Huawei SUN2000L Series User Manual page 129

SUN2000L-(4.125KTL, 4.95KTL)-JP
User Manual
Alarm
Alarm ID
Name
2064 Device
Fault
2065 Upgrade
Failed
Monitorin
61440
g Unit
Faulty
2070 Active
Islanding
2071 Passive
Islanding
2072 Transient
AC
Overvolta
ge
Contact your dealer if all failure analysis procedures listed above are completed and the fault still exists.
Issue 03 (2018-04-11)
Alarm
Possible Cause
Severity
Major Cause ID = 1–12
An unrecoverable fault occurs
on a circuit inside the
SUN2000L.
Major Cause ID = 1–4
The upgrade does not end
normally.
Minor Cause ID = 1
The communication module is
faulty.
Major Cause ID = 1
When the power grid
experiences an AC power
outage, the SUN2000L detects
an island grid actively.
Major Cause ID = 1
When the power grid
experiences an AC power
outage, the SUN2000L detects
an island grid passively.
Major Cause ID = 1
The SUN2000L detects that
the phase voltage exceeds the
transient AC overvoltage
protection threshold.
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8 System Maintenance
Suggestion
Turn off the AC output switch and
DC input switch, and then turn them
on after 5 minutes. If the fault
persists, contact your dealer.
1. Perform an upgrade again.
2. If the upgrade fails several times,
contact your dealer.
3. Check that the DC power supply
is connected.
Contact your supplier to rectify the
fault.
Check that the grid connection
voltage of the SUN2000L is normal.
Check that the grid connection
voltage of the SUN2000L is normal.
1. Check whether the grid
connection voltage exceeds the
upper threshold. If yes, contact
the local power operator.
2. If you have confirmed that the
grid connection voltage exceeds
the upper threshold and obtained
the consent of the local power
operator, modify the overvoltage
protection threshold.
3. Check whether the peak grid
voltage exceeds the upper
threshold.
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