I have had the RS 450 100 running for 4 months on a 327 volt panel string. Today i have connected a second string 444 volt and received a ‘short circuit alarm’ followed by ‘error code 200 dc voltage error’.
There does not seem to be any reset for this error?
Is this something that can be repaired or is a new charge controller required?
Any assistance appreciated Thx.
If you have done the few steps here in the manual and it has not cleared and is not working it will have to be returned for a warranty assessment.
Other steps here for pre rma test bench instructions.
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I have two out of two of these on RS 450 200 - one it UK after a few months of proper operations, one in Spain after less than a day (worked well during daylight, but blew up around 1am).
In both cases battery charging was coming to an end (say 97% charged). I read somewhere that it is probably Multiplus || blowing them up (10kW in UK, 8 in Spain) if batteries’ BMS switches them off. In Spain I have 2xPylontech 5000 and Multiplus || + CerboGX work well with them in peak shaving mode, just without solar panels - topping up batteries from the grid.
In UK I have 3xFogstar Energy 5kW. Remember one distributor saying how he had these complaints very rarely until one day he started getting a lot of them. A number of users reported them also and problems happen towards the end of the day or during dark. I believe that Victron admitted some design/manufacturing issues with a batch of substandard quality components, but mostly on RS 450 100.
Any insight into all of this as in my case both distributors are professional, but Victron doesn’t appear to be in a hurry (especially in Spain) to do something to repair the units.
Forgot to say: while trying to remedy this I tried all the official firmware release for MPPT - no change (solar side voltages are correct all the time, it is just that otput power is mostly zero or just a few watts.
However, when I updated UK’s Multiplus || firmware to the latest version it started showing tidy report of the data it was getting from BMS - prior to this: battery voltage was ok, temperature also, but the current was shown with the wrong sign)