Inverter beeping

Skegeej · Jul 17, 2022

I’m setting up my system in a shed in my yard. I have a 3000W inverter by xwjne and 2 100ah batteries connected in parallel. I connected everything except the panels and the controller serms to connect fine. However my inverter continues to beep and the fault light is in. Inverter is connected to battery with 1/0 cable via a fuse. Manual does tell me anything. Anyone gave any idea what is causing this?

THANKS IN ADVANCE.

sunshine_eggo · Jul 17, 2022

LFP? Using pre-charge resistor?

Skegeej · Jul 18, 2022

I’m sorry, I’m not sure what those are.

Skegeej · Jul 18, 2022

sunshine_eggo said:
LFP? Using pre-charge resistor?

I’m sorry, I’m not sure what those are.

DestroyFX · Jul 18, 2022

It's me or only the positive is connected in parallel.
From picture, it look like the inverter ground is connected on a different battery than the charge controller.
Are both batteries actually connected in parallel and charged +-equal?

sunshine_eggo · Jul 18, 2022

DestroyFX said:
It's me or only the positive is connected in parallel.
From picture, it look like the inverter ground is connected on a different battery than the charge controller.
Are both batteries actually connected in parallel and charged +-equal?

Good question.

@Skegeej

Is there a cable between these two terminals as indicated by the red line?

Skegeej · Jul 18, 2022

DestroyFX said:
It's me or only the positive is connected in parallel.
From picture, it look like the inverter ground is connected on a different battery than the charge controller.
Are both batteries actually connected in parallel and charged +-equal?

Skegeej · Jul 18, 2022

Here is the battery setup. The inverter and controller are both connected to the left battery. Should they be separated?

sunshine_eggo · Jul 18, 2022

Skegeej said:
Here is the battery setup. The inverter and controller are both connected to the left battery. Should they be separated?

Yes. both your inverter and MPPT should be connected to terminals on opposite batteries.

Are your batteries LiFePO4?

Skegeej · Jul 18, 2022

Okay, so I will change it and see if that helps.

sunshine_eggo · Jul 18, 2022

Skegeej said:
Okay, so I will change it and see if that helps.

It probably won't fix your problem, but it avoids other problems.

Are your batteries LiFePO4?

Supervstech · Jul 18, 2022

Is your solar connected to the charge controllers?

Skegeej · Jul 18, 2022

sunshine_eggo said:
Yes. both your inverter and MPPT should be connected to terminals on opposite batteries.

Are your batteries

Have deep cell MightyMax Batteries.

Just reconnected and now getting F04 error.

Supervstech · Jul 18, 2022

What voltage is your inverter expecting?

Skegeej · Jul 18, 2022

Supervstech said:
What voltage is your inverter expecting?

It can take up to 48v but it is currently registering 12v. Which is correct.

Skegeej · Jul 18, 2022

So now the F04 error is gone and now getting F05 which I think is a ground fault. However it does show me a place to connect the grounding wire given. I know the picture below isn’t correct but I’m going to try changing to neutral.

sunshine_eggo · Jul 18, 2022

Skegeej said:
It can take up to 48v but it is currently registering 12v. Which is correct.

This is completely wrong. Inverters only take ONE input voltage. That inverter model might be available in different input voltages, but it is expecting a single battery voltage.

12V OR
24V OR
48V

It will not accept more than one of the above. Period.

Please answer @Supervstech 's question.

Skegeej · Jul 18, 2022

sunshine_eggo said:
Good question.

@Skegeej

Is there a cable between these two terminals as indicated by the red line?

View attachment 103033

Yes it is. It’s on the bottom part of screen. You just can’t see it.

Skegeej · Jul 18, 2022

sunshine_eggo said:
This is completely wrong. Inverters only take ONE input voltage. That inverter model might be available in different input voltages, but it is expecting a single battery voltage.

12V OR
24V OR
48V

It will not accept more than one of the above. Period.

Please answer @Supervstech 's question.

It’s a 12v

Skegeej · Jul 18, 2022

Supervstech said:
What voltage is your inverter expecting?

It is expecting 12V.

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