Why does MPPT throttle to zero?

System is running ESS, Victron Multi II 5kVA and 2 x 150/35 MPPTs. The MPPTs throttle down to 5W randomly and for weeks now we have been trying to find a pattern. The only thing I am quite sure of is that it does not seem to happen when the inverter is turned off. In other words, if I allow the battery to discharge and then let the MPPTs charge but leave the inverter off, they work perfectly.

The MPPT (one or the other) will just stop producing and after typically 10 minutes will work fine again. Sometimes it takes much longer like 30 minutes.

I pride myself on being a very good trouble shooter but I must say, this is so seemingly random it is proving to be very difficult to find a pattern or nail down the cause. What I am 99% sure of is that the instruction to throttle comes from ESS and it stops happening when the Multi is turned off.

How can I get access to a Victron resource that can look behind the scenes at the messaging happening between the components to identify the cause of the throttling?

I have three large Victron systems coming up (two 90kVA and another 30kVA) and getting really concerned that we cannot get this issue resolved.

Many thanks for reading!

Hannes

Hannes van Staden asked
Michael Timler commented ·

12 Answers

Unable to set Venus GX to Two way communication

HAve got my system Venus GX , Multiplus and BMV on the VRM portal but cannot find a menu where I can set the Venus to two way communication in order to update firmware on BMV 702 and to enable Remote cConfigutaion of the Multiplus firmware is version 155

merlepeter asked
Matthias Lange - DE commented ·

4 Answers

Orion TR Smart 12|24-15 Alternator Instal

Good day

I have two 70 Amp 12 Volt alternators on a buss bar feeding a Orion TR Smart 12|24-15 Unit.

The Orion is set at Lithium default (I have Lithium House Bank).

The problem is that the Orion does not switch on (charger).

This is on this Victron Connect App.

sv-denada asked

0 Answers

BlueSolar 75/15 no load output on initial setup

Hello everyone.

I have just installed my BlueSolar 75/15 MPPT and am getting no load output whatsoever.

The battery voltage is 13.8V

The PV voltage is 27.6V

But load voltage is 0V

I have a steady amber light indicating 'float'

And a blinking green light indicating 'Batterylife' mode.

Does anyone have any idea as to why I'm not getting any load output please?

Many thanks

ianjdodd asked
paul-w edited ·

1 Answer

Blue Smart Ip22 30a not bulk charging

Hej! I have a 240ah lithium battery bank(three 80ah). Even when the battery's are at 50% soc the charger only stays in bulk mode for 2-3 seconds. Then goes into absorbation and eventually stop charging before they are full. If I turn on the engine the the generator charges at around 60amps so something is not right. Any ideas?

Sorry if the language is off, English is not my native language.

evol asked
evol commented ·

2 Answers

BMV 602S appears dead, what can I try?

I have bought a BMV 602S secondhand that has thusfar shown now sign of life. I have tested the shunt and the cable and both are OK (cable tested with cable-tester and shunt is giving out some values). However, the monitor shows no sign of live.

Any Idea of what I could try?

bert65 asked
bruces answered ·

4 Answers

How to re-enable BLE on Smart Lithium


The previous owner has disabled BT on the Smart LiFePO4 battery’s on my boat. I want to re-enable BT.

According to Firmware v1.20 it is now possible re-enable Bluetooth again.

https://www.victronenergy.com/live/victronconnect:beta

Has anyone tried this?

Anyone knows which specific pin of the BLE module that has to be connected to the module shield for 5 seconds inorder to re-enable Bluetooth?

In the v1.20 text : See the manual for more detailed information.

I have not been able to find this manual. Has anyone else ?


peteboat asked
anderson258 published ·

2 Answers

Regard sur ma future installation

Bonjour.

Je viens de terminer le schéma de l'installation que je souhaite obtenir. Je le soumet à votre critique pour savoir si elle est correcte, améliorable ou complètement fausse, avant de passer diverses commandes.

[image]

Notes : La puissance totale des panneaux est correcte pour mes besoins. Un seul MPPT 150/45 semble suffisant avec le calculateur Victron, mais j'en ai mis deux pour parer à d'éventuels problèmes sur un panneau solaire ou un MPPT. Je ne sais pas comment tout mettre à la terre et le câble nécessaire entre l'onduleur et le coffret électrique.


