Changes for page 3.3 Control

Last modified by Admin on 2026/04/30 15:56

From 76.8 to 76.9 From 87.14 to 87.15

From version 76.9

edited by Admin
on 2026/03/31 13:01

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To version 87.14

edited by Admin
on 2026/04/02 10:38

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@@ -15,7 +15,7 @@
  * **Cell capacity** – nominal capacity of cells, Ah;
  * **Cell resistance** – nominal (maximum) internal resistance of the cells, Ohm;
  * **Connection of cells:**
--** **Serial **– all cells are connected in series in a single string.
++** **Serial **– all cells are connected in series in a single string;
  ** **Parallel-Serial **– cells are grouped in parallel and serial items;
  * **Parallel-Serial: Number of Logic devices in a chain**;
  * **Parallel-Serial: Number of parallel chains in a block**;
@@ -29,7 +29,7 @@
  ** **Summation of cell voltages** – the overall voltage is calculated as on sum of all cells in the battery;
  ** **Using voltage before contactors** – the overall voltage is estimated as voltage before contactors measured by BMS.
--The **"Parallel-Serial"** connection works as follows: a bunch of serial connected Logics are grouped into chains. A bunch of parallel connected chains are grouped to blocks. A bunch of serial connected blocks are grouped into string. By configuring the corresponding settings it is possible to create a complex string configuration. Current through each chain will be estimated as a fraction of overall current accordingly to the number of chains in a block.
++The **"Parallel-Serial"** connection works as follows: a bunch of serial connected Logics are grouped into chains. A bunch of parallel connected chains are grouped to blocks. A bunch of serial connected blocks are grouped into string. By configuring the corresponding settings it is possible to create a complex string configuration. Current through each chain will be calculated as overall string current divided by number of chains in a block.
  The values **“Capacity”** and **“Resistance”** are used to calculate the SOC of cells and the battery.
@@ -39,7 +39,7 @@
  === SOC estimation ===
--The BMS Main 3 / BMS Main 2R device calculates the state of charge (SOC) of each cell, and then the overall battery SOC, by using following algorithms:
++The BMS Main 3 / BMS Main 2R device calculates the state of charge (SOC) of each cell by using following algorithms:
  The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C).
@@ -94,11 +94,11 @@
  === SOH estimation ===
--The BMS Main 3 device calculates the state of health of the battery (SOH) using two algorithms:
++The BMS Main 3 / BMS Main 2R device calculates the state of health of the battery (SOH) using two algorithms:
  In **"By effective capacity" **mode SOH is calculated as a ratio of effective capacity to nominal capacity. Effective capacity is estimated to DOD value when battery SOC reaches 0%, so SOH is recalculated each full battery discharge.
--In** "By total charge–"** mode SOH is calculated as a linear function of "Total charge-" counter. While "Total charge-" constantly increases during battery operation, SOH will be linearly decrease at the same time. This mode requires a confirmed data about cell health depending of amount of discharge rate to configure the linear function.
++In** "By total charge–"** mode SOH is calculated as a linear function of "Total charge-" counter. While "Total charge-" constantly increases during battery operation, SOH will be linearly decrease at the same time. This mode requires a confirmed data about cell health depending of amount of discharge rate to configure the linear function.
  To configure parameters for battery state of health calculation, select the "Control → SOH correction" section:
@@ -373,9 +373,9 @@
  (% class="box infomessage" %)
  (((
--**Note:** The "Allow charging" signal activates under two independent conditions:
++**Note:** The **"Allow charging"** signal activates under two independent conditions:
 ) the voltage on the cells reaches the “Voltage to reset the “Ready to charge"” level and
--2) the "Delay before recharging" time has passed since the opening of the allow charging contactor.
++2) the "Delay before recharging" time has passed since the clearing of the "Allow charging" signal.
  )))
  === Discharging status ===
@@ -395,37 +395,43 @@
  * **Check the 'Discharge current limit' value to generate the 'Ready to discharge'** – a flag to enable check of "Discharging current limit" to generate the "Ready to discharge" signal;
  * **Discharge current limit to clear the 'Ready to discharge'** – a threshold discharging current limit value, A; if the limit is //above //this level, the “Ready to discharge” signal is cleared;
  * **Discharge current limit to set the 'Ready to discharge'** – a tolerant discharging current limit value, A; if the limit is //below //this level, the “Ready to discharge” signal is set;
--* Clear the 'Ready to discharge' signal if the 'Low SOC' signal is set;
--* Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
++* **Clear the 'Ready to discharge' signal if the 'Low SOC' signal is set**;
++* **Errors 1, 2 to clear the "Ready to discharge"** – bitfields to choose the errors which will clear the "Ready to discharge" signal.
