APsystems ECU-3Z User manual

1 2018/01/05 REV1.1 Quick Installation Guide
ECU-3Z Energy Communication Unit Quick
Installation Guide
Version: W2
This guide is for reference only and assumes you have access to, and have read the detailed
instructions in the ECU-3Z Installation/Users Manual (available at APsystems.com).
Step 1: Power-on ECU
Plug the AC power cord into the AC input on the ECU, and then plug the other end into a
dedicated wall outlet.
Step 2: Adjust the radiation angle
The radiation angle of ECU antenna is indicated as below:
Please make a appropiate angle for the ECU, which is parallel the antenna of the
Microinverter.
Step 3: Connect ECU to Internet
Option 1: LAN connection – use the LAN Cable to connect ECU to a Broadband Router.
Option 2: WiFi connection.
Keep pressing the button “Menu”until the screen shows "Turn on LWA". Then the LWA
function of ECU is opened.
Turn on the Wi-Fi function on PC. Connect to the ECU’s Wi-Fi named with
ECU-WIFI_xxxx(the“xxxx”refers to the last 4 numbers of the ECU ID), and connect. The
first connection has no password.
Open an internet browser and enter the IP address
172.30.1.1 into the URL search field. Click
“Administration” - “WLAN”, and turn on the WLAN
function, then connect to the router
via WiFi. For details, please refer to ECU-3Z user manual.
The ECU will automatically obtain the LAN IP address, such as: 192.168.1.101, and connect to
the internet. If the LAN IP address shows “192.168.131.228”, it means the ECU failed to get IP
address. Make sure the connection between ECU and Router is working well, then reboot ECU
and it will obtain IP address.
Antenna of
Microinverter
LAN IP address
Wireless IP address

2 2018/01/05 REV1.1 Quick Installation Guide
Step 4: Connect microinverters to ECU.
1) Using a computer that is connected to the internet, enter the LAN IP address or
wireless IP address from the ECU display into the Internet Browser. This should bring up
the screen below.
2) Click “Administration”, then click “ID management”, and enter the inverter IDs into
the ID Management box, or use the Scanning Gun to scan the inverter IDs and copy into
the ID Management box. Or using the EMA App, scan the inverter IDs by mobile phone.
3) Click “Update”, and the ID will be updated in the ECU.
Step 5: Check power of the microinverters
1) Click “Real Time Data” from the ECU Home, to view the real-time power of all
microinverters.
2) If a microinverter does not show up, please confirm if the inverter's ID is correctly input.
Step 6: Configure time-zone
·Click “Administration”, then “Date, Time, Time-zone”.
Product information is subject to change without notice.