Vous pouvez à loisir modifier ce schéma :)

Merci de m'avoir lu.

eliska asked
eliska edited ·

3 Answers

Solar panel suitability question

I have bought a BlueSolar PWM Duo-LCD-USB charge controller to charge my 220ah leisure battery bank and also the vehicle battery on my motorhome. Could anyone tell me if these solar panels are suitable for my system please? I would be looking at buying 2 of them. The manual for the charge controller says to use 36 cell panels but these are 54 cell.


http://www.solardesigntool.com/components/module-panel-solar/Hyundai/1211/HiS-M209SF/specification-data-sheet.html

frontbackside2side asked
tozz answered ·

1 Answer

2 strings panels at an angle

Trying to improve power from an existing roof installation.

We have an EasySolar II GX, which has a Multiplus II 48/3000/35-32 inverter plus a SmartSolar MPPT 250/70 solar controller.

We have 6x 320 W Trina Honey panels mounted on the roof of an ISO 20' (6m) shipping container. Because of the space constraints of the container roof, they are oriented about 20 degrees east of the meridian so get morning sun but lose it in the afternoon.

This is not producing enough power, so we have bought another 6x the same panels. We have 2 more 20' shipping containers at about 90 degrees from the original container (close enough that you could consider it one big roof).

Conventional wisdom seems to be that the new panels must be oriented exactly the same imperfect angle (azimuth and elevation) as the existing panels. Is there a better alternative?

I have seen some comment that two strings of panels back to back, facing respectively east and west, will not 'interfere' with each other so you effectively get separate morning and afternoon charge sessions from them.

Is that a better solution? How about having the two strings at 90 degrees, so facing respectively 45 degrees east of the meridian and 45 degrees west? What is the theory around this? What are the EasySolar's constraints?

spicedreams asked
seb71 commented ·

2 Answers

Cable Size Difference for 12V/3KVA

I was looking at the recommended cable size in the manuals for the MultiPlus 12/3000, the Phoenix Inverter 12/3000 and the Phoenix Inverter Smart 12/3000 (230VAC versions). All of them have 3KVA inverters but the recommended cable sizes are different.


Multiplus manual recommends 2 x 50mm2

Phoenix Inverter recommends 1 x 90mm2

Phoenix Inverter Smart recommends 2 x 95mm2 (with a note saying one cable must be able to carry full fuse rated current without overheating)

All 3 recommend a 400A fuse


Is the recommendation for the Phoenix Smart a bit over kill or is there a good reason for the much larger cable requirement? The 95mm2 cable doesn't fit into the cut outs in the Phoenix Inverter Smart body, the small plastic cut out liners need to be removed in order to fit 95mm2 cable into the inverter. The 95mm2 cable not fitting the cut outs and being double the recommendation for the other two devices seems strange. Can anyone let me know why the Phoenix Inverter Smart requires the extra cable size?

spudgun asked
spudgun commented ·

2 Answers

Multiplus auf dem Kopf gedreht einbauen ?

Hallo Community,


kann man einen Multiplus 12/1600/70 auf den Kopf gestellt einbauen (10cm Luft ist überall) ?

Viele Grüße

Cand

cand asked
cand answered ·

2 Answers

Will Victron Orion Smart 18A 12V DC to DC charger do the job?

Hi, I'm looking to install a B2B charger into my campervan, which has a Euro 6 engine (so regenerative breaking). I only want to charge a small leisure battery (75aH) as my electricity requirements are minimal.

I'm strongly considering the Victron Orion Smart 18A 12V DC to DC charger. I'd be swapping out a old Voltage Sensitive relay for this, will be be a fairly straight forward swap?

k2000 asked
tozz answered ·

1 Answer

Multiplus AC Maxiumum output

I've read a lot on the documentation related the power assistant feature, but this is not clear: what is the limit of the ac/output?

Assuming that we want to use a Multiplus 3000, what happens if I want to connect on the input side an 8Kw generator and an AC load of 10Kw? What is the limit of the output?


smontic asked
tozz commented ·

2 Answers

MPPT Installation

[image]

Truck camper with 2 100w solar panels. Just installed 2 AGM 12v 100ah batteries and a Victron MPPT 100V 30amp 12/24-Volt Solar Charge Controller. This is what I see. Do I have the settings set right? and how do I see the % battery charge?

kathym12345 asked
Matthias Lange - DE answered ·

1 Answer

How to set SOC charging target other than 100%?

My system has 2 Smart Li 200Ah batteries, Multiplus 3000/120, 2 MPPTs 100/30, connected via BatteryProtect, Alternator connected to AGM, and via Cyrix Li to Li batteries. Setup includes BMV-712 Smart and Venus GX.

I want to be able to charge the batteries to say 60% or 80% only while on shore power, knowing that I will have plenty of sun for the rest of the day.

