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ccgx:start [2019-06-25 12:29]
mvader [4.6 DVCC for systems with the ESS Assistant]
ccgx:start [2019-07-06 11:40] (current)
justin_tyers_live_a_c
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 Enabling DVCC changes a GX device from a passive monitor into an active controller. Enabling DVCC changes a GX device from a passive monitor into an active controller.
  
-For example, in systems with an intelligent CAN-bus BMS battery connected, the GX receives a Charge Voltage Limit (CVL), Charge Current Limit (CCL), Discharge Current Limit (DCL) from that battery and relays that to the connected inverter/​chargers and solar chargers. These then disable their internal charge algorithms and simply do what their told by the battery. There is no need to set-up charge voltages or choose the charge algorithm type.+For example, in systems with an intelligent CAN-bus BMS battery connected, the GX receives a Charge Voltage Limit (CVL), Charge Current Limit (CCL), Discharge Current Limit (DCL) from that battery and relays that to the connected inverter/​chargers and solar chargers. These then disable their internal charge algorithms and simply do what they'​re ​told by the battery. There is no need to set-up charge voltages or choose the charge algorithm type.
  
 For systems with lead batteries, DVCC offers features such as a configurable system wide charge current limit and shared temperature sense. For systems with lead batteries, DVCC offers features such as a configurable system wide charge current limit and shared temperature sense.
  
-As also in above example, the available features and effects of enabling DVCC depend on the type of battery used. The also depends on the installed Victron components and their configuration.+As also in above example, the available features and effects of enabling DVCC depend on the type of battery used. The effect ​also depends on the installed Victron components and their configuration.
  
 {{ :​ccgx:​dvcc_table2.png?​nolink&​800 |}} {{ :​ccgx:​dvcc_table2.png?​nolink&​800 |}}
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 === Firmware versions === === Firmware versions ===
  
-Do not use DVCC in cases where these requirements are not met. In all cases we recommend to install the latest available firmware during commissioning. Once running well, there is no need to pro-actively update firmware without reason. In case of trouble, the first action is to update firmware.+Do not use DVCC in cases where these requirements are not met. In all cases we recommend to install the latest available firmware during commissioning. Once running well, there is no need to pro-actively update firmware without reason. In case of difficulty, the first action is to update firmware.
  
 Required minimum firmware versions: Required minimum firmware versions:
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 ==== 4.3 DVCC effects on the charge algorithm ==== ==== 4.3 DVCC effects on the charge algorithm ====
  
-Our inverter/​chargers and MPPT Solar Chargers use their own internal charge algorithm when in stand alone mode. This means that they determine how long to remain in absorption, when to switch to float, when to switch back to bulk, or storage. And in the various phases they then use the configured parameters in VictronConnect and VEConfigure.+Our inverter/​chargers and MPPT Solar Chargers use their own internal charge algorithm when in stand-alone mode. This means that they determine how long to remain in Absorption, when to switch to Float, when to switch back to Bulk, or Storage. And in those various phases they use the configured parameters in VictronConnect and VEConfigure.
  
 In certain systems, the internal charge algorithm is disabled, and the charger is then working with an externally controlled charge voltage target. In certain systems, the internal charge algorithm is disabled, and the charger is then working with an externally controlled charge voltage target.
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 === Inverter/​charger (applies to MPPTs only) === === Inverter/​charger (applies to MPPTs only) ===
  
-The MPPTs internal charge algorithm is disabled; instead ​its being controlled by a charge voltage setpoint coming from the inverter/​charger.+The MPPTs internal charge algorithm is disabled; instead ​it'​s ​being controlled by a charge voltage setpoint coming from the inverter/​charger.
  
 MPPT indicated charge state: Ext. control. MPPT indicated charge state: Ext. control.
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 The internal charge algorithm is disabled; and instead, the device is being controlled by the battery. The internal charge algorithm is disabled; and instead, the device is being controlled by the battery.
  
-Inverter/​charger indicated charge state: ​bulk when in current controlled mode, absorption ​when in voltage controlled mode. Never float; even tough currents might below / battery might be full.+Inverter/​charger indicated charge state: ​Bulk when in current controlled mode, Absorption ​when in voltage controlled mode. Never Float; even though ​currents might be low / battery might be full.
  
 MPPT indicated charge state: Ext. control. MPPT indicated charge state: Ext. control.
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 ==== 4.6 DVCC for systems with the ESS Assistant ==== ==== 4.6 DVCC for systems with the ESS Assistant ====
  
-  * The ESS Keep batteries charged mode works properly. It does not without DVCC. +  * The ESS ''​Keep batteries charged'' ​mode works properly. It does not without DVCC. 
-  * fixed solar offset of 0.4V is used instead of a variable 2V. (values for 48V systems, divide by 4 for 12V). Note that this solar offset is only applied when ''​ESS-mode''​ is set to ''​Optimized''​ in combination with the ''​Feed-in excess solar charger power''​-setting enabled, or when ''​ESS-mode''​ is set to ''​Keep batteries charged''​.+  * fixed solar offset of 0.4V is used instead of a variable 2V. (values for 48V systems, divide by 4 for 12V). Note that this solar offset is only applied when ''​ESS-mode''​ is set to ''​Optimized''​ in combination with the ''​Feed-in excess solar charger power''​-setting enabled, or when ''​ESS-mode''​ is set to ''​Keep batteries charged''​.
   * Add Auto-recharge feature for the ESS Modes ''​Optimized''​ and ''​Optimized (with BatteryLife)''​. The system will automatically recharge the battery (from the grid) when the SOC drops 5% or more below the value of ‘Minimum SOC’ in the ESS menu. Recharge stops when it reaches the Minimum SOC.   * Add Auto-recharge feature for the ESS Modes ''​Optimized''​ and ''​Optimized (with BatteryLife)''​. The system will automatically recharge the battery (from the grid) when the SOC drops 5% or more below the value of ‘Minimum SOC’ in the ESS menu. Recharge stops when it reaches the Minimum SOC.
   * ESS improved state display: In addition to the charger states (Bulk/​Absorption/​Float),​ additional ''​Discharging''​ and ''​Sustain''​ modes were added. In addition it also shows reasons for the state it is in:   * ESS improved state display: In addition to the charger states (Bulk/​Absorption/​Float),​ additional ''​Discharging''​ and ''​Sustain''​ modes were added. In addition it also shows reasons for the state it is in:
ccgx/start.txt · Last modified: 2019-07-06 11:40 by justin_tyers_live_a_c