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Ala
Ala
Alarm
rm
rm
Name
ID
Cau
se
ID
25
1
Battery
overvol
tage
26
1
Battery
underv
oltage
Alarm
Alarm
Trigger
Severit
Clear
Conditi
y
Mode
on
Critical
This
The
alarm
voltage
must
of each
be
battery
manu
exceeds
ally
15 V
cleare
(when
d.
the UPS
is
started).
Minor
This
The
alarm
voltage
is
of each
autom
battery
aticall
exceeds
y
14.7 V.
cleare
d after
the
UPS
transf
ers to
batter
y
mode.
Critical
This
The
alarm
voltage
must
of each
be
battery
manu
is lower
ally
than 5 V
cleare
(when
d.
the UPS
is
started).
Impact on the
System
This alarm is
generated because
there are more
batteries than
required. The
impact is as follows:
•
If battery packs
are connected
before the
startup, the UPS
fails to start.
•
If battery packs
are connected
during the
running of the
UPS, the UPS
transfers to
bypass mode.
The UPS
automatically
transfers to battery
mode. When the
battery
undervoltage alarm
is generated, the
UPS automatically
transfers to normal
mode and starts the
charger for
charging.
This alarm is
generated because
there are more
batteries than
required. The
impact is as follows:
•
If battery packs
are connected
before the
startup, the UPS
fails to start.
•
If battery packs
are connected
during the
running of the
UPS, the UPS
transfers to
bypass mode.
10
Repair Proposal
•
Possible cause:
The actual
number of
batteries does not
meet
requirements.
Measure: Check
that the actual
number of
batteries meets
requirements.
•
Possible cause:
The charger is
abnormal.
Measure: Check
that the charger
voltage is normal
immediately after
the batteries are
disconnected.
•
Possible cause:
The actual
number of
batteries does not
meet
requirements.
Measure: Check
that the actual
number of
batteries meets
requirements.
•
Possible cause:
The mains is
abnormal, and the
batteries are
overdischarged.
Measure: Connect
to the mains in
non-battery test
state.
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