Operation 91
LED status indicators
The inverter has a LED on the control unit and 2 LEDs on the control board. To see
the control board LEDs, remove the control unit.
LED on control unit
The status LED on the control unit shows the status of the inverter. Refer to User
interface on page 88 and LED status indications on page 91.
Control board LEDs
You can see the control board LEDs through the window in the first cover when the
control unit is removed. The control board has 1 bi-color LED (1) and 1 red warning
symbol LED (2) which is on when there is a danger of electric shock.
LED status indications
Control board LEDs Description
1. Status LED: red or green, OFF, ON or flashing.
2. Danger of electric shock: red, steady ON, if
inverter has diagnosed an active ground fault.
Status Status LED
Sleep OFF
Fault ON red
Active fault that requires user action.
Warning Flashing red (1 s ON, 2 s OFF)
Active warning. The warning does not prevent inverter power feed to the
grid, but the output power may be limited.
Stand-by Flashing green (1 s ON, 2 s OFF)
The inverter is in stand-by mode.
Limited operation Flashing green (3 s ON, 1 s OFF)
The inverter is in power feed mode with limited power output.
Normal operation ON green
The inverter is in power feed mode.
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