Differences

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--- battery_compatibility:cegasa [2022-05-20 14:07] – guystewart
+++ battery_compatibility:cegasa [2023-02-01 01:16] (current) – [4. VEConfigure settings] guy_stewart
@@ Line 6: / Line 6: @@
 |  Grid Backup|  yes|  yes|
 |  Off-Grid|  yes|  yes|
-|  Module capacity|  13,5 kWh |  13.5 kWh |
+|  Module capacity|  13.5 kWh |  13.5 kWh |
-|  Module limit |  4|  18|
+|  Module limit |  6|  18|
-|  Max capacity|  54 kWh|  243 kWh|
+|  Max capacity|  81 kWh|  243 kWh|
@@ Line 26: / Line 26: @@
 === 1.2 A GX device is required, eg Cerbo GX ===
-It is essential to use the BMS-Can connection of a [[venus-os:start|GX device]] with the Cegasa batteries for the keep-alive signal, communication of charge and discharge limits, error codes and state of charge.
+It is essential to use the BMS-Can connection of a [[venus-os:start|GX device]] with the Cegasa batteries for the communication of charge and discharge limits, error codes and state of charge.
-When used with Cegasa batteries, the minimum supported firmware version for the GX device is v2.90. It is recommended to use the latest firmware version on new installations and when trouble shooting issues.
+When used with Cegasa batteries, the minimum supported firmware version for the GX device is v2.22. It is recommended to use the latest firmware version on new installations and when troubleshooting issues.
 Using a CCGX is not recommended as it only has a single VE.Can port.
@@ Line 78: / Line 78: @@
 |Phases|  Single Phase|  Three Phase|  Single Phase|  Three Phase|
 |  Inverter/Charger  |  ESS |  ESS |  Off-grid |  Off-grid |
-|  Multiplus & Multiplus II & MP-II GX 48/3000/35|  1|  2|  1|  2|
+|  Multiplus & Multiplus II & MP-II GX 48/3000/35|  1|  1|  1|  2|
-|  Multiplus & Multiplus II & MP-II GX 48/5000/70|  1|  2|  1|  2|
+|  Multiplus & Multiplus II & MP-II GX 48/5000/70|  1|  2|  1|  3|
 |  Inverter RS & Multi RS 48/6000|  1|  -|  1|  -|
-|  Quattro 48/5000/70-100/100|  1|  2|  1|  2|
+|  Quattro 48/5000/70-100/100|  1|  2|  1|  3|
-|  Quattro 48/8000/110-100/100|  2|  3|  2|  4|
+|  Quattro 48/8000/110-100/100|  2|  4|  2|  5|
-|  Quattro 48/10000/140- 100/100|  2|  4|  2|  -|
+|  Quattro 48/10000/140- 100/100|  2|  4|  2|  6|
-|  Quattro 48/15000/200- 100/100|  3|  4|  3|  -|
+|  Quattro 48/15000/200- 100/100|  3|  6|  3|  -|
-|  EasySolar & EasySolar-II 48/3000/35-50 MPPT|  1|  2|  1|  2|
+|  EasySolar & EasySolar-II 48/3000/35-50 MPPT|  1|  1|  1|  2|
-|  EasySolar 48/5000/70-100 MPPT|  1|  2|  1|  2|
+|  EasySolar 48/5000/70-100 MPPT|  1|  2|  1|  3|
@@ Line 93: / Line 93: @@
 |Phases|  Single Phase|  Three Phase|  Single Phase|  Three Phase|
 |  Inverter/Charger  |  ESS |  ESS |  Off-grid |  Off-grid |
-|  Multiplus & Multiplus II & MP-II GX 48/3000/35|  1|  2|  1|  2|
+|  Multiplus & Multiplus II & MP-II GX 48/3000/35|  1|  1|  1|  2|
-|  Multiplus & Multiplus II & MP-II GX 48/5000/70|  1|  2|  1|  2|
+|  Multiplus & Multiplus II & MP-II GX 48/5000/70|  1|  2|  1|  3|
 |  Inverter RS & Multi RS 48/6000|  1|  -|  1|  -|
-|  Quattro 48/5000/70-100/100|  1|  2|  1|  2|
+|  Quattro 48/5000/70-100/100|  1|  2|  1|  3|
-|  Quattro 48/8000/110-100/100|  2|  3|  2|  4|
+|  Quattro 48/8000/110-100/100|  2|  4|  2|  5|
-|  Quattro 48/10000/140- 100/100|  2|  4|  2|  5|
+|  Quattro 48/10000/140- 100/100|  2|  4|  2|  6|
-|  Quattro 48/15000/200- 100/100|  3|  4|  3|  7|
+|  Quattro 48/15000/200- 100/100|  3|  6|  3|  7|
-|  EasySolar & EasySolar-II 48/3000/35-50 MPPT|  1|  2|  1|  2|
+|  EasySolar & EasySolar-II 48/3000/35-50 MPPT|  1|  1|  1|  2|
-|  EasySolar 48/5000/70-100 MPPT|  1|  2|  1|  2|
+|  EasySolar 48/5000/70-100 MPPT|  1|  2|  1|  3|
@@ Line 112: / Line 112: @@
 (*) The specially wired type A or type B Victron BMS cables are NOT used with the Cegasa BMS.