  === Precharge ===
--The BMS Main 3 device can control the precharge contactor. The precharge contactor is used to charge the intermediate capacity with low current and usually placed with the limiting resistor in parallel to charging or discharging contactor.
++The BMS Main 3 / BMS Main 2R device can control the precharge contactor. The precharge contactor is used to charge the intermediate capacity with low current and usually placed with the limiting resistor in parallel to charging or discharging contactor.
--BMS Main 3 device detects errors while pre-charging the load capacity by monitoring the current and voltage difference before and after contactors. Also BMS can measure the power dissipated on precharge resistor and generate an error if it greater than configured limit.
++BMS Main 3 can check the preacharge process by monitoring **the current and voltage difference** before and after contactors.
--TBA
++BMS Main 2R can check the preacharge process **only by monitoring the current**.
++In **simple **mode precharge contactor closes a "Precharge time" before the closing of Charge or Discharge contactors and opens after the same amount of time after closing them.
++
++In **enhanced **mode precharge contactor will wait until the current of voltage difference requirements are met and close the Charge or Discharge contactors only after that. If waiting time is greater than "Precharge time" value, an error will be generated. Precharge contactor will open after "Precharge time" after closing the Charge of Discharge contactors.
++
++Also BMS Main 3 / BMS Main 2R can measure the power dissipated on precharge resistor and generate an error if it is greater than configured limit.
++
  To change the parameters of precharge contactor, select the "Control → Precharge" section:
  [[image:1750328428183-819.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="178" width="800"]]
--* Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
--* Check voltages before and after contactors to finish precharging – a flag to check the voltages before and after contactors to ensure that precharge process has finished and it is allowed to close the discharging contactor;
--* Minimum voltage difference to finish precharging – minimal voltage difference before and after contactors at which precharge process is meant to be finished, V;
--* Keep the precharging relay closed until precharge is finished – a flag to ignore the Precharge time and wait precharging to finish before open precharge relay;
--* Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
--* Delay before current measurement – a delay before first current measurement after closing precharge, millisecond;
--* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
--* Relaxation between attempts – a duration between precharge attempts, millisecond;
--* Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
--* Precharge resistor resistance, Ohm;
--* Maximum allowable power dissipated in the resistor, W;
--* Delay before setting the "Precharge error" when checking power, millisecond;
--* Delay before clearing the "Precharge error", second;
--* Lock the "Precharge error" – a flag to block the error until the device is restarted.
++* **Precharge current threshold to finish precharging **– a minimum current value at which precharging process assumed to be finished, A;
++* **Check voltages before and after contactors to finish precharging **– a flag to check the voltages before and after contactors to ensure that precharge process has finished and it is allowed to close the discharging contactor;
++* **Minimum voltage difference to finish precharging** – minimal voltage difference before and after contactors at which precharge process is meant to be finished, V;
++* **Keep the precharging relay closed until precharge is finished** – a flag to ignore the Precharge time and wait precharging to finish before open precharge relay;
++* **Number of precharging attempts** – maximum number of precharging attempts before setting the "Precharge error";
++* **Delay before current measurement** – a delay before first current measurement after closing precharge, millisecond;
++* **Precharge time **– a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
++* **Relaxation between attempts **– a duration between precharge attempts, millisecond;
++* **Check the power dissipated in the preacharge resistor** - a flag to enable the calculation of power dissipated in precharge resistor;
++* **Precharge resistor resistance**, Ohm;
++* **Maximum allowable power dissipated in the resistor**, W;
++* **Delay before setting the "Precharge error" when checking power**, millisecond;
++* **Delay before clearing the "Precharge error"**, second;
++* **Lock the "Precharge error"** – a flag to block the error until the device is restarted.
--“Precharge error” generation conditions if any of the following is true:
++“Precharge error” generates if any of the following is true:
  * the precharge current does not decrease during the "Precharge time" after "Number of precharging attempts";
  * voltages before and after contactors are not equal during the "Precharge time" after "Number of precharging attempts";
@@ -438,39 +438,31 @@
  === Charge ===
--There are two contactors that serve charging the battery: a charging contactor and an allow charging contactor. With the help of the allow charging contactor, the BMS commands the charger to start or stop charging.
