Changes for page 3.3 Control
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... ... @@ -1,5 +1,5 @@ 1 1 (% data-numbered-headings-start="3" style="--numbered-headings-start: 2;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %) 2 -= Settings=2 += Configuration = 3 3 4 4 (% data-numbered-headings-start="3" style="--numbered-headings-start: 2;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %) 5 5 == Control == ... ... @@ -8,51 +8,39 @@ 8 8 9 9 To change the common BMS settings, select the "Control → Common settings" section: 10 10 11 -[[image:17 35054851946-552.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="105" width="800"]]11 +[[image:1777557373784-459.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="180" width="800"]] 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 cells, Ohm; 17 -* Relax time (after charging) – a relaxation time after charging, second; 18 -* Relax time (atfer discharging) – a relaxation time after discharging, second; 19 -* Reset parameters – a command to reset cells state of charge, capacity, and resistance; 20 -* Method of calculating the battery voltage: 21 -** Summation of cell voltages – the overall voltage is calculated as on sum of all cells in the battery; 22 -** Using voltage before contactors – the overall voltage is estimated as voltage before contactors measured by BMS. 15 +* **Cell capacity** – nominal capacity of cells, Ah; 16 +* **Cell resistance** – nominal (maximum) internal resistance of the cells, Ohm; 17 +* **Connection of cells:** 18 +** **Serial **– all cells are connected in series in a single string; 19 +** **Parallel-Serial **– cells are grouped in parallel and serial items; 20 +* **Parallel-Serial: Number of Logic devices in a chain**; 21 +* **Parallel-Serial: Number of parallel chains in a block**; 22 +* **Parallel-Serial: Number of serial blocks in a string**; 23 +* **Relax time (after charging)** – a relaxation time after charging, second; 24 +* **Relax time (atfer discharging)** – a relaxation time after discharging, second; 25 +* **Reset SOC** – a command to reset cells 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; 26 +* **Reset resistance** – a command to reset cells resistance to “Cell resistance” value; 27 +* **Reset capacity** – a command to reset cells capacity to “Cell capacity” value; 28 +* **Method of calculating the battery voltage***: 29 +** **Summation of cell voltages** – the overall voltage is calculated as on sum of all cells in the battery; 30 +** **Using voltage before contactors** – the overall voltage is estimated as voltage before contactors measured by BMS. 23 23 24 -The values“Capacity”,“Resistance”,“Cycles”are used to calculate theSOCofcells andthe battery.32 +The **"Parallel-Serial"** connection works as follows: a bunch of serial connected Logics are grouped into chains. A bunch of parallel connected chains are grouped to blocks. A bunch of serial connected blocks are grouped into string. By configuring the corresponding settings it is possible to create a complex string configuration. Current through each chain will be calculated as overall string current divided by number of chains in a block. 25 25 26 -The values of“Relax time” are usedto determine thestateof the battery. If thebattery isin a stateof relaxation,the system recalculatesthevoltageonthecellsto the stateof charge ofthe battery.34 +The values **“Capacity”** and **“Resistance”** are used to calculate the SOC of cells and the battery. 27 27 28 -The “Reset parameters”willreset:36 +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. 29 29 30 -* 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); 31 -* cell resistance to “Cell resistance” value; 32 -* battery capacity to “Cell capacity” value. 38 +The **“Reset SOC”, "Reset resistance" **and **"Reset capacity"** command is used for starting-up and adjustment of the battery. 33 33 34 -The “Reset parameters” command is used for starting-up and adjustment of the battery. 35 - 36 36 === SOC estimation === 37 37 38 -The BMS Main 3 device calculates the state of charge of the battery(SOC)usingtwo algorithms:42 +The BMS Main 3 / BMS Main 2R device calculates the state of charge (SOC) of each cell by using following algorithms: 39 39 40 -* by open circuit voltage; 41 -* by voltage and current. 42 - 43 -It is recommended to use the algorithm of calculation of SOC by voltage and current. 44 - 45 -To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section: 46 - 47 - 48 -[[image:1735056107942-306.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]] 49 - 50 -The following estimation algorithms supported: 51 - 52 -* Voltage – by open circuit voltage; 53 -* Current and voltage (simplified) – recommended for LFP cells; 54 -* Current and voltage (enhanced) – recommended for NMC cells. 55 - 56 56 The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C). 57 57 58 58 The **“Current and voltage (simplified)”** SOC calculation algorithm works as follows: ... ... @@ -62,32 +62,34 @@ 62 62 63 63 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). 64 64 65 -To change the algorithm for calculating the FinalSOC, select the "Control → SOC estimation→ Final SOC" section:53 +To change the algorithm for calculating the SOC, select the "Control → SOC estimation" section: 66 66 67 67 [[image:1733322611551-852.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="148" width="800"]] 68 68 69 - The followingcalculation methodsaresupported (“Final SOC”):57 +In this section: 70 70 71 -* Minimal SOC – the battery SOC is assumed to be the minimum SOC among the cells; 72 -* Average SOC – the battery SOC is taken equal to the arithmetic average of the cell SOC; 73 -* 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 have 100% SOC, b) 0% if any cell have 0% SOC; 74 -* 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; 59 +* **Algorithm:** 60 +** **Voltage **– by open circuit voltage; 61 +** **Current and voltage (simplified)** – recommended for LFP cells; 62 +** **Current and voltage (enhanced)** – recommended for NMC cells: 63 +* **Final SOC** – method of calculating overall SOC of battery: 64 +** **Minimal SOC** – the battery SOC is assumed to be the minimum SOC among the cells; 65 +** **Average SOC** – the battery SOC is taken equal to the arithmetic average of the cell SOC; 66 +** **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; 67 +** **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. 68 +* **Scale the final SOC** – a flag to scale the battery SOC by the following values; 69 +* **SOC corresponding to 0%** – the battery SOC that sets to be 0%; 70 +* **SOC corresponding to 100%** – the battery SOC that sets to be 100%. 71 +* **Uocv (open-circuit voltage) table** – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries); 72 +* **Linear zone** - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly: 73 +** **Linear zone: point 1** – starting point of the Uocv linear zone; 74 +** **Linear zone: point 2** – ending point of the Uocv linear zone; 75 +* **Coulomb counting correction (temperature)** – the dependence of battery capacity on temperature; 76 +* **Coulomb counting correction (cycles)** – the dependence of battery capacity on the number of charge-discharge cycles. 75 75 76 -Other parameters: 77 - 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. 87 - 88 88 === SOC correction === 89 89 90 -The BMS Main 3 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"]]). 80 +The BMS Main 3 / BMS Main 2R 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"]]). 91 91 92 92 To configure parameters for periodically correcting the battery state of charge, select the "Control → SOC correction" section: 93 93 ... ... @@ -95,13 +95,31 @@ 95 95 96 96 In this section: 97 97 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. 88 +* **Enable **– a flag to enable the SOC correction; 89 +* **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); 90 +* **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”. 91 +* **SOC change time** – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute; 92 +* **Ignore the linear zone** – a flag to ignore linear SOC zone while correction (recommended to be unset); 93 +* **Last correction timestamp** – time when last correction was made. 104 104 95 +=== SOH estimation === 96 + 97 +The BMS Main 3 / BMS Main 2R device calculates the state of health of the battery (SOH) using two algorithms: 98 + 99 +In **"By effective capacity" **mode SOH is calculated as a ratio of effective capacity to nominal capacity. Effective capacity is estimated to DOD value when battery SOC reaches 0%, so SOH is recalculated each full battery discharge. 