We are unable to get the bms cable set up for our SOK 48v lithium batteries to the Growatt SPF12000 DVM -US-MPV We keep getting an error code 20 Have tried numerous times and had no success. We are off grid and because the bms is not working the generator will not automatically start when the battery SOC is low. Do you have any advice that good help us get this working. Any assistance is greatly appreciated.
Hi @cynthiaclemmens2692 Working under the assumption that the SOK batteries are similar to our EG4 batteries, this may help. To configure the batteries, switch the dipswitch on one to master and set the others to unique addresses. Daisy chain the battery banks using short patch cables, linking the master battery to the inverter with a straight-through Cat5/6 Ethernet cable. Adjust the inverter's battery type to Lithium, prompting a submenu for battery protocol (contact SOK for their specific protocol). Set the protocol, wait 1-3 minutes for system check for communication, and clear the code. Consider rebooting the system, but check battery settings for %(BMS) or V(no BMS) to confirm successful communication. I hope this helps!
Please post theses to your website to allow back orders to be placed even if they are out of stock with an unknow delivery date. We have customers that would like to look at the products and specs before placing an order with us. Not posting the products on your website is loosing us and you business.
Growatt 5000 manual says to only connect to the master inverter in a parallel system. You say all with the can hub. Which way is correct? My state of charge reading has been sporadically freezing at certain percentages that I believe I have proven the trouble to be with the Inverter. I'm wondering if bridging the cables to all 3 Inverters will add some redundancy and limit this error. It causes trouble because I use the dry contacts to charge my bank when it hits 25% but when it locks up it causes them to drain because the Inverters still think they are at a higher charge level. Next I will try switching to more reliable CAN communication through the Lifepower4 HUB as a last resort.
BMS cables will only go to the master, the actual power cables will need to be shared between all 3 inverters. Master inverter will be set to Lithium battery type, L01 as sub menu protocol, all secondary inverters on USE.
@@SignatureSolar Yes the BMS cables were the question but when I change the master inverter settings the slave 1 and 2 setting automatically copy. Are you saying I need to manually go and change the 2 slaves to USE “user defined” which isn’t a communicating setting? Currently I am able to read SOC on all 3 inverters
Do you have any idea of what are the BMS protocols 1,2,3,4 ? Growatt do not want to share the information with me. I use 2 Elite 48V 125Ah lifepo4 batteries connected in parallel. Actually selected LI protocol 1, but not sure it is the best suited...
We recommend trying all 4 BMS settings on the batteries. If none work, we suggest reaching out to Growatt or the battery manufacturer for further assistance. These batteries aren't our own, so we don't have specific protocol information.
We connect 3x for your Battery-pack (48V, 50Ah) in serial DC ( 144v , 50Ah) , and RS485 communication Cables . Then we connect the DC output to the Growatt Hybrid inverter SPH5000TL3 DC, and via CAN with an CAN-Cable also to the CAN - Plug of the Inverter. BUT Growatt Inverter can not communicate with YOUR Battery-Packs!?? So, we need urgend , for YOUR application we use, technical support / connection plan scetch from your tecnical depatment. Also we must konw , how to set the dip-switches for each battery-pack (Master and slave settings for each Pack) ? Aslo we need to know , if we need special CAN cables or Special RS485 Cables????
Hi! If you'd like to reach out to us, you can call 903-441-2090 for tech support or email directly at engagement@signaturesolar.com and we can take a look with you!
dont you must connect the battery packs to each other via, with rs485 ports to rs485 port? or how are the other packs ( exapt master pack) must be connected to eachotehr or to inverter??????thanks
I notice alot of the more technical questions asked are skipped which concerns me as a customer. I imagine by now the 3000LVM+LIFEPO4 is becoming a standard setup. Is the patch cable a standard RJ45 ethernet patch cable, or is it a crossover or custom cable that has a different pinout for the RS485 protocol? What advantages are there vs just leaving the Growatt 3000LVM on default settings and just connecting power to a LifePO4?
I have the 3000LVM 48v inverters. It took me a while to figure things out but you need your master battery with all 4 dips down. Then plug your cat5/6 cable into the bms port. If that doesn't work look into your firmware version on your inverter. I had to update mine in order to get these batteries to talk with my growatts. I'm still having some charging issues but hopefully I can get that figured out soon too.
@@ghostriderjku7209 what are your charging issues? I'm surprised growatt doesn't have a battery compatability list for the li mode. They told me they don't have one...
I’m having problems conecting my lithium batery on my inverter.. I have 2 rj45 bms and r485 Growatt es 5000 48v And my batery has 3 ports rs232 can and rs485 what should I plug
I got the 5000 inverter and 3 EG4 batteries from you earlier this year. Do I need to update the firmware on it before they will communicate? I currently have it set to 'use' on program #5.
@@SignatureSolar it's the 48v 100ah one and it has 2 RS 485 ports and I'm also struggling to get the USB connector working. What's the pinpoint for the RJ 45 connector?