++The BMS Main 3 / BMS Main 2R device connect battery to the charger using the "Charging" signal.
--The device supports three charge control algorithms:
++BMS Main 3 / BMS Main 2R supports three charge control algorithms:
--* Always on – charging is always allowed;
--* On charger connected – charging is allowed when there is a signal “Charger connected”;
--* On charge request – charging is allowed when there is a signal “Charge request”.
++If the "**Always on**" algorithm is selected, the "Сharging" signal is always set. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals:
--If the "**Always on**" algorithm is selected, the charging contactor and the allow charging contactor are always closed. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals:
--
  * Service reset;
  * Power down request;
  * Inhibit charging,
--both contactors are open (no current flows).
++the "Charging" signal is cleared.
  When the algorithm "**On charger connected**" is selected, the control is performed as follows:
--* If there is a signal “Charger connected” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the charging contactor and the allow charging contactor close;
--* If the signal “Charger connected” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens;
--* If in the process of charging the voltage on the cell exceeds the “Ready to charge” level, the allow charging contactor opens (while the charging contactor remains closed);
--* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open.
++* If there is a signal “Charger connected” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the "Charging" signal is set;
++* If the signal “Charger connected” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Charging" signal is cleared.
  When the "**On charge request**" algorithm selected, the control is performed as follows:
--* If there is a signal “Charge request” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the charging contactor and the allow charging contactor close;
--* If the signal “Charge request” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens;
--* If in the process of charging the voltage on the cell exceeds the “Ready to charge” level, the allow charging contactor opens (while the charging contactor remains closed);
--* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open.
++* If there is a signal “Charge request” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the "Charging" signal is set;
++* If the signal “Charge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Charging" signal is cleared;
  (% class="box infomessage" %)
  (((
--**Note: **when errors occur in the system, the **Charge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
++**Note: **when errors occur in the system, the **"Charing" **signal is cleared either immediately or with the delay T,,off,, (depends on the settings described below).
  )))
  To change the parameters of the battery charge control algorithm, select the "Control → Charge" section:
@@ -479,51 +479,47 @@
  In this section:
--* Enable – a flag to activate the charge control;
--* Algorithm:
--** Always on – charging is always allowed;
--** On charger connected – charging is allowed when there is a signal “Charger connected”;
--** On charge request – charging is allowed when there is a signal “Charge request”;
--* Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared;
--* Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
--* Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
--* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the charge contactor (see [[Precharge>>path:#HPrecharge]]);
--* Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor;
--* Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
--* Custom delay: <error> – delay for specific error, millisecond;
--* Switch off the charging contactor on errors without delay – a flag to protectively open the charging contactor without a delay. In the opposite case, when an error is detected, the charging contactor opens always with the delay “Delay before stopping charging”;
++* **Enable **– a flag to activate the charge control;
++* **Algorithm**:
++** **Always on** – charging is always allowed;
++** **On charger connected** – charging is allowed when there is a signal “Charger connected”;
++** **On charge request** – charging is allowed when there is a signal “Charge request”;
++* **Allow charging only when the "Ready to charge" signal is set** – charging contactor will open if "Ready to charge" signal is cleared;
++* **Delay before starting charging** – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
++* **Delay before stopping charging** – a time delay T,,off,, before opening the charging contactor, millisecond;
++* **Control the precharging contactor** – a flag that allows control of the precharging contactor while closing the charge contactor (see [[Precharge>>path:#HPrecharge]]);
++* **Errors 1, 2 to open the charging contactor** – bitfields to choose the errors which will open the charging contactor;
++* **Use custom delays before stopping charging (on errors)** – a flag to enable manual settings of time delays T,,off,, for specific errors;
++* **Custom delay: <error>** – delay for specific error, millisecond;
++* **Switch off the charging contactor on errors without delay** – a flag to protectively open the charging contactor without a delay. In the opposite case, when an error is detected, the charging contactor opens always with the delay “Delay before stopping charging”;
  === Discharge ===
--The device controls the discharging contactor to connect battery to the load.
++The BMS Main 3 / BMS Main 2R device connect battery to the load using the "Discharging" signal.
--The device supports three algorithms to control battery discharging:
++BMS Main 3 / BMS Main 2R supports three algorithms to control battery discharging:
--* Always on – load is always connected;
--* On charger disconnected – load is connected when there is no signal “Charger connected”;
--* On discharge request – load is connected when there is signal “Discharge request”.
