Huawei SUN2000-33KTL - Overview; Introduction to SUN2000; Model Description; Network Application

3
Installation Verification
9
1. The SUN2000 is installed correctly and securely.
Yes □ No □
2. All screws, especially the screws used for electrical connections, are
tightened.
Yes □ No □
3. All circuit breakers are switched to OFF.
Yes □ No □
4. Ground cables are connected correctly and securely, with no open circuit or
short-circuit.
Yes □ No □
5. AC output power cables are connected correctly and securely, with no open
circuit or short-circuit.
Yes □ No □
6. DC input power cables are connected correctly and securely, with no open
circuit or short-circuit.
Yes □ No □
7. The DC input voltage is not higher than 1000 V and meets the local voltage
range requirements.
Yes □ No □
8. RS485 communications cables are connected correctly and securely.
Yes □ No □
9. Idle DC input terminals are sealed.
Yes □ No □
10.Idle USB and RS485 ports and waterproof connectors are plugged with
waterproof plugs.
Yes □ No □
4
System Power-on
1. Switch on the AC circuit breaker between the inverter and the power grid.
2. Set the DC SWITCH at the bottom of the inverter to ON.
3. (Optional) Measure the temperatures at the joints between the DC terminals and the connectors
using a thermometer.
4. Observe the LED indicators to check the inverter operating status.
Indicator
Status
Meaning
PV connection
indicator
Steady green
At least one PV string is properly connected,
and the DC voltage exceeds 200 V.
Off
The inverter is disconnected from all PV strings.
Grid-tie indicator
Steady green
The inverter is grid-tied.
Off
The inverter is not grid-tied.
Communication
indicator
Blinking green (on for 0.5s
and off for 0.5s)
The inverter is communicating properly.
Off
The inverter has failed to communicate.