@@SignatureSolar that's the way I have it and I'm sure the polarity is correct but it's still not working. I've been emailing with Jack and Debra today but haven't heard back and I'm not sure what it could be because I have the drivers installed correctly and the com Port selected correctly and the dip switches on the battery set appropriately so I'm not sure what could be wrong.
James, to me lo1 looks too much like laugh out loud. I'm glad I've got the Sun 2000 inverter. I haven't gotten that far with it yet. At least I finally got the Fireman's switch installed and I'm working my way back from there. Next stop will be the breaker box in the basement and from the other end I'm going through my other disconnect switch in the basement and up into my inverter. So far, so good.🐸
You forgot to mention that if your GroWatt firmware is more than a year old, it won't talk with the EG4 no matter what you do - until you update the firmware.
hello, I hooking up a Growatt 48V 3KW LVM with those Lifepower4 batteries shown in this video. So on the inverter I should plug into the 485 port not the one marked BMS. Also what is the correct protocol for this pair. (single inverter & 2 batteries) program 05 LI is program 36 I assume I should be using protocol #1 general question 2) can both batteries be hooked up without checking there voltages and they will sync up once hooked up to the solar. Or do I need to pre-charge them before using. currently don't have the standalone charger Thanks so much Tom
I'm in a similar situation I have the 3k lvm and I'm connecting a lifepo4 battery with 2 rj45 connections. I don't see what settings to use in the option 5.
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We are unable to get the bms cable set up for our SOK 48v lithium batteries to the Growatt SPF12000 DVM -US-MPV We keep getting an error code 20 Have tried numerous times and had no success. We are off grid and because the bms is not working the generator will not automatically start when the battery SOC is low. Do you have any advice that good help us get this working. Any assistance is greatly appreciated.
Hi @cynthiaclemmens2692 Working under the assumption that the SOK batteries are similar to our EG4 batteries, this may help.
To configure the batteries, switch the dipswitch on one to master and set the others to unique addresses. Daisy chain the battery banks using short patch cables, linking the master battery to the inverter with a straight-through Cat5/6 Ethernet cable.
Adjust the inverter's battery type to Lithium, prompting a submenu for battery protocol (contact SOK for their specific protocol). Set the protocol, wait 1-3 minutes for system check for communication, and clear the code.
Consider rebooting the system, but check battery settings for %(BMS) or V(no BMS) to confirm successful communication.
I hope this helps!
Please post theses to your website to allow back orders to be placed even if they are out of stock with an unknow delivery date. We have customers that would like to look at the products and specs before placing an order with us. Not posting the products on your website is loosing us and you business.
We are going back live with this in the next 2 weeks for permanent. pls reach out to our phone line if you would like to reserve before we go live
Can lifepo4 cell information be views remotely from the growatt inverter?
is it common for the bms to limit power when battery reaches 90% no matter the load
What is the benefit of connecting these to the inverters? I haven’t quite figured that out.
Growatt 5000 manual says to only connect to the master inverter in a parallel system. You say all with the can hub. Which way is correct? My state of charge reading has been sporadically freezing at certain percentages that I believe I have proven the trouble to be with the Inverter. I'm wondering if bridging the cables to all 3 Inverters will add some redundancy and limit this error. It causes trouble because I use the dry contacts to charge my bank when it hits 25% but when it locks up it causes them to drain because the Inverters still think they are at a higher charge level. Next I will try switching to more reliable CAN communication through the Lifepower4 HUB as a last resort.
BMS cables will only go to the master, the actual power cables will need to be shared between all 3 inverters. Master inverter will be set to Lithium battery type, L01 as sub menu protocol, all secondary inverters on USE.
@@SignatureSolar Yes the BMS cables were the question but when I change the master inverter settings the slave 1 and 2 setting automatically copy. Are you saying I need to manually go and change the 2 slaves to USE “user defined” which isn’t a communicating setting? Currently I am able to read SOC on all 3 inverters
My 6kw getting #20 code
Do you have any idea of what are the BMS protocols 1,2,3,4 ?
Growatt do not want to share the information with me. I use 2 Elite 48V 125Ah lifepo4 batteries connected in parallel.
Actually selected LI protocol 1, but not sure it is the best suited...
We recommend trying all 4 BMS settings on the batteries. If none work, we suggest reaching out to Growatt or the battery manufacturer for further assistance. These batteries aren't our own, so we don't have specific protocol information.
@@SignatureSolar okay, Thanks for answering 👍
We connect 3x for your Battery-pack (48V, 50Ah) in serial DC ( 144v , 50Ah) , and RS485 communication Cables .
Then we connect the DC output to the Growatt Hybrid inverter SPH5000TL3 DC, and via CAN with an CAN-Cable also to the CAN - Plug of the Inverter.
BUT Growatt Inverter can not communicate with YOUR Battery-Packs!??
So, we need urgend , for YOUR application we use, technical support / connection plan scetch from your tecnical depatment.
