Pylontech M1C-UL9540 User Manual page 87

F16 GFCI_Failure
F18 Tz_Ac_OverCurr_Fault
F20 Tz_Dc_OverCurr_Fault
F22 Tz_EmergStop_Fault
F23 Tz_GFCI_OC_Fault
F24 DC_Insulation_Fault
F25 AC_Active_Batt_Fault
F26 BusUnbalance_Fault
F29 Parallel_CANBus_Fault
AC_MainContactor_Faul
F30
t
F31 Soft_Start_Failed
F34 AC Overload Fault
F35 AC_NoUtility_Fault
F37 DCLLC_Soft_Over_Cur
F39 DCLLC_Over_Current
F40 Batt_Over_Current
F41 Parallel_System_Stop
F45 AC_UV_OverVolt_Fault
F46 Parallel_Aux_Fault
F47 AC_OverFreq_Fault
F48 AC_UnderFreq_Fault
Ground fault. Check PV+ or PV- wiring (which must be
ungrounded). Exposed PV conductors + rain can also cause. Check
that the neutral line and Ground are not double-bonded (common
with portable generators).
Overloaded the Load Output (reduce loads) or overloaded a
generator (see the inverter separate manual for details). Wiring
Short on the AC Side can also cause this error. Overloads can
result in F15, F18, F20, or F26.
It is typically caused by DC current from the battery that is too
large (ex: 4 Ton AC Unit) or too much PV current (3 or more
strings in parallel). Overloads can result in F15, F18, F20, or F26.
Initiated Emergency Stop; see sensor pinout table.
PV Ground fault. Check PV+ or PV- wiring (which must be
ungrounded, or damage can occur). Typically caused by
pinched PV wire grounding.
the PV+ or PV-. Grounded PV wire can cause F20, F23, or F26.
An exposed PV conductor combined with moisture is faulting (can
cause F16, F24, F26).
No battery connection to the Inverter and Activate Battery is
enabled. Disable Activate Battery in settings while no battery is
connected.
Too much load on one leg (L1 or L2) Vs. the other leg or DC loads on
the AC output when off-grid. Grounded PV +/- wire can cause F20,
F23, or F26.
Usually, a communication error for parallel systems, check cables,
and MODBUS addresses.
Contact Sol-Ark.com
The soft start of a large motor failed.
AC Overload or load shorted. Reduce heavy loads.
Grid connection lost
Software DC overcurrent
Hardware DC overcurrent
Batteries exceeded their current discharge limit.
If one system faults in parallel, this normal fault will register on the
other units as they disconnect from grid.
Grid under-voltage causes a disconnect. This will self-reset when the
grid stabilizes.
Cannot communicate with other parallel systems. Check Master = 1,
and Slaves are 2-9, ethernet cables are connected.
Grid over Frequency (common in power outages) causes a
disconnect. Will self-reset when grid stabilizes.
Grid under Frequency (common in power outages) causes a
disconnect. Will self-reset when grid stabilizes.
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