Changes for page 3.3 Control

Last modified by Admin on 2026/04/30 15:58

From 55.1 to 55.2 From 57.1 to 58.1

From version 55.2

edited by Admin
on 2026/04/30 15:40

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To version 57.1

edited by Admin
on 2026/04/30 15:47

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@@ -30,7 +30,7 @@
  === SOC estimation ===
--The BMS Mini device calculates the state of charge (SOC) of each cell by using following algorithms:
++The BMS Mini S / BMS Mini 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).
@@ -87,7 +87,7 @@
  === SOC correction ===
--The BMS Mini device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[SOC estimation>>doc:||anchor="HSOCestimation"]]).
++The BMS Mini S / BMS Mini device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[SOC estimation>>doc:||anchor="HSOCestimation"]]).
  To configure parameters for periodically correcting the battery state of charge, select the "Control → SOC correction" section:
@@ -95,12 +95,12 @@
  In this section:
--* Enable – a flag to enable SOC correction;
--* Shutdown period – a time the battery is off, day. If the BMS detects on its startup that it was off during the “Shutdown period” time, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t);
--* Correction period – a period of correcting the battery SOC, day. If the BMS detects that the last correction was more than the “Correction period” ago, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t) and tunes it gradually during the “SOC change time”.
--* SOC change time – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;
--* Ignore the linear zone – a flag to ignore linear SOC zone while correction;
--* Last correction timestamp – time when last correction was made.
++* **Enable **– a flag to enable the SOC correction;
++* **Shutdown period** – a time the battery is off, day. If the BMS detects on its startup that it was off during the “Shutdown period” time, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t);
++* **Correction period** – a period of correcting the battery SOC, day. If the BMS detects that the last correction was more than the “Correction period” ago, the BMS recalculates the battery state of charge based on the tabular dependency Uocv = Uocv (SOC, t) and tunes it gradually during the “SOC change time”.
++* **SOC change time** – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;
++* **Ignore the linear zone** – a flag to ignore linear SOC zone while correction (recommended to be unset);
++* **Last correction timestamp** – time when last correction was made.
  === Resistance estimation ===
@@ -134,16 +134,18 @@
  In this section:
--* Current stabilization time, millisecond;
--* Maximum calculation period – maximum time between resistance measurements. If more time has elapsed since the last determination of the stabilized current I,,stable,, than is determined in this field, the resistance calculation is not performed, second;
--* Maximum resistance factor – the coefficient of calculation of the maximum acceptable resistance of the cell;
--* Minimum SOC – minimum cell SOC value for resistance calculation;
--* Maximum SOC – maximum cell SOC value for resistance calculation.
++* **Current stabilization time**, millisecond;
++* **Maximum calculation period** – maximum time between resistance measurements. If more time has elapsed since the last determination of the stabilized current I,,stable,, than is determined in this field, the resistance calculation is not performed, second;
++* **Maximum resistance factor** – the coefficient of calculation of the maximum acceptable resistance of the cell;
++* **Minimum SOC** – minimum cell SOC value for resistance calculation;
++* **Maximum SOC** – maximum cell SOC value for resistance calculation.
  The calculated resistance is accepted by the system as valid (and therefore updated) if its value is in the range from Resistance/2 to “Maximum resistance factor” × Resistance, where "Resistance" is the nominal resistance of the cell (see [[Common settings>>doc:||anchor="HCommonsettings"]]). If the calculated resistance value is greater than the value (Maximum resistance factor × Resistance), the updated resistance value will be equal to the value (Maximum resistance factor × Resistance).
  === Low SOC (signal) ===
++The "Low SOC" is indicative signal that can be assigned to a discrete output or a power switch.
++
  To change the parameters of the generation a signal about low battery level, select the "Control → Low SOC (signal)" section:
  [[image:1740396460923-423.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
@@ -150,12 +150,12 @@
  In this section:
--* Enable – a flag to enable signal generation;
--* Minimum SOC, %;
--* Tolerant SOC, %;
--* Delay before setting the signal, second;
--* Delay before clearing the signal, second;
--* Lock – lock the signal until the device is reset.
++* **Enable **– a flag to enable signal generation;
++* **Minimum SOC**, %;
++* **Tolerant SOC**, %;
++* **Delay before setting the signal**, second;
++* **Delay before clearing the signal**, second;
++* **Lock** – lock the signal until the device is reset.
