March 12, 20242 yr GOOD DAY I HAVE A GROWATT 5KW INVERTER SETUP WITH A DYNESS BX51100 BATTERY AS BACKUP WITH NO PV. THE SYSTEM WAS INSTALLED ABOUT 6-8 MONTHS AGO. ALL SETTINGS WERE FINE AND COMMUNICATION WITH BMS AND INVERTER WORKING WELL. THE SYSTEM WAS RUNNUNG PERFECTLY. A DAY AGO WE HAD A PROLONGED POWER INTERRUPTION, AND SINCE THEN THE BATTERY IS NO LONGER GETTING CHARGED. THE INVERTER READS 1% SOC OF BATTERY AND KEEPS GETTING ERROR CODE 04. THE BATTERY WHEN TURNED ON JUST BEEPS, ALL THE SOC LED LIGHTS FLASH FOR A SECOND AND THEN GO OFF, AND THE ALARM LIGHT GOES ON ON BATTERY. WHEN THE SYSTEM IS ON AS USUAL, THE ESKOM POWER GOES IN, BUT BATTERY DOESN'T CHARGE AND THE SCREEN ON THE INVERTER SHOWS THE EMPTY BATTERY TRYING TO SUPPLY THE ESSENTIALS WITH POWER, INSTEAD OF ESKOM POWER CHARGING THE BATTERY. ANY HELP WILL BE GREATLY APPRECIATED. REGARDS
March 12, 20242 yr 10 hours ago, ahmed h said: GOOD DAY I HAVE A GROWATT 5KW INVERTER SETUP WITH A DYNESS BX51100 BATTERY AS BACKUP WITH NO PV. THE SYSTEM WAS INSTALLED ABOUT 6-8 MONTHS AGO. ALL SETTINGS WERE FINE AND COMMUNICATION WITH BMS AND INVERTER WORKING WELL. THE SYSTEM WAS RUNNUNG PERFECTLY. A DAY AGO WE HAD A PROLONGED POWER INTERRUPTION, AND SINCE THEN THE BATTERY IS NO LONGER GETTING CHARGED. THE INVERTER READS 1% SOC OF BATTERY AND KEEPS GETTING ERROR CODE 04. THE BATTERY WHEN TURNED ON JUST BEEPS, ALL THE SOC LED LIGHTS FLASH FOR A SECOND AND THEN GO OFF, AND THE ALARM LIGHT GOES ON ON BATTERY. WHEN THE SYSTEM IS ON AS USUAL, THE ESKOM POWER GOES IN, BUT BATTERY DOESN'T CHARGE AND THE SCREEN ON THE INVERTER SHOWS THE EMPTY BATTERY TRYING TO SUPPLY THE ESSENTIALS WITH POWER, INSTEAD OF ESKOM POWER CHARGING THE BATTERY. ANY HELP WILL BE GREATLY APPRECIATED. REGARDS The battery has switched off due to too low voltage. These have a BMS that switches off at SOC of about 20%. You need to manually charge the battery before it will switch on again.
March 13, 20242 yr Author HOW DO I SAFELY DO THAT WITHOUT PANELS? WHY DOES THE GRID NOT CHARGE IT UP AS USUAL THROUGH THE INVERTER?
March 13, 20242 yr 28 minutes ago, ahmed h said: HOW DO I SAFELY DO THAT WITHOUT PANELS? WHY DOES THE GRID NOT CHARGE IT UP AS USUAL THROUGH THE INVERTER? Because the battery BMS switched the battery off. No power can get into it. This is done because the battery went below the minimum safe level. The BMS does not know if the battery is perhaps left for months not having to provide power. Think if it was in a holiday home. You have to ensure that the inverter disconnects load before 20% SOC to prevent this. You will have to jump start the battery to get the BMS to see a high enough voltage to switch on. Error code 04 tells you the voltage is too low and you also indicated it is only at 1% SOC. Edited March 13, 20242 yr by Scorp007
March 13, 20242 yr Author THANKS FOR THE ADVICE. WHAT IS THE SAFEST WAY TO ACHIEVE THIS "JUMP START "
March 13, 20242 yr 41 minutes ago, ahmed h said: THANKS FOR THE ADVICE. WHAT IS THE SAFEST WAY TO ACHIEVE THIS "JUMP START " The safest way to do this is with a 60V 5A adjustable power supply with current limit. Set the power supply to 48v and gradually bring up the voltage until the Bms resets. You will draw 5A if the Bms resets. Leave it for 30 minutes disconnect the supply and fully charge with inverter. Do not use another 48v battery!! Below power supply from Electromann in Jhb. https://electromannsa.co.za/shop-the-latest-affordable-gadgets-online/wanptek-nps605w-0-60v-dc-0-5a-300w-adjustable-digital-dc-power-supply-2/?gad_source=1&gclid=Cj0KCQjwncWvBhD_ARIsAEb2HW998IjA6-Y4Hgk5vDmXcHfgL0GT5aV3FBxJYnFdJ8kjOZ3G8JiWbF4aApWlEALw_wcB
March 13, 20242 yr ......Set the power supply to 48v and gradually bring up the voltage until the Bms resets. Can you do that with another battery?
March 25, 20242 yr Author HI. CONTINUING ON THE ABOVE ISSUE. I FOLLOWED THE RECOMMENDATION TO GET THE BATTERY CHARGED WITH A 48V CHARGER. THE BATTERY IS NOW OUT OF PROTECTION MODE, HOWEVER THE SAME ISSUE EXISTS. THE INVERTER DOES NOT SEND CHARGE TO THE BATTERY. THE HOUSE DOES'NT GET POWERED WHEN IN INVERTER MODE. MY SCREEN SHOWS POWER ARROW FROM ESKOM TO HOUSE, AND FROM BATTERY TO HOUSE, BUT MY AVS PROTECTION LIGHTS STAY RED IN INVERTER MODE.. IN GRID MODE THE AVS WORKS FINE AND THE HOUSE GETS POWER. IS IT LIKELY A FAULT ON THE INVERTER??
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.