houseofancients
Solar Wizard
not to my knowledge, board is powered from batteriesHi, my Seplos BMS has arrived , should I be able to communicate with BMS on computer without connecting to battery system?
not to my knowledge, board is powered from batteriesHi, my Seplos BMS has arrived , should I be able to communicate with BMS on computer without connecting to battery system?
sure, cut the wiresIs there a way of setting it up to be wireless?
sure, cut the wires
do you have everything connected according to the manual ( lead wire and all ) ?When I connect it starts up for a few seconds the battery monitor reads the BMS then the BMS shuts down. Is there a way of finding out why?
I believe so, b+ to battery negative and b- to battery negative. Other two have not been connected up to inverter yet.do you have everything connected according to the manual ( lead wire and all ) ?
i was reffering to the balancing harnassI believe so, b+ to battery negative and b- to battery negative. Other two have not been connected up to inverter yet.
RS485
Green -> GND
Orange -> A
Brown -> B
LCD into LCD slot, that lights up with “Battery Management” and then goes off
I'm having similar problems as the OP as well. I just checked both of my Waveshare adapters and I don't see the same numbers @tigerwillow1 posted. I think one of the adapters is dead because I don't see any voltage on A+ or B- to each other or ground (even though I see the TX light flicker on intervals.)Here are voltage measurements at the BMS 485 connector with nothing plugged in.
A= pin 2 or 7
B= pin 1 or 8
G= pin 3 or 6
A to B = ~5 volts, positive at A
A to G = ~5 volts, positive at A
B to G =about 0.015 volts, positive at B
Taken with an analog meter. This is the last thing I think of for remote help. It's tough when you don't have spares to swap in. I've been fighting an intermittent A/V problem at our church for 6 months, without spares for the expensive stuff. It's maddening!
Bought a new USB to RS485 adapter and it works now, albeit at 9600 baud (odd.) I can see individual packs as well as packs connected in series (set via dip switches.)I'm having similar problems as well. I just checked both of my Waveshare adapters and I don't see the same numbers
I'm having similar problems as the OP as well. I just checked both of my Waveshare adapters and I don't see the same numbers @tigerwillow1 posted. I think one of the adapters is dead because I don't see any voltage on A+ or B- to each other or ground (even though I see the TX light flicker on intervals.)
The other one shows:
A+ to B- ~5V
A+ to G minimal positive voltage
B- to G minimal negative voltage
I do see the meter jump on TX, but only about 20-30 mV.
Yes I just get a time out message for both. Any suggestions?did use the correct baudrate ?
depending on the version you have , this can be 19200 or 9600
Also do I really need to connect to the BMS to use it? Or can I just use as is? I get people want to see what's happening a tweak settings. But is it really needed?did use the correct baudrate ?
depending on the version you have , this can be 19200 or 9600
you can use it as is, however , individual cell monitoring, tweakering of initial settings, and changing comm protocols will require connecting to itAlso do I really need to connect to the BMS to use it? Or can I just use as is? I get people want to see what's happening a tweak settings. But is it really needed?
I guess that's a positive, rather than leaving it around I can at least put it to work on my Sofar ME3000SP. I've got Pylontechs so I should be able to swap them. Hopefully the protocol is already set to Pylon. Otherwise I'll have to keep trying to get the BMS to connectyou can use it as is, however , individual cell monitoring, tweakering of initial settings, and changing comm protocols will require connecting to it
Please share the pinouts for the cable Seplos suggestedSo I need to build a new cable. According to Seplos my cable that works with Pylontech won't work with their BMS... The connector will arrive tomorrow then I'll make my own Ethernet out with the right pins. Hassle