++When the algorithm "**Always on**" is selected, the "Discharging" signal is always set. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals:
--When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals:
--
  * Service reset
  * Power down request
  * Inhibit discharging
--the discharging contactor opens.
++the "Discharging" signal is cleared.
  If the algorithm "**On charger disconnected**" is selected, the control is performed as follows:
--* if there is no signal “Charger connected”, the charging contactor is open and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the discharging contactor closes;
--* If the signal “Charger connected” appears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the discharging contactor opens.
++* if there are no “Charger connected” and "Charging" signals and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the "Discharging" signal is set;
++* If the signal “Charger connected” appears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Discharging" signal is cleared.
  When the "**On discharge request**" algorithm selected, the control is performed as follows:
--* if there is signal “Discharge request”, the charging contactor is open and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the discharging contactor closes;
--* If the signal “Discharge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the discharging contactor opens.
++* if there is signal “Discharge request” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the "Discharging" signal is set;
++* If the signal “Discharge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Discharging" signal is cleared.
  (% class="box infomessage" %)
  (((
--**Note: **when errors occur in the system, the **Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
++**Note: **when errors occur in the system, the **"Discharge" **signal is cleared either immediately or with the delay T,,off,, (depends on the settings described below).
  )))
  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
@@ -532,32 +532,45 @@
  In this section:
--* Enable – a flag to activate the discharge control;
--* Algorithm:
--** Always on – load is always connected;
--** On charger disconnected – load is connected when there is no signal “Charger connected”;
--** On discharge request – load is connected when there is signal “Discharge request”;
--* Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared;
--* Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond;
--* Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond;
--* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]);
--* Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor;
--* Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
--* Custom delay: <error> – specific error delay, millisecond;
--* Switch off the discharging contactor on errors without delay – a flag to protectively open the discharging contactor without a delay. In the opposite case, when an error is detected, the discharging contactor opens always with the delay “Delay before stopping discharging”.
++* **Enable **– a flag to activate the discharge control;
++* **Algorithm**:
++** **Always on** – load is always connected;
++** **On charger disconnected** – load is connected when there is no signal “Charger connected”;
++** **On discharge request** – load is connected when there is signal “Discharge request”;
++* **Allow charging only when the "Ready to discharge" signal is set** – discharging contactor will open if "Ready to discharge" signal is cleared;
++* **Delay before starting discharging** – a time delay T,,on,, before closing the discharging contactor, millisecond;
++* **Delay before stopping discharging** – a time delay T,,off,, before opening the discharging contactor, millisecond;
++* **Control the precharging contactor** – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]);
++* **Errors 1, 2 to open the discharging contactor** – bitfields to choose the errors which will open the discharging contactor;
++* **Use custom delays before stopping discharging (on errors)** – a flag to enable manual settings of time delays T,,off,, for specific errors;
++* **Custom delay: <error>** – specific error delay, millisecond;
++* **Switch off the discharging contactor on errors without delay** – a flag to protectively open the discharging contactor without a delay. In the opposite case, when an error is detected, the discharging contactor opens always with the delay “Delay before stopping discharging”.
  === Charge/Discharge ===
--The BMS Main 3 device can control the charge/discharge contactor, which combines algorithms of charging and discharging contactor.
++The BMS Main 3 / BMS Main 2R device can control the contactor, used in power line both used for connecting battery to charger and load, by using the "Charging/Discharging" signal.
--Charge/Discharge contactor has three algorithms of operation:
++"Charging/Discharging" signal has three algorithms of operation:
--* Dependent (on Charging and Discharging signals) - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor;
--* Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
--* Independent (on Charge request or Discharge request) - Charge/Discharge contactor is based on its own controller that listen to Charge and Discharge requests and closes if one of these signals occurs.
++On **Dependent (on Charging and Discharging signals)** algorithm the "Charging/Discharging" signal depends on Charge and Discharge controllers and equal to:
--TBA
++* "Charging" signal if "Charging" signal is set;
++* "Discharging" signal in other cases.
++When **Independent (Always) **algorithm is selected, the Charging/discharging contactor is always closed. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals:
++
++* Service reset
++* Power down request
++* Inhibit charging
++* Inhibit discharging
++
++the charging/discharging contactor opens.
++
++On **Independent (on Charge request or Discharge request)** algorithm charge/discharge contactor is based on its own controller and performs as follows:
++
++* if there is "Charge request" or "Discharge request" signal and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the charging/discharging contactor closes;
++* If the "Charge request" or "Discharge request" disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the charging/discharging contactor opens.
