Chapter 5 Human Machine Interface
45
Table 5-2 Definitions of the keys
Key Description
Definition
of
function
ESC(
)
Escape
key
Back/end/mute
ENTER
（
）
Enter
key
Confirm entering the
menu/confirm set point
PAGEUP
（ ）
Up
Page up in selection menu
PAGEDOWN
（ ）
Down
Page down in selection menu
ADD
（ ）
Left
+1 when setting parameters
DEC
（ ）
Right
-1 when setting parameters
5.2 Operation state
Table 5-1 indicates the definitions of LED, i.e. indicates
the information of the inverter’s operation state. It indicates
that the system is energized and under DSP control when
“POWER” lights up.
“RUN” will light up when the inverter detects that the grid
connection conditions meet the requirements and power is
fed to the grid. “RUN” will blink if the grid is in derated
running state during the period of feeding power to the grid.
“GRID” will light up when the grid is normal during the
operation of the inverter. Otherwise, “GRID” will blink until
the grid restores to normal.
“FAULT” will blink quickly as a fault (except grid
abnormality) occurs. “FAULT” will not light off until the fault is
eliminated. The light will blink slowly when an alarm occurs.
“FAULT” keeps lighting up when an internal fault occurs.