Also we must konw , how to set the dip-switches for each battery-pack (Master and slave settings for each Pack) ?
Aslo we need to know , if we need special CAN cables or Special RS485 Cables????
Mine goes to low battery mode when I change the inverter to LiPO4
Hi! If you'd like to reach out to us, you can call 903-441-2090 for tech support or email directly at engagement@signaturesolar.com and we can take a look with you!
@@SignatureSolar I am in Nigeria
dont you must connect the battery packs to each other via, with rs485 ports to rs485 port? or how are the other packs ( exapt master pack) must be connected to eachotehr or to inverter??????thanks
That Growatt 12k is showing 230V output. Hopefully that isn't the one you're selling in the US right now?
I notice alot of the more technical questions asked are skipped which concerns me as a customer. I imagine by now the 3000LVM+LIFEPO4 is becoming a standard setup. Is the patch cable a standard RJ45 ethernet patch cable, or is it a crossover or custom cable that has a different pinout for the RS485 protocol? What advantages are there vs just leaving the Growatt 3000LVM on default settings and just connecting power to a LifePO4?
I have the same questions and would like to know what the default DIP switch settings should be.
I have the 3000LVM 48v inverters. It took me a while to figure things out but you need your master battery with all 4 dips down. Then plug your cat5/6 cable into the bms port. If that doesn't work look into your firmware version on your inverter. I had to update mine in order to get these batteries to talk with my growatts. I'm still having some charging issues but hopefully I can get that figured out soon too.
@@ghostriderjku7209 what are your charging issues? I'm surprised growatt doesn't have a battery compatability list for the li mode. They told me they don't have one...
I’m having problems conecting my lithium batery on my inverter.. I have 2 rj45 bms and r485 Growatt es 5000 48v And my batery has 3 ports rs232 can and rs485 what should I plug
Trying to use bms_tools with my eg4 it calls for usb-to-RJ45 connection... any diagrams for this? I'd like to roll my own. Thanks!
what does L01 represent ?
Lithium ion 1 - Its a battery setting.
I got the 5000 inverter and 3 EG4 batteries from you earlier this year. Do I need to update the firmware on it before they will communicate? I currently have it set to 'use' on program #5.
if your battery has the 4 ports on the front you can use the EGYLL battery video to set up comms
@@SignatureSolar it's the 48v 100ah one and it has 2 RS 485 ports and I'm also struggling to get the USB connector working. What's the pinpoint for the RJ 45 connector?
@@twelveofthem 7 and 8
@@SignatureSolar that's the way I have it and I'm sure the polarity is correct but it's still not working. I've been emailing with Jack and Debra today but haven't heard back and I'm not sure what it could be because I have the drivers installed correctly and the com Port selected correctly and the dip switches on the battery set appropriately so I'm not sure what could be wrong.
Hi there. What kind of cable you are using for the communication to inverter
What about the 3k growatt? And can you check voltage of each cell?
How much would it cost to ship one of the 48v batteries to Florida?
Hi can yea do a video on how to set it all off grid only use the grid wen the batteries are to LOW
Thanks, you saved me lota of trouble!!
Is it that you have to use the gyll/eg4 batteries with a Growatt inverter or can the batteries communicate with other brand inverters?
James, to me lo1 looks too much like laugh out loud. I'm glad I've got the Sun 2000 inverter. I haven't gotten that far with it yet. At least I finally got the Fireman's switch installed and I'm working my way back from there. Next stop will be the breaker box in the basement and from the other end I'm going through my other disconnect switch in the basement and up into my inverter. So far, so good.🐸
Yes Akb LiFePo4 🔋 ⚡ 👍
I have watched loads of videos on youTube and i honestly appreciate the way you guys at Signature Solar explain. Simple and straight forward.
You forgot to mention that if your GroWatt firmware is more than a year old, it won't talk with the EG4 no matter what you do - until you update the firmware.
Update it lol
Thank you. My bms works now... Lo1 was the key
Glad it helped!
is that a regular rj45 network cable? or do it requires an unique cable disposition
Same questions
I have a growatt 3k 24v. Do I connect it to the bus port or the RS485 port?
I have only had success using the BMS port on the inverter.
hello, I hooking up a Growatt 48V 3KW LVM with those Lifepower4 batteries shown in this video. So on the inverter I should plug into the 485 port not the one marked BMS. Also what is the correct protocol for this pair. (single inverter & 2 batteries)
program 05 LI is program 36 I assume I should be using protocol #1
general question 2) can both batteries be hooked up without checking there voltages and they will sync up once hooked up to the solar. Or do I need to pre-charge them before using. currently don't have the standalone charger
Thanks so much
Tom
I'm in a similar situation I have the 3k lvm and I'm connecting a lifepo4 battery with 2 rj45 connections. I don't see what settings to use in the option 5.
On setting 5 use LI with protocol L01 36
I have only had success using the BMS port on the 3000 LVM 48v inverters.
Will this be the same with the 3k growatt inverter
yes!