I'm planning to heat a little my Pylontech batteries during winter by means of some terrarium heating mats. It is possible to set the alarm rule into the VRM system that check the battery temperature and it is possible to set the relay1 of the Cerbo on the alarm function, to activate some external relay and feed in the mats. But it seems the realy1 doesn't trigger when the alarm starts. Does the relay1 alarm function responds to VRM alarms? Thanks
You need to program the relay in the Cerbo itself, not VRM. It can work of temperature sensors, I am not sure if it can pick up the Pylontech temperature or if you will need to add a hardwired sensor or Ruuvi sensor to the Cerbo to independently measure the battery temperature.
Ok. The "temperature function" of the relay1 it works with an external sensor but it isn't clear for me what kind of alarm is required to trigger the relay1 in "alarm function".
