Changes for page 3.3 Control
Last modified by Admin on 2026/04/30 15:58
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... ... @@ -12,35 +12,37 @@ 12 12 13 13 In this section: 14 14 15 -* Cell capacity – nominal capacity of cells, Ah; 16 -* Cell resistance – nominal (maximum) internal resistance of the cell, Ohm; 17 -* Relax time (after charging) – a relaxation time after charging, second; 18 -* Relax time (a tfer discharging) – the relaxation time after discharging, second;19 -* Reset parameters– a command to reset cells state of charge, capacity, and resistance. 15 +* **Cell capacity** – nominal capacity of cells, Ah; 16 +* **Cell resistance** – nominal (maximum) internal resistance of the cell, Ohm; 17 +* **Relax time (after charging)** – a relaxation time after charging, second; 18 +* **Relax time (after discharging)** – the relaxation time after discharging, second; 19 +* **Reset parameters **– a command to reset cells state of charge, capacity, and resistance. 20 20 21 -The values “Capacity” and “Resistance” are used to calculate the SOC of cells and the battery. 21 +The values “**Capacity**” and “**Resistance**” are used to calculate the SOC of cells and the battery. 22 22 23 -The values of “Relax time” are used to determine the state of the battery. If the battery is in a state of relaxation, the system recalculates the voltage on the cells to the state of charge of the battery. 23 +The values of “**Relax time**” are used to determine the state of the battery. If the battery is in a state of relaxation, the system recalculates the voltage on the cells to the state of charge of the battery. 24 24 25 -The “Reset parameters” will reset: 25 +The “**Reset parameters**” is used for starting-up and adjustment of the battery and will reset: 26 26 27 27 * state of charge (new cell SOC values will be calculated based on cell voltage and “Uocv (open-circuit voltage) table”: in the “Control → SOC estimation” section); 28 28 * cell resistance to “Cell resistance” value; 29 29 * battery capacity to “Cell capacity” value. 30 30 31 -The “Reset parameters” command is used for starting-up and adjustment of the battery. 32 - 33 33 === SOC estimation === 34 34 35 -The BMS Mini device calculates the state of charge of the battery(SOC)usingtwo algorithms:33 +The BMS Mini S / BMS Mini device calculates the state of charge (SOC) of each cell by using following algorithms: 36 36 37 -* by open circuit voltage; 38 -* by voltage and current. 35 +The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C). 39 39 40 - It isrecommendedtousethealgorithmof calculation ofSOC by voltageandcurrent.37 +The **“Current and voltage (simplified)”** SOC calculation algorithm works as follows: 41 41 42 -To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section: 39 +* if I = 0, the battery is in the state of relaxation and the cell voltage Uocv is outside the [U,,ocv[point 1],,; U,,ocv[point 2],,], the SOC calculation is based on the tabular dependency Uocv = Uocv(SOC, t °C); 40 +* in any other cases, the SOC value is proportional to the charge (coulomb) passed through the battery (current time integral). 43 43 42 +The **“Current and voltage (enhanced)” **SOC calculation algorithm differs from the simplified algorithm by online correction of the effective capacity. When using this algorithm, it is necessary to fine tune the tabular dependence Uocv = Uocv (SOC, t °C). 43 + 44 +To change the algorithm for calculating the SOC, select the "Control → SOC estimation" section: 45 + 44 44 [[image:1733746733477-590.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="166" width="800"]] 45 45 46 46 The following estimation algorithms supported: ... ... @@ -62,28 +62,30 @@ 62 62 63 63 [[image:1733746733478-414.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="167" width="800"]] 64 64 65 - The followingbattery FinalSOCcalculationmethods are supported:67 +In this section: 66 66 67 -* Minimal SOC – SOC of the modular battery is assumed to be the minimum SOC among the battery modules; 68 -* Average SOC – SOC of the modular battery is taken equal to the arithmetic average of the SOC of the battery modules; 69 -* Min-Max SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if any cell has 100% SOC, b) 0% if any cell has 0% SOC; 70 -* Max-Min SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if all cells have 100% SOC, b) 0% if all cells have 0% SOC. 69 +* **Algorithm:** 70 +** **Voltage **– by open circuit voltage; 71 +** **Current and voltage (simplified)** – recommended for LFP cells; 72 +** **Current and voltage (enhanced)** – recommended for NMC cells: 73 +* **Final SOC** – method of calculating overall SOC of battery: 74 +** **Minimal SOC** – the battery SOC is assumed to be the minimum SOC among the cells; 75 +** **Average SOC** – the battery SOC is taken equal to the arithmetic average of the cell SOC; 76 +** **Min-Max SOC** – the battery SOC is calculated based on the minimum and maximum SOC of the cells (recommended). Final SOC will be a) 100% if __any cell__ has 100% SOC, b) 0% if __any cell__ has 0% SOC; 77 +** **Max-Min SOC** – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if __all cells__ have 100% SOC, b) 0% if __all// //cells__ have 0% SOC. 78 +* **Scale the final SOC** – a flag to scale the battery SOC by the following values; 79 +* **SOC corresponding to 0%** – the battery SOC that sets to be 0%; 80 +* **SOC corresponding to 100%** – the battery SOC that sets to be 100%. 81 +* **Uocv (open-circuit voltage) table** – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries); 82 +* **Linear zone** - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly: 83 +** **Linear zone: point 1** – starting point of the Uocv linear zone; 84 +** **Linear zone: point 2** – ending point of the Uocv linear zone; 85 +* **Coulomb counting correction (temperature)** – the dependence of battery capacity on temperature; 86 +* **Coulomb counting correction (cycles)** – the dependence of battery capacity on the number of charge-discharge cycles. 