++
  (% class="box infomessage" %)
  (((
  **Note: **when errors occur in the system, the **Charge/Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
@@ -569,23 +569,23 @@
  In this section:
--* Enable – a flag to enable the charge/discharge controller.
--* Algorithm:
--** Dependent (on Charging and Discharging signals) - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor;
--** Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
--** Independent (on Charge request or Discharge request);
--* Delay before starting charging or discharging, millisecond;
--* Delay before stopping charging or discharging, millisecond;
--* Control the precharging contactor – a flag that enables control of precharging contactor while closing the charge/discharge contactor;
--* Emulate the "Charging" and "Discharging" signals – a flag to enable generation of "Charging" and "Discharging" signals when closing charge/discharge contactor;
--* Errors 1, 2 to prevent CHARGING through charging/discharging contactor, Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor – bitfields to choose the errors which will open the charging/discharging contactor. This bitfields are combined by bitwise OR and intended to separate settings for charging and discharging processes;
--* Errors 1, 2 which affect the contactor only if battery CHARGING is detected – a bitfield to choose the errors which will trigger only if charging current is present. This bitfield is combined with "Errors 1, 2 to prevent CHARGING through charging/discharging contactor" by bitwise AND;
--* Errors 1, 2 which affect the contactor only if battery DISCHARGING is detected – a bitfield to choose the errors which will trigger only if discharging current is present. This bitfield is combined with "Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor" by bitwise AND;
--* Switch off the charging/discharging contactor on errors without delay – a flag to protectively open the charging/discharging contactor without a delay. In the opposite case, when an error is detected, the charging/discharging contactor opens always with the delay “Delay before stopping discharging”.
++* **Enable **– a flag to enable the charge/discharge controller.
++* **Algorithm**:
++** **Dependent (on Charging and Discharging signals)** - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if Charging signal is set, otherwise – as Discharging contactor;
++** **Independent (Always)** - Charge/Discharge contactor is always closed if there is no errors;
++** **Independent (on Charge request or Discharge request)**;
++* **Delay before starting charging or discharging**, millisecond;
++* **Delay before stopping charging or discharging**, millisecond;
++* **Control the precharging contactor** – a flag that enables control of precharging contactor while closing the charge/discharge contactor;
++* **Emulate the "Charging" and "Discharging" signals** – a flag to enable generation of "Charging" and "Discharging" signals when closing charge/discharge contactor;
++* **Errors 1, 2 to prevent CHARGING through charging/discharging contactor, Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor** – bitfields to choose the errors which will open the charging/discharging contactor. This bitfields are combined by bitwise OR and intended to separate settings for charging and discharging processes;
++* **Errors 1, 2 which affect the contactor only if battery CHARGING is detected** – a bitfield to choose the errors which will trigger only if charging current is present. This bitfield is combined with "Errors 1, 2 to prevent CHARGING through charging/discharging contactor" by bitwise AND;
++* **Errors 1, 2 which affect the contactor only if battery DISCHARGING is detected** – a bitfield to choose the errors which will trigger only if discharging current is present. This bitfield is combined with "Errors 1, 2 to prevent DISCHARGING through charging/discharging contactor" by bitwise AND;
++* **Switch off the charging/discharging contactor on errors without delay** – a flag to protectively open the charging/discharging contactor without a delay. In the opposite case, when an error is detected, the charging/discharging contactor opens always with the delay “Delay before stopping discharging”.
  === Discharge (AUX) ===
--The BMS Main 3 device can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices.
++The BMS Main 3 / BMS Main 2R device can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices.
  The power supply circuit of the external equipment using the auxiliary (AUX) discharging contactor is independent of the battery load circuit. The closing and opening of the auxiliary (AUX) discharging contactor is performed according to its program.
@@ -601,27 +601,27 @@
  In this section:
--* Enable – a flag to activate the auxiliary discharge control;
--* Switch off the discharging (AUX) contactor if the SOC is too low;
--* Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %;
--* Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %;
--* Switch off the discharging (AUX) contactor if the cell voltage is out of the range;
--* Minimum cell voltage, V;
--* Maximum cell voltage, V;
--* Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
--* Minimum battery voltage, V;
--* Maximum battery voltage, V;
--* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor.
