Siliken SE3.3Ni, User Manual

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Operation
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user’s manual inverter SE3.3Ni - SE3.8Ni - SE4.6Ni
3.4 LCD Display
The SE inverter has a 16 x 2 LCD to show the operating status, input/output data, and error messages. As long as the DC input voltage is
above the minimum MPP voltage, the LCD keeps display the information follow the process flow illustrated in the Figure 3.4.1.
The process flow could be the regular procedure, fault procedure, and idle procedure. The regular procedure is that the system goes from
power-on, system check, monitoring, and then grid feeding mode without any fault condition detected. The inverter is supposed to work as
the regular procedure and eventually feeds the power to the grid. During the system check and monitoring mode, if a fault condition that could
be cleared automatically is detected, then the system will go into the fault procedure that the system could return to regular procedure once
the fault condition goes away. One obvious example is that an “island” condition is detected due to the grid lost its power and later the fault
condition is cleared when the power comes back. If a fault that cannot be removed by its own occurs, then the system will enter the idle
procedure that needs a service staff to clean the fault and reset the system. These three procedures are illustrated in the Figure 3.4.1.
The messages for the fault procedure are as follows. It shows the fault mode, serial number of the inverter, software versions of the sequential
and current controllers and then the error messages which are listed in the Error Message Table on section 3.6.
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M o d F a l
S / N
e t u
X X X X X X X X X X X