Low VIN error even with "Alarm low = no"

There is a difference between Low error, and Low alarm. 

Low error is indicating the measured value is too far below the Min calibration point, indicating an electrical fault (or calibration problem). For example open circuit or no supply voltage to the sensor. 

Low alarm is from the threshold set in the application to warn when the signal is measured correctly, but the value is too low. E.g. low fuel level. 

I wrote a small knowledge base article to give a better explanation of the input statuses

https://forum.iqan.se/knowledge-bases/2/articles/2357-vin-and-vin32-status

Thankyou Gustav!

That is very helpful.