REFUone 3K-2T …7K-2T
41
Regular error state
Unrecoverable error state
(C)
Inverter states includes: wait, check, normal, fault and permanent
Wait:
Inverter is waiting to Check State at the end of reconnection time. In this state,
grid voltage value is between the max and min limits and so on; If not, Inverter
will go to Fault State or Permanent State.
Check:
Inverter is checking isolation resistor, relays, and other safety requirements. It
also does self-test to ensure inverter software and hardware are functional.
Inverter will go to Fault State or Permanent State if any error or fault occurs.
Normal:
Inverter enter to Normal State, it is feeding power to the grid; inverter will go
to Fault State or Permanent state if any error or fault occurs.
Fault:
Fault State: Inverter has encountered recoverable error. It should recover if the
errors disappear. If Fault State continues, please check the inverter according
error code.
Permanent:
Inverter has encountered unrecoverable error, we need maintainer debug this
kind of error according to error code.
When the control board and communication board connection fails, the LCD display interface
as shown in the figure below.
6.3
Main Interface
Press „ESC” button under standard interface to enter into main interface, including:
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