Never tried but I can show you how to program it yourself.
I read through some of that thread earlier, and I decided that I didn't have time to dig in to fully understand all of it right now. The car has been down for two months due to a charger issue, and with work and school full time, it will be down for at least another two before I have time to really dig in. In the interest of getting the car back on the road, I purchased a 1 year old Elcon 2500 PFC charger from eBay with the understanding that I could send it to them to be reprogrammed.The voltages and current rating are determined by the hardware so it is possible to put in a program that won’t run.
As far as doing it yourself you would need some hardware and skills such as soldering and using Arduino software.
I believe everything you need to know is already on this forum under Elcon firmware facts.
https://www.diyelectriccar.com/forums/showthread.php?t=134225&highlight=Elcon+firmware
Yes, the voltage range is determined by the parts inside such as the transformer. It’s usually written on the transformers with paint. Someone could have gotten the cover mixed up with another charger if they had more than one. I would ask the person that sold it to you. I have never interfaced with Elcon before but I heard they were kind of short with their communication.
What was wrong with your old charger? We could possible fix it. We have fixed quite a few. The programming seems daunting but it is not that hard. You need to build a little driver board and connect to an arduino and then load the arduino code from a computer. Them plug into the charger and download the code into the charger.
That is the same thing as an Elcon. Both manufactured by the same company. The can be reprogrammed to use enable instead of can or vise-versaThe old charger is a 3.3kw TC charger.
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This is the new style of charger, and it has full CAN control. I can set voltage and amperage directly from my BMS. It's not just on/off like the old ones. I have already been down the road of trying to get them to repair/reprogram this charger, and they won't touch it with a 10 foot pole, probably because it's potted imo. The only option they gave me was to buy another one at cost as a replacement. That's their "warranty".That is the same thing as an Elcon. Both manufactured by the same company. The can be reprogrammed to use enable instead of can or vise-versa
The old ones can be CAN control as well. It's just a software load and they work the same way. You command it voltage and current. The on/off models are like your current one and don't have the CAN interface.This is the new style of charger, and it has full CAN control. I can set voltage and amperage directly from my BMS. It's not just on/off like the old ones. I have already been down the road of trying to get them to repair/reprogram this charger, and they won't touch it with a 10 foot pole, probably because it's potted imo. The only option they gave me was to buy another one at cost as a replacement. That's their "warranty".
I wasn't aware that could be done without a module to interface with the charger. That's neat. You can look at the other thread, where I posted a few pictures of the innards so far.The old ones can be CAN control as well. It's just a software load and they work the same way. You command it voltage and current. The on/off models are like your current one and don't have the CAN interface.
I've not played with a new one but I imagine they aren't too different.
Hi, pdove,What was wrong with your old charger? We could possible fix it. We have fixed quite a few.
3.38 VPC is quite low. You'd really want to go to around 3.55 VPC, which was 142 V for your 40-cell configuration.Incidentally, what gave rise to the problem is that I added two cells to a 40 cell pack. Even with 42 cells, the old programming should cover the charging… It’s a 520V algorithm 133-142V in 1V steps. I have drained the battery down below 134V, and I’m trying to charge it to 142, Which is about 3.38V per cell.
I would love to get it reprogrammed; but as I said, I’m having trouble getting hold of Elcon. I am charging my other cars to about 3.54 per cell. When charging stops, they immediately sag back to about 3.35. So I figured 3.38 was on the low side, but that should be adequate for testing.3.38 VPC is quite low. You'd really want to go to around 3.55 VPC, which was 142 V for your 40-cell configuration.
Elcon in California could do it (if they are still interested in these older models).
Send my a PM and I will give you my address. You can ship it to me and I will reprogram it.I would love to get it reprogrammed; but as I said, I’m having trouble getting hold of Elcon. I am charging my other cars to about 3.54 per cell. When charging stops, they immediately sag back to about 3.35. So I figured 3.38 was on the low side, but that should be adequate for testing.
If I’m stuck on algorithm seven, then it should start charging at anything below 139 V, shouldn’t it? Historically, I’ve been able to do that with my other cars… Top it back off after I’ve only burned 10 or 20 amp hours.