100 + 101 +In** "By total charge–"** mode SOH is calculated as a linear function of "Total charge-" counter. While "Total charge-" constantly increases during battery operation, SOH will be linearly decrease at the same time. This mode requires a confirmed data about cell health depending of amount of discharge rate to configure the linear function. 102 + 103 +To configure parameters for battery state of health calculation, select the "Control → SOH correction" section: 104 + 105 +[[image:1765447975228-766.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]In this section: 106 + 107 +* **Algorithm:** 108 +** **By effective capacity;** 109 +** **By total charge–;** 110 +* **Total charge: Charge–** – total amount of charge– for expected SOH; 111 +* **Total charge: SOH** – expected SOH value at the total amount of charge–. 112 + 105 105 === Resistance estimation === 106 106 107 107 Calculation of the resistance of cells is carried out in two ways. The first method is used when the battery passes from a relaxation state to a charge or discharge state, wherein the cell resistance value ... ... @@ -134,16 +134,18 @@ 134 134 135 135 In this section: 136 136 137 -* 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. 145 +* **Current stabilization time**, millisecond; 146 +* **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; 147 +* **Maximum resistance factor** – the coefficient of calculation of the maximum acceptable resistance of the cell; 148 +* **Minimum SOC** – minimum cell SOC value for resistance calculation; 149 +* **Maximum SOC** – maximum cell SOC value for resistance calculation. 142 142 143 143 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). 144 144 145 145 === Low SOC (signal) === 146 146 155 +The "Low SOC" is indicative signal that can be assigned to a discrete output or a power switch. 156 + 147 147 To change the parameters of the generation a signal about low battery level, select the "Control → Low SOC (signal)" section: 148 148 149 149 [[image:1733322624660-513.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]] ... ... @@ -150,12 +150,12 @@ 150 150 151 151 In this section: 152 152 153 -* Enable – a flag to enable signal generation; 154 -* Minimum SOC, %; 155 -* Tolerant SOC, %; 156 -* Delay before setting the signal, second; 157 -* Delay before clearing the signal, second; 158 -* Lock – lock the signal until the device is reset. 163 +* **Enable **– a flag to enable signal generation; 164 +* **Minimum SOC**, %; 165 +* **Tolerant SOC**, %; 166 +* **Delay before setting the signal**, second; 167 +* **Delay before clearing the signal**, second; 168 +* **Lock** – lock the signal until the device is reset. 159 159 160 160 Signal generation conditions: 161 161 ... ... @@ -165,10 +165,10 @@ 165 165 166 166 * the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time. 167 167 168 -The "Low SOC signal" is indicative and can be output to a discrete output or a power switch. 169 - 170 170 === High charging current (signal) === 171 171 180 +The "High charging current" is indicative signal that can be output to a discrete output or a power switch. 181 + 172 172 To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section: 173 173 174 174 [[image:1733322624661-915.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="107" width="800"]] ... ... @@ -175,12 +175,12 @@ 175 175 176 176 In this section: 177 177 178 -* Enable – a flag to enable signal generation;179 -* Maximum charging current, А; 180 -* Tolerant charging current, А; 181 -* Delay before setting the signal, second; 182 -* Delay before clearing the signal, second; 183 -* Lock – lock the signal until the device is reset. 188 +* **Enable **– a flag to enable signal generation; 189 +* **Maximum charging current**, А; 190 +* **Tolerant charging current**, А; 191 +* **Delay before setting the signal**, second; 192 +* **Delay before clearing the signal**, second; 193 +* **Lock **– lock the signal until the device is reset. 184 184 185 185 Signal generation conditions: 186 186 ... ... @@ -190,250 +190,275 @@ 190 190 191 191 * the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time. 192 192 193 -The "High charging current" signal is indicative and can be output to a discrete output or a power switch. 194 - 195 195 === Charge map === 196 196 197 -The BMS Main 3 device calculates the maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 205 +The BMS Main 3 / BMS Main 2R device calculates the maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 198 198 199 199 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. 200 200 201 201 To configure parameters for determining the charge current limit, select the "Control → Charge map" section: 202 202 203 -[[image:173 3322637793-171.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="177" width="800"]]211 +[[image:1735064362593-844.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="800"]] 204 204 205 205 In this section: 206 206 207 -* Enable – a flag to start calculation of the charge current limit; 208 -* Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A; 209 -* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s; 210 -* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current Kcs depending on SOC and battery temperature;211 -* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature; 212 -* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current Kcc depending on contactor temperature; 213 -* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature; 214 -* 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;215 -* Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage; 216 -* 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;217 -* Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature. 215 +* **Enable **– a flag to start calculation of the charge current limit; 216 +* **Maximum charge current** – a maximum allowable value of the charge current (under normal conditions), A; 217 +* **Rate of change** – a rate of change the current limit to a new value (0 is for immediate change), A/s; 218 +* **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; 219 +* **Option 1: SOC x Temperature x Factor** – the dependence of the correction factor on SOC and battery temperature; 220 +* **Option 2: Limit charge current by the contactor temperature** – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature; 221 +* **Option 2: Contactor temperature x Factor** – the dependence of the correction factor on SOC and contactor temperature; 222 +* **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) 223 +* **Option 3: Cell voltage x Factor** – the dependence of the correction factor on maximum cell voltage; 224 +* **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; 225 +* **Option 4: Cell temperature x Factor** – the dependence of the correction factor on maximum cell temperature. 218 218 219 219 Value of the charge current limit at given SOC, temperature, contactors temperature, maximum cell voltage and maximum cell temperature is calculated as follows: 220 220 221 -Charg ingcurrent limit = Maximum chargingcurrent × Kcs × Kcc × Kcv × Kct229 +**Charge current limit = Maximum charge current × Kcs × Kcc × Kcv × Kct** 222 222 223 223 === Discharge map === 224 224 225 -The BMS Main 3 device calculates the maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 233 +The BMS Main 3 / BMS Main 2R device calculates the maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage. 226 226 227 227 Calculated current values are sent to a charger or an intellectual load over the CAN bus. 228 228 229 229 To configure parameters for determining the discharge current limit, select the "Control → Discharge map" section: 230 230 231 -[[image:173 3322637795-310.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="178" width="800"]]239 +[[image:1735064399985-526.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="152" width="800"]] 232 232 233 233 In this section: 234 234 235 -* Enable – a flag to start calculation of the discharge current limit; 236 -* Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A; 237 -* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s; 238 -* Option 1: Limit discharging current by the battery SOC and temperature – a flag to enable correction of maximum allowable discharging current Kds depending on SOC and temperature; 239 -* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature; 240 -* Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current Kdc depending on contactor temperature; 241 -* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature; 242 -* 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;243 -* Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage; 244 -* 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;245 -* Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature. 