HS2/AS2 Series
37
38
1
2
3
4
20 13
5
6
7
Figure 5.3
Assembling the AC/backup connector
Figure 5.4
Connecting the AC/backup
connector
5.2.1 Earth Fault Alarm
This inverter complies with IEC62109-2 clause 13.9 for earth fault alarm monitoring. If an Earth Fault Alarm
occurs, the ring light will be lit up in red and error code <31> will be displayed on LED panel 1 until the error
being solved and inverter functioning properly.
5.2.2 External AC Circuit Breaker and Residual Current Device
Please install a two pole circuit breaker to ensure the inverter is able to disconnect from grid safely. The
integrated leakage current detector of inverter is able to detect the real time external current leakage. When a
leakage current detected exceeds the limitation, the inverter will be disconnected from grid quickly.
The inverter does not require an external residual current device, as it has integrated with a RCMU. If local
regulations require the application of external residual current device, either type A or type B RCD is
BACK-UP
Load
Grid