January 22, 20242 yr Hi, I have 2 of the batteries mentioned connected by official provider. After the install I noticed 2 things strange, they used the wrong cable to connect them to my Solis inverter RHI-(3-6)K-48ES-5G, they used the one labeled battery to battery with 8 pins in the ethernet cable all connected. While the manual says for the batteries you should use a cable with 1-3 null and the rest connected pins in the cable... Is this an issue? As the system seems working fine other then the batteries only discharge on 1.8KWh max. The other issue I can see is the battery to battery short cables were connected Link1 to Link1 instead of manual recommended Link1 to Link0. Lastly the red swithes all left on default, seems ok by the manual but is it? Can be this an issue too? I had only the discharge rate I can see strange considering the battery can do emergency discharge 3KWh, and the inverter has a page in the app showing less details, but otherwise all working fine. What I would do is get a tool to rewire the battery to battery cable to the proper layout, but if all wires connected and the inverter can disregard the 3 extra, then maybe not as it is still under warranty and the provider said it is fine... And plugging the Link1 to Link 0 seems a easy change if that means some improovement on discharge\charge rate.? Edited January 22, 20242 yr by Zoltan
January 22, 20242 yr Get them back to do it correctly. It's not up to you to correct their work. If it goes wrong they would then blame you.
January 23, 20242 yr Battery with linkport 0 empty is the Master battery, so the lower one should be plugged into linkport 0, not 1. Dip switches must be configured for proper master battery setting and communication baudrates according to the manual. As Tinbum said, get them back to do it correctly.
January 23, 20242 yr Author 31 minutes ago, Mauritius B said: Battery with linkport 0 empty is the Master battery, so the lower one should be plugged into linkport 0, not 1. Dip switches must be configured for proper master battery setting and communication baudrates according to the manual. As Tinbum said, get them back to do it correctly. the manual says dips should stay as is, unless i have multiple groups, the cable i can plug into the other link port I guess I should turn it off first:)
January 23, 20242 yr 1 hour ago, Zoltan said: they went out of business Probably a good thing. Your Battery/inverter CAN cable does want changing. Dip switches only require changing if your using RS485 communication to the inverter or battery GROUPS (as you say) Battery battery link wants changing as you mentioned..
January 23, 20242 yr Author 44 minutes ago, Tinbum said: Probably a good thing. Your Battery/inverter CAN cable does want changing. Dip switches only require changing if your using RS485 communication to the inverter or battery GROUPS (as you say) Battery battery link wants changing as you mentioned.. probably a good thing, yes The CAN cable can cause issues in what way if it has all 8 pins connected? I am reluctant to touch it as it works fine. And sadly the company drilled ony a hole big enough to push through the 3 cables only... it is concrete. I would only cut the cable ends and reinstall the plugs with the 3null 5connected layout if it is causing any issues. The other Link1-0 I can do easily, although I cant see if it would resolve the charging\discarging rate. Maybe it is tha max this setup cen run.
January 23, 20242 yr 2 hours ago, Zoltan said: the manual says dips should stay as is, unless i have multiple groups, the cable i can plug into the other link port I guess I should turn it off first:) The manual says all DIPs off, only #1-on or only #2-on, depending on CAN configuration and RS485 speed. Yours are all on as shown on the picture. Maybe it is a good idea to double check the manual and DIPs.
January 23, 20242 yr 45 minutes ago, Zoltan said: probably a good thing, yes The CAN cable can cause issues in what way if it has all 8 pins connected? I am reluctant to touch it as it works fine. And sadly the company drilled ony a hole big enough to push through the 3 cables only... it is concrete. I would only cut the cable ends and reinstall the plugs with the 3null 5connected layout if it is causing any issues. The other Link1-0 I can do easily, although I cant see if it would resolve the charging\discarging rate. Maybe it is tha max this setup cen run. You need to connect everything properly with the right cables cause if you don't, the inverter will never know how many batteries are connected and what is the maximum current it can draw from them. All batteries communicate through the linkport with the master and the master tells the inverter how many batteries you have. If you set the inverter to work in BMS control mode, it needs to know how many batteries you have.
January 23, 20242 yr Author 3 hours ago, Mauritius B said: You need to connect everything properly with the right cables cause if you don't, the inverter will never know how many batteries are connected and what is the maximum current it can draw from them. All batteries communicate through the linkport with the master and the master tells the inverter how many batteries you have. If you set the inverter to work in BMS control mode, it needs to know how many batteries you have. what happens in this case that the link1-1 connected, both considered master?
