question

marcel42 avatar image
marcel42 asked

MPPT RS 450/200 Tracker shutdown VE.Direct

Hello,

Is it normal if i connect the VE.Direct Cable to the Cerbo GX Unit that Tracker 3 and 4 out of function, just tracker 1 is working.

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And the following is without VE.Direct connection. Why its work before i connect the VE.Direct cable to the CerboGX?


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My System:

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cerbo gxMPPT SmartSolarPylontechVE.Directmppt rs
1664973794964.png (35.2 KiB)
1664974011013.png (103.0 KiB)
1664974114763.png (38.9 KiB)
1664974153438.png (36.9 KiB)
1664974611319.png (92.4 KiB)
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3 Answers
nickdb avatar image
nickdb answered ·

Is the Cerbo seeing the pylon BMS?

Why aren't you connecting the RS via CAN to the cerbo?

The BMS should be connected to the Cerbo via CAN.

I would suggest you check all the data cabling.

Make sure the pylon can be seen and is selected as the battery monitor.

All the steps are here:

https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom


The mppt is under external control when connected so will do as it is told, if comms aren't right you will have issues. I suspect because you aren't CAN connected to the cerbo, it is missing all the comms and behaving incorrectly, I doubt the BMS data will be passed to the cerbo over VE direct.

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marcel42 avatar image
marcel42 answered ·


Thanks for the input. I can see the Pylontechs:

1664975637157.png

Wrong Picture above:
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The BMS is connected via CAN but it has older firmware.

But how can i connect the MPPT via CAN to the Cerbo? I try it and the Manual said use VE.Direct...


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1664975971446.png (51.5 KiB)
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nickdb avatar image nickdb ♦♦ commented ·

Where does it say that? The install manual for the RS450 says either, and in this case you want to use CAN. I would move the pylon to the Cerbo at least and make sure in system setup it is selected as the monitor and that DVCC has been automatically enabled.

screenshot-2022-10-05-at-152434.png

The pylon setup requires the BMS connected to the Cerbo via CAN bus.

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screenshot-2022-10-05-at-152434.png (64.2 KiB)
marcel42 avatar image marcel42 nickdb ♦♦ commented ·

1664977793593.png

its my configuration. 25A each --> 125A for 5 pylons

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nickdb avatar image nickdb ♦♦ marcel42 commented ·
I can’t keep repeating it. Please connect the bms directly to the cerbo via can, with the right termination. Then see how it all works.
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marcel42 avatar image
marcel42 answered ·

I did not work. I use a Cat7 Ethernet cable. The Cerbo gx did not find the mppt.


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lordfred avatar image lordfred commented ·

How did it end up ? Was it possible to connect to communication via ve.can?

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