Sungrow SG125HX, User Manual

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81
F Fa au ulltt C Co od de e
D De essc crriip pttiio on n
C Ch he ec ckk m me etth ho od d
078-081 PVx abnormal
1. Check if the xth PV string needs to be
connected.
If not, ignore the alarm; and
If so, check the connection status and make
sure it is connected reliably.
2. Check if the xth DC fuse is damaged. If so,
replace the fuse.
3.If the fault is not caused by the foregoing
reasons and still exists, contact SUNGROW.
*The code 078 to code 081 are
corresponding to PV 1 to PV 4 respectively.
087 AFCI Abnormal
1. The inverter can continue running.
2. Check whether the related cable
connection and terminal are abnormal,
check whether there are any foreign
materials or other environmental
abnormities, and take corresponding
corrective measures when necessary.
3. If the alarm occurs repeatedly, please
contact Sungrow Service.
088 Electric Arc Fault
1. Disconnect the DC Power supply, and
check whether any DC cable is damaged,
the connection terminal or fuse is loose or
there is a weak contact, or some
components are burned. If so, replace the
damaged cable, fasten the terminal or fuse,
and replace the burnt component.
2. After performing step 1, reconnect the
DC Power supply, and clear the electric Arc
fault via the LCD display or the APP, after
that the inverter will return to normal
operation.
3. If the fault is not caused by the foregoing
reasons and still exists, please contact
Sungrow Service.
User Manual 9 Troubleshooting and Maintenance