Operating instructions

52
Alarm or Notice Possible cause Remark / Action
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.
Charger Failure
(Alarm #34)
Continuous Alarm
A
battery charger fault
has been detected.
The UPS turns off the
charger until the next
power recycle. Contact
your service
representative.
Output Short Circuit
(Alarm #58)
Intermittent Alarm
The uninterruptible
power supply has
detected abnormal
low impedance that
placed on its output
and considers it a short
circuit.
The uninterruptible
power supply operates as
a constant-current
source (3 x I
N
) and
shuts down after five
cycles (100ms).
Heat sink Over
Temperature
(Alarm #73)
Intermittent Alarm
The uninterruptible
power supply has
detected that one of its
heat sinks has exceeded
the maximum defined
operating temperature.
Possible fan failure
(see below).
Make sure that the fans
are spinning and that
the air intake vents on
the uninterruptible
power supply are not
blocked. After the
maximum temperature
is reached, the
uninterruptible power
supply shuts down.