Hi, I have set up VRM to send me Warnings and Alarms and I often receive High DC Ripple Warnings that typically last for no more than 20 seconds. Investigating VRM I note these warnings often happen when drawing only moderate grid power (eg 1KW on a 3KW Multiplus) and an archived post on this forum suspects DC Ripple warnings could be due to intermittent heavy DC loads. At the moment of a warning yesterday, the “System - Battery Voltage and Current” graph indicates drawdown from the battery of only 2A but the “VE.Bus DC Voltage and Current” graph indicates a momentary current of -80A, any explanations would be helpful. My inverter is a Multiplus 12/3000/120-16, firmware version 413 and VE.Bus version 2609413. I note that Victron advise not to update the firmware unless you have a problem but I think v413 must be quite old now, should I upgrade to the current version? Thanks in advance.
Yes pls upgrade to 552
Good morning,
Did the firmware upgrade solve your ripple alarm or is it still coming now and then with heavy loads?
If so, can you show that in a graph from VRM?
See this topic also, VDC ripple improvements
Regards, Jeroen.