SUN2000-12-15-17-20-25K-MB0 Support | User Guide| Huawei FusionSolar

Smart Energy
Controller

SUN2000-12/15/17/20/25K-MB0

Datasheet 8.6MB

User Manual 7.2MB

Quick Guide 2028KB

Installation Video

FAQ

Resetting Password
Rapid Shutdown
Locating Insulation Resistance Faults

Step 1Ensure that the SUN2000 connects to the AC and DC power supplies at the same time. Indicators and are steady green or blink at long intervals for more than 3 minutes.

Step 2 Perform the following operations within 4 minutes:  >

Step 3 Reset the password within 10 minutes. (If no operation is performed within 10 minutes, all inverter parameters remain unchanged.)  >

Step 4 Set router and management system parameters to implement remote management.  >
NOTE

- If optimizers are configured for some PV modules, the rapid shutdown function is not supported.

- You are advised to periodically check whether the rapid shutdown function is normal.

When all PV modules connected to the solar inverter are configured with optimizers, the PV system shuts down quickly and reduces the output voltage of the PV string to below 30 V within 30 seconds. Click to view >
If the ground resistance of a PV string connected to a solar inverter is too low, the solar inverter generates a Low Insulation Resistance alarm.

The possible causes are as follows:

Resetting Password

Step 1 Ensure that the SUN2000 connects to the AC and DC power supplies at the same time. Indicators and are steady green or blink at long intervals for more than 3 minutes.

Step 2 Perform the following operations within 4 minutes: Click to view >

Step 3 Reset the password within 10 minutes. (If no operation is performed within 10 minutes, all inverter parameters remain unchanged.) Click to view >

Step 4 Set router and management system parameters to implement remote management.
Rapid Shutdown

NOTE

- If optimizers are configured for some PV modules, the rapid shutdown function is not supported.

- You are advised to periodically check whether the rapid shutdown function is normal.

When all PV modules connected to the solar inverter are configured with optimizers, the PV system shuts down quickly and reduces the output voltage of the PV string to below 30 V within 30 seconds. Click to view >
Locating Insulation Resistance Faults

If the ground resistance of a PV string connected to a solar inverter is too low, the solar inverter generates a Low Insulation Resistance alarm.

The possible causes are as follows:

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