Changes for page 3.3 Control

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

From 76.14 to 76.15 From 76.18 to 76.19

From version 76.15

edited by Admin
on 2026/03/31 13:30

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To version 76.18

edited by Admin
on 2026/03/31 14:16

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@@ -446,7 +446,7 @@
  There are two signals that serve charging the battery: "Charging" and "Allow charging". With the help of the "Allow charging" signal, the BMS commands the charger to start or stop charging.
--The device supports three charge control algorithms:
++BMS Main 3 / BMS Main 2R supports three charge control algorithms:
  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:
@@ -459,16 +459,12 @@
  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 the signal “Charger connected” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens.
  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 the signal “Charge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens;
  (% class="box infomessage" %)
  (((
@@ -497,10 +497,12 @@
  === Discharge ===
--The device controls the discharging contactor to connect battery to the load.
++The BMS Main 3 / BMS Main 2R device controls the discharging contactor to connect battery to the load.
--The device supports three algorithms to control battery discharging: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:
++BMS Main 3 / BMS Main 2R supports three algorithms to control battery discharging:
++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
@@ -528,32 +528,46 @@
  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 Charge/Discharge contactor, which combines algorithms of charging and discharging contactor.
  Charge/Discharge contactor 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 charge/discharge contactor depends on Charge and Discharge algorithms and their signals and behaves
--TBA
++* as Charging contactor if "Charging" signal is set;
++* as Discharging contactor 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.
++
++
++**Independent (on Charge request or Discharge request)** - 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).
@@ -565,23 +565,23 @@
  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.
@@ -597,17 +597,17 @@
  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 ===
@@ -644,7 +644,7 @@
  In this section:
--* Enable – a flag to enable cell balancing;
++* **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);

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