  Signal generation conditions:
@@ -165,13 +165,10 @@
  * the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time.
--(% class="box infomessage" %)
--(((
--The "Low SOC signal" is indicative and can be output to a discrete output or a power switch.
--)))
--
  === High charging current (signal) ===
++The "High charging current" is indicative signal that can be output to a discrete output or a power switch.
++
  To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section:
  [[image:1740396996935-403.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]]
@@ -178,12 +178,12 @@
  In this section:
--* Enable – a flag to enable signal generation;
--* Maximum charging current, А;
--* Tolerant charging current, А;
--* Delay before setting the signal, second;
--* Delay before clearing the signal, second;
--* Lock – lock the signal until the device is reset.
++* **Enable **– a flag to enable signal generation;
++* **Maximum charging current**, А;
++* **Tolerant charging current**, А;
++* **Delay before setting the signal**, second;
++* **Delay before clearing the signal**, second;
++* **Lock **– lock the signal until the device is reset.
  Signal generation conditions:
@@ -193,16 +193,11 @@
  * the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time.
--(% class="box infomessage" %)
--(((
--The "High charging current" signal is indicative and can be output to a discrete output or a power switch.
--)))
--
  === Charge map ===
--The BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
++The BMS Mini S / BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
--Calculated current values are sending to a charger or an intellectual load over the CAN bus.
++Calculated current values are sent to a charger or an intellectual load over the CAN bus. External devices based on received data provide correct battery operation.
  To configure parameters for determining the charge current limit, select the "Control → Charge map" section:
@@ -209,17 +209,17 @@
  [[image:1740397188247-315.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
  In this section:
--* Enable – a flag to start calculation of the charge current limit;
--* Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
--* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
--* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current** Kcs** depending on __maximum cell SOC__ and battery temperature;
--* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
--* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
--* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
--* Option 3: Limit charge current by the maximum cell voltage - a flag to enable correction of maximum allowable charging current **Kcv** depending on __the maximum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
--* Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
--* Option 4: Limit charge current by the cell temperature - a flag to enable correction of maximum allowable charging current **Kct** depending on maximum cell temperature;
--* Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
++* **Enable **– a flag to start calculation of the charge current limit;
++* **Maximum charge current** – a maximum allowable value of the charge current (under normal conditions), A;
++* **Rate of change** – a rate of change the current limit to a new value (0 is for immediate change), A/s;
++* **Option 1: Limit charge current by the battery SOC and temperature** – a flag to enable correction of maximum allowable charging current** Kcs** depending on __maximum cell SOC__ and battery temperature;
++* **Option 1: SOC x Temperature x Factor** – the dependence of the correction factor on SOC and battery temperature;
++* **Option 2: Limit charge current by the contactor temperature** – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
++* **Option 2: Contactor temperature x Factor** – the dependence of the correction factor on SOC and contactor temperature;
++* **Option 3: Limit charge current by the maximum cell voltage** – a flag to enable correction of maximum allowable charging current **Kcv** depending on __the maximum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
++* **Option 3: Cell voltage x Factor** – the dependence of the correction factor on maximum cell voltage;
++* **Option 4: Limit charge current by the cell temperature** – a flag to enable correction of maximum allowable charging current **Kct** depending on maximum cell temperature;
++* **Option 4: Cell temperature x Factor** – the dependence of the correction factor on maximum cell temperature.
  Value of the charge current limit at given SOC, temperature, contactors temperature, maximum cell voltage and maximum cell temperature is calculated as follows:
@@ -227,7 +227,7 @@
  === Discharge map ===
--The BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
++The BMS Mini S / BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
  Calculated current values are sending to a charger or an intellectual load over the CAN bus.
@@ -237,17 +237,17 @@
  In this section:
--* Enable – a flag to start calculation of the discharge current limit;
--* Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;
--* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
--* Option 1: Limit discharging current by the battery SOC and temperature – a flag to enable correction of maximum allowable discharging current **Kds **depending on __minimum cell SOC__ and temperature;
--* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
--* Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
--* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
--* Option 3: Limit discharge current by the cell voltage - a flag to enable correction of maximum allowable discharging current **Kdv** depending on __the minimum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
--* Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;
--* Option 4: Limit discharge current by the cell temperature - a flag to enable correction of maximum allowable discharging current **Kdt** depending on maximum cell temperature;
--* Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.
++* **Enable **– a flag to start calculation of the discharge current limit;
++* **Maximum discharge current** – a maximum allowable value of the discharge current (under normal conditions), A;
++* **Rate of change** – a rate of change the current limit to a new value (0 is for immediate change), A/s;
++* **Option 1: Limit discharging current by the battery SOC and temperature** – a flag to enable correction of maximum allowable discharging current **Kds **depending on __minimum cell SOC__ and temperature;
++* **Option 1: SOC x Temperature x Factor** – the dependence of the correction factor on SOC and battery temperature;
++* **Option 2: Limit discharge current by the contactor temperature** – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
++* **Option 2: Contactor temperature x Factor** – the dependence of the correction factor on SOC and contactor temperature;
++* **Option 3: Limit discharge current by the cell voltage** – a flag to enable correction of maximum allowable discharging current **Kdv** depending on __the minimum cell U,,ocv,, voltage__ (corrected due to current and cell resistance)
++* **Option 3: Cell voltage x Factor** – the dependence of the correction factor on minimum cell voltage;
++* **Option 4: Limit discharge current by the cell temperature** – a flag to enable correction of maximum allowable discharging current **Kdt** depending on maximum cell temperature;
++* **Option 4: Cell voltage x Factor** – the dependence of the correction factor on minimum cell temperature.
  Value of the discharge current limit at given SOC, temperature, contactors temperature, minimum cell voltage and maximum cell temperature is calculated as follows:
@@ -255,26 +255,23 @@
  === Main contactor ===
--The BMS Mini device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in a case of sealing of the charging or discharging contactors.
++The BMS Mini S / BMS Mini device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in case of sealing of the charging or discharging contactors.
  The Main contactor algorithm supports the following modes:
--* Always on;
--* Automatic.
++In **“Always on”** mode main contactor closes if all the following is true:
--In “Always on” mode main contactor closes if all the following is true:
--
  * Other contactors are open;
--* There are no errors from the "Errors 1, 2 ..." bitfileds.
++* There are __no errors__ from the "Errors 1, 2 ..." bitfileds.
--In “Always on” mode main contactor opens if all the following is true:
++and opens if all the following is true:
  * Other contactors are open;
--* There is an error from the the "Errors 1, 2 ..." bitfileds.
++* There is __an error__ from the the "Errors 1, 2 ..." bitfileds.
--In “Automatic” mode, the main contactor closes by internal algorithms at the same time with other contactors.
++In **“Automatic”** mode, the main contactor closes by internal algorithms at the same time with other contactors.
--In “On demand” mode, the main contactor closes by external the “Close Main contactor” request.
++In **“On demand”** mode, the main contactor closes by external the “Close Main contactor” request.
  (% class="box infomessage" %)
  (((
@@ -283,38 +283,38 @@
  To change the parameters of the main contactor, select the "Control → Main contactor" section:
--[[image:1740397558976-651.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]]
++[[image:1777563933065-421.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]]
  In this section:
--* Enable – a flag to enable the main contactor control;
--* Algorithm – main contactor control algorithm:
--** Always on – contactor is always closed;
--** Automatic – contactor closes by internal charge and discharge algorithms;
--** On demand – contactor is closed by an external request;
--* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed;
--* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, s;
--* 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.
++* **Enable **– a flag to enable the main contactor control;
++* **Algorithm** – main contactor control algorithm:
++** **Always on** – contactor is always closed;
++** **Automatic** – contactor closes by internal charge and discharge algorithms;
