Changes for page 3.3 Control

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

From 22.1 to 23.1 From 24.2 to 24.3

From version 23.1

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

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To version 24.2

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on 2025/02/24 12:17

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@@ -293,6 +293,71 @@
  * Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset;
  * Errors 1, 2 to open the main contactor – bitfields to choose the errors which will open the main contactor.
++=== Charging status ===
++
++To change the parameters of charging process status, select the "Control → Charging status" section:
++
++[[image:1740399071280-626.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
++In this section:
++
++* Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A;
++* Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
++* 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;
++* Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
++
++(% class="box infomessage" %)
++(((
++**Note:** The "Allow charging" signal activates 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.
++)))
++
++=== Discharging status ===
++
++To change the parameters of discharging process status, select the "Control → Discharging status" section:
++
++[[image:1740399096018-240.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]
++In this section:
++
++* Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
++* Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
++* 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;
++* 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.
++
++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.
++
++[[image:1740399150173-761.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="155" width="800"]]
++
++To change the parameters of precharge contactor, select the "Control → Precharge" section:
++
++* Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
++* Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
++* 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:
++
++* the precharge current does not decrease during the "Precharge time" after "Number of precharging attempts";
++* power dissipated on the precharge resistor is above the maximum value during the “Delay before setting the 'Precharge error' when checking power” time.
++
++(% class="box warningmessage" %)
++(((
++Behavior of contactors at “Precharge error” is configured in corresponding contactor settings!
++)))
++
  === 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.
@@ -299,51 +299,40 @@
  The device supports three charge control algorithms:
--* charging is always allowed;
--* charging is allowed when there is a signal “Charger connected”;
--* charging is allowed when there is a signal “Charge request”.
++* 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 charging contactor and the allow charging contactor are always closed. If at least one of the errors appears:
++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:
--* Overvoltage;
--* Overcurrent;
--* High temperature (CH);
--* Low temperature (CH);
--* HYG offline (optional);
--* Combilift offline (optional);
--* Spirit offline (optional);
--* Spirit charger error (optional);
--* Short circuit (optional);
--* High contactor temperature (optional);
--* CH contactor cycles error;
--* Critical error
++* Service reset;
++* Power down request;
++* Inhibit charging,
  both contactors are open (no current flows).
--When the algorithm "**On Charger connected**" is selected, the control is performed as follows:
++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 list above), then through the delay time T,,on,, the charging contactor and the allow charging contactor close;
++* 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 in the list above occur the charging contactor and allow charging contactor open.
++* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open.
--When the "**On Charge request**" algorithm selected, the control is performed as follows:
++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 list above), then through the delay time T,,on,, the charging contactor and the allow charging contactor close;
++* 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 in the list above occur the charging contactor and allow charging contactor open.
++* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open.
  (% class="box infomessage" %)
  (((
--Note: when errors occur in the system, the **charging **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
++**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).
  )))
--When the power down request occurs, the allow charging contactor opens immediately and the charging contactor opens after the delay T,,off,,. Reclosing the charging contactor and allow charging contactor is performed if the power down request is removed.
--
  To change the parameters of the battery charge control algorithm, select the "Control → Charge" section:
--[[image:1733746766516-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="319" width="800"]]
++[[image:1740399363134-722.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="306" width="800"]]
  In this section:

1740399363134-722.png

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