243 +* **Enable **– a flag to start calculation of the discharge current limit; 244 +* **Maximum discharge current** – a maximum allowable value of the discharge current (under normal conditions), A; 245 +* **Rate of change** – a rate of change the current limit to a new value (0 is for immediate change), A/s; 246 +* **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; 247 +* **Option 1: SOC x Temperature x Factor** – the dependence of the correction factor on SOC and battery temperature; 248 +* **Option 2: Limit discharge current by the contactor temperature** – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature; 249 +* **Option 2: Contactor temperature x Factor** – the dependence of the correction factor on SOC and contactor temperature; 250 +* **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) 251 +* **Option 3: Cell voltage x Factor** – the dependence of the correction factor on minimum cell voltage; 252 +* **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; 253 +* **Option 4: Cell voltage x Factor** – the dependence of the correction factor on minimum cell temperature. 246 246 247 247 Value of the discharge current limit at given SOC, temperature, contactors temperature, minimum cell voltage and maximum cell temperature is calculated as follows: 248 248 249 -Discharg ingcurrent limit = Maximum dischargingcurrent × Kds × Kdc × Kdv × Kdt257 +**Discharge current limit = Maximum discharge current × Kds × Kdc × Kdv × Kdt** 250 250 251 251 === Charge map (PEAK & CONTINUOUS) === 252 252 253 -The BMS Main 3 has an alternative algorithm for the maximum allowed charging current based on peak and continuous battery operating modes. 261 +The BMS Main 3 / BMS Main 2R has an alternative algorithm for the maximum allowed charging current based on peak and continuous battery operating modes. 254 254 255 255 To configure parameters for determining the charge current limit, select the "Control → Charge map (PEAK & CONTINUOUS)" section: 256 256 257 -[[image:173332 2637796-187.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="145" width="800"]]265 +[[image:1735064434321-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="124" width="800"]] 258 258 259 259 In this section: 260 260 261 -* Enable – a flag to start calculation of the charge current limit; 262 -* Maximum PEAK charge current – a maximum peak charge current (under normal conditions), A; 263 -* Maximum CONTINUOUS charge current – a maximum continuous charge current (under normal conditions), A; 264 -* PEAK: SOC x Temperature x Factor – the dependence of the correction factor for peak current K,,cp,, on SOC and battery temperature; 265 -* CONTINUOUS: SOC x Temperature x Factor – the dependence of the correction factor for continuous current K,,cc,, on SOC and battery temperature; 266 -* PEAK time – a time for peak current to be allowed, s; 267 -* Sliding time – a time of linear change of the maximum charging current from peak to continuous and from continuous to peak value, ms; 268 -* Waiting time – a time for peak current to be prohibited, s. 269 +* **Enable **– a flag to start calculation of the charge current limit; 270 +* **Maximum PEAK charge current** – a maximum peak charge current (under normal conditions), A; 271 +* **Maximum CONTINUOUS charge current** – a maximum continuous charge current (under normal conditions), A; 272 +* **PEAK: SOC x Temperature x Factor** – the dependence of the correction factor for peak current K,,cp,, on SOC and battery temperature; 273 +* **CONTINUOUS: SOC x Temperature x Factor** – the dependence of the correction factor for continuous current K,,cc,, on SOC and battery temperature; 274 +* **PEAK time** – a time for peak current to be allowed, s; 275 +* **Sliding time** – a time of linear change of the maximum charging current from peak to continuous and from continuous to peak value, ms; 276 +* **Waiting time** – a time for peak current to be prohibited, s. 269 269 270 270 The maximum charging current value equals to the peak or continuous current according to the following diagram: 271 271 272 272 [[image:1733322717451-608.png||data-xwiki-image-style-alignment="center"]] 273 273 274 -I,,peak,, = Maximum PEAK charge current × K,,cp,, 282 +**I,,peak,, = Maximum PEAK charge current × K,,cp,,** 275 275 276 -I,,continuous,, = Maximum CONTINUOUS charge current × K,,cc,, 284 +**I,,continuous,, = Maximum CONTINUOUS charge current × K,,cc,,** 277 277 278 278 === Discharge map (PEAK & CONTINUOUS) === 279 279 280 -The BMS Main 3 has an alternative algorithm for the maximum allowed discharging current based on peak and continuous battery operating modes. 288 +The BMS Main 3 / BMS Main 2R has an alternative algorithm for the maximum allowed discharging current based on peak and continuous battery operating modes. 281 281 282 282 To configure parameters for determining the discharge current limit, select the "Control → Discharge map (PEAK & CONTINUOUS)" section: 283 283 284 -[[image:173 3322735595-661.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="145" width="800"]]292 +[[image:1735064454708-345.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="124" width="800"]] 285 285 286 286 In this section: 287 287 288 -* Enable – a flag to start calculation of the discharge current limit; 289 -* Maximum PEAK discharge current – a maximum peak discharge current (under normal conditions), A; 290 -* Maximum CONTINUOUS discharge current – a maximum continuous discharge current (under normal conditions), A; 291 -* PEAK: SOC x Temperature x Factor – the dependence of the correction factor for peak current K,,dp,, on SOC and battery temperature; 292 -* CONTINUOUS: SOC x Temperature x Factor – the dependence of the correction factor for continuous current K,,dc,, on SOC and battery temperature; 293 -* PEAK time – a time for peak current to be allowed, s; 294 -* Sliding time – a time of linear change of the maximum charging current from peak to continuous and from continuous to peak value, ms; 295 -* Waiting time – a time for peak current to be prohibited, s. 296 +* **Enable **– a flag to start calculation of the discharge current limit; 297 +* **Maximum PEAK discharge current** – a maximum peak discharge current (under normal conditions), A; 298 +* **Maximum CONTINUOUS discharge current** – a maximum continuous discharge current (under normal conditions), A; 299 +* **PEAK: SOC x Temperature x Factor** – the dependence of the correction factor for peak current K,,dp,, on SOC and battery temperature; 300 +* **CONTINUOUS: SOC x Temperature x Factor** – the dependence of the correction factor for continuous current K,,dc,, on SOC and battery temperature; 301 +* **PEAK time** – a time for peak current to be allowed, s; 302 +* **Sliding time** – a time of linear change of the maximum charging current from peak to continuous and from continuous to peak value, ms; 303 +* **Waiting time** – a time for peak current to be prohibited, s. 296 296 297 297 The maximum discharging current value equals to the peak or continuous current according to following diagram: 298 298 299 299 [[image:1733322753429-968.png||data-xwiki-image-style-alignment="center"]] 300 300 301 -I,,peak,, = Maximum PEAK discharge current × K,,dp,, 309 +**I,,peak,, = Maximum PEAK discharge current × K,,dp,,** 302 302 303 -I,,continuous,, = Maximum CONTINUOUS discharge current × K,,dc,, 311 +**I,,continuous,, = Maximum CONTINUOUS discharge current × K,,dc,,** 304 304 305 305 === Main contactor === 306 306 307 -The BMS Main 3 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. 315 +The BMS Main 3 / BMS Main 2R 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. 308 308 309 309 The Main contactor algorithm supports the following modes: 310 310 311 -* Always on; 312 -* Automatic; 313 -* On demand. 319 +In **“Always on”** mode main contactor closes if all the following is true: 314 314 315 -In “Always on” mode main contactor closes if all the following is true: 321 +* Other contactors are open; 322 +* There are __no errors__ from the "Errors 1, 2 ..." bitfileds. 316 316 317 -* Charging contactor is open; 318 -* Discharging contactor is open; 319 -* There are no errors from the list below: 320 -** Overcurrent; 321 -** Undervoltage; 322 -** Overvoltage; 323 -** High temperature (CH); 324 -** High temperature (DCH); 325 -** Unallowable charging; 326 -** Critical error. 324 +and opens if all the following is true: 327 327 328 -In “Always on” mode main contactor opens if all the following is true: 326 +* Other contactors are open; 327 +* There is __an error__ from the the "Errors 1, 2 ..." bitfileds. 