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Figure 4-18 Grounding terminal connection
4.4 Monitoring Device Installation
Sunways STT 4~25kW 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 COM1 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.
Figure 4-19 Monitoring device installation
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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
Note
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
Attention
the SIM card needs to be replaced, please make sure the card slot is completely
sealed by waterproof plug after replacing. Any damages caused by the
waterproof plug sealing problem will be invalid of warranty.
4.5 RS485/DRED Connection
4.5.1 Terminals definition
Inverter communication ports are located at the rear of the CT/DRED plate at the bottom and
include RS485 port (used for Meter or Datalogger connection), and DRED port, as shown in
Figure 4-20：
1.This port is available on anti-reverse, RS485 and DRED version inverter only.
Note
2.The Pin connector in inverter Port1 and Port2 may various from 2Pin to 3pin
according to the shipment version, subject to the version actually received.
Port 1
Port 2
1
1
2
2
3
3
1
2
3
Port 3
4
5
6
Figure 4-20
23
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