All Questions

Bonjour à tous !

Je voudrais réduire la consommation mensuelle des data sur VRM, j'utilise un VENUS GX et un GSM GX.

Les paramètres configurées sont : mises à jour auto désactivé, intervalle entre journal 4h : pour ce paramètre, j'ai comme l'impression que VRM d'actualise toutes les 10min malgré le fait d'avoir mis à 4h.

Merci d'avance pour l'assistance.

I have just received my first lithium battery (12V/60Ah lithium super pack) to power electronics at my Hobie fishing kayak. I'd like to place battery under my seat for safety purposes, but in that case it needs to be put in on its side. Manual and Victron tech support just says it needs to be upright, but trying to learn why? In normal circumstances I draw out about 1,5A/hour and recharging can be done in uprigt position. Really wanting to know problems what sideways installation could cause as that placement of battery would be ideal and not making my kayak too bow heavy if battery needs to be added in bow box and increase risk of tripping over in tail waves.

Looking forward to hear your comments about this case.

Antti Kymäläinen, Hobie fishing team, Finland

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I'm wanting to fast switch a 1kw AC load (hot water heater) to be effectively 500w at a rate of maybe 20-50 times per second using SSR and arduino.

Will this fast load pulsing on/off damage the inverter (Multiplus 3ooo) in any way?

My bmv has been showing me a voltage of -0.01 with 0 amps and doesn’t show when I’m getting solar power. I plug the Bluetooth into my Victron mppt controller and it shows the correct amps coming from the sun and correct volts.

I’m looking for a way to maybe reset my bmv in hopes that will fix it but maybe there’s another solution out there.

I’ve had this bmv for a year and a half no issues btw.

I have a Smart Solar 150/35 mppt solar controller and I am trying to find the best combination of panels to fit to the roof of my 7m Bus RV. 1.8m - 2m x 1m panels would be ideal to reduce the mounting hardware required. I have used the calculator Victron provide but I am a little confused by the results as I only get a choice for series & parallel panels. I cant just select one or the other, it has to be a combination. The panels I am looking to use are 365w Jinko Panels JKM365M-66H. The calculator says I can use 3 in series and 1 in parallel. Is the 1 in parallel wired in parallel to the 3 panels in series ?

We have a new set-up (<3 weeks) with two Quattro 8000/200/100/100 24v 230 set-up to run in parallel linked to CCGX and Lynx BMS Control for MG Energy LFP batteries. Both units have been upgraded with v465. CCGX is upgraded to latest release.

Since day one we have spurious L1 Overload on Master Unit and usually concurrent to the event a load buzzing and the Slave unit is appears to be OFF with no fault when fault appear. No overload warning. All the incidents happened in light or no load conditions.

We have witnessed one incident with no load connected to the output of the quattros. The two outputs were cross connected at the time of the incident. We measured current spike between the two unit when this happened. It would seem that either the units are getting out of sync or one of the two unit is short circuiting causing the other unit to overload.

We have replaced the cross connecting Ethernet cable with brand new patch cable with no appreciable improvement.

Any Ideas, suggestions ?

Hi

I have a 5.5kW diesel generator to charge my 48kWHr OpzV battery bank in times of extensive cloud cover. However, when the generator output power reaches circa 4kW the Multiplus keeps disconnecting the genset, then reconnects after a few seconds, then disconnects again even though battery bank charge level is at 60% and minimal sunpower from the Victron charge controller MPPT 250-100. Is there a setting to spill the excess power and keep charging the batteries? I would have thought this would occur automatically?

Thanks for your advice

Clive

Any idea of what could cause this error message : 'inverter on' flashing and 'overload' lit. This happens as soon as I switch on the inverter, even with the AC out cables disconnected. If I let the unit disconnected from batteries overnight, I get about 2 minutes of 'inverter on' lit, no overload alarm and then, again without load, I go back to same error status. I have opened up the unit after the problem occurred and visual inspection of all components offers no clue. Connecting other battery gives same problem.
Any lead? Many thanks.

This is a 2012 unit on a sailboat. It has worked fine till now.

Hey everyone I’m hoping you may be able to assist me in the correct configuration. It’s doing my head in trying to get it to work correctly.

I have the following setup.

2kw Solar to 150/85TR Smart solar

Multi-plus II 5000/48/70

Venus GX

500ah battery backup.

8aH load per 24hrs roughly

what I essentially want to achieve is that the solar runs loads and charges batteries to float during the day.

During the evening the load is powered by batteries down to 60%SOC (save capacity for grid outage) then reverts back to AC input to power the load and recharge the batteries to say 75% then the next day when the solar is back it gets the system back to float.

I know that the UPS function works seamlessly from bypass to Invert modes, but does it also work from invert back to bypass without dropping the loads? Is that even possible?

