SunSynk SYNK-8K-SG04LP3 - Page 70

THREE PHASE HI 8~12kW | Installer Manual70
Error Code Description Solutions
F29 Parallel_Comm_Fault
1. When in parallel mode, check the parallel communication
cable connection and hybrid communication address set-
tings.
2. During the parallel system startup period, inverters will re-
port F29. When all inverters are in ON status, it will disappear
automatically;
3. If the fault exists, please contact us for help.
F34 AC_Overload_Fault
1. Check the backup load connected, make sure it is in al-
lowed power range;
2. If the fault still exists, please contact up for help.
F41 Parallel_system_Stop
1. Check the hybrid inverter working status. If there's 1pcs
hybrid inverter is in OFF status, the other hybrid inverters
may report F41 fault in parallel system.
2. If the fault exists, please contact us for help.
F42 Parallel_Version_Fault
Grid voltage fault
1.Check if the voltage is in the range of standard voltage in
specication this can be adjusted via the grid set up page.
2.Check if grid cables are correctly connected.
F46 Backup Battery Fault
1. Please check each battery status, such as voltage/SOC and
parameters etc., and make sure all the parameters are same.
2. If the fault still exists, please contact us for help.
F47 AC_OverFreq_Fault
Grid frequency out of range
1.Check if the frequency is in the range of specication
2.You may need to adjust the frequency on the grid set up
page.
F48 AC_UnderFreq_Fault
Grid frequency out of range
1. Check the frequency is in the range of specication or not.
2. Check whether AC cables are rmly and correctly connect-
ed.
3. Seek help from us, if can not go back to normal state.
F55 BAT1_VoltHigh_Fault
1. Check the battery 1 terminal voltage is high;
2. Restart the inverter 2 times and restore the factory set-
tings;
3. Seek help from us, if can not go back to normal state.
F56 BAT1_VoltLow_Fault
Battery low voltage
1. Check if the battery voltage is too low.
2. If the battery voltage is too low use the PV or grid to
charge the battery.
3. Check the battery BMS
Important: Especially with Lithium batteries, ensure that the
batteries Max. discharge current or power specication is the
same or higher than the inverter specication.