Huawei optimizer rules

[JanGG]

Good morning, 

I think there is a bug in the Huawei rules for the new optimizers in the latest update. 
In PVSyst I'm not able to connect 2 strings of MERC-600W-PA0 optimizers on 1 MPPT while this is possible in the Huawei Smart design 2.0, so it should be possible. 
Please see the included image from Huawei Smart Design, and the fault from PVSyst. 

Kind Regards,

 

 

[Robin Vincent]

Inverter/optimizer combination rules are directly sent by Huawei to PVsyst.

Huawei's latest update indicates that this specific inverter can only connect to a total of two strings.

As it seems different from what the data sheet in your screenshot suggests, I'd recommend that you contact Huawei to report the issue, and ask them to update their PVsyst database.