I did a firmware update that left my multiplus 12/3000/120 acting very strange. Voltage show 12.91 0A 100% and it’s Bulk Charging(!) , and charger setting at 70A, float at 13.70 and I have Low Battery LED on. None of this correct. Battery voltage with meter reads 12.91 So I know that is correct, but thats about it. I’m run MK3-USB and VE.Config and Victron Connect and I can’t find any parameter issues. Where to look next ? I wish I could add a picture to this post
joe
Here is a copy of the configuration, see anything that would stop the charging?
TAB: General
System frequency 60Hz
Shore current 50.0 A
Overruled by remote checked
Dynamic current limiter unchecked
State of charge when Bulk finished 85.0 %
Battery capacity 200 Ah
Charge efficiency 1.00
TAB: Grid
Country / grid code standard None: (feeding energy from DC to grid not allowed)
Accept wide input frequency range (45-65 Hz) checked
AC low switch mains off 90 V
AC low switch mains on 97 V
AC high switch mains on 135 V
AC high switch mains off 140 V
UPS function checked
TAB: Inverter
PowerAssist checked
Assist current boost factor 2.0
Inverter output voltage 120 V
Ground relay checked
State Of Charge shut-down 20.0 %
State Of Charge restart 20.5 %
Inverter DC shut-down voltage 9.30 V
Inverter DC restart voltage 10.90 V
Low DC alarm level 11.00 V
Do not restart after short-circuit (VDE 2510-2 safety) unchecked
enable AES unchecked
TAB: Charger
Enable charger unchecked
Repeated absorption time 1.00 Hr
Repeated absorption interval 7.00 Days
TAB: Virtual switch
TAB: Usage
Invert virtual switch usage checked
Virtual switch usage drive multifunctional (aux.) relay: VS on=open; VS off=close
TAB: A: Set VS ON
“High power limit” VS on delay -1 seconds
“Low DC level” VS on delay -1 seconds
“High DC level” VS on delay -1 seconds
“Not charging” VS on delay -1 seconds
“Fan on” VS on delay -1 seconds
set VS on when bulk protection is activated unchecked
set VS on when general system failure occurs unchecked
“Temperature pre-alarm” VS on delay 1 seconds
“Low-battery pre-alarm” VS on delay 1 seconds
“Overload pre-alarm” VS on delay 1 seconds
“Udc ripple pre-alarm” VS on delay 1 seconds
TAB: B: Set VS OFF
“Low power limit” VS off delay -1 seconds
“Low DC level” VS off delay -1 seconds
“High DC level” VS off delay -1 seconds
“Charging” VS off delay -1 seconds
“Fan off” VS off delay -1 seconds
“Bulk finished” VS off delay -1 minutes
“No VS on” VS off delay 0 minutes
“No AC input” VS off delay -1 seconds
“Temperature pre-alarm” VS off delay -1 seconds
“Low-battery pre-alarm” VS off delay -1 seconds
“Overload pre-alarm” VS off delay -1 seconds
“Udc ripple pre-alarm” VS off delay -1 seconds
TAB: VS options
Minimum VS on time 0 minutes
Change inverter period time when virtual switch is on unchecked
Change inverter period time on Udc unchecked
TAB: Advanced
limit internal charger to prioritize other energy sources unchecked
ps : You can simply upload a picture using the “upload function” …
I’ve fired up VE.config, loaded the default setting config file, and then pushed that to the Multiplus 12/3000/120. I can see that the pushed worked because the Charger setting went to 90Amp, and it was set to 70 before the push.
There was no change , went into bulk charge at 12.62V 0 amps
I then switched to Charger only, no change,
Seems the charger is dead from the firmware update
Checked all Fuses …
“limit internal charger to prioritize other energy sources unchecked” … check these Setting or “disable” it … maybe the System prioritized other Sources and so don´t use the charger …
You have to have a tick in the box for it to be enabled to charge from grid/generator.
When you firmware update, all settings are set to defaults. Then it should await reprogramming before charging.
I’ve SOLVED the problem !?, the following fixed it
powered unit down,
removed and reconnect all battery related cables
Tested the ANL FUSE, It passed a continuity test, but showed signs of burning or heat, replaced
powered unit up to ON via front switch, low battery light came on
loaded default config from VE.Config, changed one setting, Lowered charging rate from 90 amp to 70 amp
Front switch moved to Charger Only and the charger fired up and the low battery light went off
Front switch changed to ON, the unit seem to be running normal and battery charge went to float at 13.79V
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