-It is important to ensure the connection and display of the battery on the [[venus-os:start|GX 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 =====
@@ Line 150: / Line 145: @@
 ^VEConfigure Inverter Parameter              ^Setting^
 |DC input low shut-down | 44V|
-|DC input low restart   | 50V|
+|DC input low restart   | 48V|
 |DC input low pre-alarm* | 45V|
@@ Line 167: / Line 162: @@
 ^ ESS Parameter ^ Settings ^
-|Battery Capacity     | 180 Ah|
+|Battery Capacity     | 280 Ah|
-|Sustain voltage.       | 52V|
+|Sustain voltage.       | 50V|
 |Dynamic cut-off values | Voltage |
-|0.05 | 47V |
+|0.05 | 46V |
 |0.2 | 44V |
 |0.7 | 43.5V |
@@ Line 203: / Line 198: @@
 . After properly wiring and setting up, the battery will be visible as a battery in the device list:
-{{ :battery_compatibility:cegasa_gx.jpg?290 | }} (if you have multiple batteries a single entry will show up, which represents all batteries).
+{{ :battery_compatibility:cegasa_gx.jpg?400 | }} (if you have multiple batteries a single entry will show up, which represents all batteries).
 === Confirm Connection ===
-Confirm the parameters option within the battery page shows the actual battery charge and discharge limits. In normal working conditions, the charge current limit is ~140 A per module. For example, 280A charge current limit ( 280 / 140 = 2 ) means there are 2 Cegasa battery cells connected.
+Confirm the parameters option within the battery page shows the actual battery charge and discharge limits. In normal working conditions, the discharge current limit (DCL) is ~140 A per module. For example, 280A charge current limit (CCL) ( 280 / 140 = 2 ) means there are 2 Cegasa battery cells connected.
-Note these for the Ultra 175 model, these charge current limits are non-linear. 1 module is 140 A, 2 modules is 280 A, 3 is 400A & 4 is 475A
+{{ :battery_compatibility:cegasa_dcl.jpg?400 | }}
+Note these for the Ultra 175 model, charge current limits are non-linear. 1 module is 140 A, 2 modules is 280 A, 3 is 400A & 4 is 475A
+Reporting of additional cell level details (e.g. Lowest and Highest cell voltages etc) to the GX device is not currently supported.
 === GX Device with multiple CAN-bus port configuration ===
@@ Line 253: / Line 252: @@
 === Step 1. If the Inverter/Charger or GX device does not switch on ===
-As a safety precaution, the inverter/charger will not switch on if the [[venus-os:start|GX 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-os:start|GX device]].
+Low voltage and deeply discharged behaviour
+When the grid is connected there are two software controls to sustain voltage. The Minimum SOC (while grid is connected) set in the GX device, and the sustain voltage (set in the ESS assistant).
+If the grid fails and no AC supply is available, in this deeply discharged state, and the battery has set the Discharge Current Limit (DCL) to 0A, then the inverter will turn off in a software off state.
+The GX device will remain on, as there is still DC voltage provided by the batteries for a while.
+Note in this state an AC PV inverter will not produce any power, and will not start up, as it requires the inverter to create the sine wave to synchronise.
+If the AC grid or generator, or DC MPPT is connected, then the battery will begin to charge and then the inverter will start itself again automatically, also resuming charge from an AC PV inverter.
+If instead the battery becomes completely discharged the battery will further protect itself by not just sending the 0A discharge limit, but also disconnecting DC voltage from the battery terminals (via internal MOSFETS).  As there is no DC voltage available on the terminals any more the GX device will also shut down, and the inverter will also then be hard off (not just software off).
-You can then start the inverter/charger from an external charge source such as a generator or grid connection. Once the inverter/charger has started, it should supply power to the DC terminals and this should start the [[venus-os:start|GX device]] and battery again. You will need to then reconnect the VE.Bus Communications cable back to the inverter/charger and [[venus-os:start|GX device]].
+If you then reconnect a DC charge source, or AC input supply (grid or generator), after approximately 2 minutes the inverter will start up again, power the DC bus, powering up the GX device, and then powering up the battery, and the system will recover.
 === Step 2. Check that the battery is visible on the GX device list ===
-{{ :battery_compatibility:cegasa_gx.jpg?290 | }}
+{{ :battery_compatibility:cegasa_gx.jpg?400 | }}
 If its not visible, check: