High Charge Current Warning

Hello everyone,

Unfortunately, I keep getting a warning that the charging current of my Pytes e-box-48100R is too high for my three Multi RS Solar 48/6000 units.

What’s strange is that the maximum charging current specified by the BMS briefly drops from 100 A, which triggers the warning.

What could be causing this? Could it be the BMS?

Regards,

Christian

Hi, How many batteries do you have? can you share battery SN code with us? what is firmware version of your batteries?

Hello @PytesEnergy and thanks for your reply!

I have two modules.

SN: ES1003338P119835

SN: ES1003338P119836

Where can I find the firmware version?

Please send an email to Pytes ESS, we will share latest firmware with you to update your batteries.

Got the Files and was successfully upgrading both batteries.

Now I will observe the behavior and will reach out to you I it still happens.

Thanks!

Hello @PytesEnergy sadly I sill get some warings about high Chrage Currents.

What’m asking me, is this maybe an issue of the GX device and not an batterie BMS one?

Hi, Christian. Can you please show us your cable connections? both power cable and communication cable connections.
Also confirm if your communication cable (master battery to Cerbo GX) has correct pin configuration,
battery side:
CAN H : pin 4
CAN L : pin 5

Inverter side:
CAN H : pin 7
CAN L : pin 8
Connect Pins : 4–>7 & 5–>8

Hello @PytesEnergy

I build the CAN Cable by my self, and I testet the Pin as you described. Otherwise the Communication wouldn’t work, or?

On the 48V DC side I have 70mm2 cables from each Victron Multi RS to the victron lynx distributor with 200A Fues. And from there also 70mm2 to the Pytes R-Box also fueled with 200A

Please can you provide us with read only access to your VRM. check your email.

After evaluating from VRM, we feel this issue is from the inverter side. can you please confirm the issue with victron technical team ?

ok thanks for investigating @PytesEnergy

Do you have any contact person at Victron?

Unfortunately, the problem persists:

Who else could I contact here?

I used these settings as a guide

The inverter settings are overridden by the BMS, what they are set to is irrelevant when connected to a managed battery. If you are getting high-voltage warnings from the battery, only the battery can be the cause as it is sending the charge parameters and reporting the issue.
I suggest Pytes look a bit harder.

@PytesEnergy
could you please have another look?