V3.80 No grid measurements on Ac In

DIY
, , ,
1

I found that v3.80~53 and 3.80~49 sometimes looses grid measurements.

Screenshot_20260920_173353_VRM
Screenshot_20260920_173353_VRM1080×1159 142 KB

Screenshot_20260920_174231_VRM
Screenshot_20260920_174231_VRM1080×1403 111 KB

Rolling back to 3.79 solved this issue (but now I miss the measurement of the heatpump consumption).

I use a external connected ct clamp to the current sense input of a multiplus 2 5000 gx.

2

Today I installed the 3.80 release and this bug immediately appears again.

Rolling back to 3.79 again.

Screenshot_20260922_125844_VRM
Screenshot_20260922_125844_VRM1078×1697 120 KB

Screenshot_20260922_130201_VRM
Screenshot_20260922_130201_VRM1080×1401 98.9 KB

In the details of the multiplus 2 5000 gx the ac in is still measured.

Screenshot_20260922_130231_VRM
Screenshot_20260922_130231_VRM1076×1426 118 KB

3

Why is this moved to DIY?

4

I have bumped this to the team.

5

Is there a specific meter in use or just internal to the multiplus?

6

External ct coil on the current sense input of the multiplus.

7

ok, so an external internal meter then :slight_smile:

8

You will need to leave remote support on, else it’s difficult to get someone to look when a gap opens. Thanks.

9

Okay, remote support is now enabled. Currently I’m on 3.79 to continue operation so for testing they need to upgrade first which is fine.

10

I don’t know why, but I upgraded to 3.80 again and now grid measurement is working.

So something did cause this issue but I don’t know what.

11

not a loose CT connection?

12

Nope, because on the console the ac in was still showing the ac in measurements.

The issue suddenly started to occur with 3.80 betas and in the release of 3.80. It suddenly disappeared again.