Figure 4-19
Figure 4-20
4.4 Monitoring Device Installation
Sunways STT 6~25kW series three phase inverter supports WiFi, GPRS and RS485
communication, you can choose according to your specific needs.
Plug the WiFi or GPRS module into the COM port in the bottom of inverter by following the
direction the side with indicator is up (as shown in Figure 4-19). A slight “click” sound during
the installation represents that the assembly is in place.
22
23
4.5 System Layout of Units Without Integrated DC Switch
Local standards or codes may require that PV systems are fitted with an external DC switch on
the DC side. The DC switch must be able to safely disconnect the open-circuit voltage of the PV
array plus a safety reserve of 20%.Install a DC switch to each PV string to isolate the DC side of
the inverter. We recommend the following electrical connection:
1.The GPRS version module does not need to be configured.
2.The WiFi version module needs to be configured to the router for
the first installation, and if the router name or password changed,
you need to configure it again. For details, please refer to the [QUICK
INSTALLATION GUIDE] which attached in the accessory bag.
Don't touch the waterproof plug in the card slot unless replace the
SIM card. If the SIM card needs to be replaced, please make sure the
card slot iscompletely sealed by waterproof plug after replacing. Any
damages caused by the waterproof plug sealing problem will be invalid
of warranty.
Attention
Note
Figure 4-18
