11
Relay Control Port
This port is available to provide a power source (230V/8A) to trigger external relay.
This function is only valid for Grid-tie with backup II mode.
11.1 Interface Configuration
There are four pins on this port. However, only Pin 1 and Pin 4 are worktable. Please
use supplied cables to connect Pin 1 and Pin 4 shown as below charts.
11.2 Function Description
Unit status
Condition
Output voltage
from relay
control port
Power Off
Power On
Unit is off and no output is powered.
When the unit is working at inverter
mode and grid is not available.
0V
230V
Condition 1:
Condition 2:
Unit status
Condition
Output voltage
from relay
control port
Power On
230V
Condition 3:
When the unit is not working at inverter
mode or grid is available.
0V
11.3 Application
Below chart is recommended circuit wiring.
Figure 11.1
Figure 11.2
Table 11.1
25
26