How can I set an SOC target for the Multiplus, or better via Venus GX? I don't want to change the absorption/float voltages.

kupo asked
hackett answered ·

7 Answers

VictronConnect quits unexpectedly

When I close down VictronConnect (click on left-most red traffic light, top left of window) more often than not it crashes with the macOS error message "VictronConnect quit unexpectedly.". I'm running version v5.38 on my MacBook Air running macOS Mojave 10.14.6. I can't remember if I saw the problem with the previous version of VictronConnect. All other apps are behaving normally.

Clearly this isn't a major problem, just a bit of an inconvenience, but it'd be helpful if it could be investigated and resolved.


[image]

allan-fraser asked
allan-fraser edited ·

1 Answer

Lynx Distributor Red LED - But Fuse Not Blown.

Hello,

Hoping I can get some help here, I am installing 2 new Multiplus-II in parallel system and all seems to be working well except i get all LED lights as red on the lynx distributor when I have AC power on and the inverters are charging. I have tested all the new fuses just via continuity test and the batteries are getting charged.

The even stranger thing is this: When I put the 120x2 3000 12v 50a Multiplus in standalone operation, they light will be green, then turn red after a period of time, then green again, but as soon as I put them in parallel and they are both charging the batteries from AC power, the led's on the lynx distributor stay red.... I have the battery protect connected to one slot on the lynx, 2 inverters (multiplus-II) each in its own slot, and the final slot is taken up by my BIM to chassis battery/alternator. The batteries are connected to the Lynx shunt via the end posts (where most people would connect the lynx power in). All the components have shutoff switches in between them.

Any help in understanding the Red LED's when under load would be greatly appreciated. As soon as I turn off the load the led's go off, and only the one green in the center of the distributor is lit. The lynx shunt stays green in any scenario.


Update - Even in standalone when the lynx distributor is under load the lights turn red. I have taken everything back apart and verified every connection but no matter what, under load, I get red lights on the lynx distributor. @Guy Stewart (Victron Community Manager) - Either load from chargers or load from the coach, ie when I turn on a microwave and a heater, it happens every time. I have ordered another lynx distributor to see if maybe it is a hardware board fault? I can't think of anything else it would be... Thanks for any advice in advance.


I have raised this with my retailer (CR for multiplus, and another company for the lynx) and they stated they would open a ticket with Victron, but have heard anything. I think this is an odd one, but maybe Victron staff have ran across this before?

cory cantrell asked
cory cantrell commented ·

1 Answer

How do I configure an Easysolar-II GX?

I have just bought an Easysolar-II GX and before I install it I want to make sure I have all the necessary accessories. I've looked through the manual and online, but am uncertain as to how I am supposed to configure settings like the charging parameters for the Pylontech batteries, or the start switch for generator backup. Do I run VE Configure on my PC and need to buy a USB to RS232 converter? Or perhaps I can do the configuration via wifi or Bluetooth without any accessories?

peter12381 asked
taylortops edited ·

2 Answers

" Mandatory " Smartsolar update v1.56 killed VEDirect to VEDirect cable communication?

Early this morning I was presented with V1.56 " Mandatory " update on 150/60 Smartsolar that connects to my Multiplus II via VE direct port.


Immediately after the update finished , the controller vanished from VRM.


I have two other SmartSolar 150/35 , both of these are connected via VE.Direct to USB , that goes on a USB hub , that connects on the USB port on the MultiPlus II.


I have also updated both of these 150/35 to same V1.56 and both of them still reporting to VRM.


I swapped cables over , and 150/60 does indeed work on the VE.DIrect to USB.


Also tried the VE.Direct to VE.Direct cable on both of the 150/35 controllers , no joy, no connection.


So, this update definitely must have done somerhing that effects VE-Direct to VE.Direct link communication.


teloth asked
teloth answered ·

4 Answers

How do I clear a High Voltage alarm on a GCCX from a Lynx Shunt?

I have tried clearing the alarm by going to the GCCX clicking Menu. Selecting notifications. Arrowing down to the alarm. Pressing the space button and pressing the center button on the CCGX.

I have also restarted the GCCX.

According to the VRM logs voltage only went to 14.22, so not sure why that alarmed. Regardless I cannot seem to clear it. Any ideas?


Thanks!

Jon S asked
Daniël Boekel (Victron Energy Staff) answered ·

2 Answers

IP67 charger firmware update failed

I attempted to update the firmware on my IP67 charger and the update failed. Now, the charger won't turn on. I have tried unplugging it from the mains and disconnecting the battery but it still won't power up. Is there any options before returning it?

crm asked
crm commented ·

2 Answers

NMEA 2000 battery monitoring on CERBO GX

Hi,

I connected my 2 BMV712 as well as my MultiPlus Compact 12/2000 via VE.Can to NMEA 2000 cable to my CERBO GX. I read the instruction on https://www.victronenergy.com/media/pg/Cerbo_GX/en/marine-mfd-integration-by-nmea2000.html but I'm still not sure how to configure each device in the VE.CAN setup. Accessing my NMEA network via a WIFI gateway (Yacht devices) and playing around with the instances does not seem to work to get access to each monitor separately.