329 329 330 -* Charging contactor is open; 331 -* Discharging contactor is open; 332 -* There is an error from the list below: 333 -** Overcurrent; 334 -** Undervoltage; 335 -** Overvoltage; 336 -** High temperature (CH); 337 -** High temperature (DCH); 338 -** Unallowable charging; 339 -** Critical error. 329 +In **“Automatic”** mode, the main contactor closes by internal algorithms at the same time with other contactors. 340 340 341 -In “ Automatic” mode, the main contactor closes byinternalchargingand discharging algorithmsat thesame time with Precharging,Charging and Discharging contactors.331 +In **“On demand”** mode, the main contactor closes by external the “Close Main contactor” request. 342 342 343 -In “On demand” mode, the main contactor closes by external the “Close Main contactor” request. 333 +(% class="box infomessage" %) 334 +((( 335 +**Note: **when errors occur in the system, the **Main **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below). 336 +))) 344 344 345 345 To change the parameters of the main contactor, select the "Control → Main contactor" section: 346 346 347 -[[image:173 3322872744-536.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="105" width="800"]]340 +[[image:1735064488658-863.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]] 348 348 349 349 In this section: 350 350 351 -* Enable – a flag to enable the main contactor control; 352 -* Algorithm – main contactor control algorithm: 353 -** Always on – contactor is always closed; 354 -** Automatic – contactor closes by internal charge and discharge algorithms; 355 -** On demand – contactor is closed by an external request; 356 -* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed; 357 -* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, s; 358 -* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset. 344 +* **Enable **– a flag to enable the main contactor control; 345 +* **Algorithm** – main contactor control algorithm: 346 +** **Always on** – contactor is always closed; 347 +** **Automatic** – contactor closes by internal charge and discharge algorithms; 348 +** **On demand** – contactor is closed by an external request; 349 +* **Time to keep the contactor closed before closing the others** – a time for other contactors to be open after the main contactor is closed; 350 +* **Delay before opening the contactor** – a time which is used to detect conditions for opening the contactor, s; 351 +* **Keep the contactor open until the device is restarted** – a flag for keeping the main contactor open until the system is reset; 352 +* **Errors 1, 2 to open the main contactor** – bitfields to choose the errors which will open the main contactor. 359 359 360 360 === Charging status === 361 361 362 -* Current corresponding to charging – a current level to generate the "Charging current present" signal, A; 363 -* Current corresponding to no charging – a current level to clear the "Charging current present" signal, A; 364 -* 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; 365 -* 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; 366 -* 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. 356 +To change the parameters of charging process status, select the "Control → Charging status" section: 367 367 358 +[[image:1771432488941-251.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="154" width="800"]] 359 + 360 +In this section: 361 + 362 +* **Current to set the "Charging current present"** – a current level to generate the "Charging current present" signal, A; 363 +* **Current to clear the "Charging current present"** – a current level to clear the "Charging current present" signal, A; 364 +* **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; 365 +* **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; 366 +* **Use actual voltage to generate the "Ready to charge" signal** – a flag to disable voltage correction for "Ready to charge" signal; 367 +* **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; 368 +* **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; 369 +* **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; 370 +* **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; 371 +* **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; 372 +* **Errors 1, 2 to clear the "Ready to charge"** – bitfields to choose the errors which will clear the "Ready to charge" signal. 373 + 368 368 (% class="box infomessage" %) 369 369 ((( 370 -**Note:** The "Allow charging" signal activates under two independent conditions: 376 +**Note:** The **"Allow charging"** signal activates under two independent conditions: 371 371 1) the voltage on the cells reaches the “Voltage to reset the “Ready to charge"” level and 372 -2) the "Delay before recharging" time has passed since the opening of theallow chargingcontactor.378 +2) the "Delay before recharging" time has passed since the clearing of the "Allow charging" signal. 373 373 ))) 374 374 375 375 === Discharging status === 376 376 377 -* Current corresponding to discharging – a current level to generate the "Discharging current present" signal, А; 378 -* Current indicating no discharging – a current level to clear the "Discharging current present" signal, А; 379 -* 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; 380 -* 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; 383 +To change the parameters of discharging process status, select the "Control → Discharging status" section: 381 381 385 +[[image:1771431570393-551.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="155" width="800"]] 386 + 387 +In this section: 388 + 389 +* **Current to set the "Discharging current present"** – a current level to generate the "Discharging current present" signal, А; 390 +* **Current to clear the "Discharging current present"** – a current level to clear the "Discharging current present" signal, А; 391 +* **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; 392 +* **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; 393 +* **Use actual voltage to generate the "Ready to discharge" signal** – a flag to disable voltage correction for "Ready to discharge" signal; 394 +* **Treat positive currents as zero currents for generating the "Ready to discharge" signal** – a flag to disable voltage correction for "Ready to discharge" signal at charging current; 395 +* **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; 396 +* **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; 397 +* **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; 398 +* **Clear the 'Ready to discharge' signal if the 'Low SOC' signal is set**; 399 +* **Errors 1, 2 to clear the "Ready to discharge"** – bitfields to choose the errors which will clear the "Ready to discharge" signal. 400 + 382 382 === Precharge === 383 383 384 -TB A403 +The BMS Main 3 / BMS Main 2R 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. 385 385 386 - ===Charge===405 +BMS Main 3 can check the preacharge process by monitoring **the current and voltage difference** before and after contactors. 387 387 388 - Therearetwocontactorsthat servechargingthebattery:achargingcontactorand an allowchargingcontactor. With the helpof the allow chargingcontactor, theBMScommands the chargerto start or stop charging.407 +BMS Main 2R can check the preacharge process **only by monitoring the current**. 389 389 390 - The device supportsthreecharge controlalgorithms:409 +In **simple **mode precharge contactor closes a "Precharge time" before the closing of Charge or Discharge contactors and opens after the same amount of time after closing them. 391 391 392 -* Always on – charging is always allowed; 393 -* On charger connected – charging is allowed when there is a signal “Charger connected”; 394 -* On charge request – charging is allowed when there is a signal “Charge request”. 411 +In **enhanced **mode precharge contactor will wait until the current of voltage difference requirements are met and close the Charge or Discharge contactors only after that. If waiting time is greater than "Precharge time" value, an error will be generated. Precharge contactor will open after "Precharge time" after closing the Charge of Discharge contactors. 395 395 396 - If the "**Alwayson**"algorithmisselected,thechargingcontactorandtheallowchargingcontactor are alwaysclosed.Ifatleastoneoftheerrors appears:413 +Also BMS Main 3 / BMS Main 2R can measure the power dissipated on precharge resistor and generate an error if it is greater than configured limit. 397 397 398 -* Overvoltage; 399 -* Overcurrent; 400 -* High temperature (CH); 401 -* Low temperature (CH); 402 -* HYG offline (optional); 403 -* Combilift offline (optional); 404 -* Spirit offline (optional); 405 -* Spirit charger error (optional); 406 -* Short circuit (optional); 407 -* High contactor temperature (optional); 408 -* CH contactor cycles error; 409 -* Precharge error (optional); 410 -* Critical error 415 +To change the parameters of precharge contactor, select the "Control → Precharge" section: 411 411 412 - or oneofthesignals:417 +[[image:1750328428183-819.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="178" width="800"]] 413 413 419 +* **Precharge current threshold to finish precharging **– a minimum current value at which precharging process assumed to be finished, A; 420 +* **Check voltages before and after contactors to finish precharging **– a flag to check the voltages before and after contactors to ensure that precharge process has finished and it is allowed to close the discharging contactor; 421 +* **Minimum voltage difference to finish precharging** – minimal voltage difference before and after contactors at which precharge process is meant to be finished, V; 422 +* **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; 423 +* **Number of precharging attempts** – maximum number of precharging attempts before setting the "Precharge error"; 424 +* **Delay before current measurement** – a delay before first current measurement after closing precharge, millisecond; 425 +* **Precharge time **– a duration of closing the precharge contactor before closing the discharging contactor, millisecond; 426 +* **Relaxation between attempts **– a duration between precharge attempts, millisecond; 427 +* **Check the power dissipated in the preacharge resistor** - a flag to enable the calculation of power dissipated in precharge resistor; 428 +* **Precharge resistor resistance**, Ohm; 429 +* **Maximum allowable power dissipated in the resistor**, W; 430 +* **Delay before setting the "Precharge error" when checking power**, millisecond; 431 +* **Delay before clearing the "Precharge error"**, second; 432 +* **Lock the "Precharge error"** – a flag to block the error until the device is restarted. 433 + 434 +“Precharge error” generates if any of the following is true: 435 + 436 +* the precharge current does not decrease during the "Precharge time" after "Number of precharging attempts"; 437 +* voltages before and after contactors are not equal during the "Precharge time" after "Number of precharging attempts"; 438 +* power dissipated on the precharge resistor is above the maximum value during the “Delay before setting the 'Precharge error' when checking power” time. 439 + 440 +(% class="box warningmessage" %) 441 +((( 442 +Behavior of contactors at “Precharge error” is configured in corresponding contactor settings! 443 +))) 444 + 445 +=== Charge === 446 + 447 +The BMS Main 3 / BMS Main 2R device connect battery to the charger using the "Charging" signal. 448 + 449 +BMS Main 3 / BMS Main 2R supports three charge control algorithms: 450 + 451 +If the "**Always on**" algorithm is selected, the "Сharging" signal is always set. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals: 452 + 414 414 * Service reset; 415 415 * Power down request; 416 416 * Inhibit charging, 417 417 418 - bothcontactors are open(nocurrent flows).457 +the "Charging" signal is cleared. 419 419 420 420 When the algorithm "**On charger connected**" is selected, the control is performed as follows: 421 421 422 -* 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; 423 -* If the signal “Charger connected” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens; 424 -* 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); 425 -* If errors in the list above occur the charging contactor and allow charging contactor open. 461 +* 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" signal is set; 462 +* If the signal “Charger connected” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Charging" signal is cleared. 426 426 427 427 When the "**On charge request**" algorithm selected, the control is performed as follows: 428 428 429 -* 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; 430 -* If the signal “Charge request” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens; 431 -* 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); 432 -* If errors in the list above occur the charging contactor and allow charging contactor open. 466 +* 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" signal is set; 467 +* If the signal “Charge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Charging" signal is cleared; 433 433 434 434 (% class="box infomessage" %) 435 435 ((( 436 -Note: when errors occur in the system, the ** charging **contactoropenseither immediately or with the delay T,,off,, (depends on the settings described below).471 +**Note: **when errors occur in the system, the **"Charing" **signal is cleared either immediately or with the delay T,,off,, (depends on the settings described below). 437 437 ))) 438 438 439 439 To change the parameters of the battery charge control algorithm, select the "Control → Charge" section: ... ... @@ -442,73 +442,49 @@ 442 442 443 443 In this section: 444 444 445 -* Enable – a flag to activate the charge control; 446 -* Algorithm: 447 -** Always on – charging is always allowed; 448 -** On charger connected – charging is allowed when there is a signal “Charger connected”; 449 -** On charge request – charging is allowed when there is a signal “Charge request”; 450 -* Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared; 451 -* Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond; 452 -* Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond; 453 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the charge contactor; 454 -* Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor; 455 -* Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors; 456 -* Custom delay: <error> – delay for specific error, millisecond; 457 -* 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” ;480 +* **Enable **– a flag to activate the charge control; 481 +* **Algorithm**: 482 +** **Always on** – charging is always allowed; 483 +** **On charger connected** – charging is allowed when there is a signal “Charger connected”; 484 +** **On charge request** – charging is allowed when there is a signal “Charge request”; 485 +* **Allow charging only when the "Ready to charge" signal is set** – charging contactor will open if "Ready to charge" signal is cleared; 486 +* **Delay before starting charging** – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond; 487 +* **Delay before stopping charging** – a time delay T,,off,, before opening the charging contactor, millisecond; 488 +* **Control the precharging contactor** – a flag that allows control of the precharging contactor while closing the charge contactor (see [[Precharge>>path:#HPrecharge]]); 489 +* **Errors 1, 2 to open the charging contactor** – bitfields to choose the errors which will open the charging contactor; 490 +* **Use custom delays before stopping charging (on errors)** – a flag to enable manual settings of time delays T,,off,, for specific errors; 491 +* **Custom delay: <error>** – delay for specific error, millisecond; 492 +* **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”. 458 458 459 459 === Discharge === 460 460 461 -The devicecontrolsthedischargingcontactortoconnect battery to the load.496 +The BMS Main 3 / BMS Main 2R device connect battery to the load using the "Discharging" signal. 462 462 463 - Thedevicesupports three algorithms to control battery discharging:498 +BMS Main 3 / BMS Main 2R supports three algorithms to control battery discharging: 464 464 465 -* Always on – load is always connected; 466 -* On charger disconnected – load is connected when there is no signal “Charger connected”; 467 -* On discharge request – load is connected when there is signal “Discharge request”. 500 +When the algorithm "**Always on**" is selected, the "Discharging" signal is always set. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals: 468 468 469 -When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors appears: 470 - 471 -* Undervoltage; 472 -* Overvoltage (optional); 473 -* Overcurrent; 474 -* High temperature (DCH); 475 -* Low temperature (DCH) (optional); 476 -* HYG offline (optional); 477 -* Combilift offline (optional); 478 -* Spirit offline (optional); 479 -* Spirit charger error (optional); 480 -* Short circuit (optional); 481 -* High contactor temperature (optional); 482 -* Unallowable charging; 483 -* DCH contactor cycles error; 484 -* Precharge error (optional); 485 -* Critical error 486 - 487 -or one of the signals: 488 - 489 489 * Service reset 490 490 * Power down request 491 491 * Inhibit discharging 492 492 493 -the dischargingcontactoropens.506 +the "Discharging" signal is cleared. 