
UM0005_ASW 8-20K-LT-G2_EN_V03_1121 43
6.6 Earth fault alarm
This inverter complies with IEC 62109-2 clause 13.9 for earth
fault alarm monitoring. If an Earth Fault Alarm occurs, the red
color LED indicator will light up. At the same time, the error code
38 will be sent to the AISWEI Cloud. (This function is only
available in Australia and New Zealand)
7 Commissioning
7.1 Electrical check
Carry out the main electrical checks as follows:
①
Check the PE connection with a multimeter: check that the
inverter’s exposed metal surface has a grounding connection.
②
Check the DC voltage values: make sure that the DC voltage
of the strings does not exceed the permitted limits.
③
Check the polarity of the DC voltage: make sure the DC
voltage has the correct polarity.
Danger to life due to the presence of DC-Voltage
Touching the live conductors can lead to lethal electric
shocks.
• Only touch the insulation of the PV array cables.
• Do not touch parts of the sub-structure and frame of the
PV array which isn’t grouned.
• Wear personal protective equipment such as insulating
gloves.