What does System Fault mean on my Huawei SUN2000-12KTL?
A System Fault on the Huawei Inverter indicates an unrecoverable fault has occurred on a circuit inside the inverter. Flip the DC SWITCH on the inverter to OFF, wait 5 minutes, and then flip the DC SWITCH to ON. Check if the fault is rectified.
What to do if Huawei SUN2000-12KTL Inverter Firmware Upgrade Failed?
A Firmware Upgrade Failed error on a Huawei Inverter means the upgrade process was incomplete. Upgrade again.
How to fix DC Over Voltage on Huawei SUN2000-12KTL Inverter?
If your Huawei Inverter SUN2000 is showing a DC Over Voltage alarm, it means the voltage from your PV modules is too high. To fix this, you need to reduce the number of PV modules connected in series for each PV string (1 and 2, 3 and 4, or 5 and 6) until the open-circuit voltage is at or below the inverter's maximum input voltage. Once you've adjusted the PV array configuration, the SUN2000 alarm should disappear.
Why does my Huawei Inverter show Abnormal Grid Voltage?
If your Huawei Inverter is showing an Abnormal Grid Voltage error, it could be due to a couple of reasons. If the alarm seems to be a one-time occurrence (Cause ID = 4), it might be due to a temporary issue with the power grid, and the SUN2000 should automatically return to normal operation once the grid stabilizes. However, if the grid-tied point voltage is consistently too high (Cause ID = 16/19/26), you should contact your local power operator to investigate the grid conditions.
General| Max. Efficiency | 98.6% |
|---|---|
| Rated AC Power Output | 12, 000 W |
| Dimensions (W x H x D) | 525 x 470 x 262 mm |
| Weight | 25 kg |
| Operating Temperature Range | -25°C to +60°C |
| Protection Rating | IP65 |
| Max. Input Voltage | 1100 V |
| Number of MPPT Trackers | 2 |
| Max. Input Current per MPPT | 22 A |
| Cooling Method | Natural Convection |
| Max. apparent AC power | 12000 VA |
| MPPT Voltage Range | 200 V to 1, 000 V |
| Rated AC Voltage | 220 V / 380 V, 230 V / 400 V, 240 V / 415 V |
| Warranty | 5 years |
Outlines the document's scope for SUN2000 installation, operation, and maintenance.
Specifies target readers as PV plant operators and qualified electrical personnel.
Defines symbols used in the manual for safety and operational clarity.
States that only qualified technicians should operate the SUN2000.
Warns against tampering with warning signs and nameplates on the unit.
Details precautions for safe installation, including clearance and disconnection.
Covers safety during electrical connections, including grounding and isolation.
Emphasizes safety during operation, especially regarding high voltage and hot surfaces.
Outlines safety measures before and during maintenance tasks.
Introduces the SUN2000, its functions, models, and applications.
Describes the SUN2000's role in grid-tied PV power systems.
Explains the different power grid modes supported by the SUN2000.
Details the physical appearance and external dimensions of the SUN2000.
Identifies and describes the ports on the bottom of the SUN2000.
Explains the meaning of symbols and labels on the SUN2000 and its nameplate.
Describes the information found on the SUN2000 nameplate.
Introduces the monitoring panel, including LCD, indicators, and buttons.
Explains the content and functionality of the LCD screen.
Describes the status indicated by the SUN2000's LED indicators.
Details the function of each button on the monitoring panel.
Explains the internal circuit diagrams and operational modes of the SUN2000.
Provides context and initial checks before starting the installation process.
Guides on verifying delivered components after unpacking.
Lists the necessary tools for installation and cable connections.
Specifies requirements for selecting an appropriate installation location.
Details the steps for mounting the SUN2000 using a support bracket.
Outlines the steps for securely mounting the SUN2000 onto a wall.
Explains how to connect the protection ground (PGND) cable for safety.
Guides on connecting the AC output power cables to the grid.
Details how to connect DC input power cables from PV strings.
Covers connecting USB and RS485 communication cables.
Lists checks required to ensure proper SUN2000 operation before powering up.
Describes the procedure for powering on the SUN2000.
Guides on setting essential parameters like language, time, and grid code.
Shows the structure of the monitoring menus accessible via the LCD.
Explains how to view system status and data on the monitoring panel.
Details how to access daily, monthly, yearly, and historical energy data.
Guides on accessing and managing active and historical alarm records.
Explains how to configure the system's date and time settings.
Details the process for changing the display language of the monitoring panel.
Describes how to adjust the LCD contrast for better visibility.
Guides on setting currency and the rate for revenue calculation.
Explains how to change user passwords for system security.
Covers configuring RS485 parameters like address, protocol, and baud rate.
Details how to configure protection parameters for the SUN2000.
Explains how to set various functional parameters like LVRT and power limit.
Guides on configuring isolation parameters for grounded PV strings.
Describes how to manually start and stop the SUN2000 via the panel.
Explains how to reset all configured parameters to their factory defaults.
Details how to enable USB functions for firmware upgrades and data export.
Guides on clearing energy yield data and historical alarms.
Explains how to clear active and historical alarm records.
Describes the procedure to reset the entire system, causing a shutdown and restart.
Guides on how to check the SUN2000's model, firmware version, and SN.
Provides safety procedures for powering down the SUN2000 for maintenance.
Outlines regular checks and cleaning for optimal SUN2000 performance.
Lists common faults, their causes, and measures to rectify them.
Details the steps for safely removing the SUN2000 from its installation.
Guides on how to pack the SUN2000 for transport or storage.
Provides guidance on the proper disposal of the SUN2000 unit.
Lists the maximum and European efficiency ratings for different models.
Details input voltage, current, power, and MPPT parameters.
Lists rated active power, apparent power, voltage, current, and THD.
Summarizes the protection mechanisms implemented in the SUN2000.
Covers display types and communication interfaces like RS485.
Provides physical dimensions, weight, operating environment, and terminal details.
To Next Page
