SUN2000 (8KTL-28KTL)
User Manual
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
This topic describes how to perform daily maintenance and troubleshooting to ensure
long-term proper operation of the SUN2000.
8.1 Powering Off the SUN2000
When maintaining or replacing the SUN2000, comply with the safety precautions and
operation procedure specified in this section.
Context
After shutting down the SUN2000, the remaining electricity and heat may cause electrical
shocks and body burns. Therefore, operate the SUN2000 five minutes later after the
shutdown.
Procedure
To maintain the SUN2000, perform Step 1 to Step 3. To replace the SUN2000, perform
Step 1 to Step 7.
1. On the liquid crystal display (LCD), send a shutdown command.
For details, see 7.2.12 Enabling Manual Power-On and Power-Off.
You can also run a shutdown command on the EMS. For details, see the NetEco1000S
V100R001C00 User Manual.
2. Disconnect the circuit breaker between the SUN2000 and the power grid.
3. Set DC SWITCH to OFF.
4. Disconnect RS485 communications cables.
5. Disconnect DC input power cables.
For details, see Follow-up Operation in 5.3 Installing DC Input Power Cables.
6. Disconnect AC output power cables.
For details, see Follow-up Operation in 5.2 Connecting AC Output Power Cables.
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