Technical data

PVI 3000/4000/5000/5300 Installation and Operation Manual
41
5 Troubleshooting
Diagnosis and analysing data
Identifying and resolving faults
The PVI 3000-5300 is fitted with a self-diagnostic system, which can recognise a majority of possible faults and show these on
the display. This allows the operator to rapidly identify possible problems in the solar inverter or system. Please refer to the
LCD section (4) for a thorough explanation of fault codes, modes, etc. These indicate both internal errors and external faults.
Ground Fault:
If a significant ground fault occurs in the PV array or wiring, the GFDI fuse (located on the wiring/connector panel) may be
blown. If it is, determine and repair ground fault and replace fuse with Bussmann KLKD1 (1 Amp, 600VDC).
If the GFDI detects the ground fault break, the Ground Fault LED will light and the “fault” will be displayed.
Weak Sunlight Condition:
Operation in weak sunlight, (for example early in the morning, when overcast or when snow is covering most or all of the PV
array) can cause the inverter to go through a cycle of trying to start and restart several times. This can occur if the array
reached 235V (strike voltage) but there is nearly no power available, for example in the very early morning low light or cloudy
weather. If in doubt, wait for stronger sun.
Explanations of Error Messages
In the event of a fault, the inverter will stop feeding the AC voltage to the building/utility and display the error message on the
LCD. Qualified service personnel shall do the analysis, measurement, and debug the system if needed according to the error
message in order to resume normal operation. It is recommended to analyze the fault condition(s) by referring to the table
below and then remove the fault condition(s) in order to return the inverter to normal and continue to feed AC voltage to the
utility steadily. Please contact Solectria Renewables if the same error message is persistent.
CAUTION: Certain possible solutions may expose live electrical circuits, only qualified personnel should perform
these tasks. Please use caution when measuring voltage in the inverter.
Error Message Table
Error Message
Description Possible Solutions
GridNA
No AC voltage is detected. Verify AC voltage disconnect on
Verify AC circuit breaker is
on/operational
Verify and measure AC voltage present
in Inverter disconnect
Contact installing company or Solectria
Renewables
Drift Fac
Islanding is detected. Verify AC voltage present and correct in
Inverter disconnect
Contact installing company or Solectria
Renewables
VacH
The AC voltage of utility is above the upper
limit.
Verify setting for S201 is correct for the
grid voltage applied
Measure the AC voltage and compare to
the voltage on the inverter display
Contact Solectria Renewables for
assistance if the range needs to be
adjusted