I have tried the ESS assistant and also Hub 1 and even the VS but it just doesn’t seem to work.

Any help would be greatly appreciated

cheers

Tim

I am connecting a Venus GX to 4 x 150/100 MPPT VECan solar charger controllers on a positive ground 48v bus system. The GX controller is running off a seperate 12v power supply via an Orion isolated DC/DC charger. Do I need to use a canbus isolation module between the GX and the MPPTs? I am presuming not, but thought I would check.

Cheers, Derek

I'm looking at a description of the Cyrix Battery combiner and I would like to confirm if this device can be used for protecting the MPPT from reverse current from the battery.

MPPT data sheet does not explicitly mention reverse current protection from the battery side (but mentioned for the solar side). Does MPPT have its own internal reverse current protection or are diodes necessary to prevent damage from back current?

Hi there,

I currently have a 4WD setup with a BMV-712, 130AH AGM rear battery and 1500W inverter. I have standard 4wd type accessories like a 12v fridge, water pump, lights, 12V outlet for phone charging etc connected through individually fused circuits from a central 6 port fuse block. The total load of everything if everything runs at once (except inverter) is around 13A.

The rear battery currently gets charged from the engine alternator through an electronic voltage sensitive relay connecting the two batteries. At the moment all loads are routed through the BMV 712 Shunt, including the inverter (which incidentally only ever gets used for short periods of time for the sole purpose of making toast!)

I am considering fitting a Smartsolar MPPT 100/20 (or 75/15) so I can go off grid for longer without running the engine and I really like the concept of using the load control functionality to protect my rear battery. I would fit all but the inverter to the load connections on the MPPT (through the single +ve cable that currently runs to the fuse block), and the inverter would remain connected direct to the battery. I turn the inverter on and off manually through its own switch.

The problem is when the battery is under load from the inverter (900W to run the toaster through short length 2B&S cables) the voltage often drops below all the MPPT pre set voltage triggers and would therefore to disconnect the load to my fuse block. When the battery is at a low SOC to start with, the load may never actually be reconnected as it may not recover to above the 'reconnect' trigger voltage.

To avoid this I would like to use the BMV-712 SOC setting to trigger the load disconnect signal, rather than the MPPT inbuilt voltage settings.

I have read several posts and understand that that I can easily use the BMV to control a separate high current relay that would disconnect the battery for SOC triggers, but this seems to defeat the purpose of having the 100/20 and its excellent load connection & control abilities.

From my research I understand that the MPPT VE direct port has 4 pins (1 GND, 2 RX, 3 TX, 4 PWR)

I also understand that the VE direct RX port on the MPPT can be set through Victron connect software to act as either a remote on/off (for the MPPT itself), or as a load output on/off (including an inverted mode) to the load connections on the MPPT.

Where I fall down is working out how to actually achieve this.

I have read that the VE direct Rx port is 5V, and I understand the BMV relay has a COM, NC, & NO connections that can also be inverted through the Victron connect software.

So was wondering if I connect a 5V source to the BMV-712 relay COM terminal, can I then connect the BMV relay NO output terminal (which would also be 5V) direct to the MPPT VE Direct Rx port ? I could configure the MPPT such that when the BMV low SOC triggers, voltage at RX on MPPT hits zero and then triggers the load output to off.

Can I do this with my own wiring (ie BMV NO to MPPT RX, plus an earth cable) at the MPPT - or do I have to purchase the VE direct non isolating cable to make this work ?

Or perhaps my understanding from all my research is flawed and this is not actually achievable ?

I know I could just fit the high current relay, just space is at a premium and I am keen to explore the realms of possibility.

So I finally resolved my last issue with my Smart Solar displaying the correct battery voltage on the main screen but incorrect voltages in the history page.

The first day I ran the whole system (2x Smart Solar 150/100 MPPT, 1x Lynx shunt +power-in/distributor, 2x 12v multiplus 3000 in parallel, and 4x Battleborn Li-Ion batteries) it ran great. Each controller has 8x 100 watt renogy panels (2x set of 4 panels in series ~80v open voltage) per controller. The first day one controller peaked out at 880 watts (it was a very cold day so the panels were more efficient since its rated at 100 watts at 25C), the other controller peaked out at 840 watts. The next day my Cerbo GX and Touch display came in so I shut the system down, plugged in the VE.Can and VE.Bus to the respective units and made the minimum entries into the Cerbo to get it going (IE wifi set up, VRM set up, 400 Ah battery capacity). Ever since then the controller REFUSE to put out more than 75% of the panel rated power, regardless of how many panels I have connected to the controller and regardless of the series/parallel set up (IE 4x in series was putting out 300 watts, 6x in series was putting out about 450 watts, 8x in a 4:2 Series:parallel would put out about 600 watts) and BOTH controller do this.