71 71 72 -Other parameters: 73 - 74 -* Scale the final SOC – a flag to scale the battery SOC by the following values; 75 -* SOC corresponding to 0% – the battery SOC that sets to be 0%; 76 -* SOC corresponding to 100% – the battery SOC that sets to be 100%. 77 -* Uocv (open-circuit voltage) table – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries); 78 -* Linear zone - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly: 79 -** Linear zone: point 1 – starting point of the Uocv linear zone; 80 -** Linear zone: point 2 – ending point of the Uocv linear zone; 81 -* Coulomb counting correction (temperature) – the dependence of battery capacity on temperature; 82 -* Coulomb counting correction (cycles) – the dependence of battery capacity on the number of charge-discharge cycles. 83 - 84 84 === SOC correction === 85 85 86 -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"]]). 90 +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"]]). 87 87 88 88 To configure parameters for periodically correcting the battery state of charge, select the "Control → SOC correction" section: 89 89 ... ... @@ -91,12 +91,12 @@ 91 91 92 92 In this section: 93 93 94 -* Enable – a flag to enable SOC correction; 95 -* 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);96 -* 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”.97 -* SOC change time – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;98 -* Ignore the linear zone – a flag to ignore linear SOC zone while correction;99 -* Last correction timestamp – time when last correction was made.98 +* **Enable **– a flag to enable the SOC correction; 99 +* **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); 100 +* **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”. 101 +* **SOC change time** – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute; 102 +* **Ignore the linear zone** – a flag to ignore linear SOC zone while correction (recommended to be unset); 103 +* **Last correction timestamp** – time when last correction was made. 100 100 101 101 === Resistance estimation === 102 102 ... ... @@ -130,16 +130,18 @@ 130 130 131 131 In this section: 132 132 133 -* Current stabilization time, millisecond; 134 -* 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;135 -* Maximum resistance factor – the coefficient of calculation of the maximum acceptable resistance of the cell;136 -* Minimum SOC – minimum cell SOC value for resistance calculation;137 -* Maximum SOC – maximum cell SOC value for resistance calculation.137 +* **Current stabilization time**, millisecond; 138 +* **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; 139 +* **Maximum resistance factor** – the coefficient of calculation of the maximum acceptable resistance of the cell; 140 +* **Minimum SOC** – minimum cell SOC value for resistance calculation; 141 +* **Maximum SOC** – maximum cell SOC value for resistance calculation. 138 138 139 139 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). 140 140 141 141 === Low SOC (signal) === 142 142 147 +The "Low SOC" is indicative signal that can be assigned to a discrete output or a power switch. 148 + 143 143 To change the parameters of the generation a signal about low battery level, select the "Control → Low SOC (signal)" section: 144 144 145 145 [[image:1740396460923-423.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]] ... ... @@ -146,12 +146,12 @@ 146 146 147 147 In this section: 148 148 149 -* Enable – a flag to enable signal generation; 150 -* Minimum SOC, %; 151 -* Tolerant SOC, %; 152 -* Delay before setting the signal, second; 153 -* Delay before clearing the signal, second; 154 -* Lock – lock the signal until the device is reset.155 +* **Enable **– a flag to enable signal generation; 156 +* **Minimum SOC**, %; 157 +* **Tolerant SOC**, %; 158 +* **Delay before setting the signal**, second; 159 +* **Delay before clearing the signal**, second; 160 +* **Lock** – lock the signal until the device is reset. 155 155 156 156 Signal generation conditions: 157 157 ... ... @@ -161,13 +161,10 @@ 161 161 162 162 * the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time. 163 163 164 -(% class="box infomessage" %) 165 -((( 166 -The "Low SOC signal" is indicative and can be output to a discrete output or a power switch. 167 -))) 168 - 169 169 === High charging current (signal) === 170 170 172 +The "High charging current" is indicative signal that can be output to a discrete output or a power switch. 173 + 171 171 To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section: 172 172 173 173 [[image:1740396996935-403.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]] ... ... @@ -174,12 +174,12 @@ 174 174 175 175 In this section: 176 176 177 -* Enable – a flag to enable signal generation;178 -* Maximum charging current, А; 179 -* Tolerant charging current, А; 180 -* Delay before setting the signal, second; 181 -* Delay before clearing the signal, second; 182 -* Lock – lock the signal until the device is reset. 180 +* **Enable **– a flag to enable signal generation; 181 +* **Maximum charging current**, А; 182 +* **Tolerant charging current**, А; 183 +* **Delay before setting the signal**, second; 184 +* **Delay before clearing the signal**, second; 185 +* **Lock **– lock the signal until the device is reset. 183 183 184 184 Signal generation conditions: 185 185 ... ... @@ -189,16 +189,11 @@ 189 189 190 190 * the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time. 191 191 192 -(% class="box infomessage" %) 193 -((( 194 -The "High charging current" signal is indicative and can be output to a discrete output or a power switch. 