My system worked just like it should on initial set up. But I want to use the grid to supplement what energy that my battery and solar can’t power. I went through setting up ESS assistant and it said that the install was successful and the ESS settings showed up on the Cerbo but now all it will do is bleed a little power to the battery or draw power from the battery and will not charge the battery above 45% SOC. It also wont use solar to charge the battery or power loads. I have spent 5 days reading manuals and tech support questions and answers, researching everything I can find online and watching YouTube videos and have yet to find an answer. The company I purchased the equipment from has no idea what’s wrong and had me send pics of everything including multimeter test and all my settings. They are still working on trying to finure out what’s wrong. I have uninstalled ESS assistant and reinstalled went through all setting and restarted the Cerbo and all the other components but nothing has worked.
This is my systems components:
Victron Quattro 48/10000/140-2x100 120v
Victron MPPT RS 450/100-Tr
Victron Cerbo GX
Victron GX Touch 70
Victron Autotransformer 120/240-100A
Victron Smartshunt 2000A/50mV
1 - SOK 48v 100Ah Rack Mount Battery
Renogy 550w panels 8 in series
Renogy 450w panels 4 in series
Settings
TAB: General
System frequency 60Hz
Shore current 100.0 A
Overruled by remote checked
Secondary input shore current 30.0 A
Overruled by remote checked
Dynamic current limiter unchecked
State of charge when Bulk finished 95.0 %
Battery capacity 100 Ah
Charge efficiency 0.95
TAB: Grid
Country / grid code standard Other: not compliant to any grid code standard
AC input 1 Above selected gridcode plus LOM B (safe)
AC input 2 Above selected gridcode plus LOM B (safe)
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 unchecked
Inverter output voltage 120 V
Ground relay checked
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 63 A
Repeated absorption time 1.00 Hr
Repeated absorption interval 7.00 Days
Absorption time 1 Hr
TAB: Virtual switch
TAB: Usage
Virtual switch usage Do not use VS
TAB: Assistants
TAB: Assistant Configuration
ESS (Energy Storage System) (size:982)
*) System uses LiFePo4 with other type BMS
(This can be either a BMS connected via CAN bus or a BMS system in which the
batteries are protected from high/low cell voltages by external equipment.)
*) The battery capacity of the system is 100 Ah.
*) Sustain voltage 50.00 V.
*) Cut off voltage for a discharge current of:
0.005 C= 52.00 V
0.25 C= 50.00 V
0.7 C= 49.20 V
2 C= 48.00 V
*) Inverting is allowed again when voltage rises 1.20 V above cut-off(0).
*) Relevant VEConfigure settings:
- Battery capacity 100 Ah.
- PowerAssist unchecked
- Lithium batteries checked
- Dynamic current limiter unchecked
- Storage mode unchecked
Can anyone help me with this ?