I have two Victron MultiPlus-II 48/5000/70 (240V) running in split-phase and I want to configure AC-IN to charge my batteries using the Generator (small, 2kW).
My problem: I haven’t found out how get the Victron to use AC-IN to charge the batteries. It just remains “disconnected”.
Ignore AC-IN is set to “No”.
What I tried:
- Enable/Disable ‘Weak AC Input’
- Reduce
AC high switch mains on 248 V
AC high switch mains off 255 V - Shore/Grid current limit: 6, 10, 20, 30A…
Which power sources I tested?
- Generator
- Grid
- Portable Inverter battery
… all showing ~230V/50Hz
I waited for the Victron to ‘synchronize’ with AC-IN for at least 10 mins every time…
Any idea why I can’t get AC-IN to charge my batteries?
My configuration export:
TAB: General
System frequency 50Hz
Shore current 6.0 A
Overruled by remote checked
Dynamic current limiter unchecked
External current sensor connected (see manual) unchecked
State of charge when Bulk finished 95.0 %
Battery capacity 9600 Ah
Charge efficiency 0.95
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 180 V
AC low switch mains on 187 V
AC high switch mains on 265 V
AC high switch mains off 270 V
UPS function unchecked
TAB: Inverter
PowerAssist checked
Assist current boost factor 2.0
Inverter output voltage 230 V
Ground relay checked
State Of Charge shut-down 10.0 %
State Of Charge restart 15.0 %
Inverter DC shut-down voltage 37.20 V
Inverter DC restart voltage 43.60 V
Low DC alarm level 43.60 V
Do not restart after short-circuit (VDE 2510-2 safety) unchecked
enable AES unchecked
TAB: Charger
Enable charger checked
Weak AC input unchecked
Stop after excessive bulk unchecked
Lithium batteries checked
Disable VSense (for diagnostic purposes) unchecked
Configured for VE.Bus BMS unchecked
Charge curve Fixed
Absorption voltage 56.80 V
Float voltage 54.00 V
Charge current 35 A
Repeated absorption time 1.00 Hr
Repeated absorption interval 7.00 Days
Absorption time 1 Hr
TAB: Virtual switch
Do not use VS
TAB: Assistants
Assistants not used
TAB: Advanced
limit internal charger to prioritize other energy sources unchecked
Thank you in advance for your effort in giving me a hand with this issue Smile
Kindest regards,
Harald