Huawei SUN2000-8KTL User Manual page 125

SUN2000 (8KTL-28KTL)
User Manual
Alarm ID Name
326 Electrical
Grounding
Fault
400 System
Fault
502 Internal
Communic
ation Fault
504 Version
Mismatch
505 Firmware
Upgrade
Failed
61440 Flash Fault
If a fault cannot be rectified by the measures listed in
Issue 10 (2017-07-30)
Severity Causes
Major  The neutral wire or PGND
cable is not connected to
the SUN2000.
 The isolation transformer is
not connected to the
SUN2000 at the output side
when the PV strings are
grounded.
Major An unrecoverable fault has
occurred on a circuit inside the
SUN2000.

Minor The communication circuit
of the SUN2000 is
interrupted.
 The communication circuit
is damaged.

The internal
communication address is
incorrectly set.
Minor The version of the software
loaded during a software
upgrade is incorrect.
Major The upgrade is incomplete.
Minor  There is insufficient space
on the flash drive.
 The flash drive has bad
blocks or is faulty.
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Measures
a. Check that the neutral wire and
PGND cable are properly
connected.
b. Check that an isolation
transformer is connected to the
SUN2000 at the output side when
the PV strings are grounded.
Flip the DC SWITCH on the
SUN2000 to OFF, wait 5 minutes,
and flip the DC SWITCH to ON.
Check whether the fault is rectified.
If the fault persists, contact Huawei
technical support.
a. If the fault is caused by a short
circuit of the communication
circuit inside the SUN2000, the
SUN2000 automatically reverts
to normal operating status after
the fault is rectified.
b. If the fault persists for a long
time, contact Huawei technical
support.
Check whether a recent software
upgrade has been performed. If so,
upgrade the software again to the
correct version.
Upgrade again.
a. Replace the monitoring board.
b. If the monitoring board is built
into the monitoring device,
replace the monitoring device.
Table 8-2, contact Huawei technical support.
8 Maintenance
118