48 minutes ago, rowesley said:

I do not get it: (i)you have a brand new inverter and you have error 14, or (ii) the inverter worked ok for a while, then error 14 occur?  Those two situations may have two different approaches.

I have a brand new inverter that has no error with original fans but has an error with replacement fans (which consume less power).

2 hours ago, rowesley said:

I do not get it: (i)you have a brand new inverter and you have error 14, or (ii) the inverter worked ok for a while, then error 14 occur?  Those two situations may have two different approaches.

@rowesley It seems you don't understand the situation. @Funstar get this error after replacing the OEM noisy fans by new FANS (Noctua NF-A8). As mentionned in my last reply, the error 14 is the RPM value mistake on the FAN measured by the inverter. 

 

 

7 hours ago, fhocorp said:

@rowesley It seems you don't understand the situation. @Funstar get this error after replacing the OEM noisy fans by new FANS (Noctua NF-A8). As mentionned in my last reply, the error 14 is the RPM value mistake on the FAN measured by the inverter. 

 

 

I do understand now. 😉 So which is your new consumption overnight with newer fans with error 14?

On 2024/09/10 at 10:46 PM, fhocorp said:

So i can have two independent battery (no direct connection between them) and connect only the neutral together on the AC output ?

Yes, and I forgot to mention this important point: AS LONG AS BOTH INVERTERS ARE IN SINGLE (SNG) OUTPUT MODE, and also you DON'T CONNECT THE AC OUTPUT LIVES TOGETHER. Then they are just two independent systems that happen to have their neutrals connected together. The batteries are isolated, you you can connect their negatives to each other if you want. However, if in the future you want to connect three inverters in a three-phase configuration, then you need to put the three outputs into 3P1, 3P2, and 3P3 output modes, you will need the paralleling boards, and the batteries will then have to be all commoned. You would need three-phase utility in that case, or if only single phase, connect to only one of the three inverters' AC-in terminals. Oops, I don't think that would be good, because if one of the inverters gets overloaded, or the battery becomes weak, it would attempt to go into bypass mode, and the three-phase loads would get only a single phase. This could burn up motor windings, I would think, as thee will be no rotating magnetic field, so the motor won't turn, so there will be no back-EMF, and the motor will be perpetually in start-up surge.

I'm not experienced with 3-phase configuration of these inverters, so please someone correct me if I'm wrong.

My apologies if I've inadvertently responded to an old post. My laptop's track pad has been going crazy today.

Edited December 3, 20241 yr by Coulomb

Sigh. "Over the page" forum bug bit.

Edited December 3, 20241 yr by Coulomb

16 hours ago, Coulomb said:

Yes, and I forgot to mention this important point: AS LONG AS BOTH INVERTERS ARE IN SINGLE (SNG) OUTPUT MODE, and also you DON'T CONNECT THE AC OUTPUT LIVES TOGETHER. Then they are just two independent systems that happen to have their neutrals connected together. The batteries are isolated, you you can connect their negatives to each other if you want. However, if in the future you want to connect three inverters in a three-phase configuration, then you need to put the three outputs into 3P1, 3P2, and 3P3 output modes, you will need the paralleling boards, and the batteries will then have to be all commoned. You would need three-phase utility in that case, or if only single phase, connect to only one of the three inverters' AC-in terminals. Oops, I don't think that would be good, because if one of the inverters gets overloaded, or the battery becomes weak, it would attempt to go into bypass mode, and the three-phase loads would get only a single phase. This could burn up motor windings, I would think, as thee will be no rotating magnetic field, so the motor won't turn, so there will be no back-EMF, and the motor will be perpetually in start-up surge.

I'm not experienced with 3-phase configuration of these inverters, so please someone correct me if I'm wrong.

Thanks for your return on the case 👍

 

16 hours ago, Coulomb said:

My apologies if I've inadvertently responded to an old post. My laptop's track pad has been going crazy today.

