question

Jeffery and Carolyn avatar image
Jeffery and Carolyn asked

BMV 712 and 24V DC / 120V AC Quattro with Cerbo GX

We have a 24V DC Quattro 110-120V AC Inverter/Charger and want to be able to shut off charging from the Quattro to the non-Victron lithium batteries when the temperature drops below a certain point. The system also has a CerboGX and BMV-712 wired in. The Quattro temperature sensor is connected to the 24V battery pack and we have a second temperate sensor we can connect from the BMV-712 smart shunt to the batteries if needed.

Currently the Quattro only measures high battery temperatures as we under stand it. Is there a way to get the relay in the Quattro to disconnect Quattro battery charging if the temperature drops below a certain point?

Thank you for your help with this.

Temperature Sensortemperaturetemperature compensationTemperature Alarm
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2 Answers
klim8skeptic avatar image
klim8skeptic answered ·

You might want to read up on DVCC .

You can enable STS and program the quattro to stop charging below 5c.

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Rob Fijn avatar image
Rob Fijn answered ·

Hello, there is an BMS assistant that can switch OFF the charging of the Quattro. This uses one of the sense inputs. So you need an external Temperature sensor with a Dry Relay contact, this contact is then a "No Charge" signal for your Quattro.

Hope this helps,
Rob

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