195 -))) 196 - 197 197 === Charge map === 198 198 199 -The BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 197 +The BMS Mini S / BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 200 200 201 -Calculated current values are sen dingto a charger or an intellectual load over the CAN bus.199 +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. 202 202 203 203 To configure parameters for determining the charge current limit, select the "Control → Charge map" section: 204 204 ... ... @@ -205,17 +205,17 @@ 205 205 [[image:1740397188247-315.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]] 206 206 In this section: 207 207 208 -* Enable – a flag to start calculation of the charge current limit; 209 -* Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;210 -* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;211 -* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current** Kcs**depending on SOCand battery temperature;212 -* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;213 -* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current**Kcc**depending on contactor temperature;214 -* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;215 -* Option 3: Limit charge current by the maximum cell voltage -a flag to enable correction of maximum allowable charging current**Kcv**depending on maximum cell voltage;216 -* Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;217 -* 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;218 -* Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.206 +* **Enable **– a flag to start calculation of the charge current limit; 207 +* **Maximum charge current** – a maximum allowable value of the charge current (under normal conditions), A; 208 +* **Rate of change** – a rate of change the current limit to a new value (0 is for immediate change), A/s; 209 +* **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; 210 +* **Option 1: SOC x Temperature x Factor** – the dependence of the correction factor on SOC and battery temperature; 211 +* **Option 2: Limit charge current by the contactor temperature** – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature; 212 +* **Option 2: Contactor temperature x Factor** – the dependence of the correction factor on SOC and contactor temperature; 213 +* **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) 214 +* **Option 3: Cell voltage x Factor** – the dependence of the correction factor on maximum cell voltage; 215 +* **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; 216 +* **Option 4: Cell temperature x Factor** – the dependence of the correction factor on maximum cell temperature. 219 219 220 220 Value of the charge current limit at given SOC, temperature, contactors temperature, maximum cell voltage and maximum cell temperature is calculated as follows: 221 221 ... ... @@ -223,7 +223,7 @@ 223 223 224 224 === Discharge map === 225 225 226 -The BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 224 +The BMS Mini S / BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 227 227 228 228 Calculated current values are sending to a charger or an intellectual load over the CAN bus. 229 229 ... ... @@ -233,17 +233,17 @@ 233 233 234 234 In this section: 235 235 236 -* Enable – a flag to start calculation of the discharge current limit; 237 -* Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;238 -* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;239 -* Option 1: Limit discharging current by the battery SOC and temperature – a flag to enable correction of maximum allowable discharging current**Kds **depending on SOCand temperature;240 -* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;241 -* Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current**Kdc**depending on contactor temperature;242 -* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;243 -* Option 3: Limit discharge current by the cell voltage -a flag to enable correction of maximum allowable discharging current**Kdv**depending on minimum cell voltage;244 -* Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;245 -* 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;246 -* Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.234 +* **Enable **– a flag to start calculation of the discharge current limit; 235 +* **Maximum discharge current** – a maximum allowable value of the discharge current (under normal conditions), A; 236 +* **Rate of change** – a rate of change the current limit to a new value (0 is for immediate change), A/s; 237 +* **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; 238 +* **Option 1: SOC x Temperature x Factor** – the dependence of the correction factor on SOC and battery temperature; 239 +* **Option 2: Limit discharge current by the contactor temperature** – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature; 240 +* **Option 2: Contactor temperature x Factor** – the dependence of the correction factor on SOC and contactor temperature; 241 +* **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) 242 +* **Option 3: Cell voltage x Factor** – the dependence of the correction factor on minimum cell voltage; 243 +* **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; 244 +* **Option 4: Cell voltage x Factor** – the dependence of the correction factor on minimum cell temperature. 247 247 248 248 Value of the discharge current limit at given SOC, temperature, contactors temperature, minimum cell voltage and maximum cell temperature is calculated as follows: 249 249 ... ... @@ -251,26 +251,23 @@ 251 251 252 252 === Main contactor === 253 253 254 -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 acase of sealing of the charging or discharging contactors.252 +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. 255 255 256 256 The Main contactor algorithm supports the following modes: 257 257 258 -* Always on; 259 -* Automatic. 256 +In **“Always on”** mode main contactor closes if all the following is true: 260 260 261 -In “Always on” mode main contactor closes if all the following is true: 262 - 263 263 * Other contactors are open; 264 -* There are no errorsfrom the "Errors 1, 2 ..." bitfileds.259 +* There are __no errors__ from the "Errors 1, 2 ..." bitfileds. 265 265 266 - In “Always on” modemain contactor opens if all the following is true:261 +and opens if all the following is true: 267 267 268 268 * Other contactors are open; 269 -* There is an errorfrom the the "Errors 1, 2 ..." bitfileds.264 +* There is __an error__ from the the "Errors 1, 2 ..." bitfileds. 270 270 271 -In “Automatic”mode, the main contactor closes by internal algorithms at the same time with other contactors.266 +In **“Automatic”** mode, the main contactor closes by internal algorithms at the same time with other contactors. 272 272 273 -In “On demand”mode, the main contactor closes by external the “Close Main contactor” request.268 +In **“On demand”** mode, the main contactor closes by external the “Close Main contactor” request. 274 274 275 275 (% class="box infomessage" %) 276 276 ((( ... ... @@ -279,20 +279,99 @@ 279 279 280 280 To change the parameters of the main contactor, select the "Control → Main contactor" section: 281 281 282 -[[image:17 40397558976-651.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]]277 +[[image:1777563933065-421.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]] 283 283 284 284 In this section: 285 285 286 -* Enable – a flag to enable the main contactor control; 287 -* Algorithm – main contactor control algorithm:288 -** Always on – contactor is always closed;289 -** Automatic – contactor closes by internal charge and discharge algorithms;290 -** On demand – contactor is closed by an external request;291 -* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed;292 -* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, s;293 -* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset;294 -* Errors 1, 2 to open the main contactor – bitfields to choose the errors which will open the main contactor.281 +* **Enable **– a flag to enable the main contactor control; 282 +* **Algorithm** – main contactor control algorithm: 283 +** **Always on** – contactor is always closed; 284 +** **Automatic** – contactor closes by internal charge and discharge algorithms; 285 +** **On demand** – contactor is closed by an external request; 286 +* **Time to keep the contactor closed before closing the others** – a time for other contactors to be open after the main contactor is closed; 287 +* **Delay before opening the contactor** – a time which is used to detect conditions for opening the contactor, s; 288 +* **Keep the contactor open until the device is restarted** – a flag for keeping the main contactor open until the system is reset; 289 +* **Errors 1, 2 to open the main contactor** – bitfields to choose the errors which will open the main contactor. 295 295 291 +=== Charging status === 292 + 293 +To change the parameters of charging process status, select the "Control → Charging status" section: 294 + 295 + 296 +In this section: 297 + 298 +* **Current to set the "Charging current present"** – a current level to generate the "Charging current present" signal, A; 299 +* **Current to clear the "Charging current present"** – a current level to clear the "Charging current present" signal, A; 300 +* **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; 301 +* **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; 302 +* **Use actual voltage to generate the "Ready to charge" signal** – a flag to disable voltage correction for "Ready to charge" signal; 303 +* **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; 304 +* **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; 305 +* **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; 306 +* **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; 307 +* **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; 308 +* **Errors 1, 2 to clear the "Ready to charge"** – bitfields to choose the errors which will clear the "Ready to charge" signal. 309 + 310 +(% class="box infomessage" %) 311 +((( 312 +**Note:** The "Allow charging" signal activates under two independent conditions: 313 +1) the voltage on the cells reaches the “Voltage to reset the “Ready to charge"” level and 314 +2) the "Delay before recharging" time has passed since the opening of the allow charging contactor. 315 +))) 316 + 317 +=== Discharging status === 318 + 319 +To change the parameters of discharging process status, select the "Control → Discharging status" section: 320 + 321 +[[image:1762774840204-111.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="800"]]In this section: 322 + 323 +* Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А; 324 +* Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А; 325 +* Use actual voltage to generate the "Ready to discharge" signal – a flag to disable voltage correction for "Ready to discharge" signal; 326 +* Use actual voltage to generate the "Ready to discharge" signal if the current is positive – a flag to disable voltage correction for "Ready to discharge" signal only at charging current; 327 +* Voltage to clear the “Ready to discharge” – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared; 328 +* Voltage to reset the “Ready to discharge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set; 329 +* Check the 'Discharge current limit' value to generate the 'Ready to discharge' – a flag to enable check of "Discharging current limit" to generate the "Ready to discharge" signal; 330 +* Discharge current limit to clear the 'Ready to discharge' – a threshold discharging current limit value, A; if the limit is //above //this level, the “Ready to discharge” signal is cleared; 331 +* Discharge current limit to set the 'Ready to discharge' – a tolerant discharging current limit value, A; if the limit is //below //this level, the “Ready to discharge” signal is set; 332 +* Clear the 'Ready to discharge' signal if the 'Low SOC' signal is set; 333 +* Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal. 334 + 335 +=== Precharge === 336 + 337 +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. 