Victron Pylontech US2000B Manuale utente
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Victron & Pylontech US2000B and Phantom-S
The combination of Victron products with Pylontech lithium batteries has been tested and certified by
the Victron and Pylontech R&D departments.
General information about the battery is found in Pylontech's documentation.
This manual is intended to be used in conjunction with the product manual supplied by Pylontech. It
provides additional and specific information regarding integration with Victron systems.
The Pylontech includes a Battery Management System (BMS) with each battery module. This
interfaces with the Victron Venus-device and can support multiple battery modules connected in
parallel.
1. Product & system compatibility
Battery US2000B US2000B Plus US3000 Plus
Module capacity 2.4 kWh 2.4 kWh 3.5 kWh
1.1 Offgrid, Backup and Energy Storage Systems are possible
Victron + Pylontech can be used for the following system types:
Off-grid
Grid Backup
Energy Storage Systems - Self Consumption (ESS - Start page)
1.2 A Venus-device is required, eg Color Control GX (CCGX) or Venus GX (VGX)
It is essential to use the CAN-bus connection of the Venus-device (eg CCGX or VGX) with the batteries
for the keep-alive signal, communication of charge and discharge limits, error codes and state of
charge.
The minimum required firmware version for the Color Control GX is v2.15. It is highly recommended to
use the latest firmware version on all connected devices, including CCGX/VGX, Inverter/Charger and
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MPPTs. There are regular updates to improve performance and reliability.
1.3 All 48V Multi, MultiPlus, MultiGrid and Quattro are compatible
The minimum firmware version is 422. Though updating to the latest firmware is recommended where
possible.
These inverter/charger units must be connected to the Venus-device via the VE.Bus connection port.
1.4 All 48V VE.direct BlueSolar and SmartSolar MPPT Chargers are compatible
For proper operation, the Pylontech battery needs to be able to control the charge current. Therefor it
is recommended to use Victron 48V compatible MPPTs models with VE.Direct port for charging.
MPPTs with a VE.Direct port
MPPTs are controlled via the Venus-device. Make sure the Venus-device runs v2.15 or later, and the
MPPTs to 1.37 or the latest available version.
The MPPT requires connection to the Venus-device to regulate charge currents as the batteries
require (due to temperature, etc) To test operation, try disconnecting the Venus-device from the
MPPT. After a time-out, the MPPT will stop charging and flash an error code on its LEDs. The error
code is error #67: no BMS.
MPPTs with a VE.Can port
Use of VE.Can MPPT's with Pylontech batteries is not supported or documented.
2. Minimum Battery Sizing Recommendations
Each US2000B Plus battery module is approximately 50Ah at 48V, can provide 25A continuous charge
and discharge and 100A peak for 1 minute.
The charge and discharge rates are managed automatically by the Pylontech battery and Venus-
device.
Using very large solar arrays with battery banks that are too small can exceed the limits of the
batteries ability to charge and possibly lead to the BMS triggering over-current alarms.
You must have the minimum number of units to supply the potential current demand of the load
connected to the inverter. It is more desirable to have the inverter/charger overload than the battery.
Some suggested battery sizings for common Victron inverter/chargers are listed below. These are
suggestions for reliable operation for single phase off grid and are not specified by Pylontech.
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Inverter / Charger Model
Inv
continuous
watts @ 25
degrees
Inverter
peak
watts
surge
rating
Number of
Pylontech
modules
Battery
continuous
discharge
watt rating
Battery
peak
discharge
watt rating
Multiplus 48/500/6 430 900 1 1200 4800
Multiplus 48/800/9 700 1600 1 1200 4800
Multiplus 48/1200/13 1000 2400 1 1200 4800
Multiplus 48/3000/35 2400 6000 2 2400 9600
Multiplus 48/5000/70 4000 10000 4 4800 19200
Quattro 48/8000/110-100/100 6500 16000 6 7200 28800
Quattro
48/10000/140-100/100 8000 20000 7 8400 33600
Quattro
48/15000/200-100/100 12000 25000 10 12000 48000
3. CAN-bus Wiring
You can connect multiple battery modules together to form a single large battery by connecting the
RJ-45 cable supplied by Pylontech using the link ports on the battery. This is shown in more detail in
the example wiring diagram and Pylontech manual.
The batteries will automatically detect and link to each other, no adjustment of dip switches or
software changes are necessary on the batteries.
The battery with the empty link port 0 is the master battery. Using the VE.Can to CAN-bus BMS type B
Cable, part number ASS030720018, Plug the side which is labeled Battery BMS into the Pylontech
CAN port of the master battery. Plug the side labeled Victron VE.Can into the Venus-device.
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Then, plug a VE.Can terminator in the other VE.Can socket on the Venus-device. Two VE.Can
terminators are included with the package of the Venus-device as an accessory, only one is used.
Keep the other one as a spare.
More information about the cable can be found in its manual.
Without properly connecting this cable, the battery will not show up on the display of the Venus-
device. The battery will also turn itself off.
It is important to ensure this connection and display of the battery on the Venus-device display before
attempting firmware updates or settings changes on other devices if they depend on the power
supply from the battery. Without this connection, the battery may turn off unexpectedly.
4. VEConfigure Settings
You will need the latest firmware on all connected devices.
This section presumes familiarity with VEConfigure software.
4.1 General tab
Check the “Enable battery monitor” function
Set the battery capacity to the total capacity of the battery: eg 50Ah times the number of
battery modules for the 2000B Plus model.