January 24, 20242 yr 12 hours ago, Zoltan said: probably a good thing, yes The CAN cable can cause issues in what way if it has all 8 pins connected? I am reluctant to touch it as it works fine. In your 1st post you indicate you can only use 1.8kWh instead of 3 kWh. This is a major loss of capacity. Try getting those DIP switches correct.
January 24, 20242 yr 11 hours ago, Zoltan said: what happens in this case that the link1-1 connected, both considered master? No master, no proper communications, no capacity definition = blind inverter = system not working 100% If you feel so unsure, get someone to check the system for you. It is not rocket science.
January 24, 20242 yr 4 hours ago, Scorp007 said: In your 1st post you indicate you can only use 1.8kWh instead of 3 kWh. This is a major loss of capacity. Try getting those DIP switches correct. Dip switches are only for RS485 and battery Groups not CAN communication.
January 24, 20242 yr @Zoltan did you swop the cable to linkport 1 of bottom battery, this should fix your issue?
January 24, 20242 yr 4 hours ago, Chris Louw said: Should the 1,8 not be kW. That is about 0.5c Well spotted but there are 2 batteries?
January 24, 20242 yr 6 hours ago, Tinbum said: Dip switches are only for RS485 and battery Groups not CAN communication. Are you sure? It seems that depending on the presence of termination resistor on CAN bus you need to set DIP 1 & 2
January 24, 20242 yr 5 minutes ago, Mauritius B said: Are you sure? It seems that depending on the presence of termination resistor on CAN bus you need to set DIP 1 & 2 You would only ever use that if you had 3 units on the same CAN bus and when would you have that? It would only be in very specialized cases and you would really have to know what you were doing.
January 24, 20242 yr 6 minutes ago, Tinbum said: You would only ever use that if you had 3 units on the same CAN bus and when would you have that? It would only be in very specialized cases and you would really have to know what you were doing. Please, excuse my ignorance but I am just reading the user's manual. I don't get the point of having 3 units on the same CAN if we are talking about direct comms between inverter and master battery. Anyway, the 4 DIPs on the picture are still set on on/1 position and the link is cable connected on the wrong port on the slave battery. As I do not really know what I'm doing I am quite afraid and unsure of the behaviour of a battery having a wrong DIP configuration that is not even listed in the user manual.
January 24, 20242 yr Yes they should all be off, and the battery link cable should changed. The batteries are supplied with them off as default so why the installer has changed them just shows they had no idea at all. Perhaps they knew it wasn't working as it should so willy nilly changed things to try to get It to work? You would not normally have 3 units on the CAN bus. An example of when you could is if you had say an arduino that you were using to 'sniff' the messages. In that case though you would normally not have the resistor connected on the arduino so you wouldn't need to change the dip switches.
January 24, 20242 yr Author 3 hours ago, Mauritius B said: Are you sure? It seems that depending on the presence of termination resistor on CAN bus you need to set DIP 1 & 2 what does based on the BMS, the DIP switches deployed reversly means? Strange thisn that the whole config works at all for a year now, capacity charged seems correct despite the dip switches being all on and the link connected to 1-1 and the inverter to battery cable having all wire connected. what would be the correct dip switch setting in my case for 2 battery connected to the aformentioned hybrid inverter through the CAN port?
January 24, 20242 yr 3 minutes ago, Zoltan said: what does based on the BMS, the DIP switches deployed reversly means? Strange thisn that the whole config works at all for a year now, capacity charged seems correct despite the dip switches being all on and the link connected to 1-1 and the inverter to battery cable having all wire connected. what would be the correct dip switch setting in my case for 2 battery connected to the aformentioned hybrid inverter through the CAN port? All the dips off and change the battery link. Also correct the CAN battery inverter cable.
January 24, 20242 yr 5 minutes ago, Zoltan said: what does based on the BMS, the DIP switches deployed reversly means? The dip switch is installed upside down.
January 24, 20242 yr 14 minutes ago, Tinbum said: The dip switch is installed upside down. And no 1 is on the right. At least the on and off and numbers as marked are used. It is however enough to confuse people when they are upside down.
January 24, 20242 yr Author 1 hour ago, Tinbum said: All the dips off and change the battery link. Also correct the CAN battery inverter cable. will do, I guess i need to power down both the inverter and cut it from the mains during this to make sure after reboot it has the effect without issues
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