Huawei SUN2000L-2KTL Quick Manual page 4

4
Verifying the Installation
No. Acceptance Criteria
1 The SUN2000L is installed correctly and securely.
2 The WiFi antenna is installed correctly and securely.
3 Cables are routed properly as required by the customer.
4 Cable ties are secured evenly and no burr exists.
5 The ground cable is connected correctly and securely.
The DC switch and all the switches connecting to the SUN2000L
6
are OFF.
The AC output power cable, DC input power cable, battery
7
cable, and signal cable are connected correctly and securely.
8 Unused terminals and ports are locked by watertight caps.
The installation space is proper, and the installation environment
9
is clean and tidy, without foreign matter.
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No. Label Definition
RS485B, RS485 differential
1 485B1
signal–
RS485B, RS485 differential
3 485B2
signal–
5 EN– Enable signal–
7 N/A N/A
No. Label Definition
1 ALARM– Alarm signal–
RS485B, RS485 differential
3 485B3
signal– (reserved)
Negative of the 12 V power
5 12V–
supply (reserved, power ≤ 3 W)
7 N/A N/A
5
Before turning on the AC switch between the SUN2000L and the power grid, check that
the AC voltage on the power grid side of the AC switch is within the specified range.
1. Turn on the AC switch between the SUN2000L and the power grid.
2. Turn on the DC switch between the PV string and the SUN2000L if there is any.
3. Turn on the DC switch at the bottom of the SUN2000L.
4. If a battery connects to the battery terminals, turn on the power switch on the battery, and
then turn on the battery
5. Perform quick setting over the app by referring to the SUN2000L App Quick Guide.
6. (Optional) Measure the temperatures at the joints between the DC terminals and the
connectors using a point-test thermometer.
Under normal operation conditions of the SUN2000L, the temperature rise at DC
connectors should remain below 30°C at all time.
7. Observe the LEDs to check the SUN2000L operating status.
Type
Running
indication
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Communication
indication
Support
COM Port Pin Definitions
No.
2
4
6
8
ALARM Port Pin Definition
No. Label
2
4
6
8
Powering On the System
NOTICE
switch.
NOTE
Status (Blinking at Long
Intervals: On for 1s and then Off
for 1s; Blinking at Short
Intervals: On for 0.2s and then
Off for 0.2s)
LED1 LED2
Steady green Steady green
Blinking green Off
at long
intervals
Off Blinking green at
long intervals
Blinking green Blinking green at
at long long intervals
intervals
Off Off
Steady red Steady red
LED3
Blinking green at short intervals
Blinking green at long intervals
Off
Shenzhen 518129 People's Republic of China
4
Label Definition
RS485A, RS485 differential
485A1
signal+
RS485A, RS485 differential
485A2
signal+
EN+ Enable signal+
PE
Grounding the shield layer
Definition
ALARM+ Alarm signal+
RS485B, RS485 differential
485A3
signal– (reserved)
Positive of the 12 V power
12V+
supply (reserved, power ≤ 3 W)
PE Grounding the shield layer
Meaning
N/A
The SUN2000L is
exporting power to the power grid.
The DC is on and the AC is off.
The DC is off and the AC is on.
Both the DC and AC are on, and the
SUN2000L is not exporting power to
the power grid.
Both the DC and AC are off, or the
SUN2000L is in low power
consumption mode.
The SUN2000L is faulty.
N/A
The SUN2000L is in communication.
The SUN2000L has connected to the
mobile phone.
Others
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