Appearance
Dimensions
Front View
(1) PV connection indicator |
(2) Grid connection indicator |
(3) Communication indicator |
(4) Alarm/Maintenance indicator |
(5) Host panel |
(6) Maintenance compartment |
Display Category |
Indicator Status |
Meaning |
|
|---|---|---|---|
PV indication |
LED1 |
LED4 |
- |
Steady green |
- |
At least one PV string is properly connected, and the DC input voltage of the corresponding MPPT circuit is at least 500 V. |
|
Blinking green at short intervals |
Red |
An environmental fault occurs at DC side. |
|
Off |
- |
The inverter disconnects from all PV strings, or the DC input voltage of all MPPT circuits is less than 500 V. |
|
Grid connection indication |
LED2 |
LED4 |
NA |
Steady green |
- |
The inverter is in grid-tied mode. |
|
Blinking green at short intervals |
Red |
An environmental fault occurs at AC side. |
|
Off |
- |
The inverter is not in grid-tied mode. |
|
Communications indication |
LED3 |
- |
|
Blinking green at short intervals |
The inverter receives data over RS485 or MBUS communication. |
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Off |
The inverter has not received data over RS485 or MBUS communication for 10 seconds. |
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Alarm/O&M indication |
LED4 |
- |
|
Steady red |
A major alarm is generated. If the PV connection indicator and grid connection indicator are both not blinking green fast, replace components or the solar inverter as instructed by the SUN2000 app. |
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Blinking red at short intervals |
A minor alarm is generated. |
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Blinking red at long intervals |
A warning alarm is generated. |
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Steady green |
Local maintenance succeeds. |
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Blinking green at long intervals |
In local maintenance or shuts down over a command. |
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Blinking green at short intervals |
Local maintenance fails. |
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Off |
No alarm is generated, and no local maintenance operations are performed. |
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- Local maintenance refers to operations performed after a universal serial bus (USB) flash drive, Bluetooth module, WLAN module, or USB data cable is inserted into the USB port of the inverter. For example, local maintenance includes configuration import and export using a USB flash drive, and connecting to the SUN2000 app over a Bluetooth module, WLAN module, or USB data cable.
- If the alarming and the local maintenance happen concurrently, the alarm/maintenance indicator shows the local maintenance state first. After the USB flash drive, Bluetooth module, WLAN module, or USB data cable is removed, the indicator shows the alarm state.
Bottom View
The DC switch of the current model can be manual or automatic.
(1) DC input terminals (controlled by DC SWITCH 1) |
(2) DC switch 1 (DC SWITCH 1) |
(3) DC input terminals (controlled by DC SWITCH 2) |
(4) DC switch 2 (DC SWITCH 2) |
(5) DC input terminals (controlled by DC SWITCH 3) |
(6) DC switch 3 (DC SWITCH 3) |
(7) Ventilation valve |
(8) USB port (USB) |
(9) Communications port (COM) |
(10) Hole for the AC output power cable |
(11) Hole for the tracking system power cable |
(1) DC input terminals (controlled by DC SWITCH 1) |
(2) DC switch 1 (DC SWITCH 1) |
(3) Reset button 1 (RESET 1) |
(4) DC input terminals (controlled by DC SWITCH 2) |
(5) DC switch 2 (DC SWITCH 2) |
(6) Reset button 2 (RESET 2) |
(7) DC input terminals (controlled by DC SWITCH 3) |
(8) DC switch 3 (DC SWITCH 3) |
(9) Reset button 3 (RESET 3) |
(10) Ventilation valve |
(11) USB port (USB) |
(12) Communications port (COM) |
(13) Hole for the AC output power cable |
(14) Hole for the tracking system power cable |
DC Switch Description
The DC switches automatically turn off when a fault occurs in the inverters (LED4 is steady red, and the three DC switches are OFF). In this case, contact your technical support. Do not turn on the DC switches by yourself.
Switch Component |
Description |
|
|---|---|---|
DC SWITCH |
ON |
The DC switch is ON and can automatically turn off for protection. |
The DC switch is ON but cannot automatically turn off for protection. |
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OFF |
The DC switch is OFF. |
|
RESET |
|
|
, and cannot be set to the