SUN2000L-(4.125KTL, 4.95KTL)-JP
User Manual
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Ensure that the PE cable is connected securely.
Figure 5-4 Connecting a ground cable
Recommendation: After connecting the ground cable, apply silica gel or paint on the ground terminal to
enhance its corrosion resistance.
----End
5.3 Connecting AC Output Power Cables
Prerequisites
A single-phase AC switch must be installed on the AC side of the SUN2000L to ensure that
the SUN2000L can be safely disconnected from the power grid.
Do not connect loads between the SUN2000L and the AC switch.
Context
The SUN2000L can detect the grounding. This function is used to detect whether the
SUN2000L is properly grounded before starting the SUN2000L, or to detect whether the PE
cable is disconnected when the SUN2000L is working. This function is available only under
limited conditions. To ensure the safe operation of the SUN2000L, properly ground the
SUN2000L in strict accordance with the connection requirements for PE cables. For certain
types of power grids, if an isolation transformer connects to the output side of the SUN2000L,
you need to set OFF due to abnormal grounding to Disable (see 7.4.5.3 Feature parameters
for details) after checking that the SUN2000L is properly grounded. Then the SUN2000L can
start normally. If you are not sure whether the SUN2000L connects to such a power grid,
confirm it with your dealer or Huawei technical support.
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