Dc Switch - KEHUA TECH SPI-B Series User Manual

2 Overview
Type Mark
Button
There are four buttons on the front panel of inverter, the button function is as shown in Table2-2.
Table2-2 Button function
Button
ESC
▲
▼
LCD touch screen
The inverter adopts 3.5 inch color touch screen, the display information includes：
 The running status and information of inverter.
 Service and operation information.
 Alarm and fault information.

2.2.2 DC Switch

DC switch connects the inverter with PV array. When the inverter works normally, the DC switch
must be in the "ON" position. When wiring, set the DC switch in the "OFF" position. When
maintenance, set the DC switch in the "OFF" position and wait for 30 minutes, then check whether
the DC busbar voltage inside the device is less than 10V or not by multimeter. If yes, the maintenance
can be done. The position of DC switch is as shown in Figure2-6.
10
Color Meaning
WIFI/GPRS
Green
indicator
Red Fault indicator
Function
Return/ quit
Page up/ number "+"/ select option
Page down/ number "-"/ select option
Enter/ confirm/ save/ select number bit
SPI-B Series (30K-60K) String PV Grid-tied Inverter
Status Illustration
ON WIFI/ GPRS has been connected
OFF WIFI/ GPRS has been disconnected
ON The inverter has protection action.
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