SUN2000L-(4.125KTL, 4.95KTL)-JP
User Manual
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Cause ID = 1–12
An unrecoverable fault occurs
on a circuit inside the
SUN2000L.
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.
Cause ID = 1–4
The upgrade does not end
normally.
1. Perform an upgrade again.
2. If the upgrade fails several times,
contact your dealer.
3. Check that the DC power supply
is connected.
Cause ID = 1
The communication module is
faulty.
Contact your supplier to rectify the
fault.
Cause ID = 1
When the power grid
experiences an AC power
outage, the SUN2000L detects
an island grid actively.
Check that the grid connection
voltage of the SUN2000L is normal.
Cause ID = 1
When the power grid
experiences an AC power
outage, the SUN2000L detects
an island grid passively.
Check that the grid connection
voltage of the SUN2000L is normal.
Cause ID = 1
The SUN2000L detects that
the phase voltage exceeds the
transient AC overvoltage
protection threshold.
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.
Contact your dealer if all failure analysis procedures listed above are completed and the fault still exists.
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