I have a MultiPlus 12/2000 in our RV. We have an imbalance issue with our lithium cells that causes an overvoltage condition when absorption charging. Obviously this is not an issue when inverting off the house bank, but connecting to shore power and setting the inverter "On" (in order to energize the relay that connects the MP's AC input to the AC output) also inevitably turns on the charger, eventually tripping the OV relay and shutting down the whole rig. The cell balance issue will get resolved in time, but meanwhile I would like to be able to use shore power.
I see that someone else asked about this issue here, and was told they could use an assistant to set the charge voltage to 0V. I looked in VE.Config and found the "charge current assistant". This seems to allow me to set the charge current to 0V, but also allows "disabling the charger when the charge current should be zero". Does anyone know whether to check this box; i.e., whether disabling the charger would also disconnect the passthrough relay?
Does MultiPlus II "requires" additional AC feed (input) protection for shore?
I am thinking of additional breakers and/or EMS like Progressive Industries that protect against open/short, surge, under-voltage, etc, etc.
I see most design connecting the shore inlet directly to the MultiPlus but I see so many things that could go wrong, not to mention someone with bad intentions trying to "fry" an inverter from the outside.
Any input greatly appreciated.
I have installed a Multiplus II on my boat. I also have solar panels connected through two MPPTs, and a Smart Shunt connected to the house battery bank (5 - 12V AGM batteries). The system is connected to a Cerbo GX with a touch 50.
My question is this: Is there an easy way to prioritize solar power over shore power when the boat is connected to shore power?
I have seen many posts from a few years ago but there seems to be no clear answer. The ideal situation would be when the sun is shining the batteries remain at 100% SOC and the solar powers the boat. If the load exceeds the solar output, the Multiplus II would make up the difference using shore power.
I look forward to hearing back from the community.
Can the Skylla-i charger use modified mains power?
The marina’s available shore power is 110v 60Hz.
My boat is wired as 220v 50Hz.
Normally I don’t plug in to shore power if they don’t have 220v 50Hz. Here, someone has handed me a custom-made power adapter that takes the shore power and puts 110v on the line and neutral conductors. So, neutral to ground measures 120v, as does line to ground, and 220v line to neutral.
My limited understanding gives me pause to use this custom adapter because I think the Skylla-i expects zero volts across its neutral to ground conductors.
Is the custom adapter a no-no? I worry it could damage my charger (and other items on my boat).
The green Power light is always on even when not connected to AC Power. It this proper? I see no mention of this in the manual. IP67
Hi Folks. Im running an MP2 3kVa with a single Pylontech US3000C (I unrestand this battery is undersized but it's a slowly ever growing system). I've noticed that even with a grid set point set at 0w, and VRM shows a zero grid import, a clamp meter over the incoming supply indicates a 0.55A (230v) draw. I can only assume this is for grid synchronization purposes. Now, my load on this inverter averages pretty much just about that.
So question is, im going to seperate my loads further so that loads will never exceed max discharge current of the battery and essentially have them run off grid (ie disconnect the AC input from the inverter). But is there a way I can have the AC In disconnected from the inverter when SOC is 20% + and only have grid reconnect when battery reaches the 20% without any external components? I think this can be done by using the external relay connected to a contactor of sorts but can this not be done using an assistant?
I have two Quatros configured in a split phase configuration so that I can run 240V appliances in my RV. All works well on shore power when I am plugged into 50Amp service which is also coming in as 240V split phase from the grid. At the moment all I can do is run in Invert mode, including no charging, if I don't have the 50Amp service that is 240V split phase.
My challenge is that some of the newer parks are actually providing 50Amp but from a 3 phase grid source, so basically 208V across L1 & L2.
In addition some older parks only provide 15/20/30 Amp service which is just single phase.
Can someone tell me what the best way is to get my RV to accept any type of shore power please.
Also, in researching this someone suggested I change the configuration when I set the systems up to use "L2 float" or "L2 float and return to original phase" but I can not find any documentation on exactly what that would do differently than what I currently have as "L2 fixed".
Can someone point me in the direction of the documentation from Victron that explains the differences.
