question

Roel Broersma avatar image
Roel Broersma asked

Bug? Phoenix Smart 12/xxx doesn't remember state (On/Eco/Off) after shutdown.

Hello,


When having a Phoenix Smart 12/xxx connected to a Cerbo GX. Having the hardware switch on the Phoenix Smart 12/xxx set to ON (or ECO). Then setting the Phoenix Smart 12/xxx to OFF using the Cerbo GX GUI (GX touchscreen).


Now, when you remove the power from the Phoenix Smart 12/xxx and then turn the power back on. The Phoenix will go to it's hardware-switch state. Which is ON, which is using about 40-50Watt power.

It happened me a few times that there was a power outtage.. the power came back and a few days layer the battery was flat... all because the Phoenix thought it was neccessary to go to ON state.


So, you would say: Then put the hardware switch OFF. Well, when you put the Hardware switch OFF, you can not control it anymore from the Cerbo GX.


So a solution should be: When the Phoenix is set to ON or ECO with the hardware switch and a state is set from the Cerbo. Let it remember it's state which is set from the Cerbo. I am sure this will happen to you sometime... and then it drains the battery.. Another solution would be that when setting the hardware switch to OFF, then you should still be able to control it from the Cerbo GX, but that's probably not possible (because of hardware/pcb design) and it might be a risk. When doing maintenance and see the switch is OFF, it could be still turned on...



cerbo gxPhoenix Invertercontrol
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2 Answers
elvis avatar image
elvis answered ·

How would a power outage cause the the phoenix to not have power? Your battery obviously has power because you said it eventually went flat. The Phoenix is connected to the battery, nothing should have changed. In addition, the 12V phoenix only consumes 6,7, or 8 watts in a no load condition. If you have things connected to the Phoenix output, turn those off when not in use.

As far as you suggestion, What happens if it gets locked in an off state when you remove power and cant have access to the cerbo for whatever reason? Useless inverter is what happens. The inverter should follow the switch position on power up.

Or

I don't understand your situation.

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Roel Broersma avatar image
Roel Broersma answered ·

This is the problem:


The Phoenix is connected to a service battery. The service battery can be disconnected using a big master switch.

When the Master switch is turned on, the Phoenix follows it's hardware switch position (ON/OFF/ECO).

Imagine you have (always) turned the hardware switch to ON.

When you now set it to OFF via the Cerbo, the Phoenix switches OFF, so it's not using any power anymore.


Now, when you turn OFF the master switch when you leave the ship, and turn back on the master switch when you come back. The Phoenix is automatically set to ON (eating power... and it's more than 5-8 watts because it's constantly searching..)


The request would be: When the Master switch is turned on. The phoenix should follow it's PREVIOUS state. (which is OFF).

In case you lose connectivity to the Cerbo and want to turn it on. Just use the hardware switch on the Phoenix to turn it OFF, then turn it ON.


Long Story Short: Always have the Phoenix return to it's PREVIOUS state when having power. Unless you turn the Hardware switch OFF (and probably back ON or to ECO).





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