Hello!
We faced a problem at the station where Victron equipment is installed and compatible with them in the following volume:
1. Victron Quattro 48/15000/200 - 6 pcs.
2. Victron SmartSolar MPPT VE.Can 250/100 - 8 pcs.
3. Victron Cerbo GX + GX Touch 50
4. BMZ ESS 9.0 - 3 pcs.
5. Fronius Symo 10.0-3-M - 1 pc.
The station was configured using ESS with the following parameters:
Mode - Optimized (no BattteryLife help)
Mains meter - not active
Solar Charger Power Excessive Input - Inactive
Phase compensation - not active
Minimum SOC discharge (no mains failure) - 50%
Charge power limitation - active
Maximum charge power - 0 W (26.08.2020 after turning on DVCC the function disappeared)
Inverter power limiting - not active
Fronius Feed level zero - active
Fronius Feed Level Zero Active - Yes
Network setup point - 0 W
Scheduled Charge - Disabled
CAN-bus BMS (500 kbits / s)
DVCC - off (26.08.2020 - on)
VE.Configure settings for this station:
AB: General
System frequency 50Hz
Shore current 75.0 A
Overruled by remote unchecked
Secondary input shore current 60.0 A
Overruled by remote checked
Dynamic current limiter unchecked
State of charge when Bulk finished 85.0 %
Battery capacity 470 Ah
Charge efficiency 1.00
TAB: Grid
Country / grid code standard Other: not compliant to any grid code standard
LOM detection AC input 1 disabled
LOM detection AC input 2 disabled
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 checked
TAB: Inverter
PowerAssist unchecked
Inverter output voltage 230 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
Use equalization (tubular plate traction battery curve) unchecked
Charge curve Fixed
Absorption voltage 60.75 V
Float voltage 60.00 V
Charge current 150 A
Repeated absorption time 0.50 Hr
Repeated absorption interval 1.00 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:1822)
*) 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 470 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).
*) The solar converter will start reducing its output power at 50.20 Hz.
Output power will be reduced to minimum when the frequency is 52.70 Hz.
The converter will disconnect when the frequency is higher than 53.00 Hz.
*) Total installed PV inverter power is 10000 Watts.
Total installed PV panel power is 12480 Watts.
*) Relevant VEConfigure settings:
- Battery capacity 470 Ah.
- PowerAssist unchecked
- Lithium batteries checked
- Dynamic current limiter unchecked
- Storage mode unchecked
generator start and stop (size:194)
*) Use secondary programmable relay K1 to start generator.
*) Close relay to start generator.
*) Start generator when the state of charge is lower than 25 %.
*) Stop generator when state of charge is higher than 95 %.
*) The generator is stopped when AC1 is available.
The station has been in operation from 08/18/2020 until today, no comments on the equipment were observed. On 25.08.2020 at 21:26, the network disappeared at the facility and the supply of consumers switched to storage batteries, whose capacity at the time of shutdown was 50% and at 21:44 reached 25% at which the generator was scheduled to start automatically. The generator finished working at 10:07 am on 08/26/2020, but the essence of the problem was that during its operation and the presence of the sun, only Fronius was in operation, and SmartSolar MPPT activity was not applied even after the network was restored. They were only launched manually upon arrival at the site. After several reboots of the GX Touch 50, they crashed again and the SmartSolar MPPTs were inactive when the sun was active. At the moment, the station is working with the initial settings.
During the robots of the station, the following errors were generated:
1.CAN-bus BMS battery Warning high voltage 59.93-61.42
2. SmartSolar MPPT VE.Can 250/100 rev2 # 28 The problem of the charging stage of the device
We ask you to consider the appeal and identify the problem as soon as possible. If this is due to an overestimated battery voltage, then to what level should it be underestimated if all settings were set according to https://www.victronenergy.com/live/battery_compatibility:bmz_ess.
Thank you in advance for your help!