++* **Enable **– a flag to activate the auxiliary discharge control;
++* **Switch off the discharging (AUX) contactor if the SOC is too low**;
++* **Minimum SOC** – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %;
++* **Tolerant SOC** – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %;
++* **Switch off the discharging (AUX) contactor if the cell voltage is out of the range**;
++* **Minimum cell voltage**, V;
++* **Maximum cell voltage**, V;
++* **Switch off the discharging (AUX) contactor if the battery voltage is out of the range**;
++* **Minimum battery voltage**, V;
++* **Maximum battery voltage**, V;
++* **Errors 1, 2 to open the auxiliary discharging contactor** – bitfields to choose the errors which will open the auxiliary discharging contactor.
  === Cell balancing ===
  Balancing makes the voltage of all cells equal to the minimum cell voltage.
--The following balancing rules are supported:
++The following **balancing rules** are supported:
--* when the battery is charging (current I > 0) and time after until the battery is relaxed;
--* when the battery is charging (current I > 0) or when the battery is in a state of relaxation;
--* always (regardless of battery state).
++* **Balance on charge** – perform balancing when the battery is charging (current I > 0) and time after until the battery is relaxed;
++* **Balance on charge or relaxed** – perform balancing when the battery is charging (current I > 0) or when the battery is in a state of relaxation ;
++* **Balance always** regardless of battery state.
  A balancing resistor is connected to the cell if the following conditions are simultaneously met:
@@ -638,9 +638,9 @@
  If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
  )))
--The BMS Main 3 can enable the cell balancing by the external “Balancing request” signal. Balancing process will be started to cells which the voltage is higher than the balancing start voltage and the difference between the cell voltage and the minimum voltage among all the cells is greater than the balancing stop threshold.
++The BMS Main 3 / BMS Main 2R can enable the cell balancing by the external **“Balancing request”** signal. Balancing process will be started to cells which the voltage is higher than the balancing start voltage and the difference between the cell voltage and the minimum voltage among all the cells is greater than the balancing stop threshold.
--BMS Main 3 can force a cell balancing, if its voltage is higher than estimated value.
++BMS Main 3 / BMS Main 2R can **force balancing **of the cell, if its voltage is higher than estimated value.
  To change the cell balancing parameters, select the "Control → Cell balancing" section:
@@ -648,24 +648,25 @@
  In this section:
--* Enable – a flag to enable cell balancing;
--* Balancing rule:
--** Balance on charge – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states);
--** Balance on charge or relaxed - balancing is performed while and after the charging and in the relaxed state (in “Charge ON”, “Charge OFF”, “Relaxed (after charging)” and “Relaxed (after discharging)” states);
--** Balance always – balancing is always performed regardless the battery state;
--* Balancing condition:
--** Automatic – balancing will be performed automatically if needed conditions are met;
--** On balancing request – balancing will start only if a remote request is received. In this case cells will start to balance regardless the "Voltage deviation to start balancing" value;
--* Minimum cell voltage to start balancing, V;
--* Voltage deviation to start balancing;
--* Voltage deviation to stop balancing;
--* Voltage for forced balancing – if cell voltage is above this value, it will start discharging through balancing resistor;
--* Maximum allowable temperature of BMS Logic devices, ºC;
--* Command to discharge all cells – a flag to force the balancing of all cells.
++* **Enable **– a flag to enable cell balancing;
++* **Balancing rule**:
++** **Balance on charge** – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states);
++** **Balance on charge or relaxed** - balancing is performed while and after the charging and in the relaxed state (in “Charge ON”, “Charge OFF”, “Relaxed (after charging)” and “Relaxed (after discharging)” states);
++** **Balance always** – balancing is always performed regardless the battery state;
++* **Balancing condition**:
++** **Automatic **– balancing will be performed automatically if needed conditions are met;
++** **On balancing request** – balancing will start only if a remote request is received. In this case cells will start to balance regardless the "Voltage deviation to start balancing" value;
++* **Minimum cell voltage to start balancing**, V;
++* **Voltage deviation to start balancing**;
++* **Voltage deviation to stop balancing**;
++* **Voltage to start forced balancing** – if cell voltage is above this value, it will start discharging through balancing resistor;
++* **Voltage to stop forced balancing** – if cell voltage is below this value, it will stop discharging through balancing resistor;
++* **Maximum allowable temperature of BMS Logic devices**, ºC;
++* **Command to discharge all cells** – a flag to force the balancing of all cells.
  === Series balancing ===
--The BMS Main 3 device supports work with two independent (galvanically unrelated) cell series. To monitor the status of two series, two current sensors are used. A series of cells must be equivalent: they must have the same number of cells and the same capacity.
