Changes for page 3.3 Control

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

From 24.5 to 24.4 From 28.1 to 27.4

From version 27.4

edited by Admin
on 2025/02/24 12:33

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To version 24.5

edited by Admin
on 2025/02/24 12:22

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@@ -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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