This has been going on for a week and as more time goes on the VRM logging (every 1 minute) is showing more and more dips through the day even though it is almost always sunny out where I live.

I even shut the whole system down for a day and brought up the inverters and discharged the batteries to about 80% then turned the solar controllers back on, reset them to their defaults, reassigned the battery to Li-ion, and got exactly the same results.

I also don't think the cables running from the solar panels to the controllers are the issue. Each controller has 1 positive and 1 negative running to their own set of panels. Used 10 AWG wiring and the run is around 100 ft from panels to controller. The controller then has 2 AWG to connect to the lynx system and 4/0 for battery/inverter connections.

Does anyone know why when I plugged in my Cerbo GX that the system just basically stopped working at 100%?

Edit:added photos of the history display on both controllers the two lowest peak power days were cloudy but every other day was basically 100% sun.

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Hi Guy

We have a three phase setup installed (three MultiGrid 2) at one of our client’s residential house. We received a call from the client letting us know the system is down, on arrival there were no errors only a down system. We were busy fault finding and an error came up saying phase rotation error. There was a fault from the municipal department the previous day (complete power outage for almost the entire day) we reprogramed the system and confirmed with the municipality that they might have rotated the phases (hesitating to confirm 100%). Now the system is basically working perfectly again but the readings from the colour control does not add up, we are not sure what the fault is but we think it’s the energy meter that got damaged, do you have any advice what the problem could be?

The system is programed not to feed-in excess solarcharger power to the grid but as you can see there is a reading off -2199W (Grid L3). This reading bounces around between the phases and it does not make any sense as the 563W from the grid along with the PV Charger 1962W does not add to the load of 5353W.

Grid: 563W

L1: 2704W

L2: 57W

L3: -2199W

AC Loads: 5353W

L1: 5171W

L2: 181W

L3: 0W

Critical loads: 10W off at that stage (by-pass)

PV Charger: 1962W

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Hi,
I'm starting to design a system for a camper I am building. I am looking into using the Multiplus 24/1200/25 with a Lithium Ion (NMC) battery and I have a lot of questions.

1) For the software, looking at the voltage range the inverter should work with the battery (with a BMS of course). I would rather not have the BMS do the load switching except in extreme conditions, or double failures. It seems like these systems have a lot of configurations but I just want to make sure that things like under voltage shutoff, and charge voltages are all configurable as it isnt clear in the data sheet which settings are configurable. Also I have seen some reference to needing a password to change some of the settings, is this this case?

2) The data sheet says there is a "battery temperature sensor", can this be used to disable charging when the battery temperature is too low? My BMS has this ability, but again I would rather have the inverter switching the load. My BMS will allow charge current between 0C and 45C, so I would like the inverter to only allow charge between 5C and 40C.

3) Finally a common problem I have seen when integrating lithium batteries with inverters in the inrush current welding the contractor on the BMS or damaging the FETs, do these inverter chargers have any pre-charge circuit, or other way to limit the inrush current?

P.S. Is there a programmable shutoff voltage for the Orion 24/12-70? If not can I use the remote on/off with the inverter/charger?

Goodevening,

Have a 24/ 3000/ 70 here, which don,t respond on the dipswitch settings, so after making a setting the up and down button, don,t give any response.

If i look on the mother board front and backsite, looks horrible with all those mods.. ( first experimental victron ? )

I like to lower the output to 230.volt, after changing the burnt toroidal transformers the output is on the high site.

Also like to lower the charge output..

Any ideas welcome

I have already posted this in May but the answer I got there did not help me. I get, that Voltage is not really a good way to measure battery state but still my devices shut of at curtain voltages, and it's the easiest way for me to show the behaviour.

I am using the 700 for 3 months now together with a Raspberry Pi gateway. Everything works fine and I am happy. There is just one problem. How can I set the 0%.? The 14.4V is my 100% and if I use my 160ah battery to 9V It still showed 40% charge. Of course everything else (fridge, GPS...) has shut of at around 11V so that should be my 0% How can I change that? I don't have the BT dongle but can control everything else from the display or the Pi.

My setup

160Ah 12V lithium battery

MPPT 75/15 with 2x120W solar Panels -> connected to pi via Ve.direct USB cable.

230V battery charger

Relay to the camper's starter battery 12V, so I can charge while driving.

BMV 700, the shout is connected between the battery and everything else -> connected to pi via Ve.direct USB cable.

Pi has a backup battery so it does lose power last.

I have a Multiplus 24/3000/70-16 and a BMV702 set up in an RV with two separate battery banks (house + starter).

I noticed today that the AC input had failed, and the Multiplus depleted the house battery bank before entering low voltage shutdown at 24v (full charge is 28.7 volts). However, when I check the BMV702, the starter battery is also showing depleted at around 25 volts.

