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Alarm Possible cause Remark / Action
Input AC Under
Voltage
(Alarm #7)
Intermittent Alarm
The utility power
voltage is below the
minimum operating
range.
The uninterruptible
power supply
transfers to Battery
mode if supporting
load.
Input Under/Over
Frequency
(Alarm #8)
Intermittent Alarm
The utility power
frequency is out of
usable frequency
range.
The UPS transfers to
Battery mode if
supporting load.
Site Wiring Fault
(Alarm #194)
Intermittent Alarm
An alarm triggers
when the difference
between the ground
and neutral voltage
>15 V.
Have a qualified
electrician correct the
wiring problem. If the
uninterruptible power
supply is not wired
with a neutral wire,
change the
Site Fault to “disabled”
in the Settings menu.
Remote Emergency
Power Off
(Alarm #12)
Intermittent Alarm
The external contacts
in the rear of the
uninterruptible power
supply are configured
for remote emergency
power-off operation
and they are
activated.
The UPS deenergizes
the load and enters
Standby mode. For
more information, see
“EPO (E
mergency
P
ower Off)” in
Chapter 8.4 on pg. 57.
Output Overload
(Alarm #25)
Intermittent Alarm
The load level is at
or has exceeded the
configurable threshold
limit for a Overload
condition.
The UPS can support
the load indefinitely at
this load level.
The alarm clears when
the load drops below
5% of the set point.
Battery DC Over
Voltage
(Alarm #68)
Intermittent Alarm
The battery voltage
level has exceeded
the maximum
allowable limits.
The uninterruptible
power supply turns off
the charger until the
next power recycle.
Contact your service
representative.