Methuselah

On three occasions now, I have tried to order goods from Power Forum Store. One can go through the on-line order process but, when you get to the payment page you are told to send an e-mail for the final quote including delivery costs. That's the end of the process. I've never received the "final quote". Try e-mailing - no reply. EVER! Try telephoning - the landline "is not in service" and the cell number is not answered. If you don't want to do business, that's fine by me. But I really dislike getting messed about by someone who advertises and never responds. What if you had a warranty claim - Will Power Forum Store be there to help you? Don't hold your breath. I strongly recommend that you take your money elsewhere, as I shall.

The grid went down twice last night and the system had no problems, no alarms. Tinbum, thank you so much! Your help has been invaluable. So sad about the Queen. In my opinion, the two most important and admirable people in the entire world of the last 100 years were QE2 and Margaret Thatcher. Amazing people, both, steady hands on a shipfull of drunken sailors!

Had a go! Shut down all batteries, moved comms cable to CAN port on Deye, replaced link cable to top "C", plugged comms cable back into master battery and switched on. So far BINGO. Now the BMS is talking to the inverter. Think I should kick my installer's butt!

My inverter is a Deye SUN5K SG01LP. The grid has just come back up and it looks as though the batteries are being recharged at 50.37volts so that should be OK. This is the link to the Deye manual https://www.deyeinverter.com/deyeinverter/2022/06/30/【b】使用说明书-储能单相-sun-(3.6-6)k-sg03lp1-eu-德业英文-封面彩印-封面封底157g-内页70g铜版纸-142.5x210mm-ver2.2-新机壳.pdf You (and now I) shall see that there are connections for BMS 485 and BMS CAN - and, having opened the inverter, I see that the comms cable is plugged into the 485 slot! ! ! ! ! The other end is plugged into the CAN slot on the Pylontech. OK, big question - can I just pull the plug out of the 485 slot on the inverter and plug it into the CAN slot? Or must I shut everything down first? Should I use the 485 mode or CAN? Think we are getting there! Thank you sooo much

Main screen and battery pack

The battery settings do NOT look OK. I'm sending some pics and hope you can see the details. They will come up on three messages (for reasons of size). This pic shows the Li-BMS page - doesn't look right! An update on the system:- we presently have no grid and no sun, but the batteries are supplying power to the house.

This morning as the grid went down, the master C showed an alarm with the buzzer ringing. I shut everything off and bypassed the master battery, by disconnecting the link port and changing the CAN cable to the CAN port on the second C. All quiet since then and all batteries at 100% SOC. We've had a lovely sunny day so the house has been running on solar all day - the batteries will be tested tonight when the grid goes down again 😛. Thanks, Tinbum.

Thanks, Tinbum. I've turned all dips to Off. The 2000 s have a manufacture date of 22/05/2020. Where do I find the firmware update (with install instructions, I hope) Sorry to be such a dweeb. Your assistance really appreciated.

Many thanks for the response Tinbum. I'm using CAN comms, not RS485. I have the "C" as master. According to the "C" version manual, (Pge 8 ) dip switches at 0, 0, 0, 0, AND 1, 0, 0, 0, = CAN terminal resistance connected. And 0, 1, 0, 0, = CAN terminal resistance = NONE. Which is right??? On the Link Port, pins 1, 2 and 3 are not connected. I have only one battery bank of four batteries. All gobbledegook to me!

Further to the above, I now have three alarms on the Deye 5kW inverter, all " F56 DC LOW VOLT". They have all occurred exactly when the grid goes down - but not always! Sometimes the inverter picks up the battery with no problem - other times, crash. I can find nothing to indicate why it does or does not crash. Please, anyone, some advice!

I have two Pylon US2000 connected to my Deye 5kW inverter and recently upgraded by adding two Pylon 2000C batteries. The batteries are now regularly setting off alarms. The inverter reports "DC volt low" alarms. I've searched for support (that I can understand!) on the dip switch settings without luck. The present settings (as set by my installer) are: Master battery (2000C) 0,1,0,0 : Second battery (2000C) 0,1,0,0 : Third battery (2000) 0,1,0,0 : Fourth battery (2000) 0, 0, 1, 0. These make no sense to me and don't match anything in the manual (I think!!). What is puzzling is that, on the Li BMS page, the inverter reports Voltage, current, SOC, temp and energy as ZERO. That suggests the batteries are not communicating correctly with the inverter. Any suggestions would be appreciated.

'Evening all, I have two Pylontech US2000B batteries and want to add two US2000Cs. Anyone had any experience of this arrangement? I'm told that there should be no problem if one of the "C" batteries is designated as Master, the other, and the "Bs" as slaves. Thanks!

Hello PB, if you are in the Western Cape coastal region I can recommend my installer. He's no craftsman, but a reasonably priced journeyman. Let me know if this would help you.

Yes, I thought there would be discussion on the subject but couldn't find it. So, doesn't that make the decision ever easier to go off-grid completely? Is it possible to tell Eskom to take their toys and duck?

There is a rumour doing the rounds that Eskom propose to charge more for power delivered to anyone with solar panels. Yes, yes, I know, only a complete moron would make that kind of suggestion in our present circumstances, but I'm not judgmental! Anyone else heard this?