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Sun2000 inverter - Strang...

Sun2000 inverter - Strange measurements each early morning

Created: May 23, 2021 07:45:03Latest reply: May 26, 2021 17:17:28 238 6 0 0 0
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Dear forum members,

Huawei devices for PV installation : Sun2000-4 6KTL, Luna2000 battery and DDSU666-h

Communication protocol : Mobus via rs458


Almost each early morning, I receive strange measurements. Either very high values or very low values (depending on the metric). In some cases, those results are also visible on Fusion Solar portal.

Any idea what the reason can be?

At the same moment, I also receive an alarm:

26, Alarm 2, 9, Abnormal energy storage device, 2068, Minor



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BetterMing
Created May 23, 2021 09:06:55

Hello, dear.
You can check whether the communication connection between your energy storage device and inverter is correct. The details are as follows: https://support.huawei.com/hedex/hdx.do?docid=EDOC1100040443&lang=en
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Tang_li
Tang_li Created May 24, 2021 08:09:03 (0) (0)
Possible Causes
The energy storage device is faulty.
The energy storage device is disconnected.
The battery circuit breaker is OFF when it is running.
Handling Procedure
If the battery fault indicator is steady on or blinking, contact your battery dealer.
Check whether the energy storage enable/power/communications cables are correctly connected and whether the communication parameters are consistent with the RS485 configuration of the inverter.
Check whether the switch for the auxiliary  
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Popeye_Wang
Popeye_Wang Admin Created May 23, 2021 07:46:05

Hello,
Kindly wait a second, we are processing on your problem.
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3#
BetterMing
BetterMing Created May 23, 2021 09:06:55

Hello, dear.
You can check whether the communication connection between your energy storage device and inverter is correct. The details are as follows: https://support.huawei.com/hedex/hdx.do?docid=EDOC1100040443&lang=en
View more
  • x
  • convention：

Tang_li
Tang_li Created May 24, 2021 08:09:03 (0) (0)
Possible Causes
The energy storage device is faulty.
The energy storage device is disconnected.
The battery circuit breaker is OFF when it is running.
Handling Procedure
If the battery fault indicator is steady on or blinking, contact your battery dealer.
Check whether the energy storage enable/power/communications cables are correctly connected and whether the communication parameters are consistent with the RS485 configuration of the inverter.
Check whether the switch for the auxiliary  
(0) (0)
4#
user_4127325
user_4127325 Created May 26, 2021 17:17:28

@BetterMing thanks for the answer. The battery is working correctly.
Please also notice the strange behavior in the other measurements. And during the strange behavior, you'll notice that no measurements are available on FusionSolar portal. Do they know about strange measure and hide them?

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  • convention：

BetterMing
BetterMing Created May 29, 2021 02:19:54 (0) (0)
The Fusionsolar portal does not measure the values, it only accepts the values reported by the inverters. However, data errors may occur due to network fluctuations or loose communication cables. You can contact the PV center and have them re-collect the data. Get the correct image.  
BetterMing
BetterMing Created May 29, 2021 02:20:14 (0) (0)
Email: eu_inverter_support@huawei.com  
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