Keith C
Ahhh, the sharks have him.
Excellent points SolarM!
lol! error code: sulk mode ?Some modern ones can have data links between them so they can communicate and work together rather than risk fighting and falling out with each other. It’s never a pretty sight seeing a controller in sulk mode after losing a fight while the sun is out and the batteries are still hungry and wanting to be fed.
after reading issues with EPEVER SCC, such as the one you described, i too look for new alternativeI experienced MPPT charge controller fighting each other the first time I connected two EPEVER 2210 AN to the same battery bank. I started them separately with the circuit breakers to the battery and then added the PV circuit breakers. They started out sharing the load, but in the first five minutes the controllers started doing strange things like one would charge and then the other and they finally both shut completely down. I separated them to separate battery banks and restarted them and they have worked fine since, but now winter is coming and I need to add controllers so I can use my other panel arrays to keep the system up on those short cloudy days... I have also had issues with "glitches" in EPEVER controllers causing them to not charge properly so the battery never achieved a full charge. Shut down and restart always corrects the issue... I am considering replacing the entire controller string with Victron Energy MPPT's and using a Cerbo GX as the communication hub. My hope is that they will not fight when two charge controllers are connected to the same battery bank through circuit breakers then to buss bars? I have found a Great deal on four BlueSolar 100/20-48v units. They will all interconnect on the Cerbo GX so I should have good monitoring capability? Please jump in and offer advice.
thanks for sharing?They can fight for sure. Depends on the models and array size on each one. My OutBack models had this issue. It was impossible to match the voltage settings between the units. One MPPT would go from adsorb to float mode, but the other MPPT would have not hit it's absorb voltage yet, and stay in adsorb mode and keep the battery voltage high, boiling the FLA batteries for many hours.
Deep in the Outback Mate setting, there is a option to sync the float of all the CC. Once this is enabled, once one CC goes into float, they all do.
Please keep us in the loop on how this goes. It sounds like something others of us could use?after reading issues with EPEVER SCC, such as the one you described, i too look for new alternative
victron high amp SCC so expensive
but as you say BlueSolar 100/20-48 is maybe more affordable than the high amp ones.
i found a decent deal on that same one you mentioned, the BlueSolar 100/20-48, and took the plunge and now have a handful of them to build with.
at first will just configure them to all same charge parameters and i assume that will work perfectly fine. all connected to same battery bank, in parallel to same bank.
but importantly the BlueSolar can talk to Arduino so MPPT can be control by computer program
one “Feature Add” that i wish to experiment with is directly telling the SCC to reduce charge ampere current when battery cell is cold. NOT just chop off charging but reduce according to user provided look up table between temperature of cell material and allowed charge rate. of course also to insulate cells and consider heater in addition. engineering solar system is fun
That is strange. Have you asked EPever about this? It sounds like there is something NQR (Not Quite Right) with the control logic of the EPever. From the description above, you might not even be able to use the EPever Tracer with an inverter charger.I experienced MPPT charge controller fighting each other the first time I connected two EPEVER 2210 AN to the same battery bank. I started them separately with the circuit breakers to the battery and then added the PV circuit breakers. They started out sharing the load, but in the first five minutes the controllers started doing strange things like one would charge and then the other and they finally both shut completely down. I separated them to separate battery banks and restarted them and they have worked fine since, but now winter is coming and I need to add controllers so I can use my other panel arrays to keep the system up on those short cloudy days... I have also had issues with "glitches" in EPEVER controllers causing them to not charge properly so the battery never achieved a full charge. Shut down and restart always corrects the issue... I am considering replacing the entire controller string with Victron Energy MPPT's and using a Cerbo GX as the communication hub. My hope is that they will not fight when two charge controllers are connected to the same battery bank through circuit breakers then to buss bars? I have found a Great deal on four BlueSolar 100/20-48v units. They will all interconnect on the Cerbo GX so I should have good monitoring capability? Please jump in and offer advice.
if an attempt is made will try to document and share?Please keep us in the loop on how this goes. It sounds like something others of us could use?
I agree with the NQR. Epever does not give me very good support online. The tech usually just gives me a one liner about some other peripheral he thinks I need with no explanation of how to implement it... I have just ordered some Victron controllers that will hopefully solve the problem...That is strange. Have you asked EPever about this? It sounds like there is something NQR (Not Quite Right) with the control logic of the EPever. From the description above, you might not even be able to use the EPever Tracer with an inverter charger.
I have never used the Tracer controllers, but I have noticed several reports on the forum of strange behavior.... and it seems like the reports all contain "Shut down and restart always corrects the issue..." Perhaps it is wise to go to a different controller