11
5. Switching between Grid Operations and Back-up Operations
5-1. Switching from Grid Operation to Back-up Operation
• When power fails during a grid operation, the control panel display will change to
. The GRID Indicator will light
up orange and [E020] (Low grid voltage) will appear, indicating power failing. (Other error codes may be displayed
depending upon the system status.)
A blinking power display indicates that the operation mode needs to be switched from grid to back-up.
• Pressing the "ON/OFF (CANCEL)" for one second will stop the operation; and the control panel display will change
to
.
• Pressing the "ON/OFF (CANCEL)" for one second in a stopped state
will start the back-up operation; and the
operation and the control panel display will change to
.
In operation (Grid-connected)
Stopped (Back-up)
In operation (Back-up)
1 sec
1 sec
5-2. Switching from Back-up Operation to Grid Operation
• When the grid becomes normal during back-up operation, the control panel display will change to
. The GRID
Indicator indicating the grid state will light or blink in green and [PF] will disappear.
A blinking power display indicates that the operation mode needs to be switched from back-up to grid.
• Pressing the "ON/OFF (CANCEL)" for one second will stop the back-up operation; and the control panel display will
change to
.
• Pressing the "ON/OFF (CANCEL)" again for one second will start the grid operation; and the control panel display
will change to
.
In operation
（
Back-up
）
Stopped (Grid-connected)
In operation (Grid-connected)
1 sec
1 sec