The other parameters (“State of charge when bulk finished” and “Charge efficiency”) can be left
to their default setting: They are ignored for a Pylontech installation.
4.2 Charge Settings
Charger tab
Parameter Setting
Battery type Lithium
Charge curve Fixed
Absorption voltage 53.2 V
Float voltage 53.0 V
Absorption time 1 Hr
Note: make sure to double check the float voltage after completing Assistants, and if necessary set it
back to 53.0 V.
4.3 Inverter Settings
In the Inverter tab of VEConfigure
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VEConfigure Inverter Parameter Setting
DC input low shut-down 47V
DC input low restart 51V
DC input low pre-alarm* 48.5V
* The pre-alarm setting is dependant on your preference and on site specific requirements. You may
wish for this to be activated earlier in an off grid situation to allow time to start a backup generator.
ESS System Settings
If you are using the battery as part of a grid connected ESS system, please review the ESS Quickstart
guide and Design and Installation Manual.
The settings that are specific to the Pylontech battery in the VEConfigure ESS Assistant are below:
Select the externally managed Lithium battery option
ESS Parameter Settings
Sustain voltage. 48V
Dynamic cut-off values set all values to 46V.
Restart offset: 1.2V (Default)
Due to the reliability of the grid supply and the behaviour of the sustain voltage threshold in ESS; you
may wish to suppress the low voltage pre-alarm warning so that it does not trigger every day on its
regular deep cycle. See ESS FAQ Q5 - about suppressing the low-voltage alarm.
Hardware Protection Points
In normal operation, the charge parameter limits are set by the Pylontech battery and communicated
through the system by the Venus-device to the inverter/charger and MPPT.
Low Voltage: When the battery discharges to 44.5V or less, battery protection will turn on.
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High Voltage: If charging voltage above 54V, battery protection will turn on.
Working discharge temperature range is from -10 to 50 degrees celsius.
Charging temperature range is from 0 to 50 degrees celsius.
Discharge Current Limit set to 0A at 47V, inverter will turn off.
Over-charge and Over-discharge Current Limit 102A for 15 seconds, 200A for 0.1 seconds and
400A short circuit current.
If operation is attempted outside the operating range, the battery will disconnect to protect itself.
5. Venus-device Settings
On the Venus-device, go to Settings, System setup:
Venus Settings → System Setup Parameter Value
DVCC ON
Shared Voltage Sense OFF
Select the CAN-bus BMS (500 kbit/s) CAN-profile in the CCGX. Menu path: Settings → Services →
CAN-profile.
After properly wiring and setting up, the Pylontech will be visible as a battery in the device list.
If you have multiple batteries a single entry will show up, which represents all batteries:
The parameters option within the battery page shows the actual battery charge and discharge
limits
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This parameters page is also a good place to check that all batteries are connected and working
properly. In normal working conditions, the current limit is 25A per cell. For example, 75A charge
current limit ( 75 / 25 = 3 ) means there are 3 Pylontech battery modules connected.
6. VE-Direct MPPT Settings
In normal operation the MPPT charge characteristics are governed by the Venus-device via DVCC,
with instructions from the connected Pylontech battery.
This section presumes familiarity with VictronConnect
The settings below are a precautionary measure.
MPPT Parameter Setting
Battery voltage. 48V
Absorption voltage 53V
7. Example Wiring Diagram
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8. Troubleshooting
If the system is not operating correctly, go through these steps.
Step 0. If the Inverter/Charger or Venus-device does not switch on
As a safety precaution, the inverter/charger will not switch on if the Venus-device is not on. If you are
unable to start the system due to a total system blackout / battery shutdown due to low voltage, you
may need to disconnect the VE.BUS connection cable between the inverter/charger and Venus-device.
You can then start the inverter/charger from an external charge source such as a generator or grid
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connection. Once the inverter/charger has started, it should supply power to the DC terminals and this
should start the Venus-device and Pylontech battery again. You will need to then reconnect the
VE.Bus Communications cable back to the inverter/charger and Venus-device.
Step 1. Check that the Pylontech battery is visible on the Venus-device list
If its not visible, check:
Venus-device firmware version (update to latest version, v2.15 or later)
CAN-bus communication cabling between Pylontech and Victron system. Make sure that it is in
the right way around.
Pylontech system is up and running (LEDs are on)
Step 2. Check that the Pylontech battery is ready for use
Check the Max Charge Voltage parameter. This voltage parameter is sent, together with the other
three parameters, by the Pylontech system via the CAN-bus cable. They are visible on the Venus-
device: Device List → Pylontech battery → Parameters menu.
Step 3. Check the Pylontech manual
The Pylontech manual contains additional diagnostic and troubleshooting information, specifically
around decoding any indicator LEDs.
9. FAQ
The maximum charge and discharge current is limited to 25A, but the data sheet tells me
the maximum is 100A.
The maximum current is limited to keep the battery healthy and reach the 10 year guarantee. In off-
grid, the inverter can draw more than the 25A limit to run the loads, make sure you have sufficient
batteries installed to keep the load per battery around this limit.
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After charging the battery the charge current often changes between 0A and 25A. This is
caused by cell balancing inside the battery. This happens with new batteries and after a deep
discharge.
10. Further Information
For information about where to buy or find suitably qualified installers, visit the Where to Buy Page.
Further community discussion about installing and using Pylontech and Victron can found at Victron
Community, use the topic label 'Pylontech'.
DISQUS
View the discussion thread.
From:
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Last update: 2019-02-18 22:06
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