338 + 339 +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. 340 + 341 +To change the parameters of precharge contactor, select the "Control → Precharge" section: 342 + 343 +[[image:1754931813173-804.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="172" width="800"]] 344 + 345 +In this section: 346 + 347 +* Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A; 348 +* Keep the precharging relay closed until precharge is finished – a flag to ignore the Precharge time and wait precharging to finish before open precharge relay; 349 +* Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error"; 350 +* Delay before current measurement – a delay before first current measurement after closing precharge, millisecond; 351 +* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond; 352 +* Relaxation between attempts – a duration between precharge attempts, millisecond; 353 +* Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor; 354 +* Precharge resistor resistance, Ohm; 355 +* Maximum allowable power dissipated in the resistor, W; 356 +* Delay before setting the "Precharge error" when checking power, millisecond; 357 +* Delay before clearing the "Precharge error", second; 358 +* Lock the "Precharge error" – a flag to block the error until the device is restarted. 359 + 360 +“Precharge error” generation conditions if any of the following is true: 361 + 362 +* the precharge current does not decrease during the "Precharge time" after "Number of precharging attempts"; 363 +* power dissipated on the precharge resistor is above the maximum value during the “Delay before setting the 'Precharge error' when checking power” time. 364 + 365 +(% class="box warningmessage" %) 366 +((( 367 +Behavior of contactors at “Precharge error” is configured in corresponding contactor settings! 368 +))) 369 + 296 296 === Charge === 297 297 298 298 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 @@ 299 299 300 300 The device supports three charge control algorithms: 301 301 302 -* charging is always allowed; 303 -* charging is allowed when there is a signal “Charger connected”; 304 -* charging is allowed when there is a signal “Charge request”. 376 +* Always on – charging is always allowed; 377 +* On charger connected – charging is allowed when there is a signal “Charger connected”; 378 +* On charge request – charging is allowed when there is a signal “Charge request”. 305 305 306 -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: 380 +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: 307 307 308 -* Overvoltage; 309 -* Overcurrent; 310 -* High temperature (CH); 311 -* Low temperature (CH); 312 -* HYG offline (optional); 313 -* Combilift offline (optional); 314 -* Spirit offline (optional); 315 -* Spirit charger error (optional); 316 -* Short circuit (optional); 317 -* High contactor temperature (optional); 318 -* CH contactor cycles error; 319 -* Critical error 382 +* Service reset; 383 +* Power down request; 384 +* Inhibit charging, 320 320 321 321 both contactors are open (no current flows). 322 322 323 -When the algorithm "**On Charger connected**" is selected, the control is performed as follows:388 +When the algorithm "**On charger connected**" is selected, the control is performed as follows: 324 324 325 -* If there is a signal “Charger connected” and there are no errors (see the listabove), then through the delay time T,,on,, the charging contactor and the allow charging contactor close;390 +* 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; 326 326 * If the signal “Charger connected” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens; 327 327 * 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); 328 -* If errors inthelistabove occur the charging contactor and allow charging contactor open.393 +* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open. 329 329 330 -When the "**On Charge request**" algorithm selected, the control is performed as follows:395 +When the "**On charge request**" algorithm selected, the control is performed as follows: 331 331 332 -* If there is a signal “Charge request” and there are no errors (see the listabove), then through the delay time T,,on,, the charging contactor and the allow charging contactor close;397 +* 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; 333 333 * If the signal “Charge request” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens; 334 334 * 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); 335 -* If errors inthelistabove occur the charging contactor and allow charging contactor open.400 +* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open. 336 336 337 337 (% class="box infomessage" %) 338 338 ((( 339 -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).404 +**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). 340 340 ))) 341 341 342 -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. 343 - 344 344 To change the parameters of the battery charge control algorithm, select the "Control → Charge" section: 345 345 346 -[[image:1733 746766516-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="319" width="800"]]409 +[[image:1740399363134-722.