Batrium CANbus critical faults only, no charging control. Possible?

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FirstAscent

New member
Joined
Dec 20, 2021
Messages
5
Hi everyone,

New here to this site, wondering if any of you more seasoned Batrium users can help me identify if this is currently possible.
I'll get the main question out of the way first with details to follow:

Q:
Is it currently possible to for the Batrium to send critical faults over CANbus to Victron equipment only, but NOT control the charging/discharge parameters?

Background:
I have a Watchmon Core (with blockmon's) currently communicating with my Victron MPII inverter through my Cerbo GX, over CANbus. It will control charging/discharging as set, and react to my test critical faults as it should (ie. low temp disconnect stops charging).

My preferred method would be for the Batrium to be my last resort, and to monitor individual cell voltages, but I want my Victron equipment (Inverter and MPPT) to control the charging profile to however I set. As mentioned, the Batrium would be there to monitor individual cells, temperature etc, and send a critical fault over CANbus if anything got to that point.

I know the Batrium has various outputs you can hardwire to devices, but I want to do this over CANbus so I only have the one pair of wires for any/all faults, monitoring, etc.

In my testing so far I haven't seen how this would be possible as the critical fault control only can be enabled along with charging/discharging parameters active as well.

Thanks everyone!

-Jaime
 

slimf

Member
Joined
Sep 26, 2017
Messages
203
A critical fault warrants disconnection, not a reduction or cessation of charging/discharging.

Your watchmon should already be reducing or stopping charge/discharge at levels less critical.
 

FirstAscent

New member
Joined
Dec 20, 2021
Messages
5
A critical fault warrants disconnection, not a reduction or cessation of charging/discharging.

Your watchmon should already be reducing or stopping charge/discharge at levels less critical.
when you say disconnection do you mean a physical disconnection, such as a shunt trip?

In the case of a low temp disconnect 'alarm', I wouldn't want to trip a breaker, only stop charging.
 
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