++** **On demand** – contactor is closed by an external request;
++* **Time to keep the contactor closed before closing the others** – a time for other contactors to be open after the main contactor is closed;
++* **Delay before opening the contactor** – a time which is used to detect conditions for opening the contactor, s;
++* **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:1762774819522-147.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="140" 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;
--* Use actual voltage to generate the "Ready to charge" signal – a flag to disable voltage correction for "Ready to charge" signal;
--* Use actual voltage to generate the "Ready to charge" signal if the current is negative – a flag to disable voltage correction for "Ready to charge" signal only at discharging current;
--* Voltage to clear the “Ready to charge” – a threshold U,,ocv,, (corrected due to current and cell resistance) 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 U,,ocv,, (corrected due to current and cell resistance) 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;
--* Check the 'Charge current limit' value to generate the 'Ready to charge' – a flag to enable check of "Charging current limit" to generate the "Ready to charge" signal;
--* Charge current limit to clear the 'Ready to charge' – a threshold charging current limit value, A; if the limit is //above //this level, the “Ready to charge” signal is cleared;
--* Charge current limit to set the 'Ready to charge' – a tolerant charging current limit value, A; if the limit is //below //this level, the “Ready to charge” signal is set;
--* Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
++* **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 U,,ocv,, (corrected due to current and cell resistance) 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 U,,ocv,, (corrected due to current and cell resistance) 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;
++* **Use actual voltage to generate the "Ready to charge" signal** – a flag to disable voltage correction for "Ready to charge" signal;
++* **Treat negative currents as zero currents for generating the "Ready to charge" signal** – a flag to disable voltage correction for "Ready to charge" signal at discharging current;
++* **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;
++* **Check the 'Charge current limit' value to generate the 'Ready to charge'** – a flag to enable check of "Charging current limit" to generate the "Ready to charge" signal;
++* **Charge current limit to clear the 'Ready to charge'** – a threshold charging current limit value, A; if the limit is //above //this level, the “Ready to charge” signal is cleared;
++* **Charge current limit to set the 'Ready to charge'** – a tolerant charging current limit value, A; if the limit is //below //this level, the “Ready to charge” signal is set;
++* **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" %)
  (((
@@ -488,7 +488,7 @@
  === Charge/Discharge ===
--The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
++The BMS Mini S / 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:
@@ -525,7 +525,7 @@
  === Discharge (AUX) ===
--The BMS Mini 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 Mini S / BMS Mini 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.
@@ -578,9 +578,9 @@
  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 Mini device 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 Mini S / BMS Mini device 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 Mini device can force a cell balancing, if its voltage is higher than estimated value.
++BMS Mini S / BMS Mini device can force a cell balancing, if its voltage is higher than estimated value.
  To change the cell balancing parameters, select the "Control → Cell balancing" section:
@@ -604,7 +604,7 @@
  === Power down ===
--The BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time.
++The BMS Mini S / BMS Mini 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:
@@ -611,7 +611,7 @@
  * the battery voltage is below the minimum level;
  * the “Charger connected” signal is cleared for 60 seconds.
--The BMS Mini device also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” for the set time.
++The BMS Mini S / BMS Mini device also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” for the set time.
  To change the parameters of the power down control, select the "Control → Power down" section:
@@ -687,7 +687,7 @@
  Discharge characteristics of the battery – the dependence Uocv = Uocv (DOD) – is used to determine the tabular dependence Uocv = Uocv (SOC, t °C), which is necessary for calculating the state of charge of the battery.
--The BMS Mini device can automatically determine the battery discharge characteristic.
++The BMS Mini S / BMS Mini device can automatically determine the battery discharge characteristic.
  Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS:

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Changes for page 3.3 Control

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