, and alarm beeps
continuously.
The UPS shut down
automatically because short
circuit occurs on the UPS
output.
Check output wiring and if
connected devices are in short
circuit status.
Other fault codes are shown on LCD
display and alarm beeps continuously.
A UPS internal fault has
occurred.