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love2learn avatar image
love2learn asked

Time delay inverter power off/on?

It's there a way to shut down my Multiplus 24/3000 for x amount of time and then have it power on again? If I manually turn the inverter off, it will take out Starlink, so I wouldn't be able to get back in to turn it on. Is there a way to turn it off for say 8hrs and then have it power back on after those 8hrs? Going through Cerbo GX/VRM. Thanks in advance!

Multiplus-IIVRM
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3 Answers
Kevin Windrem avatar image
Kevin Windrem answered ·

Nothing built in to Venus OS however if you have unix knowledge you can set up a cron task to send dbus commands to turn the inverter on or off at specific times.

The following commands can be put in bash scripts:

to turn inverter off (multiOff.sh)

#!/bin/bash
inverterService=$(dbus -y com.victronenergy.system /VebusService GetValue | sed s/\'//g)
dbus -y $inverterService /Mode SetValue 4

to inverter on (multiOn.sh)

#!/bin/bash
inverterService=$(dbus -y com.victronenergy.system /VebusService GetValue | sed s/\'//g)
dbus -y $inverterService /Mode SetValue 3

Then set up cron to execute each at your desired times.

There is much available about cron on-line so I won't repeat it here. Google is your friend.

4 comments
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love2learn avatar image love2learn commented ·
Yes I'll go the Unix route! Right on! Thank you very much!
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kevgermany avatar image kevgermany ♦♦ love2learn commented ·
Just one problem with Cron - it doesn't check for successful execution. So you're better executing a script that can check, resend etc. And this still won't play catch up if the system is down at execution time.
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love2learn avatar image love2learn love2learn commented ·
Is this done on the Cerbo GX or the Multiplus? How do I console into these systems (not using a R-Pi)? I found your post with the guiscripts, but that thread assumes prior knowledge on how to get to a Unix console for those systems. Are you saying that I can setup a cron job on the Cerbo/Multiplus, or would that cron job have to be configured on something else like a R-Pi or laptop connected via USB?
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love2learn avatar image
love2learn answered ·

Perhaps there is a setting within VE.Configure that I'm missing?

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Alexandra avatar image
Alexandra answered ·

@Love2Learn

You could use the relay on the GX for generator timed run. Connect it to the remote switch H (see appendix A) to switch on and off.

I have not personally used it, but it was something I had looked at a while ago for something.

The other way it to have the loads on ac out 2 on off conditions set with use the programmable relay signal on aux 1 or 2 or temp input signalled from the relay on the gx using the generator timer again. Have AES enabled, it will not be off but in a low power state so will still save power.

Just some ideas. May need a bit of a fiddle to get it right.


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