Sermatec SMT-5K-TL-LV, User Manual, Page: 33 / 46

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3. Check if there are signs of cuts on the coat
contacted with the metal’s surface.
4. Check if the cylinders on the unused DC input
terminal and unused GPRS interface are tightened. commissioning.
Once half a year to
one year afterward.
Grounding
reliability Check if the grounding cable is grounded firmly.
5.2 LED Status
Table5-2
Display item Status Corresponding state description
SYSTEM
On: System is active and on-grid
Blink: System is active and off-grid
Off: System is standby
BACK-UP
On: AC-Load is active and normal
Blink: AC-Load is active and overload
Off: AC-Load is off
SOLAR
On: All PV is normal
Blink: One PV is abnormal
Off: All PV is abnormal
BATTERY
On: Battery is normal
Blink: Voltage of battery is low
Off: Battery is abnormal
GRID
On: Consuming electricity
Blink: Generating electricity
Off: Grid is abnormal
WIFI
On: Inverter is in Local Connection Mode
Fast Blink: Inverter is trying to connect to Router Wifi
Slow Blink: Inverter has successfully connected to
Router Wifi
Off: Wi-Fi is not active
FAULT
On: Fault has occurred
Off: No Fault