Initially I had all inputs on instance #0 but the NMEA interface seem to read two inputs at the same port.

Are there any instructions / guidance beside the above where I can read up how to configure the CERBO GX?


thanks,

Marcus

pilotmarcus asked

0 Answers

Victron Connect findet keine Geräte mit Bluetooth

Hallo zusammen,

Ich habe in meinen Wohnmobil einen Laderegler MPPT 100/30 mit Bluetooth und einen BMV-712 Smart ebenfalls mit Bluetooth. Auf meinen Smartphone Samsung Galaxy S5 Mini läuft die Androidversion 6.0.1 und App VictronConnect 5.4 (vom 20.04.2021).
In Victron Connect ist die Geräteliste leer und beim Suchen findet er keine Geräte. Bluetooth ist im Smartphone aktiviert und Geräte sind nicht gekoppelt.
Wenn ich unter dem Androideinstellungen Bluetooth aufrufe und nach Geräten suche, findet das Smartphone sofort den MPPT 100/30 und auch den BMV-712 Smart mit den Werkspasswort[000000] kann ich beide Geräte auch mit den Smartphone koppeln. In der App tauchen die Geräte nach wie vor nicht auf egal ob ich sie vorher mit dem Smartphone koppel oder nicht.
Hat jemand eine Idee was ich falsch mache oder was ich noch versuchen könnte?

luecki asked
luecki commented ·

1 Answer

Inaccurate readings?

[image]

Trying to understand and get a descent battery reading since I installed this BMV-712.

I added a RPi 3b+ with VenosOS for monitoring.

Attached is the latest readings from this week.

The numbers don't make sense to me.

I have two golf cart batteries (230Ah each) in series, so 12v with a useable 230 amps (Right?)

So if I have used 82 amps of the 230 as stated by the monitor shouldn't that be 64%, how does the monitor calculate 78%?

Is there a setting to mitigate this error? A setting I've missed?

Also, the (mostly) at rest voltage is 12.17 volts? Is this not considered a battery at roughly 50% charge?

(There are parasitic loads in the trailer, fridge, CO2 Dect. ect that I cannot remove)

I was hoping that this 712BMV help me determine the state of my battery, but I'm as confused as ever!

I just want to get the most out of the batteries without damaging them early.

Attached is the last week of use. battery started from full. Zero Cal was done with everything disconnected with the exception of the BMV itself.

mogal asked
mogal answered ·

2 Answers

Multiplus ii 5000 not inverting 4000w

I have a 14kw array charging a 33kw bmw battery with a 450/100 mppt , 1 60 amp mppt and a 100 amp mppt.


at the moment in testing everything is working as expected . I’m about to add a second multiplus ii 5000 in parallel but I’m first of all trying to figure out the low output of the multiplus ii and trying to see if I have missed something in my settings.

I’m running ess and I can’t see anything that would limit the output but it seems when the voltage of my battery is at the lower end the output is lower . My battery is a 12s and my bms will cut off if cell voltage goes high or low

I have the ess configured to stop discharging at 41v and stop charging at 49v

Output of the multiplus appears to be limited to around 3500w until the battery is 47-48v when the output can go as high as 4200w

my cell voltage settings are conservative and the battery is fully able to discharge 8kw right down to the 41v limit I have set


any idea why my output is not 4kw ?

chapelier asked
chapelier edited ·

2 Answers

Smart Solar config

I have a 3 bank battery charger on my boat. I have connected my SmartSolar MPPT 100/50 to a Victron FET battery Isolator. I have several questions that I would like to talk / email with technical support.
1) Is this a recommended installation configuration?
2) Is there a problem using this configuration. The controller is only powered when the solar panels can supply power. This is not a perfect situation, but liveable.
2) The Diode in the Victron Isolator prevents battery current from keeping power to the MPPT controller. I do not wish to direct connect a battery to the common terminal on the isolator as this will result in the common connected battery to charge downstream batteries. If a downstream battery fails, this would bring unsatisfactory results. Is there a way to use the alternator energizer to power the controller? Is there another method?
3) If I could get an email address, I could send more detail system schematic for consideration.

lee-toole asked

0 Answers

BMV 712 to inverter connection

I have a bmv 712 with 500a shunt. Can I connect the negative cable of my 2000w inverter to the shunt to measure usage?

benodonohue asked
benodonohue commented ·

1 Answer