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8.12.13 Grounding Detection
Contact your distributor to obtain the advanced account and corresponding pass-
word before setting the earth detection parameters. If the distributor is unable to
provide the required information, contact SUNGROW.
Unauthorized personnel are not allowed to log in with this account. Otherwise,
SUNGROW shall not be held liable for any damages caused.
Tap More→Settings→Operation Parameters→Grounding Detection to enter the corre-
sponding screen.
figure 8-40 Grounding Detection
If the grounding detection is enabled, the DO relay will switch on automatically to signal the
external alarm if the value exceeds the grounding detection alarm value. The buzzer inside
the inverter will beep.
The PV insulation resistance fault (fault sub-code 039) will trigger the DO relay to signal the
external alarm.
8.12.14 Parallel Configuration
When two or more inverters are connected in parallel, the inverter needs to be set as the
master or slave.
Tap More→Settings→Power Regulation Parameters→Feed-in Limitation to enter the
corresponding screen.
Parameter Default value
Range
Master-slave operation
mode
ON ON / OFF
Master-slave setting
Master
Master / Slave 1 / Slave 2 / Slave 3
/ Slave 4
Total Number of Master
and Slaves
2 2 ~ 5
8 iSolarCloud App User Manual
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