++The BMS Main 3 / BMS Main 2R device supports work with two independent (galvanically unrelated) cell series. To monitor the status of two series, two current sensors are used. A series of cells must be equivalent: they must have the same number of cells and the same capacity.
  Since the series of cells can operate at different loads, they must be balanced. For this, the BMS Main 3 provides two signals to power switches: “Balancing series 1” and “Balancing series 2”, as well as a combined algorithm that considers both the voltage of each series and the charge that these series gave load. The “Balancing series 1” and “Balancing series 2” signals are used to connect high-power balancing resistors in parallel with cell series 1 and 2.
@@ -682,17 +682,17 @@
  In this section:
--* Enable – a flag to enable series balancing;
--* Number of Logics in a series;
--* Minimum series voltage to start balancing, V;
--* Balancing threshold, V;
--* Coulomb threshold – the difference of the charges Qthr, given by a series of cells, above which balancing to be started, Ah;
--* Period – a period to reset of charge counters for each series (to avoid accumulation of error), second;
--* Do not sum series voltages – a flag to disable the summing of series voltages.3
++* **Enable **– a flag to enable series balancing;
++* **Number of Logics in a series**;
++* **Minimum series voltage to start balancing**, V;
++* **Balancing threshold**, V;
++* **Coulomb threshold** – the difference of the charges Qthr, given by a series of cells, above which balancing to be started, Ah;
++* **Period **– a period to reset of charge counters for each series (to avoid accumulation of error), second;
++* **Do not sum series voltages** – a flag to disable the summing of series voltages.
  === Power down ===
--The BMS Main 3 device can shut down itself if the battery voltage is low or the battery is idle for a long time.
++The BMS Main 3 / BMS Main 2R device can shut down itself if the battery voltage is low or the battery is idle for a long time.
  Shutting down the battery system is performed according to the following conditions:
@@ -699,7 +699,7 @@
  * the battery voltage is below the minimum level;
  * the “Charger connected” signal is cleared for 60 seconds.
--The BMS Main 3 device also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” for the configured time.
++The BMS Main 3 device also shuts down the battery if it **stays for a long time **in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” state.
  To change the parameters of the power down control, select the "Control → Power down" section:
@@ -707,11 +707,11 @@
  In this section:
--* Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V;
--* Idle time to power down – a time of battery inactivity after which the battery is shut down, minute;
--* Wait the "Power up/down request" is cleared (on startup) – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS.
--* Power down if KEYRUN and CHARGE_ON are cleared – a flag to power down the device if KEYRUN and CHARGE_ON signals are cleared;
--* Delay before setting the internal power down signal – a delay before turning off the device power when removing KEYRUN and CHARGE_ON or receiving the “Power down request” command, ms.
++* **Minimum voltage to power down** – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V;
++* **Idle time to power down** – a time of battery inactivity after which the battery is shut down, minute;
++* **Wait the "Power up/down request" is cleared (on startup)** – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS.
++* **Power down if KEYRUN and CHARGE_ON are cleared** – a flag to power down the device if KEYRUN and CHARGE_ON signals are cleared;
++* **Delay before setting the internal power down signal** – a delay before turning off the device power when removing KEYRUN and CHARGE_ON or receiving the “Power down request” command, ms.
  === Heater ===
@@ -721,22 +721,24 @@
  In this section:
--* Enable – a flag to enable the heater control;
--* Minimum cell temperature, °C;
--* Tolerant cell temperature, °C;
--* Delay before starting the heater, millisecond;
--* Delay before stopping the heater, millisecond;
--* Switch off the heater on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
++* **Enable **– a flag to enable the heater control;
++* **Minimum cell temperature**, °C;
++* **Tolerant cell temperature**, °C;
++* **Delay before starting the heater**, millisecond;
++* **Delay before stopping the heater**, millisecond;
++* **Errors 1, 2 to open the heater** – bitfields to choose the errors which will open the heater.
  As a result of operating the heating algorithm, the “Heater” signal is generated.
  Conditions for signal generation:
--* the minimum temperature among all cells of the battery is less than the “Minimum cell temperature” value during the “Delay before starting the heater” time.
++* the minimum temperature among all cells of the battery is less than the “Minimum cell temperature” value during the “Delay before starting the heater” time;
++* there are no errors from "Errors 1, 2..." bitfields.