No problems sir 😇 

 

16 hours ago, Coulomb said:

Sigh. "Over the page" forum bug bit.

🤣🤣🤣🤣🤣🤣

On 2024/12/02 at 4:23 PM, rowesley said:

I do understand now. 😉 So which is your new consumption overnight with newer fans with error 14?

In my case, i was consuming 15w instead of 20W with the new fans inside. Also a quieter working after the upgrade.

10 hours ago, fhocorp said:

In my case, i was consuming 15w instead of 20W with the new fans inside. Also a quieter working after the upgrade.

OK, for 5W in minus the quiet is more interesting. However, if you want to get off the error 14, you have to trick the inverter motherboard. This is easy: use a CMOS type 555 as square wave oscillator and set the output frequency above the limit of displaying the error 14. Connect the oscillator output instead of fan RPM output. This will not turn off the inverter anymore if fan becomes defective.

3 hours ago, rowesley said:

OK, for 5W in minus the quiet is more interesting. However, if you want to get off the error 14, you have to trick the inverter motherboard. This is easy: use a CMOS type 555 as square wave oscillator and set the output frequency above the limit of displaying the error 14. Connect the oscillator output instead of fan RPM output. This will not turn off the inverter anymore if fan becomes defective.

@Coulomb@rowesley Thanks for your advice

@Funstar You could give a try 😚

Edited December 4, 20241 yr by fhocorp

just looking for a little help with my vevor 3500 controller,having problems trying to charge batteries from generator, need a little advice on settings please.

1 hour ago, horse said:

just looking for a little help with my vevor 3500 controller,having problems trying to charge batteries from generator, need a little advice on settings please.

Hi @horse Nice to meet you. Could you inform us about your configuration ? (Type of battery, the wiring...etc) .

Nice to hear from you soon 🖐️

nice to meet you also

i have 4 100ah lithium batteries, 5 off 550 watt panels, 2 controllers vevor 3500 inverter charger for 3 panels and another noname controller for the other 2.not sure about wiring as not installed by me, just seems to me that the vevor controller does not recognize the generator.

2 hours ago, horse said:

nice to meet you also

i have 4 100ah lithium batteries, 5 off 550 watt panels, 2 controllers vevor 3500 inverter charger for 3 panels and another noname controller for the other 2.not sure about wiring as not installed by me, just seems to me that the vevor controller does not recognize the generator.

Wow, a very very large installation 🤩. For the generator, you have wired it to the AC IN of the vevor inverter ?

yes wired into ac in of inverter

9 minutes ago, horse said:

yes wired into ac in of inverter

Ok. You should the AC input setting. Normaly, there are 2 modes (UPS or Appliance) that can affect the detection of the AC Input. Just follow the manual of the inverter for details 🤗

the manual instructions not easy to follow

15 minutes ago, horse said:

the manual instructions not easy to follow

I know this...

This is the setting 03 (Press ENTER key 5 seconds to access the menu)

You should select the GEN or Appliance parameter (ENTER key to select, UP and DOWN to select parameter, ENTER key to validate. After EXIT key to exit menu)

thanks for the help, already set on APL but also tried GNE for about and hour each time. there may be another setting in the system somewhere or even a fault with the unit, if can't cure problem will have to upgrade to another controller.

50 minutes ago, horse said:

thanks for the help, already set on APL but also tried GNE for about and hour each time. there may be another setting in the system somewhere or even a fault with the unit, if can't cure problem will have to upgrade to another controller.

When you are in GNE profile, the device show a voltage on the input (displayed on the LCD screen) ?

If not, there could be a fault somewhere

yes it shows voltage and hertz . i think another way around the problem is to get a charger, and my friend found one online a 40 amp 25v so i think i will purchase it.

Hi Horse,

the inverter should work and no need for an external charger. Are you completely off-grid or do you have also some AC input from a provider just to test? The AC input should be somewhere in the range of 170V-250V ac 50Hz. The generator output should be also standardized 230Vac 50Hz. You have to measure at least the generator output voltage with an AC voltmeter prior to connect it to the inverter. Also the ON power button below the inverter case should be turned on.

