APsystems ECU-3 V4 Installation/User Manual
13
Basic Operation
The APsystems ECU has one two-line, 40-character LCD display
with alphanumeric. Set the mode using a single button.
NOTE:
ECU functions as a gateway and monitors the
microinverters that are connected to the PV modules.
Therefore, the communication between inverters and
ECU does not affect inverters' performance, even if ECU
drops inverters. The power production data collected by
ECU is for reference only, please check the power meter
for the real power production of the whole system.
Menu Structure
You can access the ECU’s menu by pressing and holding the
Menu Button on the side of the ECU for 2 seconds.
MENU Button
Figure 16
NOTE:
The Menu Button will only cycle through its menu
selections once the ECU has been successfully initialized.
The ECU has the following menu structure (displayed on LCD
screen):
Exit Menu
Signal Level
Status
Turn Off All
Figure 17
Press and hold the MENU Button, releasing the button to gain
access to the functionality of each menu item.
Exit Menu:
Return the ECU to the normal operating
screen (see Operating Interface Pg. 10).
Signal Level: The communication strength between
inverters and ECU measured from 1-5.
With more “=” being stronger signal
strength.
