HYD 5/6/8/10/15/20KTL-3PH USER MANUAL
Figure 5-1 System Electrical Topology (General)
a. Ensure that both the AC LOAD and AC GRID PE wires are
grounded at the same time, as shown in the diagram.
Otherwise the inverter may be abnormal in off-grid mode.
b. Check whether NeutralPointGrounding is enabled, if not, enable
it manually.Please refer to 7.4 for detailed information.
System 2: N and PE wires are connected together
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