ess:design-installation-manual
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ess:design-installation-manual [2019-01-24 07:23] – [9. FAQ] guystewart | ess:design-installation-manual [2019-07-06 15:10] – [1. ESS Introduction & features] guy_stewart | ||
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* [[https:// | * [[https:// | ||
* {{ : | * {{ : | ||
+ | |||
+ | === Energy Storage System introduction, | ||
+ | |||
+ | A seperate document that provides further introductory information, | ||
+ | |||
=== Advanced control options === | === Advanced control options === | ||
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* Lithium with active cell balancing | * Lithium with active cell balancing | ||
* [[battery_compatibility: | * [[battery_compatibility: | ||
- | * [[battery_compatibility: | ||
However, BatteryLife //can// be disabled in these cases. | However, BatteryLife //can// be disabled in these cases. | ||
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Set to ' | Set to ' | ||
+ | |||
+ | Please note that when enabling this option, the DVCC charge current limit configured under Settings -> Limit charge current won't be active. The Solar charger will operate at full power for maximum feed-in into the grid. It's advisable to configure a safe limit on the solar chargers when used with a small battery bank. | ||
=== 4.3.5 Phase compensation === | === 4.3.5 Phase compensation === | ||
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Use the __Fronius Zero feed-in active__ menu item to double check that all above criteria are met. It will show **No** if the firmware requirement; | Use the __Fronius Zero feed-in active__ menu item to double check that all above criteria are met. It will show **No** if the firmware requirement; | ||
+ | |||
+ | Do not use a Fronius Smart Meter for limiting export when part of a Victron ESS System. More details about when a Fronius Smart Meter can, and can not be used is explained [[ac_coupling: | ||
=== 4.3.12 Grid setpoint === | === 4.3.12 Grid setpoint === | ||
This sets the point at which power is taken from the grid when the installation is in self-consumption mode. Setting this value slightly above 0W prevents the system from feeding back power to the grid when there is a bit of over-shoot in the regulation. The default value is therefore 50W - but should be set to a higher value on large systems. | This sets the point at which power is taken from the grid when the installation is in self-consumption mode. Setting this value slightly above 0W prevents the system from feeding back power to the grid when there is a bit of over-shoot in the regulation. The default value is therefore 50W - but should be set to a higher value on large systems. | ||
+ | |||
==== 4.4 Venus-device - Scheduled Charging ==== | ==== 4.4 Venus-device - Scheduled Charging ==== | ||
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(This 0.1 V is the threshold for 12 V systems; for 24 V the threshold is 0.2 V above; and for 48 V it is 0.4V above.) | (This 0.1 V is the threshold for 12 V systems; for 24 V the threshold is 0.2 V above; and for 48 V it is 0.4V above.) | ||
+ | |||
+ | ==== 6.5 ESS Battery Status Reason Code Numbers ==== | ||
+ | |||
+ | In addition to the charger states (Bulk/ | ||
+ | |||
+ | {{: | ||
+ | |||
+ | The key for these codes is: | ||
+ | |||
+ | * #1: SOC is low | ||
+ | * #2: BatteryLife is active | ||
+ | * #3: BMS disabled charging | ||
+ | * #4: BMS disabled discharge | ||
+ | * #5: Slow Charge in progress (part of BatteryLife, | ||
+ | * #6: User configured a charge limit of zero. | ||
+ | * #7: User configured a discharge limit of zero. | ||
+ | |||
+ | |||
===== 7. Phase compensation - further information ===== | ===== 7. Phase compensation - further information ===== | ||
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The same applies to other solutions where the wiring is not protected against accidental removing, for example a simple cable with end-user removable plug, such as a portable power supply. | The same applies to other solutions where the wiring is not protected against accidental removing, for example a simple cable with end-user removable plug, such as a portable power supply. | ||
+ | |||
+ | |||
+ | |||
+ | ===== Troubleshooting ===== | ||
+ | |||
+ | - Start with checking firmware versions (needs to be latest). And when asking questions; report the exact firmware versions that are used. | ||
+ | |||
+ | - Check battery type/brand. If lead then it might be unsuitable and probably broken because of the heavy cycling. | ||
+ | |||
+ | - If some unknown or unsupported CANbus battery; change the battery to a supported type. | ||
+ | |||
+ | Then; if PV is not used enough to power loads; | ||
+ | |||
+ | - Check for the # reason codes; see CODE KEY in this manual. | ||
+ | |||
+ | - Check wiring: lots of voltage drop between MPPT and multi will prevent the system from effectively powering AC loads from solar power. | ||
+ | |||
+ | - Test with and without SVS enabled. | ||
+ | |||
+ | - Next, check MPPT charge current limit during the time that it is not used enough. MPPT CCL is supposed to be high always; even when battery full. Unless there is a temperature issue. | ||
+ | |||
+ | - Now check MPPT Charge Voltage Setpoint. It is supposed to be above actual battery voltage. | ||
+ | |||
+ | |||
+ | Note that those last two setpoints are determined by software; and calculated based on the setpoints sent by the (CANbus connected) lithium battery: you can't change change them manually. Looking at them however does help understanding why certains things are happening; | ||
+ | |||
+ | |||
===== DISQUS ===== | ===== DISQUS ===== | ||
~~DISQUS~~ | ~~DISQUS~~ | ||
- |
ess/design-installation-manual.txt · Last modified: 2021-01-14 08:35 by marmour