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Esmart3 nuissances
#11
No, it's not. Just reset to factory defaults and unplug all the power to the CC (both positive and negative wires) from the battery and solar. Wait about 10-15 minutes to reset and then do it again.

It happened the first time for me, I was about to contact manufacturer, but it magically came back.
1500W of Residual Thermonuclear Energy Collectors (6X250W 2S)
40A eSmart3 MPPT Controller
Raspberry Pi 3 remote monitoring
BATTERIES, Need Lots of Batteries!
800 18650 (80P10S= 40.0v) 4.1Kw
12Kw Pure Sinewave 36V Inverter
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#12
(05-15-2019, 07:27 PM)DomingoRP Wrote: I know this is an old thread, but I've found the way to correctly calibrate the eSmart3 MPPT Charge controller. First, you click onto the gear on the top-right corner and type solar888 as the admin password, then on the 3rd field down on the left, type the current voltage of your batteries (using a volt-meter) and accept the changes. Voila!, the voltage on the controller matches the one on your batteries. Mine was about .5v higher than the actual battery voltage.

PS: If the fields are in chineese, use a tool from google (Google Translator) and use the camera to view the translation in English.

 Be aware this information is not correct. The third field on the left refers to "Charging Current". I have blindly followed this advise and my Esmart3 40A now is not working (I think it is but it shows all the time 0 on screen). I typed there my battery volatege and it went nuts inmediately. So changed that value to cero and cero shows on screen since then. Not blaming anybody here but myself for not checking the information beforehand.

 Can somebody with an Esmart3 40A please tell me what value appears in the spaced marked in red? I have asked for help to the seller Easun but have not many hopes.

 Thanks in advance.


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#13
Sorry to hear that, but that’s why I suggested to use Google Translator with the camera function to make sure the value being changed was the correct one. The value there is 1150. Or, just click on Restore Defaults.

1500W of Residual Thermonuclear Energy Collectors (6X250W 2S)
40A eSmart3 MPPT Controller
Raspberry Pi 3 remote monitoring
BATTERIES, Need Lots of Batteries!
800 18650 (80P10S= 40.0v) 4.1Kw
12Kw Pure Sinewave 36V Inverter
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#14
Thank you. Not blaming you in any way. It was totally my fault. I will try that in a couple of minutes.

Restoring defaults did not helped, it only restored the user adjustable values.
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#15
I'm not sure at all but...
I think "1150" is just the internally stored adjustment metric. I think what you have to enter in the input field is the Amperes currently running into the battery. So probably something in the 1~40 range. Or maybe mA.
At least that's how I adjusted the BAT voltage settings.
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#16
(06-22-2019, 01:28 PM)ajw22 Wrote: I'm not sure at all but...
I think "1150" is just the internally stored adjustment metric.  I think what you have to enter in the input field is the Amperes currently running into the battery.  So probably something in the 1~40 range.  Or maybe mA.
At least that's how I adjusted the BAT voltage settings.

I thought that at first, and waited at night even disconected the PV and entered cero (0) and applied. But no, it was not the solution.

It will not accept any typed value, whatever I type will go back to cero as soon as I exit the field. I have to click on the upper arrow and keep it on for the values to increase.... It will be a looooooooooooooooooooooooooooong time until I get from 0 to 1150 increasing the value by the decimals...

 Thank you
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#17
Pretty sure you can't calibrate the current sensor when no current is flowing.
You have to have a known current flowing (ideally something in the 20~40A range), get an accurate Ampere reading using eg. a DC clamp meter, then enter that value into the input field.
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#18
(06-22-2019, 01:57 PM)ajw22 Wrote: Pretty sure you can't calibrate the current sensor when no current is flowing.  
You have to have a known current flowing (ideally something in the 20~40A range), get an accurate Ampere reading using eg. a DC clamp meter, then enter that value into the input field.

 I will try that later today as typing 1150 in that value is not possible. Higher allowed is 1000 and does not make any difference. Got back to cero again.

 I even reseted the thing and disconected PV and Battery (for that order, very important) and waited 20 minutes... it did not make any difference. I have a battery monitor connected to the battery so it it quite simple to see how many amps are going in the battery.

 Thanks everyone.
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#19
Did not work either. Isolated the inverter and left the battery connected to the Esmart3 only. Battery was fully charged so set the float voltage equal to bulk. According to the battery monitor around 3.4 and 3.5 A were entering the battery so typed that value and hit apply. Nothing happened.

Good thing is that it seems to be working normally but main screen and monitoring software always shows cero for eveything except for the PV and battery voltage.

Running out of ideas... Maybe Easun can help.
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#20
Have you tried messing with the input field to the right (translates as "bias")?
My understanding (which may be wrong) is that the left field adjusts the value by multiplying (ie. the slope).
Whereas the field on the right adjusts by adding/subtracting a fixed amount (ie. the offset). So maybe try a small number like 1 (or -1?).
Maybe changing the bias will allow you to change the left values again. Or maybe it'll screw it up even more.
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