today I received a response from Epover and here there is a strange thing:
in the instructions there is a power graph, where at 50 watts it has more than 90 percent efficiency.
Epover write that the controller switches to PWM mode below when the current is below 1.5 amperes,
but 1.5 amperes in...
Yes, for me, too, turning the panel off and on gives an increase in charge power.
At a current of 1.4 amperes, the controller operates reliably in mppt mode if the panel is turned off and on.
Apparently there are two separate problems:
stuck in PWM mode and you need to turn the panels off and on...
I decided that a full battery charge could cause this controller behavior.
So I reduced the voltage using an inverter so that the solar controller thinks that the battery is not charged
panel voltage 60 volts.Looks like I have the same problem as here
https://diysolarforum.com/threads/epever-charge-controller-dropping-out-of-mppt-mode.52189/
I'll wait for the adapter from Aliexpress, make a cord and flash it with this firmware...
For most controllers, both PWM and MPPT, parallel connection can lead to malfunctions of the microcontroller, and in the event of such failures, the charge controllers may trigger protection, or even lead to a short circuit...
Ok, thanks a lot for your kindly understand and support, we recommend you use the SV200 firmware version have a try, here is the update package download link:
https://we.tl/t-VTv0zwqp3m?utm_campaign=TRN_TDL_05&utm_source=sendgrid&utm_medium=email&trk=TRN_TDL_05
For the PV power, the PV power...
Hello !
my Epever 3210AN solar controllerdoes not work as mppt in cloudy weather.
I turn on the solar panels, the controller searches for the optimal voltage, does not stop at its optimal value and drops to 14 volts.
help me please fix this problem.
Perhaps it doesn't have enough power?
What is...
Here some pinout option is not correct.
here is the cable pinout for mt50
https://mysku.club/blog/china-stores/52967.html
and it’s not clear where to connect the ground wire
My priority was to obtain energy from the sun in winter, when there is little sun.If I had known that the mpt solar controller would not work up to 1.5 amperes, I would have taken a cheap PWM controller and connected the panels in parallel.
Reflashing didn't help.
up to 0.4 ampere it is not capable of operating in mppt mode.
at a current of 0.5 amperes and above, it operates in mode mppt only after disconnecting and connecting the solar panel.
Hello !
help me please .
My Tracer 3210AN has a similar problem.
please tell me how to flash it?
what equipment should I buy?
where can I get the firmware file?
the operating current threshold is mppt 0.6 amperes in the stuck straight through mode, 14 volts at the input.
Reconnecting the solar panel activates mode mppt and the panel current becomes 0.5 amps with high voltage input
yes, it's new.
I didn’t adjust the voltage, everything was by default, I just changed the battery type in the battery type settings.
when I was filming the video, I reduced the battery voltage,connected the load and the battery voltage decreased
Hello !
please tell me what value boost duration should be set for battery efb?
The manufacturer recommends maintaining 14.4 volts for 10 hours for a full charge.
But if you set it for 10 hours, the floating charge will never occur and you probably charge the battery every day for 10 hours. 14.4...
The manufacturer recommends charging with a voltage of 14.4
and on the Internet they recommend voltage 14-6-14-8
what value should I set?
what value to choose: boost reconnect ?