In VRM, I can see that the trends for both batteries follow eachother, which indicates to me that they are being paralleled for some reason.

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Is the trickle charge connection (or the BMV702) somehow parallelling the battery banks??

I have an Asus pc which is connected all-time in my Victron mppt's

i recently made a format and reeinstalled windows 7 ultimate genuine software

everything in the pc is working flawless, but

when i installed the victronconnect and run it

i get a message " the program has stopped working" and "close the programm"

i cannot run it and get a blank window with this message.

i tried to run it as administrator but, same thing

i saw in properties that victronconnect is running compatible to windows xp sp2

i even changed this to run it in compatibility with windows 7, but same thing.

i even tried to download v4.3 which i had before and was working with no problem but, victron is giving me only v5.19

i even ran a winfix utility for everything in the system but, no glitches no corrupted or missing files and no problems.

i've spended 5 days trying to make it run.....no results

please advise

( i'm having bbq fish to ease my sorrow )

Hello everyone,

as my batteries already twice caused a low voltage alarm (although above 80% SOC) after some days with little sun, I would like to set an alarm for the voltage in combination to the current, i.e. "voltage < 24V while current < 10A". Anybody can think of a possibility to set such alarm or should I send a feature request to Victron?

Greetings from Colombia,

Christian

I have a BMV-602s that has been giving different current readings from the very beginning. IT will give a few hundred mA current reading with no loads attached for some time after disconnecting the loads. Then after some time it will read zero current.

If I disconnect the loads then zero the current reading all is fine for a while then the current will shift and start displaying a charge (due to the zeroing offset).

I have fully isolated the battery cable at the battery isolation switch and searched for parisitic loads to no avail. The only load on the isolated battery is the actual BMV. I've also tried to make sure that the BMV to shunt cable and connectors have no problems.

Any thoughts? Is this a know fault to the BMV602s?

Hi I am running a Quattro in a Hub-2 configuration and want to add an ET112 between the Grid and the Quattro. For various reasons I can not run in ESS mode. I would like to display imported and exported energy on the CCGX. Is this possible at all, if so how do I configure the CCGX to do this..

I recently installed the victron mppt charge controller and BMV-712 on my camper with 600 watts of solar, and 200 AH of lithium batteries. Everything seems to work fine and I have everything programmed for the lithium’s but the history of all my solar data seems to reset to the “next day” at odd times. The first time was the day after installing it, it reset at 7pm. So I tried resetting it at midnight thinking there was a built in clock or something. Seemed to work fine for 3 days but now today it reset at roughly 1:00 in the afternoon with basically full sun. I can’t find anyone else having the same issue, any suggestions? Or does anyone know more about how the charge controller judges the time/day?

Hi,

If I have a ve.bus BMS connected to venus, along with some MPPTs also connected to venus, does venus integrate with the BMS and shut down the MPPT chargers in the case of over voltage?

OR

do you have to connect the MPPTs to the BMS via a "ve.direct non-inverting remote ON/OFF" cable?

I am interested in using the Cyrix Ct with a 110 amp alternator. I know the Cyrix Ct 120 is more inline with the requirements, but I'd prefer to have the LED status for future trouble shooting. Is there a problem with this idea, other than cost factor?

As far as I understand it is not possible to connect a SmartSense Temperature sensor and the BMV Battery Monitor. So: is there a way to monitor both with the Victor equipment?

Another question: I have 4 Batteries, two in series parallel with the other two (24V). Is there a way to monitor both mid-points?

Thanks!

My monitor was working fine since I put it in 2 weeks ago havie not gone anywhere with the rv yet. It suddenly stopped giving me current and power readings they just say 0 . But the volts are still working.

I want to turn on a water heater when the SOC is between 85 and 100% and shut it off when it falls below the 85% value. i.e. I just want the relay to open when SOC is below 85%. Closed the rest of the time. I can make it work with 85-99% but that means when charge reaches 100 it goes open. The load is a small water heater and there is a lot of solar so even with the heater on it is not unusual to hit 100% Using a smart battery protect 65 as the relay. If can be done, what are the various setting on the BMV relay screen. The documentation is not very clear as to the behavior in various modes. Thanks

Hi,

I updated from VeBus Fw 408, I have noticed if the grid goes down this takes my inverter out with it I presume this is due to g98/g99 regulations. But however this is a pain for me as I suffer frequent outages and they can be anything from a few seconds up to an house. I am able to disconnect from the grid manually and before I updated I could do this and the inverter still work.

But now I am unable to do so is there a workaround for this? or do I just have to put up with this.

Hi i have a recent install 4 x 200 a/h lithiums, 2 solar banks x 2 controllers the battery SOC gradually creeps down overnight as i would expect but in the morning as soon as the PV are lit up by the sun the SOC goes straight from say 89% to 100%, obviously this not correct , any ideas please