SUN2000-(25KTL, 30KTL)-US
User Manual
8 Maintenance
Issue 03 (2017-04-01)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
89
Check
Item
Check Method
Maintenance
Interval
Groundin
g
reliability
Check that ground cables are securely connected.
Half a year after the
initial commissioning,
and semiannually to
annually afterwards.
Before wiping the heat sink clean, switch off the circuit breaker between the SUN2000 and
the power grid, set the
DC SWITCH
to
OFF
, and wait at least 5 minutes after the
SUN2000 is powered off.
If
DC SWITCH
is switch to
OFF
on the DC side, it is recommended that you lock the
DC switch to avoid switching it on by mistake.
8.2 Troubleshooting
This section describes the troubleshooting measures for common fault alarms in the
SUN2000.
The alarm severity is defined as follows:
Major: The SUN2000 enters the shutdown mode and stops feeding electricity to the
power grid due to a fault.
Minor: Some components are faulty but the SUN2000 can still feed electricity to the
power grid.
Warning: The SUN2000 output power decreases due to external factors.
Table 8-2
describes the common faults of the SUN2000 and troubleshooting measures.