Find quick and easy answers to frequently asked questions about the products and
solutions from Huawei FusionSolar. Whether inverters, battery storage, optimizers,
backup boxes or accessories - here you will find all the answers online.
Yes, the option ‘Charge from AC side’ can be activated in the parameter settings of the battery.
No, otherwise the MPPTs would interfere with each other in the search for the optimum power point.
Yes, the Backup Box B0/B1 is LVRT or FRT compatible.
You can find the corresponding certificates under the following links:
ske-solar.com/produkt/huawei-smartbackupbox-b0/
ske-solar.com/produkt/huawei-smart-backup-box-b1/
Yes, the FusionSolar portal can be accessed in your web browser via the following link:
eu5.fusionsolar.huawei.com
No, because the Smartlogger3000 is not compatible with 2-6KTL-L1 and 3-10KTL-M1 inverters.
However, the LUNA2000 is only compatible with 2-6KTL-L1 and 3-10KTL-M1 inverters.
Yes, the WLAN-FE dongle is included in the scope of delivery of a device from the SUN2000-3-10KTL-M1 series.
Yes, this function is called ‘Kiosk View’ and can be activated in FusionSolar-Web by the system owner.
Yes, the Huawei SmartDesign can be used for this.
Registration is free and can be accessed via the following link:
au.smartdesign.huawei.com/login
Yes, we can recommend the company www.smartfox.at for a compatible load management system.
Yes, the inverters have type II overvoltage protection installed on the DC and AC sides.
Can the Backup Box B1 be used to supply three-phase loads in the event of an emergency?
Please check the wiring of the Smart Power Sensors again.
It is important that the following points are observed:
-The Smart Power Sensor is always located behind all loads.
-The arrow direction of the current clamps must always point towards the loads or into the house.
-The phase assignment of the voltage tap, which is terminated at the top of the sensor, must match the current tap on the underside of the sensor.
-If there is another energy generator in the grid, it cannot communicate with the Smart Power Sensor. This means that incorrect values are transmitted to the FusionSolar.
Please check the phase affiliation (current transformer phase 1 with voltage tap phase 1, etc.).
If the phase assignment is not correct, an incorrect measured value will be determined due to the phase shift.
Further information can be found in the enclosed user manual.
Smartfox solutions, for example, can be used to connect a Huawei PV system to other systems.
There is either a problem with your string in the form of incorrectly connected PV connectors or the inverter requires an MBUS update.
The MBUS update can be installed in the FusionSolar commissioning app under Maintenance -> Update devices -> MBUS update.
If the optimisers are still not found, please contact SKE Support.
Please also check whether your inverter is optimiser-compatible.
The following inverters are compatible with the SUN2000-450W-P power optimisers:
SUN2000-2-6KTL-L1
SUN2000-3-10KTL-M1
SUN2000-12-20KTL-M2
SUN2000-30-40KTL-M3
Please ensure that the polarity of the strands is not reversed.
To determine the correct polarity reversal of optimised strands, a resistance or impedance measurement must be carried out.
To do this, the resistance must be measured in both directions. The measurement direction with the higher measured resistance is automatically the correct polarity reversal (+ pole of the measuring device = PV+ on the inverter).
Each 450W-P optimiser has an internal resistance of 1kOhm (+-10%).
As an example, 10kOhm (+-10%) is measured for a string with 10 optimisers.
Note:
Reversing the polarity of a PV string on the inverter means that the optimisers are not enabled. Alarms with ID 2011 and/or 2012 will most likely be displayed. Please correct the plug-in direction.
For SUN2000-2-6KTL-L1-Inverters:
GND: Pin 5
DI: Pin 8
For SUN2000-3-10KTL-M1-Inverters:
GND: Pin 16
DI: Pin 8
For 3-phase devices:
Pin 7 - RS485A +
Pin 9 - RS485B -
(except SUN2000-MAP0 and SUN5000-MAP0)
For 1-phase devices:
Pin 4 - RS485A +
Pin 3 - RS485B -
If a SmartLogger3000 is used, it must be connected to a COM port on the SmartLogger.
The Smartlogger 3000 must be connected to the following pins on the last cascaded inverter:
Pin 2: RS485A +
Pin 4: RS485B -
For a purely south-facing system, a DC/AC ratio of 1.15-1.25 can be assumed.
For an east-west orientated system, an AC/DC ratio of 1.35-1.50 can be assumed.
If possible, the LOG files of the inverter and documented measurements on the DC and AC side are required for successful warranty processing.
Please follow the instructions under the following link:
ske-solar.com/support/garantie/huawei-fusionsolar-online-garantieabwicklung/
Or contact SKE support at support@ske-solar.com.
The Huawei Smart Power Sensor DTSU666-H is designed for a maximum current of 250A.
For systems with higher currents, a compatible power sensor from a third-party provider can be used.
A list of compatible power sensors with the SmartLogger3000 can be found in the operating instructions for the logger.
The USB-Commissioning Stick is required for commissioning those devices that cannot be reached via an integrated WLAN hotspot and are not connected to a Smartlogger3000.
These inverters are, for example, the 60KTL-M0 or the 100KTL-M1.
If the max. short-circuit current is observed, exceeding the max. MPP current will NEITHER damage the inverter NOR invalidate the warranty.
If the max. MPP current is exceeded, the MPP current is automatically limited to its maximum.
However, this only happens under perfect conditions (inclination and alignment of the modules, as well as perfect solar irradiation) and can occur at most in spring.
A power loss of <1% can be expected here.
A DC arc fault can occur if other connectors are used instead of the supplied MC4-Stäubli or Amphenol-Weidmüller connectors. In addition, a RISO measurement should be carried out to determine a possible open terminal point.
The DC/AC ratio describes the degree of oversizing of a PV system.
Calculation: PV module output divided by the nominal inverter output
Fully optimised system: each PV module has a power optimizer
Partially optimised system: only individual PV modules have a power optimiser (e.g. shading, different orientation, etc.)
B0 = 1-phase (normal & backup operation)
B1 = 3-phase (normal operation) / 1-phase (backup operation)
The Smart Dongle is used to connect the PV system to the Internet and to integrate it into FusionSolar Monitoring.
The commissioning dongle is supplied as an accessory with the 60KTL-M0 100KTL-M1 inverters. It is used purely for local commissioning of the inverters. A SmartLogger is required to connect to FusionSolar Monitoring.