Hi all,
I want to start my washer dryer automatically when batteries are at 100% charge level and switch the appliance off when the battery reaches say 65%. Is there a relay or some Victron equipment that I can connect to my Lynx BMS?
This is a Lynx BMS with Cerbo and a bank of Victron lithium batteries in place, charged with solar panels via Victron MPPT
You could use node red on the cerbo and use the relay 2 on the cerbo to drive an external relay in the AC circuit feeding the appliance.
Another option is to have the appliances you want to control by SOC on ACout 2 and use an assistant in the inverter to drive the ACout 2 relay.
You could also use the Generator "Auto function" start/stop relay. have a look at https://www.victronenergy.com/media/pg/Cerbo_GX/en/gx---generator-auto-start-stop.html then also the chapter on Conditions" ... Since you are going to need an additional contactor(relay) to switch a "heavy load" you could wire reverse logic of the generator conditions. (...normally you want a generator to start on a low SOC and stop on a high SOC. However, in your case you want to start your load on a High SOC and stop on a Low SOC).
If your instalked solar oaneks are much bigger then the total loads on the system you can akso use the relais in the SmartSolar.
I have now 1860Wp plus 4100Wp of Solarpanels and have a continious load of only 300W on the system, hence my Batteries with 2840Ah (24V) are very fast full. I have configured the relays on the SmartSolar to switch on, if the Battery is in Float and heat up a Boiler. I have also set a minimum switch on time of 4 hours. (4 hours with 24V/1000W heating element increase the temperature of a 200l boiler by roughly 16°C).
Parallel I run a preprogramned washing machine which take only 90min.
Hence no extra functionality is needed.