494 494 495 495 If the algorithm "**On charger disconnected**" is selected, the control is performed as follows: 496 496 497 -* if there isnosignal“Charger connected”,thechargingcontactor isopenand there are no errors (see thelistabove), then through the delay time T,,on,, thedischargingcontactor closes;498 -* If the signal “Charger connected” appears or errors occur (see the listabove), then after the delay time T,,off,, thedischargingcontactoropens.510 +* if there are no “Charger connected” and "Charging" signals and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the "Discharging" signal is set; 511 +* If the signal “Charger connected” appears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Discharging" signal is cleared. 499 499 500 500 When the "**On discharge request**" algorithm selected, the control is performed as follows: 501 501 502 -* if there is signal “Discharge request” ,the charging contactor is open and there are no errors (see thelistabove), then through the delay time T,,on,, thedischargingcontactor closes;503 -* If the signal “Discharge request” disappears or errors occur (see the listabove), then after the delay time T,,off,, thedischargingcontactoropens.515 +* if there is signal “Discharge request” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the "Discharging" signal is set; 516 +* If the signal “Discharge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Discharging" signal is cleared. 504 504 505 505 (% class="box infomessage" %) 506 506 ((( 507 -**Note:** incaseof errors in the systemoperation,**discharging**contactoropenseither immediately or withadelay T,,off,, (depends on the settings described below).520 +**Note: **when errors occur in the system, the **"Discharge" **signal is cleared either immediately or with the delay T,,off,, (depends on the settings described below). 508 508 ))) 509 509 510 -The device supports controlling the precharging contactor. The duration of switching on the precharging contactor before closing the discharging (load) contactor is adjusted. 511 - 512 512 To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section: 513 513 514 514 [[image:1735064038329-836.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="273" width="800"]] ... ... @@ -515,35 +515,73 @@ 515 515 516 516 In this section: 517 517 518 -* Enable – a flag to activate the discharge control; 519 -* Algorithm: 520 -** Always on – load is always connected; 521 -** On charger disconnected – load is connected when there is no signal “Charger connected”; 522 -** On discharge request – load is connected when there is signal “Discharge request”; 523 -* Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared; 524 -* Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond; 525 -* Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond; 526 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor; 527 -* Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor; 528 -* Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors; 529 -* Custom delay: <error> – specific error delay, millisecond; 530 -* 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”. 529 +* **Enable **– a flag to activate the discharge control; 530 +* **Algorithm**: 531 +** **Always on** – load is always connected; 532 +** **On charger disconnected** – load is connected when there is no signal “Charger connected”; 533 +** **On discharge request** – load is connected when there is signal “Discharge request”; 534 +* **Allow charging only when the "Ready to discharge" signal is set** – discharging contactor will open if "Ready to discharge" signal is cleared; 535 +* **Delay before starting discharging** – a time delay T,,on,, before closing the discharging contactor, millisecond; 536 +* **Delay before stopping discharging** – a time delay T,,off,, before opening the discharging contactor, millisecond; 537 +* **Control the precharging contactor** – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]); 538 +* **Errors 1, 2 to open the discharging contactor** – bitfields to choose the errors which will open the discharging contactor; 539 +* **Use custom delays before stopping discharging (on errors)** – a flag to enable manual settings of time delays T,,off,, for specific errors; 540 +* **Custom delay: <error>** – specific error delay, millisecond; 541 +* **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”. 531 531 532 532 === Charge/Discharge === 533 533 534 -The BMS Main 3 device can control the c harging/discharging contactor,whichcombinesalgorithmsof charging and dischargingcontactor. Itbehaves as a chargingcontactorwhen “Chargerequest”or “Chargerconnected”isset,otherwise–as a dischargingcontactor.545 +The BMS Main 3 / BMS Main 2R device can control the contactor, used in power line both used for connecting battery to charger and load, by using the "Charging/Discharging" signal. 535 535 547 +"Charging/Discharging" signal has three algorithms of operation: 548 + 549 +On **Dependent (on Charging and Discharging signals)** algorithm the "Charging/Discharging" signal depends on Charge and Discharge controllers and equal to: 550 + 551 +* "Charging" signal if "Charging" signal is set; 552 +* "Discharging" signal in other cases. 553 + 554 +When **Independent (Always) **algorithm is selected, the "Charging/Discharging" signal is always set. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals: 555 + 556 +* Service reset 557 +* Power down request 558 +* Inhibit charging 559 +* Inhibit discharging 560 + 561 +the Charging/Discharging signal is cleared. 562 + 563 +On **Independent (on Charge request or Discharge request)** algorithm "Charging/Discharging" signal is based on its own controller and performs as follows: 564 + 565 +* if there is "Charge request" or "Discharge request" signal and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the Charging/Discharging signal is set; 566 +* If the "Charge request" and "Discharge request" disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the "Charging/Discharging" signal is cleared. 567 + 568 +(% class="box infomessage" %) 569 +((( 570 +**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). 571 +))) 572 + 536 536 The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section: 537 537 538 -[[image:173 3322827919-875.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="85" width="800"]]575 +[[image:1735122153011-166.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="162" width="800"]] 539 539 540 540 In this section: 541 541 542 -* Enable – a flag to enable the charge/discharge controller. 579 +* **Enable **– a flag to enable the charge/discharge controller. 580 +* **Algorithm**: 581 +** **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; 582 +** **Independent (Always)** - Charge/Discharge contactor is always closed if there is no errors; 583 +** **Independent (on Charge request or Discharge request)**; 584 +* **Delay before starting charging or discharging**, millisecond; 585 +* **Delay before stopping charging or discharging**, millisecond; 586 +* **Control the precharging contactor** – a flag that enables control of precharging contactor while closing the charge/discharge contactor; 587 +* **Emulate the "Charging" and "Discharging" signals** – a flag to enable generation of "Charging" and "Discharging" signals in Independet mode when closing Charge/Discharge contactor. **DO NOT** use with enabled Charge and Discharge controllers; 588 +* **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; 589 +* **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; 590 +* **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; 591 +* **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”. 543 543 544 544 === Discharge (AUX) === 545 545 546 -The BMS Main 3 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. 595 +The BMS Main 3 / BMS Main 2R 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. 547 547 548 548 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. 549 549 ... ... @@ -551,69 +551,80 @@ 551 551 552 552 * the battery has low SOC; 553 553 * the battery voltage is out of range; 554 -* the battery system errors are detected.603 +* the errors are detected (configured in the "Errors 1, 2 ..." bitfields). 555 555 556 556 To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section: 557 557 558 -[[image:173 3322827920-878.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]607 +[[image:1735066190419-838.