Hello,
I’m a solar rookie and I’m almost ready to fire up my first system on my RV conversion project (fingers crossed).
I’m running 1260 watts of solar (six 210 watt panels), a 24 volt battery bank consisting of 16 LiFePo4 CATL 3.2 V 271 ah cells, Victron 150/60 MPPT, Victron 24/3000/70-50 Multi Plus, Orion 24/12 DC/DC converter, Electrodacus SBMS0 mainly to keep the cells balanced.
I have not hooked up the batteries yet or performed the initial Multi Plus firmware update and related firmware setting changes.
I came across a video that showed the Multi Plus firmware settings.
I reviewed the Victron Multi Plus Service Manual document and it does not provide the specific information related to each option that I expected would be necessary and important in order to make sure each setting is setup correctly for safe and successful functioning. Many of the settings I couldn't even come up with a reasonable guess as what to enter.
If anyone has ever setup a similar Victron Multi Plus and LiFePo4 prismatic battery system would you be kind enough to provide the Multi Plus settings which are working successfully for your system?
I know there are a lot of setup sections and I apologize for this HUGE ask, but since Victron components and these CATL, EVE, Lichen prismatic type batteries are so popular, I”m sure many others will also benefit from this information too.
Multi Plus Firmware:
General Tab Setting Options:
System Frequency
AC1 Input Current LImit
Current Limit Overruled by Remote
AC2 Input Current Limit
Overruled by Remote
Dynamic Current Monitor
Battery Capacity
State of Charge When Bulk Finished
Charge Efficiency
Grid Tab Setting Options:
Accept wide input frequency range
UPS Function
AC Low Voltage Disconnect
AC Low Voltage Connect
AC High Voltage Connect
AC High Voltage Disconnect
Country/Grid code standard
Inverter Tab Setting Options:
Inverter Output Voltage
Ground Relay
DC Input Low Shutdown
DC Input Low Restart
DC input low pre-alarm
Low SOC shut-down
AES
Start AES when load lower than
Stop AES when load higher than
AES type
Power Assist
Assist current boost factor
CHARGER tab settings options:
Enable Charger
Charge Current
Absorption Voltage
Float Voltage
Repeated absorption time
Absorption time
Charge Curve
Lithium Batteries
Storage Mode
Use equalization
Weak AC Input
Stop after excessive bulk
AC INPUT CONTROL tab settings options:
Conditional AC input connection
AC Input connection based on load
Connect when load is higher than
Delay before connection
Disconnect when load is lower than
Delay before disconnect
Battery Conditions:
Connect when SOC drops below
Connect when battery voltage drops below
Delay before connection
Disconnect AC input on
Disconnect when voltage is higher than
Delay before disconnection
Thanks, Greg