Hello everyone,

I’m French and using an automatic translator, so I apologize in advance if my English isn't perfect.

I currently have 12 solar panels with APS YC600 and DS3L microinverters.

I'm planning to build a 24V 8kWh LiFePO4 battery.

I'm looking for an inverter that can both charge the battery and send power from the battery back to my house. I'm still connected to the grid through an electricity provider.

I know there are well-known inverter brands, but their prices are too high. To make the battery project worthwhile, the total cost needs to stay reasonable.

Do you think someone who is good at DIY but not a professional electrician could install a Vevor 3500W inverter?

In terms of build quality, should I expect it to have a short lifespan?

I don't plan to push it hard — the battery will only be used to supply up to 1kW maximum. I'll probably connect two solar panels to it as well.

Here in France, it comes with a 2-year warranty.

Would it be a good idea to get the version with built-in WiFi?

Also, if you have any suggestions for more reliable inverters, I would really appreciate it.

Thanks a lot for reading my message to the end!

1 hour ago, ericson said:

Hello everyone,

I’m French and using an automatic translator, so I apologize in advance if my English isn't perfect.

I currently have 12 solar panels with APS YC600 and DS3L microinverters.

I'm planning to build a 24V 8kWh LiFePO4 battery.

I'm looking for an inverter that can both charge the battery and send power from the battery back to my house. I'm still connected to the grid through an electricity provider.

I know there are well-known inverter brands, but their prices are too high. To make the battery project worthwhile, the total cost needs to stay reasonable.

Do you think someone who is good at DIY but not a professional electrician could install a Vevor 3500W inverter?

In terms of build quality, should I expect it to have a short lifespan?

I don't plan to push it hard — the battery will only be used to supply up to 1kW maximum. I'll probably connect two solar panels to it as well.

Here in France, it comes with a 2-year warranty.

Would it be a good idea to get the version with built-in WiFi?

Also, if you have any suggestions for more reliable inverters, I would really appreciate it.

Thanks a lot for reading my message to the end!

Ericson, the French,

If you already have microinverters connected to each PV (photovoltaic pannel) why do you want to install a hybrid solar inverter? This conversion method (PV to AC direct) is better than using a hybrid inverter.

However, if you want to switch from microinverter to a hybrid inverter just to connect a battery, then definitely I will not buy Vevor. You need an inverter which should be suitable for HV string (12x40V=480V at limit). Most low cost inverters have 500V maximum PV input. So perhaps you can go with 10 or 11 series connected PVs.

One good inverter is Anenji 6.2Kw/48V at 500V input. https://anenji.com/products/6200w-48v-hybrid-solar-inverter-on-grid-off-grid-with-wifi

3 hours ago, ericson said:

Hello everyone,

I’m French and using an automatic translator, so I apologize in advance if my English isn't perfect.

I currently have 12 solar panels with APS YC600 and DS3L microinverters.

I'm planning to build a 24V 8kWh LiFePO4 battery.

I'm looking for an inverter that can both charge the battery and send power from the battery back to my house. I'm still connected to the grid through an electricity provider.

I know there are well-known inverter brands, but their prices are too high. To make the battery project worthwhile, the total cost needs to stay reasonable.

Do you think someone who is good at DIY but not a professional electrician could install a Vevor 3500W inverter?

In terms of build quality, should I expect it to have a short lifespan?

I don't plan to push it hard — the battery will only be used to supply up to 1kW maximum. I'll probably connect two solar panels to it as well.

Here in France, it comes with a 2-year warranty.

Would it be a good idea to get the version with built-in WiFi?

Also, if you have any suggestions for more reliable inverters, I would really appreciate it.

Thanks a lot for reading my message to the end!

Hi @ericson Nice to meet you !🖐️ I am also french 😉 Feel free to contact me in MP for discuss your project or just here if you want 🤗