mkaye
New Member
- Joined
- Mar 23, 2020
- Messages
- 277
i installed a balancer and missed the ground connection for the external power to the BMS
BMS still worked as it was finding ground on the sense leads
reconnected missing lead
issue is, i turn on my converter and BMS opens the discharge relay within 2s (before & after missing lead)
converter is connected to discharge bus @ dc distribution panel
ran temp wire from converter to charging bus (not connected to discharge bus) - no change
converter supplies about 30A
i had all my solar connected and the alternator yesterday and had 35A - so i don't think it is an overcurrent issue
i watch the cell voltages when i turn on the inverter and they don't change - <10mV difference
since it is opening the discharge relay it must think there is some issue with low voltage
i am going to do a factory reset and reload the firmware
balancer is disconnected doing all this
factory reset/reload firmware - same issue
charging with solar now 16-20A, no issues
BMS still worked as it was finding ground on the sense leads
reconnected missing lead
issue is, i turn on my converter and BMS opens the discharge relay within 2s (before & after missing lead)
converter is connected to discharge bus @ dc distribution panel
ran temp wire from converter to charging bus (not connected to discharge bus) - no change
converter supplies about 30A
i had all my solar connected and the alternator yesterday and had 35A - so i don't think it is an overcurrent issue
i watch the cell voltages when i turn on the inverter and they don't change - <10mV difference
since it is opening the discharge relay it must think there is some issue with low voltage
i am going to do a factory reset and reload the firmware
balancer is disconnected doing all this
factory reset/reload firmware - same issue
charging with solar now 16-20A, no issues
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