houseofancients
Solar Wizard
there is not a single issue using multiple batteries at all with sunsynk/deye/sol-ark communications
i have 8 packs connected.
the only issue is specific to Solar assistant and external monitoring
Seplos CAN BUS RS485 48v 200A 8S-16S BMS
- Thread starter Firechief
- Start date
i have 8 packs connected.
the only issue is specific to Solar assistant and external monitoring
MisterB1959
Solar Enthusiast
- Joined
- Oct 22, 2022
- Messages
- 355
Thanks, i really appreciate the help and guidance you keep giving to me (and others of course!)
best wishes
best wishes
houseofancients
Solar Wizard
Be careful..
The firmware for the seplos 10e in Andy's zip file is specific for Victron..
The latest non Victron version is :
CAN1101[V16.06.05_PN01_230916_SP80](MOS闭合开机间歇充
Hi guy´s, I havent´been here for a while - now a questions (Seplos BMS first Generation (1101-SP16) with SW-Version 2.7):
When there is no full-charge a few days my SOC jumps from 90 to 100% on the next sunny day with full charge. In other words: My SOC is sinking about 3% every day without a full charge. So i think the current-shunt calibration is not correct, right? Or is that negligible?
Is it difficult to calibrate the shunt?
When there is no full-charge a few days my SOC jumps from 90 to 100% on the next sunny day with full charge. In other words: My SOC is sinking about 3% every day without a full charge. So i think the current-shunt calibration is not correct, right? Or is that negligible?
Is it difficult to calibrate the shunt?
Hi, has anyone had a recent firmware upgrade for a 10D (rs485) recently from Seplos? I have a couple of 10D's I'm trying to get to play nicely with 2 10E's and thought I'd see if they had an update as they haven't had one for a long time. Anyway, they sent over CAN1101[FW30_HW15_PN01_220907_ULTK]-SP50X.ehex saying that they this works for both CAN and RS485. Other firmware I have for the 10D starts RS not CAN. I double checked and they say this is correct for a 10D. I don't want to brick them so thought I'd best see if anyone else has tried this?
These would be very close. Battery voltage is the cell pack voltage. Bus voltage is the voltage on the BMS output to the inverter. If low current is flowing these are extremely close. If large current is flowing the difference is caused by the resistance introduced from the wires, pack and the connections between the BMS and the cells.
All of the above is correct if the BMS has not disconnected the battery pack. If it has done that the difference will be higher with no current flowing.
What specific changes has been made in that firmware?
BenYeats
New Member
Hello,
Newbie here.
I have recently built a Seplos / Mason battery using the V3 BMS and active balancer.
I decided to update the FW to the latest version, since doing this:
i) I can no longer connect to the BMS from my PC (using same cable and settings as before)
ii) The BMS does not stay switched on, I have to hold the reset button in for the display to stay active, I can then toggle through the menus but the contents are all missing (e.g. cell Voltages = 0 which is not possible as the BMS is powered from somewhere)
Any suggestions on how to recover things? I have emailed Seplos and Fogstart (kit vendor)
Thanks
Ben
Newbie here.
I have recently built a Seplos / Mason battery using the V3 BMS and active balancer.
I decided to update the FW to the latest version, since doing this:
i) I can no longer connect to the BMS from my PC (using same cable and settings as before)
ii) The BMS does not stay switched on, I have to hold the reset button in for the display to stay active, I can then toggle through the menus but the contents are all missing (e.g. cell Voltages = 0 which is not possible as the BMS is powered from somewhere)
Any suggestions on how to recover things? I have emailed Seplos and Fogstart (kit vendor)
Thanks
Ben
Was it ever working before or first time
Quattrohead
Solar Wizard
Are you sure that you have a V3, most of these battery boxes are still shipping with the V2/10E version.
I would like to have thought you couldn't put the wrong firmware on but it doesn't seem promising.
I would like to have thought you couldn't put the wrong firmware on but it doesn't seem promising.
BenYeats
New Member
Yes it was working for some days before I decided to upgrade.
BenYeats
New Member
Yes it is the 200A version of V3 and the add on active balancer PCB.
Sanwizard
Solar Wizard
- Joined
- Feb 2, 2021
- Messages
- 2,715
Try re-installing the firmware. If that does not work, a call to Seplos may be in order for an RMA exchange. Ask them to provide a BMS with the latest firmware. I have had good luck using contact through Alibaba.
BenYeats
New Member
wanted to make sure I was running the latest and greatest
BenYeats
New Member
Can't reload as the RS485 won't connect.
I am now wondering if there are two issues:
i) RS485 not connecting
ii) On / Off switch latch broken so does not latch on (not sure if this is a momentary switch or a push once)
I see the PCB has connections for SWD, worst case I could re-flash using that
weirded
New Member
- Joined
- May 8, 2021
- Messages
- 145
There is a parameter in the firmware for use with an external on/off switch (there’s a 2 pin header near the balancing section for this). It seems the firmware upgrade flipped that parameter to the other setting. You can keep it on for now by shorting out those two pins.
BenYeats
New Member
I was using the switch mounted on the PCB. It is marked as RESET on the battery case but ON/OFF in the BMS user guide. Would changing the parameter change the function of this switch?
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