Thanks in advance
I have a new Victron multiplus installed in my boat. Connected to my 5 KW Diesel Generator all works perfectly. But connected to shorepower, the main shorepower fuse on the boat and on the quai is blowing. I already tried a direct cable from shorepower to the AC Input of the Victron. No change
On my boat I have a 12v 500ah lifepo4 battery bank, When plugged into shore power the 60a 240v AC charger is set to 13.4v float and 14.4v absorb, I also have 2 x MPPT smart solar controllers connected to 2 separate panels 415w and 140w and the controllers are also set to 13.4v float and 14.4v absorb.
When my battery is in float mode at 13.4v from being on shore power I find that when the sun is feeding panels in the morning daylight the MPPT controllers go into absorb mode raising the voltage to 14.4v for a few hours then back into float mode of 13.4v for the rest of the day.
My question is should I set both the float and absorb voltages to 13.4v on the MPPT controllers?
The AC shore power at the marina is unreliable and is often tripped so I rely on solar as a back up
My system is on a boat with a MultiPlus Compact 12v/1600va/70a and a digital multi control panel.
I have 4x175w Victron PV panels connected to a Victron 100/50 MPPT controller.
My understanding is that both the multiplus and the mppt are both charging the battery bank simultaneously whilst connected to shore power. Can I turn off battery charging on the multiplus so that batteries are charged only using the solar power via the mppt?
I need AC shore power whilst in the marina so can’t turn the multiplus off completely.
I labelled my Quattro AC input 1 as ‘shore power’, then set up an alarm rule on my CCGX where all input labels (not available, grid, generator, shore power) were enabled.
When I disconnected my shore power, the CCGX and VRM gave me ‘grid lost’ alarms. I acknowledged the alarm on the CCGX and reconnected shore power but it took a reset to clear the CCGX, and I can’t clear it on the VRM.
I’ve tried deleting the rule and setting up a new one, re-labelling my input as ‘grid’ to see if that’ll clear it - no luck.
Any advice appreciated - would like to clear from the VRM.
I want to connect two existing systems together
3 x 15KVA Quattro
4 x 250/100 MPPT
2 x 30kWh Freedom Won Lithium
1 x 45KVA Generator
3 x 10KVA Quattro
2 x 250/100 MPPT
2 x 15kWh Freedom Won Lithium
1 x 30KVA Generator
These two system are 100m apart and I know they can complement each other with excess power by sharing it between each other via an AC cable acting as a 'grid'
Maybe connect output1 of system A to input1 of system B and vice versa. Then both generators to input 2 (separately per respective inverter)
I'm living on my sailboat, equipped with a Victron Quattro 12V/220V/3000W and a marine Genset. I'm actually trying to find a way to start my diving compressor, which is a 220V single phase motor 2.2kw, his starting current peak is about 45A.
My genset is a small model, and himself He's not able to provide enough to compensate the Starting peak current demand. So i connect the genset with the Quattro and in theory the genset power + the power assist should be enough to start this diving compressor. But it's not working, i first believe it's because my genset is really to small, but in fact not. See below another test i did and please if you have any suggestion don't hesitate to answer.
When i connect this diving compressor directly to the 220V/16A outlet of the harbor, the diving compressor start and run perfectly.
When i connect this 220V/16A outlet to my "AC in" of the Quattro and the diving compressor is connected to the "AC out", the diving compressor is not able to start! If I'm right, the Diving compressor should be able to start as the Harbor outlet is able to do it, and at least if a little Amps is required for the starting peak, the Quattro should be providing it and the total of this both current should allow the start of the diving compressor. But it's not doing it, I can just hear the Diving compressor motor "growling" but not more!
Do you know if there is any parameter(s)that i should adjust in the Quattro, to allow the full Shore outlet going into the AC out, or if there is a "protection timer" to adjust or something like that ?
Because actually i don't understand if the Quattro is absorbing power of the outlet shore and from that the AC out is not strong enough to start my compressor. Or if the Quattro is stopping the current by the configuration of a thermical protection, timer protection or any "protection" that limit the AC out !
Thank you very much for all the suggestions and ideas that you can offer.