I have SMA - Sunny Island inverter, the one that is use in Off-Grid Solar PV System.
I am getting error because there is no Battery Temperature Sensor connected.
I have a plan on buying the dedicated Temperature Sensor for this inverter but for the mean time I want to create a substitute for this sensor because I am chasing the deadline.
This is the picture of their Battery Temperature Sensor
and this is where it must be connected
I don't know what's the circuit inside their Bat Temp Sensor but looking at the inverter where it is going to plug, it says that it has 4-pins, 2-pins for battery temperature and the remaining 2-pins is for battery current.
Do you have an idea on what their battery sensor diagram looks like?