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="306" width="800"]] 347 347 348 348 In this section: 349 349 ... ... @@ -352,23 +352,15 @@ 352 352 ** Always on – charging is always allowed; 353 353 ** On charger connected – charging is allowed when there is a signal “Charger connected”; 354 354 ** On charge request – charging is allowed when there is a signal “Charge request”; 355 -* Current corresponding to charging – a current level to generate the "Charging current present" signal, A; 356 -* Current corresponding to no charging – a current level to clear the "Charging current present" signal, A; 418 +* Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared; 357 357 * Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond; 358 358 * Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond; 421 +* Control the precharging contactor – a flag that allows control of the precharging contactor (see [[Precharge>>url:http://#HPrecharge]]); 359 359 * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors; 423 +* Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor; 360 360 * Custom delay: <error> – specific error delay, millisecond; 361 361 * 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”; 362 -* Control the precharging contactor – a flag that allows control of the precharging contactor; 363 -* 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; 364 -* 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; 365 -* 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. 366 366 367 -(% class="box infomessage" %) 368 -((( 369 -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. 370 -))) 371 - 372 372 === Discharge === 373 373 374 374 The device controls the discharging contactor to connect battery to the load. ... ... @@ -375,50 +375,36 @@ 375 375 376 376 The device supports three algorithms to control battery discharging: 377 377 378 -* load is always connected; 379 -* load is connected when there is no signal “Charger connected”; 380 -* load is connected when there is signal “Discharge request”. 433 +* Always on – load is always connected; 434 +* On charger disconnected – load is connected when there is no signal “Charger connected”; 435 +* On discharge request – load is connected when there is signal “Discharge request”. 381 381 382 -When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors appears: 437 +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: 383 383 384 -* Undervoltage; 385 -* Overvoltage (optional); 386 -* Overcurrent; 387 -* High temperature (DCH); 388 -* Low temperature (DCH) (optional); 389 -* HYG offline (optional); 390 -* Combilift offline (optional); 391 -* Spirit offline (optional); 392 -* Spirit charger error (optional); 393 -* Short circuit (optional); 394 -* High contactor temperature (optional); 395 -* DCH contactor cycles error; 396 -* Critical error 439 +* Service reset 440 +* Power down request 441 +* Inhibit discharging 397 397 398 398 the discharging contactor opens. 399 399 400 -If the algorithm "**On Charger disconnected**" is selected, the control is performed as follows:445 +If the algorithm "**On charger disconnected**" is selected, the control is performed as follows: 401 401 402 -* if there is no signal “Charger connected”, the charging contactor is open edand there are no errors (see thelistabove), then through the delay time T,,on,, the discharging contactor closes;403 -* If the signal “Charger connected” appears or errors occur (see the listabove), then after the delay time T,,off,, the discharging contactor opens.447 +* 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; 448 +* 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. 404 404 405 -When the "**On Discharge request**" algorithm selected, the control is performed as follows:450 +When the "**On discharge request**" algorithm selected, the control is performed as follows: 406 406 407 -* if there is signal “Discharge request”, the charging contactor is open edand there are no errors (see thelistabove), then through the delay time T,,on,, the discharging contactor closes;408 -* If the signal “Discharge request” disappears or errors occur (see the listabove), then after the delay time T,,off,, the discharging contactor opens.452 +* 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; 453 +* 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. 409 409 410 410 (% class="box infomessage" %) 411 411 ((( 412 -Note: incaseof errors in the systemoperation, theopening of the**discharging**contactorisperformedeither immediately or withadelay T,,off,, (depends on the settings described below).457 +**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). 413 413 ))) 414 414 415 -The device supports controlling the precharging contactor. The duration of switching on the precharging contactor before closing the discharging (load) contactor is adjusted. 416 - 417 -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. 418 - 419 419 To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section: 420 420 421 -[[image:173 3746885414-479.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="319" width="800"]]462 +[[image:1740399783613-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="311" width="800"]] 422 422 423 423 In this section: 424 424 ... ... @@ -427,32 +427,55 @@ 427 427 ** Always on – load is always connected; 428 428 ** On charger disconnected – load is connected when there is no signal “Charger connected”; 429 429 ** On discharge request – load is connected when there is signal “Discharge request”; 430 -* Current corresponding to discharging – a current level to generate the "Discharging current present" signal, А; 431 -* Current indicating no discharging – a current level to clear the "Discharging current present" signal, А; 471 +* Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared; 432 432 * Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond; 433 433 * Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond; 474 +* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>path:#HPrecharge]]); 475 +* Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor; 434 434 * Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors; 435 435 * Custom delay: <error> – specific error delay, millisecond; 436 436 * 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”. 