Changes for page 3.3 Control

Last modified by Admin on 2025/04/09 12:15

From 24.2 to 24.1 From 28.1 to 27.4

From version 27.4

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on 2025/02/24 12:33

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To version 24.2

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on 2025/02/24 12:17

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@@ -406,15 +406,23 @@
  ** 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;
++* Current corresponding to charging – a current level to generate the "Charging current present" signal, A;
++* Current corresponding to no charging – a current level to clear the "Charging current present" signal, A;
  * 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 (see [[Precharge>>url:http://#HPrecharge]]);
  * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
--* Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor;
  * Custom delay: <error> – specific error delay, 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”;
++* Control the precharging contactor – a flag that allows control of the precharging contactor;
++* Voltage to clear the “Ready to charge” – a threshold voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
++* Voltage to reset the “Ready to charge” – a tolerant voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
++* Delay before recharging – a time after which the previously opened the allow charging contactor closes again, minute; to disable the operation by timeout set "Delay before recharging" to 0.
++(% class="box infomessage" %)
++(((
++Note – The allow charging contactor closes under two independent conditions: 1) 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.
++)))
++
  === Discharge ===
  The device controls the discharging contactor to connect battery to the load.
@@ -421,36 +421,50 @@
  The device 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”.
++* load is always connected;
++* load is connected when there is no signal “Charger connected”;
++* load is connected when there is signal “Discharge request”.
--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:
++When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors appears:
--* Service reset
--* Power down request
--* Inhibit discharging
++* Undervoltage;
++* Overvoltage (optional);
++* Overcurrent;
++* High temperature (DCH);
++* Low temperature (DCH) (optional);
++* HYG offline (optional);
++* Combilift offline (optional);
++* Spirit offline (optional);
++* Spirit charger error (optional);
++* Short circuit (optional);
++* High contactor temperature (optional);
++* DCH contactor cycles error;
++* Critical error
  the discharging contactor opens.
--If the algorithm "**On charger disconnected**" is selected, the control is performed as follows:
++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 is no signal “Charger connected”, the charging contactor is opened and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
++* If the signal “Charger connected” appears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
--When the "**On discharge request**" algorithm selected, the control is performed as follows:
++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”, the charging contactor is opened and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
++* If the signal “Discharge request” disappears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
  (% 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: in case of errors in the system operation, the opening of the **discharging **contactor is performed either immediately or with a delay T,,off,, (depends on the settings described below).
  )))
++The device supports controlling the precharging contactor. The duration of switching on the precharging contactor before closing the discharging (load) contactor is adjusted.
++
++When the power down request occurs, the discharging contactor opens after delay T,,off,,. Reclosing the discharging contactor is performed if the power down request is removed.
++
  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
--[[image:1740399783613-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="311" width="800"]]
++[[image:1733746885414-479.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="319" width="800"]]
  In this section:
@@ -459,51 +459,28 @@
  ** 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;
++* Current corresponding to discharging – a current level to generate the "Discharging current present" signal, А;
++* Current indicating no discharging – a current level to clear the "Discharging current present" signal, А;
  * 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>>path:#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”.
++* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
++* Voltage to clear the “Ready to discharge” – a threshold voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
++* Voltage to reset the “Ready to discharge” – a tolerant voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
  === Charge/Discharge ===
  The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
--Charge/Discharge contactor has three algorithms of operation:
++The charging/discharging contactor combines algorithms of charging and discharging contactor. It behaves as a charging contactor when «Charge request» or «Charger connected» are set, otherwise – as a discharging contactor.
--* 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.
--
--TBA
--
--(% 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).
--)))
--
  The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section:
--[[image:1740400166950-906.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="211" width="800"]]
++[[image:1733746901779-991.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="95" width="800"]]In this section:
--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”.
  === Discharge (AUX) ===
@@ -519,8 +519,8 @@
  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
++[[image:1733746932199-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]]
--[[image:1740400254884-851.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
  In this section:
  * Enable – a flag to activate the auxiliary discharge control;
@@ -527,14 +527,13 @@
  * 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.
++* Minimum voltage – minimum battery voltage, V;
++* Maximum voltage – maximum battery voltage, V;
++* Switch off the discharging (AUX) contactor on errors – the auxiliary (AUX) discharging contactor opens if the following errors occur: Undervoltage, Overcurrent, High temperature (DCH), Short circuit, Critical error.
++===   ===
++
  === Cell balancing ===
  Balancing makes the voltage of all cells be equal to the minimum cell voltage.

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