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]] 559 559 560 560 In this section: 561 561 562 -* Enable – a flag to activate the auxiliary discharge control; 563 -* Switch off the discharging (AUX) contactor if the SOC is too low; 564 -* Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %; 565 -* Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %; 566 -* Switch off the discharging (AUX) contactor if the battery voltage is out of the range; 567 -* Minimum voltage – minimum battery voltage, V; 568 -* Maximum voltage – maximum battery voltage, V; 569 -* Switch off the discharging (AUX) contactor on errors – the auxiliary (AUX) discharging contactor opens if the following errors occur: Undervoltage, Overcurrent, High temperature (DCH), Short circuit, Critical error. 611 +* **Enable **– a flag to activate the auxiliary discharge control; 612 +* **Switch off the discharging (AUX) contactor if the SOC is too low**; 613 +* **Minimum SOC** – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %; 614 +* **Tolerant SOC** – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %; 615 +* **Switch off the discharging (AUX) contactor if the cell voltage is out of the range**; 616 +* **Minimum cell voltage**, V; 617 +* **Maximum cell voltage**, V; 618 +* **Switch off the discharging (AUX) contactor if the battery voltage is out of the range**; 619 +* **Minimum battery voltage**, V; 620 +* **Maximum battery voltage**, V; 621 +* **Errors 1, 2 to open the auxiliary discharging contactor** – bitfields to choose the errors which will open the auxiliary discharging contactor. 570 570 571 571 === Cell balancing === 572 572 573 573 Balancing makes the voltage of all cells equal to the minimum cell voltage. 574 574 575 -The following balancing rules are supported: 627 +The following **balancing rules** are supported: 576 576 577 -* when the battery is charging (current I > 0) and time after until the battery is relaxed; 578 -* when the battery is charging (current I > 0) or when the battery is in a state of relaxation; 579 -* always (regardless of battery state).629 +* **Balance on charge** – perform balancing when the battery is charging (current I > 0) and time after until the battery is relaxed; 630 +* **Balance on charge or relaxed** – perform balancing when the battery is charging (current I > 0) or when the battery is in a state of relaxation ; 631 +* **Balance always** regardless of battery state. 580 580 581 581 A balancing resistor is connected to the cell if the following conditions are simultaneously met: 582 582 583 583 * the voltage on the cell is higher than the balancing start voltage; 584 -* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold .636 +* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold; 585 585 586 586 A balancing resistor is disconnected from the cell if any of the following conditions are met: 587 587 588 -* the voltage on the cell is less than the balancing st artvoltage;640 +* the voltage on the cell is less than the balancing stop voltage; 589 589 * the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold. 590 590 643 +(% class="box infomessage" %) 644 +((( 591 591 If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed. 646 +))) 592 592 593 -The BMS Main 3 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. 648 +The BMS Main 3 / BMS Main 2R 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. 594 594 650 +BMS Main 3 / BMS Main 2R can **force balancing **of the cell, if its voltage is higher than estimated value. 651 + 595 595 To change the cell balancing parameters, select the "Control → Cell balancing" section: 596 596 597 -[[image:173 3322883460-118.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="114" width="800"]]654 +[[image:1735065702806-422.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]] 598 598 599 599 In this section: 600 600 601 -* Enable – a flag to enable cell balancing; 602 -* Balancing rule: 603 -** Balance on charge – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states); 604 -** Balance on charge or relaxed - balancing is performed while and after the charging and in the relaxed state (in “Charge ON”, “Charge OFF”, “Relaxed (after charging)” and “Relaxed (after discharging)” states); 605 -** Balance always – balancing is always performed regardless the battery state; 658 +* **Enable **– a flag to enable cell balancing; 659 +* **Balancing rule**: 660 +** **Balance on charge** – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states); 661 +** **Balance on charge or relaxed** - balancing is performed while and after the charging and in the relaxed state (in “Charge ON”, “Charge OFF”, “Relaxed (after charging)” and “Relaxed (after discharging)” states); 662 +** **Balance always** – balancing is always performed regardless the battery state; 663 +* **Balancing condition**: 664 +** **Automatic **– balancing will be performed automatically if needed conditions are met; 665 +** **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; 666 +* **Minimum cell voltage to start balancing**, V; 667 +* **Voltage deviation to start balancing**; 668 +* **Voltage deviation to stop balancing**; 669 +* **Voltage to start forced balancing** – if cell voltage is above this value, it will start discharging through balancing resistor; 670 +* **Voltage to stop forced balancing** – if cell voltage is below this value, it will stop discharging through balancing resistor; 671 +* **Maximum allowable temperature of BMS Logic devices**, ºC; 672 +* **Command to discharge all cells** – a flag to force the balancing of all cells. 606 606 607 -[[image:1733322883462-975.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="74" width="600"]] 608 - 609 -* Minimum cell voltage to start balancing, V; 610 -* Voltage deviation to start balancing; 611 -* Voltage deviation to stop balancing; 612 -* Command to discharge all cells – a flag to force the balancing of all cells. 613 - 614 614 === Series balancing === 615 615 616 -The BMS Main 3 device supports work with two independent (galvanically unrelated) cell series. To monitor the status of two series, two current sensors are used. A series of cells must be equivalent: they must have the same number of cells and the same capacity. 676 +The BMS Main 3 / BMS Main 2R device supports work with two independent (galvanically unrelated) cell series. To monitor the status of two series, two current sensors are used. A series of cells must be equivalent: they must have the same number of cells and the same capacity. 617 617 618 618 Since the series of cells can operate at different loads, they must be balanced. For this, the BMS Main 3 provides two signals to power switches: “Balancing series 1” and “Balancing series 2”, as well as a combined algorithm that considers both the voltage of each series and the charge that these series gave load. The “Balancing series 1” and “Balancing series 2” signals are used to connect high-power balancing resistors in parallel with cell series 1 and 2. 619 619 ... ... @@ -630,17 +630,17 @@ 630 630 631 631 In this section: 632 632 633 -* Enable – a flag to enable series balancing; 634 -* Number of Logics in a series; 635 -* Minimum series voltage to start balancing, V; 636 -* Balancing threshold, V; 637 -* Coulomb threshold – the difference of the charges Qthr, given by a series of cells, above which balancing to be started, Ah; 638 -* Period – a period to reset of charge counters for each series (to avoid accumulation of error), second; 639 -* Do not sum series voltages – a flag to disable the summing of series voltages. 3693 +* **Enable **– a flag to enable series balancing; 694 +* **Number of Logics in a series**; 695 +* **Minimum series voltage to start balancing**, V; 696 +* **Balancing threshold**, V; 697 +* **Coulomb threshold** – the difference of the charges Qthr, given by a series of cells, above which balancing to be started, Ah; 698 +* **Period **– a period to reset of charge counters for each series (to avoid accumulation of error), second; 699 +* **Do not sum series voltages** – a flag to disable the summing of series voltages. 640 640 641 641 === Power down === 642 642 643 -The BMS Main 3 device can shut down itself if the battery voltage is low or the battery is idle for a long time. 703 +The BMS Main 3 / BMS Main 2R device can shut down itself if the battery voltage is low or the battery is idle for a long time. 644 644 645 645 Shutting down the battery system is performed according to the following conditions: 646 646 ... ... @@ -647,7 +647,7 @@ 647 647 * the battery voltage is below the minimum level; 648 648 * the “Charger connected” signal is cleared for 60 seconds. 649 649 650 -The BMS Main 3 device also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” forthe configuredtime.710 +The BMS Main 3 / BMS Main 2R device also shuts down the battery if it **stays for a long time **in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” state. 