103
Fault code
Fault name
Corrective measures
1600 - 1615,
1632 - 1655
PV Grounding
Fault
1. When the fault occurs, it is forbidden to directly
disconnect the DC switch and unplug PV termi-
nals when the direct current is greater than 0.5 A;
2. Wait until the direct current of the inverter falls
below 0.5 A, then disconnect the DC switch and
unplug the faulty strings;
3. Do not reinsert the faulty strings before the
grounding fault is cleared;
4. If the fault is not caused by the foregoing rea-
sons and still exists, contact Sungrow Customer
Service.
1616
System Hardware
Fault
1. It is prohibited to disconnect the DC switch
when the DC current is greater than 0.5 A when
the fault occurs.
2. Disconnect the DC switch only when the inver-
ter DC side current drops below 0.5 A.
3. It is prohibited to power up the inverter again.
Please contact Sungrow Customer Service.
9.2
Maintenance
9.2.1 Maintenance Notices
The DC switch can be secured with a lock in the OFF position or a certain angle beyond the
OFF position.(For countries “AU” and “NZ”)
Risk of inverter damage or personal injury due to incorrect service!
•
Be sure to use special insulation tools when perform high-voltage operations.
•
Before any service work, first disconnect the grid-side AC circuit breaker and
check the inverter status. If the inverter indicator is off, please wait until night to
disconnect the DC switch. If the inverter indicator is on, directly disconnect the
DC switch.
•
After the inverter is powered off for 10 minutes, measure the voltage and cur-
rent with professional instrument. Only when there is no voltage nor current
can operators who wear protective equipment operate and maintain the inverter
•
Even if the inverter is shut down, it may still be hot and cause burns. Wear pro-
tective gloves before operating the inverter after it cools down.
User Manual