437 -* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond; 438 -* 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; 439 -* 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; 440 440 441 441 === Charge/Discharge === 442 442 443 -The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery. 482 +The BMS Mini S / BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery. 444 444 445 - The charging/dischargingcontactorcombines algorithms of charging and dischargingcontactor. It behavesas a charging contactorwhen «Charge request»or«Charger connected» are set, otherwise – as a discharging contactor.484 +Charge/Discharge contactor has three algorithms of operation: 446 446 486 +* 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; 487 +* Independent (Always) - Charge/Discharge contactor is always closed if there is no errors; 488 +* 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. 489 + 490 +TBA 491 + 492 +(% class="box infomessage" %) 493 +((( 494 +**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). 495 +))) 496 + 447 447 The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section: 448 448 449 -[[image:17 33746901779-991.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="95" width="800"]]In this section:499 +[[image:1740400166950-906.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="211" width="800"]] 450 450 501 +In this section: 502 + 451 451 * Enable – a flag to enable the charge/discharge controller. 504 +* Algorithm: 505 +** 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; 506 +** Independent (Always) - Charge/Discharge contactor is always closed if there is no errors; 507 +** Independent (on Charge request or Discharge request); 508 +* Delay before starting charging or discharging, millisecond; 509 +* Delay before stopping charging or discharging, millisecond; 510 +* Control the precharging contactor – a flag that enables control of precharging contactor while closing the charge/discharge contactor; 511 +* Emulate the "Charging" and "Discharging" signals – a flag to enable generation of "Charging" and "Discharging" signals when closing charge/discharge contactor; 512 +* 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; 513 +* 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; 514 +* 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; 515 +* 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”. 452 452 453 453 === Discharge (AUX) === 454 454 455 -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. 519 +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. 456 456 457 457 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. 458 458 ... ... @@ -464,8 +464,8 @@ 464 464 465 465 To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section: 466 466 467 -[[image:1733746932199-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]] 468 468 532 +[[image:1740400254884-851.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]] 469 469 In this section: 470 470 471 471 * Enable – a flag to activate the auxiliary discharge control; ... ... @@ -472,37 +472,46 @@ 472 472 * Switch off the discharging (AUX) contactor if the SOC is too low; 473 473 * Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %; 474 474 * Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %; 539 +* Switch off the discharging (AUX) contactor if the cell voltage is out of the range; 540 +* Minimum cell voltage, V; 541 +* Maximum cell voltage, V; 475 475 * Switch off the discharging (AUX) contactor if the battery voltage is out of the range; 476 -* Minimum voltage – minimumbattery voltage, V;477 -* Maximum voltage – maximumbattery voltage, V;478 -* Switchoff the discharging(AUX)contactoronerrors –the auxiliary(AUX)discharging contactoropensif thefollowingerrorsoccur:Undervoltage,Overcurrent,Hightemperature(DCH), Short circuit, Critical error.543 +* Minimum battery voltage, V; 544 +* Maximum battery voltage, V; 545 +* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor. 479 479 480 -=== === 481 - 482 482 === Cell balancing === 483 483 484 -Balancing makes the voltage of all cells beequal to the minimum cell voltage.549 +Balancing makes the voltage of all cells equal to the minimum cell voltage. 485 485 486 486 The following balancing rules are supported: 487 487 488 -* onlywhen the battery is charging (current I > 0) andsome time until the battery is relaxed;553 +* when the battery is charging (current I > 0) and time after until the battery is relaxed; 489 489 * when the battery is charging (current I > 0) or when the battery is in a state of relaxation; 490 490 * always (regardless of battery state). 491 491 492 -A balancing resistor is connected to the cell if: 557 +A balancing resistor is connected to the cell if the following conditions are simultaneously met: 493 493 494 -* the voltage on the cell is higher than the start ingvoltageof the balancing;495 -* the difference between the cellvoltage and the minimum voltage among thecells of thebattery is greater than the balancingdeviation.559 +* the voltage on the cell is higher than the balancing start voltage; 560 +* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold; 496 496 562 +A balancing resistor is disconnected from the cell if any of the following conditions are met: 563 + 564 +* the voltage on the cell is less than the balancing stop voltage; 565 +* the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold. 566 + 497 497 (% class="box infomessage" %) 498 498 ((( 499 -If the BMS Minioverheats, then the balancing of the cells connected to thisdevice will not be performed.569 +If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed. 500 500 ))) 501 501 502 -T ochange the cell balancingparameters,select the"Control→Cell balancing"section:572 +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. 