APsystems ECU-B Installation/User Manual
6
2. Interface Explanation
Figure 3
2.7 LED1
LED1 will be ON (green light) when the ECU is powered ON.
2.8 LED2
LED2 will be ON (green light) when the ECU is exchanging data with the
EMA server.
When you haven’t entered microinverters UID into the ECU-B, or The ECU
cannot connect to the EMA server, LED2 is OFF.
LED1
LED2
