16
When the output power of PV arrays is low and less than 100W in consecutive 5 minutes, and no demand for SVG
scheduling in night, the system will access to shutdown mode.
When the system detects a failure, it will separate the inverter from the power grid under any circumstances. In this
state, LED fault indicator flashes giving alarm prompt. According to the LED fault alarm prompt, users can view fault
record via communication devices and handle it against the troubleshooting table. When the failure is automatically
cleared, the system will automatically detect whether meet conditions of grid-connected power generation or not in
20s, when conditions are complied, start generating power normally, otherwise maintain the fault state until the
system returns to normal.
Danger
In order to avoid the risk of electrical shock, ensure that the equipment is completely
powered off, and troubleshooting should be made only by qualified personnel.
6.3 Monitoring mode
Wi-Fi communication system
If you purchase optional wireless communication kits, the grid-connected PV inverter is equipped with Wi-Fi wireless
communication function without external RS485 cable. It is used with upper-supervision software or mobile APP to do
real-time monitoring of inverter datas.
Wireless monitoring is divided into two modes, mobile monitoring and computer monitoring. Users need to install PV
inverter monitoring software on computer or install mobile application program.
Wi-Fi module connection has AP mode and STA mode. AP mode is a wireless access point, by which mobile phone,
computer or other devices can be connected to Wi-Fi module. STA mode is a terminal. Wi-Fi module is connected to the
router, and users may connect to the router via mobile phone or computer, and view the real-time inverter datas via
monitoring software on the phone or computer. There are two ways to diagrammatize connection modes as shown below.
Mobile terminal monitoring
Access method 1:
Fig. 7 Mobile phone
– Router - Inverter
This access method is most common used. Users can either surf the internet by phone or monitor the inverter datas at
any time.
Access method 2:
Fig. 8 Mobile Phone - Inverter
T
his access method is used without wireless Router. Users’ phone is directly connected to the inverter via Wi-Fi to
view the inverter datas
.