  Conditions for clearing the signal:
--* the minimum temperature among all cells of the battery is greater than the “Tolerant cell temperature” value during the “Delay before stopping the heater” time.
++* the minimum temperature among all cells of the battery is greater than the “Tolerant cell temperature” value during the “Delay before stopping the heater” time;
++* there is an error from "Errors 1, 2..." bitfields.
  (% class="box infomessage" %)
  (((
@@ -751,22 +751,24 @@
  In this section:
--* Enable – a flag to enable the cooler control;
--* Maximum cell temperature, °C;
--* Tolerant cell temperature, °C;
--* Delay before starting the cooler, millisecond;
--* Delay before stopping the cooler, millisecond;
--* Switch off the cooler contactor on errors (Undervoltage, Overcurrent, Low temperature, Short circuit or Critical error).
++* **Enable** – a flag to enable the cooler control;
++* **Maximum cell temperature**, °C;
++* **Tolerant cell temperature**, °C;
++* **Delay before starting the cooler**, millisecond;
++* **Delay before stopping the cooler**, millisecond;
++* **Errors 1, 2 to open the cooler **– bitfields to choose the errors which will open the cooler.
  As a result of operating the cooling algorithm, the "Cooler" signal is generated.
  Conditions for signal generation:
--* the maximum temperature among all cells of the battery is greater than the “Maximum cell temperature” value during the “Delay before starting the cooler” time.
++* the maximum temperature among all cells of the battery is greater than the “Maximum cell temperature” value during the “Delay before starting the cooler” time;
++* there are no errors from "Errors 1, 2..." bitfields.
  Conditions for clearing the signal:
--* the maximum temperature among all cells of the battery is less than the “Tolerant cell temperature” value during the “Delay before stopping the cooler” time.
++* the maximum temperature among all cells of the battery is less than the “Tolerant cell temperature” value during the “Delay before stopping the cooler” time;
++* there is an error from "Errors 1, 2..." bitfields.
  (% class="box infomessage" %)
  (((
@@ -775,6 +775,11 @@
  === High voltage ===
++(% class="box warningmessage" %)
++(((
++This section is not available on BMS Main 2R.
++)))
++
  The BMS Main 3 device has an ability to measure high voltages before and after contactors.
  To change the parameters of high voltage fault, select the "Control → High voltage" section:
@@ -783,9 +783,9 @@
  In this section:
--* Enable – a flag to enable High voltage control;
--* Delay before clearing the High voltage fault, second;
--* Lock the High voltage fault.
++* **Enable **– a flag to enable High voltage control;
++* **Delay before clearing the High voltage fault**, second;
++* **Lock the High voltage fault**.
  The BMS Main 3 implements a self-diagnostics of high-voltage measurement lines. If measurement line breaks or high-voltage polarity is wrong, “High voltage fault” is generated.
@@ -798,7 +798,7 @@
  The battery discharge characteristic – the dependence Uocv = Uocv(DOD) – is used to determine the tabular dependence Uocv = Uocv(SOC, t°C), which is necessary for calculating the battery charge level.
--The BMS Main 3 device can automatically determine the battery discharge characteristic.
++The BMS Main 3 / BMS Main 2R device can automatically determine the battery discharge characteristic.
  Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS:
@@ -811,18 +811,14 @@
  In this section:
--* Enable – a flag to enable cell analysis;
--* Discharge step, Ah;
--* Delta voltage – a maximum allowable voltage drop for the cell, V;
--* Logic index, Cell index – a position of the analyzed cell;
--* Analyse the most discharged cell – a flag to analyse of the least charged cell (in this case, the values “Logic index” and “Cell index” are ignored).
++* **Enable **– a flag to enable cell analysis;
++* **Discharge step**, Ah;
++* **Delta voltage** – a maximum allowable voltage drop for the cell, V;
++* **Logic index, Cell index** – a position of the analyzed cell;
++* **Analyse the most discharged cell** – a flag to analyse of the least charged cell (in this case, the values “Logic index” and “Cell index” are ignored).
--Discharge step should be set equal to
++Discharge step should be set equal to С/21, where C is the cell capacity.
--Discharge step= С/21,
--
--where C is the cell capacity.
--
  The discharge characteristic will be constructed for the given cell (its position is determined by the fields “Logic index” and “Cell index”).
  The algorithm for determining the discharge characteristic of the battery will be started if the “Enable” flag is set. From this moment, the control of the discharge contactor is performed by this algorithm.

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