651 651 652 652 To change the parameters of the power down control, select the "Control → Power down" section: 653 653 ... ... @@ -655,11 +655,11 @@ 655 655 656 656 In this section: 657 657 658 -* Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V; 659 -* Idle time to power down – a time of battery inactivity after which the battery is shut down, minute; 660 -* 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. 661 -* Power down if KEYRUN and CHARGE_ON are cleared – a flag to power down the device if KEYRUN and CHARGE_ON signals are cleared; 662 -* Delay before setting the internal power down signal – a delay before turning off the device power when removing KEYRUN and CHARGE_ON or receiving the “Power down request” command, ms. 718 +* **Minimum voltage to power down** – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V; 719 +* **Idle time to power down** – a time of battery inactivity after which the battery is shut down, minute; 720 +* **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. 721 +* **Power down if KEYRUN and CHARGE_ON are cleared** – a flag to power down the device if KEYRUN and CHARGE_ON signals are cleared; 722 +* **Delay before setting the internal power down signal** – a delay before turning off the device power when removing KEYRUN and CHARGE_ON or receiving the “Power down request” command, ms. 663 663 664 664 === Heater === 665 665 ... ... @@ -669,24 +669,29 @@ 669 669 670 670 In this section: 671 671 672 -* Enable – a flag to enable the heater control; 673 -* Minimum cell temperature, °C; 674 -* Tolerant cell temperature, °C; 675 -* Delay before starting the heater, millisecond; 676 -* Delay before stopping the heater, millisecond; 677 -* Switchoffthe heateronerrors(Undervoltage,Overcurrent,Hightemperature, ShortcircuitorCriticalerror).732 +* **Enable **– a flag to enable the heater control; 733 +* **Minimum cell temperature**, °C; 734 +* **Tolerant cell temperature**, °C; 735 +* **Delay before starting the heater**, millisecond; 736 +* **Delay before stopping the heater**, millisecond; 737 +* **Errors 1, 2 to open the heater** – bitfields to choose the errors which will open the heater. 678 678 679 679 As a result of operating the heating algorithm, the “Heater” signal is generated. 680 680 681 681 Conditions for signal generation: 682 682 683 -* the minimum temperature among all cells of the battery is less than the “Minimum cell temperature” value during the “Delay before starting the heater” time. 743 +* the minimum temperature among all cells of the battery is less than the “Minimum cell temperature” value during the “Delay before starting the heater” time; 744 +* there are no errors from "Errors 1, 2..." bitfields. 684 684 685 685 Conditions for clearing the signal: 686 686 687 -* the minimum temperature among all cells of the battery is greater than the “Tolerant cell temperature” value during the “Delay before stopping the heater” time. 748 +* the minimum temperature among all cells of the battery is greater than the “Tolerant cell temperature” value during the “Delay before stopping the heater” time; 749 +* there is an error from "Errors 1, 2..." bitfields. 688 688 689 -If there is the "Heater" signal, the heater contactor closes and/or a signal is output to the corresponding digital output. 751 +(% class="box infomessage" %) 752 +((( 753 +If there is the "Heater" signal, the heater contactor closes and/or a signal is set to the corresponding digital output. 754 +))) 690 690 691 691 === Cooler === 692 692 ... ... @@ -696,27 +696,37 @@ 696 696 697 697 In this section: 698 698 699 -* Enable – a flag to enable the cooler control; 700 -* Maximum cell temperature, °C; 701 -* Tolerant cell temperature, °C; 702 -* Delay before starting the cooler, millisecond; 703 -* Delay before stopping the cooler, millisecond; 704 -* Switchoffthe coolercontactoron errors(Undervoltage,Overcurrent, Low temperature,Short circuitorCriticalerror).764 +* **Enable** – a flag to enable the cooler control; 765 +* **Maximum cell temperature**, °C; 766 +* **Tolerant cell temperature**, °C; 767 +* **Delay before starting the cooler**, millisecond; 768 +* **Delay before stopping the cooler**, millisecond; 769 +* **Errors 1, 2 to open the cooler **– bitfields to choose the errors which will open the cooler. 705 705 706 706 As a result of operating the cooling algorithm, the "Cooler" signal is generated. 707 707 708 708 Conditions for signal generation: 709 709 710 -* the maximum temperature among all cells of the battery is greater than the “Maximum cell temperature” value during the “Delay before starting the cooler” time. 775 +* the maximum temperature among all cells of the battery is greater than the “Maximum cell temperature” value during the “Delay before starting the cooler” time; 776 +* there are no errors from "Errors 1, 2..." bitfields. 711 711 712 712 Conditions for clearing the signal: 713 713 714 -* the maximum temperature among all cells of the battery is less than the “Tolerant cell temperature” value during the “Delay before stopping the cooler” time. 780 +* the maximum temperature among all cells of the battery is less than the “Tolerant cell temperature” value during the “Delay before stopping the cooler” time; 781 +* there is an error from "Errors 1, 2..." bitfields. 715 715 716 -If there is the "Cooler" signal, the cooler contactor closes and/or a signal is output to the corresponding digital output. 783 +(% class="box infomessage" %) 784 +((( 785 +If there is the "Cooler" signal, the cooler contactor closes and/or a signal is set to the corresponding digital output. 786 +))) 717 717 718 718 === High voltage === 719 719 790 +(% class="box warningmessage" %) 791 +((( 792 +This section is not available on BMS Main 2R. 793 +))) 794 + 720 720 The BMS Main 3 device has an ability to measure high voltages before and after contactors. 721 721 722 722 To change the parameters of high voltage fault, select the "Control → High voltage" section: ... ... @@ -725,19 +725,22 @@ 725 725 726 726 In this section: 727 727 728 -* Enable – a flag to enable High voltage control; 729 -* Delay before clearing the High voltage fault, second; 730 -* Lock the High voltage fault. 803 +* **Enable **– a flag to enable High voltage control; 804 +* **Delay before clearing the High voltage fault**, second; 805 +* **Lock the High voltage fault**. 731 731 732 732 The BMS Main 3 implements a self-diagnostics of high-voltage measurement lines. If measurement line breaks or high-voltage polarity is wrong, “High voltage fault” is generated. 733 733 734 -**If there is the “High voltage fault”, the “Critical error” is generated and all contactors open.** 809 +(% class="box warningmessage" %) 810 +((( 811 +If there is the “High voltage fault”, **the “Critical error” is generated.** 812 +))) 735 735 736 736 === Cell analysis === 737 737 738 738 The battery discharge characteristic – the dependence Uocv = Uocv(DOD) – is used to determine the tabular dependence Uocv = Uocv(SOC, t°C), which is necessary for calculating the battery charge level. 739 739 740 -The BMS Main 3 device can automatically determine the battery discharge characteristic. 818 +The BMS Main 3 / BMS Main 2R device can automatically determine the battery discharge characteristic. 741 741 742 742 Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS: 743 743 ... ... @@ -750,18 +750,14 @@ 750 750 751 751 In this section: 752 752 753 -* Enable – a flag to enable cell analysis; 754 -* Discharge step, Ah; 755 -* Delta voltage – a maximum allowable voltage drop for the cell, V; 756 -* Logic index, Cell index – a position of the analyzed cell; 757 -* Analyse the most discharged cell – a flag to analyse of the least charged cell (in this case, the values “Logic index” and “Cell index” are ignored). 831 +* **Enable **– a flag to enable cell analysis; 832 +* **Discharge step**, Ah; 833 +* **Delta voltage** – a maximum allowable voltage drop for the cell, V; 834 +* **Logic index, Cell index** – a position of the analyzed cell; 835 +* **Analyse the most discharged cell** – a flag to analyse of the least charged cell (in this case, the values “Logic index” and “Cell index” are ignored). 758 758 759 -Discharge step should be set equal to 837 +Discharge step should be set equal to С/21, where C is the cell capacity. 760 760 761 -Discharge step= С/21, 762 - 763 -where C is the cell capacity. 764 - 765 765 The discharge characteristic will be constructed for the given cell (its position is determined by the fields “Logic index” and “Cell index”). 766 766 767 767 The algorithm for determining the discharge characteristic of the battery will be started if the “Enable” flag is set. From this moment, the control of the discharge contactor is performed by this algorithm.
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