503 503 504 - [[image:1733746797003-364.png||data-xwiki-image-style-alignment="center"data-xwiki-image-style-border="true"height="104"width="800"]]574 +BMS Mini S / BMS Mini device can force a cell balancing, if its voltage is higher than estimated value. 505 505 576 +To change the cell balancing parameters, select the "Control → Cell balancing" section: 577 + 578 +[[image:1740404562825-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="168" width="800"]] 506 506 In this section: 507 507 508 508 * Enable – a flag to enable cell balancing; ... ... @@ -510,15 +510,19 @@ 510 510 ** Balance on charge; 511 511 ** Balance on charge or relaxed; 512 512 ** Balance always; 513 - 514 - [[image:1733746797004-660.png||data-xwiki-image-style-alignment="center"data-xwiki-image-style-border="true"height="104" width="800"]]515 - 586 +* Balancing condition: 587 +** Automatic – balancing will be performed automatically if needed conditions are met; 588 +** On balancing request – balancing will start only if a remote request is received. In this case cells will start to balance regardless the "Voltage deviation to start balancing" value; 516 516 * Minimum cell voltage to start balancing, V; 517 -* Balancing deviation, V. 590 +* Voltage deviation to start balancing; 591 +* Voltage deviation to stop balancing; 592 +* Voltage for forced balancing – if cell voltage is above this value, it will start discharging through balancing resistor; 593 +* Maximum allowable temperature of the board, ºC; 594 +* Command to discharge all cells – a flag to force the balancing of all cells. 518 518 519 519 === Power down === 520 520 521 -The BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time. 598 +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. 522 522 523 523 Shutting down the battery system is performed according to the following conditions: 524 524 ... ... @@ -525,32 +525,32 @@ 525 525 * the battery voltage is below the minimum level; 526 526 * the “Charger connected” signal is cleared for 60 seconds. 527 527 528 -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. 605 +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. 529 529 530 530 To change the parameters of the power down control, select the "Control → Power down" section: 531 531 532 -[[image:1733746797005-459.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="115" width="800"]] 533 - 609 +[[image:1740404859367-943.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]] 534 534 In this section: 535 535 536 536 * Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V; 537 537 * Idle time to power down – a time of battery inactivity after which the battery is shut down, minute; 538 -* Wait the "Power up/down request" is cleared (on startup) – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS. 614 +* Wait the "Power up/down request" is cleared (on startup) – a flag to enable delay for clearing the “Power up/down request” signal while starting the BMS; 615 +* Delay before setting the internal power down signal – a delay before turning off the device power when receiving the “Power down request” command, ms. 539 539 540 540 === Heater === 541 541 542 542 To change the parameters of the heater control algorithm, select the "Control → Heater" section: 543 543 544 -[[image:1733746808496-606.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]] 545 - 621 +[[image:1777293968000-235.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]] 546 546 In this section: 547 547 548 548 * Enable – a flag to enable heater control; 549 549 * Minimum cell temperature, °C; 550 550 * Tolerant cell temperature, °C; 627 +* Start the heater only if "Charger connected" signal is set; 551 551 * Delay before starting the heater, millisecond; 552 552 * Delay before stopping the heater, millisecond; 553 -* Switchoff the heateronerrors(Undervoltage,Overcurrent,Hightemperature, Shortcircuit orCriticalerror).630 +* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the heater. 554 554 555 555 As a result of operating the heating algorithm, the “Heater” signal is generated. 556 556 ... ... @@ -571,8 +571,8 @@ 571 571 572 572 To change the parameters of the cooler control algorithm, select the "Control → Cooler" section: 573 573 574 -[[image:1733746808497-424.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]] 575 575 652 +[[image:1740405145695-704.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="149" width="800"]] 576 576 In this section: 577 577 578 578 * Enable – a flag to enable cooler control; ... ... @@ -580,7 +580,7 @@ 580 580 * Tolerant cell temperature, °C; 581 581 * Delay before starting the cooler, millisecond; 582 582 * Delay before stopping the cooler, millisecond; 583 -* Switchoff thecooler contactor onerrors(Undervoltage,Overcurrent,Lowtemperature, Shortcircuit orCriticalerror).660 +* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the cooler. 584 584 585 585 As a result of operating the cooling algorithm, the "Cooler" signal is generated. 586 586 ... ... @@ -601,7 +601,7 @@ 601 601 602 602 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. 603 603 604 -The BMS Mini device can automatically determine the battery discharge characteristic. 681 +The BMS Mini S / BMS Mini device can automatically determine the battery discharge characteristic. 605 605 606 606 Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS: 607 607
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