Njoy Aten PRO Series User Manual page 12

When the input
voltage is beyond the
acceptable range or
Battery power failure and
mode alarm is sounding
every 4 second, the
UPS will backup power
from battery.
When input voltage
is within acceptable
range but the UPS is
overloaded, the UPS
Bypass will enter bypass
mode mode or bypass mode
can set by from the
front front panel. The
alarm is sounding
every 10 second.
The UPS is powered off
and not supply power
Standby
through its output,
mode
but it can still charge
batteries.
22
5.7 Faults Reference Code
Fault code Fault event
Bus start fail
01
Bus over
02
Bus under
03
Bus unbalance
04
Inverter soft start fail
11
Inverter voltage high
12
Inverter voltage Low
13
Inverter output short
14
Battery voltage too high
27
Battery voltage too low
28
Over temperature
41
Overload
43
Icon
X
X
X
X
X
X
X
X
23