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6000XP Not exiting bypass mode for hours

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Eric
Posts: 122
 Eric
(@eric)
Estimable Member
Joined: 4 months ago

@dannybeardsley
If you need help making these changes or would like for me to make them for you, let me know.

  • Discharge Current Limit(Adc): 140 (This should resolve the issue with the bypass and EPS overload)
  • Battery ECO Enable: Disabled
  • Charge Current Limit(Adc): 125 (The inverter can charge batteries up to 125A as long as you have more than 125Ah. If not then you would put the Ah you have if it's less than 125.)

    How many batteries do you have and which batteries are you using?

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(@dannybeardsley)
Joined: 1 month ago

Eminent Member
Posts: 20

@eric Thanks for responding, but it's not that helpful. I understand the settings (read the docs many times) and I've set the discharge current limit lower (50A) because I've got smaller batteries (and smaller wires) and I'm working on expanding them.

The problem is that the 6000XP is switching into bypass mode when load is significantly under the limit (and there is plenty of solar), and not switching out. Here's another example from today where you can see where there is plenty of capacity and yet it's stuck in bypass mode for 25min:

image

> Battery Eco Enable: Disable

I've read the docs and I definitely want this on. In this situation, the batteries are nearly full and not anywhere near EOD voltage. This mode (battery ECO) is poorly named, but seems to be doing its job. The inverter will switch to bypass mode when the batteries reach the EOD voltage and come out again when they get a few volts higher. That isn't the situation I'm dealing with here.

> Charge Current Limit(Adc): 125 

Again, I've set my limits lower (50A) and the inverter is respecting them just fine. However it still randomly goes into bypass mode when loads are low (13A) and there's tons of solar power available to handle the loads. 

> How many batteries do you have and which batteries are you using?

I'm using Tesla Model S battery modules and I have two of them in series (about 6-8kwh). I'm soon expanding to 12 of them which will give me about 36-50kwh of capacity.

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Eric
Posts: 122
 Eric
(@eric)
Estimable Member
Joined: 4 months ago

For your battery bank, are you using a BMS? 

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(@dannybeardsley)
Joined: 1 month ago

Eminent Member
Posts: 20

Posted by: @eric

For your battery bank, are you using a BMS? 

Not yet, but I'm working on creating a large battery box with 12 Tesla modules and will have a BMS then.

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Eric
 Eric
(@eric)
Joined: 4 months ago

Estimable Member
Posts: 122

@dannybeardsley I believe adding a BMS would help the inverter more accurately read the battery voltage. It does appear that the inverter is having difficulty detecting the correct voltage. This could be causing the inverter to switch to grid.

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