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User Manual
10.2.2 Alarm Information on Battery
Alarm
One or More
Low
Battery
Level1
One or More
High
Battery
Level1
One or More
Low
Battery
Level2
Possible
causes
Battery
voltage/SOC
is
lower than the
"Vbat Lowlimit1".
Battery
voltage/SOC
is
higher than the
"Vbat Uplimit1".
Battery
voltage/SOC
is
lower than the
"Vbat Lowlimit2".
Measures
1.
Reduce
discharging power.
2. Check whether
the
protection
parameter is set to
an appropriate
1.
Reduce
charging power
2. Check whether
the
protection
parameter is set to
an
appropriate
value.
1.
Stop
discharging.
10 Troubleshooting
Note
In
the
on-grid
mode,
the
local
controller will limit
the
discharging
power of the PCS
until it drops to 0,
but the charging
power
is
not
affected.
In
the
off-grid
mode,
the
user-side
EMS
needs to control
external
load
power.
In
the
on-grid
mode,
the
local
controller will limit
the charging power
of the PCS until it
drops to 0, but the
discharging power
is not affected.
In
the
off-grid
mode,
the
user-side
EMS
needs to limit the
external power to
be fed into the
system.
In
the
on-grid
mode,
the
local
controller
will
control the PCS to
enter the standby
state (or control the
PCS
to
perform
37
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