We have had our system running for a few months and have encountered problem with enabling the BMS control of the inverters.
Our system topology is as follows:
I unplugged the data cables for the slave batteries and unconnected and reconnected the battery data cables from the Insight Facility and master batteries and then ran through the device detection process a second time. Both battery BMS’s were detected. I reattached the data cables for the slave batteries and they did not add to the BMS string as they did in the EG4 LL V2 portion of the video put out by Signature Solar.
I had the inverter’s battery settings configured to: Li-Ion, BMS, SOC controlled.
When the well pump kicked on this morning the starting load appears to have triggered a fault that the batteries were over discharged. This in turn shutdown the inverters. I believe the problem is that the BMS control for the inverters is only detecting the master battery on the first string. This seems to be confirmed by reverting the inverter battery settings from BMS and SOC enabled to 2 stage and SOC off.
Questions:
1. How do I get the BMS’s to see all the batteries?
2. BMS #1 dropped offline on its own. I disconnected the pin block from the Insight Facility and BMS #2 also dropped offline. I cannot get the Insight Facility to redetect the batteries. How do I get the Insight Facility to redetect the "Offline" Battery BMS's?
Thanks,
Matt
Our system topology is as follows:
- 10.5 KW PV input split into 3 arrays
- Feeding into three Schneider Electric MPT 100 charge controllers
- Going to three XW Pro 6848 inverters
- Two SCP controllers
- One AGS
- One Insight Facility
- Batteries are twelve EG4 LifePower4 batteries organized into two strings of six
I unplugged the data cables for the slave batteries and unconnected and reconnected the battery data cables from the Insight Facility and master batteries and then ran through the device detection process a second time. Both battery BMS’s were detected. I reattached the data cables for the slave batteries and they did not add to the BMS string as they did in the EG4 LL V2 portion of the video put out by Signature Solar.
I had the inverter’s battery settings configured to: Li-Ion, BMS, SOC controlled.
When the well pump kicked on this morning the starting load appears to have triggered a fault that the batteries were over discharged. This in turn shutdown the inverters. I believe the problem is that the BMS control for the inverters is only detecting the master battery on the first string. This seems to be confirmed by reverting the inverter battery settings from BMS and SOC enabled to 2 stage and SOC off.
Questions:
1. How do I get the BMS’s to see all the batteries?
2. BMS #1 dropped offline on its own. I disconnected the pin block from the Insight Facility and BMS #2 also dropped offline. I cannot get the Insight Facility to redetect the batteries. How do I get the Insight Facility to redetect the "Offline" Battery BMS's?
Thanks,
Matt