SUN2000 (8KTL-28KTL)
User Manual
Copyright © Huawei Technologies Co., Ltd.
For details, see Follow-up Procedure in 5.1 Connecting PGND Cables.
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8.2 Routine Maintenance
To ensure that the SUN2000 can operate properly for a long term, you are advised to perform
routine maintenance on it as described in this chapter.
Before cleaning the system, and maintaining the cable connections and grounding
reliability, power off the system (see 8.1 Powering Off the SUN2000) and ensure that the
DC SWITCH on the inverter is OFF.
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.
Table 8-1 Maintenance list
Check periodically that the heat sinks are free from
obstacles or dust.
Semiannually to
annually.
Check that the SUN2000 is not damaged or
deformed.
Check for normal sound emitted during operation
of the SUN2000.
Check that all SUN2000 parameter settings are
correctly set during operation.
Check that cables are securely connected.
Check that cables are intact and the parts in
contact with a metallic surface are not scratched.
Check that the idle RS485 and USB ports are
covered by waterproof caps.
Half a year after the
initial commissioning,
and semiannually to
annually afterwards.
Check that PGND cables are securely connected.
Half a year after the
initial commissioning,
and semiannually to
annually afterwards.
8.3 Troubleshooting
This section describes troubleshooting measures for common fault alarms in the SUN2000.
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