11
en
Code Meaning Description
B02 Leakage current
abnormal
The insulation resistance to ground on
the input side decreases during inverter
operation.
B03 PV strings abnormal The PV strings are damaged.
B04 PV under voltage The PV voltage falls below the permitted
voltage range
B05 Weak irradiance The output of the PV modules is less than the
minimal operating power
B07 PV polarity reversed The poles of the PV strings are connected
with reversed polarity.
3�4 Connections in the lower part
1 2 3 4 5
6
Fig. 3: Connections in the lower part
Position Description
1 Vent valve
2 DC disconnector
3 PV string connectors
4 AC connector
5 Slot for the communication accessories
6 External protective earth (PE) connection
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