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Changes for page 3.3 Control

Last modified by Admin on 2026/04/30 15:58
From version 11.1
edited by Admin
on 2025/02/24 11:31
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To version 59.1
edited by Admin
on 2026/04/30 15:58
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Summary

Details

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Content
... ... @@ -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 (atfer 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) using two 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 is recommended to use the algorithm of calculation of SOC by voltage and current.
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 following battery Final SOC calculation methods 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  
... ... @@ -161,333 +161,441 @@
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 -)))
170 +=== High charging current (signal) ===
168 168  
169 -=== Charge map ===
172 +The "High charging current" is indicative signal that can be output to a discrete output or a power switch.
170 170  
171 -The BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
174 +To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section:
172 172  
173 -Calculated current values are sending to a charger or an intellectual load over the CAN bus.
176 +[[image:1740396996935-403.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]]
174 174  
175 -To configure parameters for determining the charge current limit, select the "Control → Charge map" section:
178 +In this section:
176 176  
177 -[[image:1733746766504-864.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
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.
178 178  
179 -In this section:
187 +Signal generation conditions:
180 180  
181 -* Enable – a flag to start calculation of the charge current limit;
182 -* Maximum charge current – a maximum allowable value of the charge current (under normal conditions):
183 -* 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;
184 -* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
189 +* the measured current is greater than the “Maximum charging current” value during the “Delay before setting the signal” time.
185 185  
186 -[[image:1733746766506-660.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="196" width="800"]]
191 +Conditions for clearing the signal:
187 187  
188 -* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current Kcc depending on contactor temperature;
189 -* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
193 +* the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time.
190 190  
191 -[[image:1733746766508-178.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="184" width="800"]]
195 +=== Charge map ===
192 192  
193 -* 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;
194 -* Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum 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.
195 195  
196 -[[image:1733746766509-971.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="217" width="800"]]
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.
197 197  
198 -Value of the charge current limit at given SOC, temperature, contactors temperature and maximum cell voltage is calculated as follows:
201 +To configure parameters for determining the charge current limit, select the "Control → Charge map" section:
199 199  
200 -Charging current limit = Maximum charging current × Kcs × Kcc × Kcv
203 +[[image:1740397188247-315.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
204 +In this section:
201 201  
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.
217 +
218 +Value of the charge current limit at given SOC, temperature, contactors temperature, maximum cell voltage and maximum cell temperature is calculated as follows:
219 +
220 +**Charge current limit = Maximum charge current × Kcs × Kcc × Kcv × Kct**
221 +
202 202  === Discharge map ===
203 203  
204 -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.
205 205  
206 206  Calculated current values are sending to a charger or an intellectual load over the CAN bus.
207 207  
208 208  To configure parameters for determining the discharge current limit, select the "Control → Discharge map" section:
209 209  
210 -[[image:1733746766511-477.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="149" width="800"]]
230 +[[image:1740397304972-174.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="182" width="800"]]
211 211  
212 212  In this section:
213 213  
214 -* Enable – a flag to start calculation of the discharge current limit;
215 -* Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions):
216 -* 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;
217 -* Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery 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.
218 218  
219 -[[image:1733746766512-300.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="195" width="800"]]
246 +Value of the discharge current limit at given SOC, temperature, contactors temperature, minimum cell voltage and maximum cell temperature is calculated as follows:
220 220  
221 -* Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current Kdc depending on contactor temperature;
222 -* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
248 +**Discharge current limit = Maximum discharge current × Kds × Kdc × Kdv × Kdt**
223 223  
224 -[[image:1733746766513-161.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="183" width="800"]]
250 +=== Main contactor ===
225 225  
226 -* 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;
227 -* Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage.
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.
228 228  
229 -[[image:1733746766514-686.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="215" width="800"]]
254 +The Main contactor algorithm supports the following modes:
230 230  
231 -Value of the discharge current limit at given SOC, temperature, contactors temperature and minimum cell voltage is calculated as follows:
256 +In **“Always on”** mode main contactor closes if all the following is true:
232 232  
233 -Discharging current limit = Maximum discharging current × Kds × Kdc × Kdv
258 +* Other contactors are open;
259 +* There are __no errors__ from the "Errors 1, 2 ..." bitfileds.
234 234  
235 -=== Charge ===
261 +and opens if all the following is true:
236 236  
237 -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.
263 +* Other contactors are open;
264 +* There is __an error__ from the the "Errors 1, 2 ..." bitfileds.
238 238  
239 -The device supports three charge control algorithms:
266 +In **“Automatic”** mode, the main contactor closes by internal algorithms at the same time with other contactors.
240 240  
241 -* charging is always allowed;
242 -* charging is allowed when there is a signal “Charger connected”;
243 -* charging is allowed when there is a signal “Charge request”.
268 +In **“On demand”** mode, the main contactor closes by external the “Close Main contactor” request.
244 244  
245 -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:
270 +(% class="box infomessage" %)
271 +(((
272 +**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).
273 +)))
246 246  
247 -* Overvoltage;
248 -* Overcurrent;
249 -* High temperature (CH);
250 -* Low temperature (CH);
251 -* HYG offline (optional);
252 -* Combilift offline (optional);
253 -* Spirit offline (optional);
254 -* Spirit charger error (optional);
255 -* Short circuit (optional);
256 -* High contactor temperature (optional);
257 -* CH contactor cycles error;
258 -* Critical error
275 +To change the parameters of the main contactor, select the "Control → Main contactor" section:
259 259  
260 -both contactors are open (no current flows).
277 +[[image:1777563933065-421.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]]
261 261  
262 -When the algorithm "**On Charger connected**" is selected, the control is performed as follows:
279 +In this section:
263 263  
264 -* 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;
265 -* If the signal “Charger connected” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens;
266 -* 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);
267 -* If errors in the list above occur the charging contactor and allow charging contactor open.
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.
268 268  
269 -When the "**On Charge request**" algorithm selected, the control is performed as follows:
291 +=== Charging status ===
270 270  
271 -* 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;
272 -* If the signal “Charge request” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens;
273 -* 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);
274 -* If errors in the list above occur the charging contactor and allow charging contactor open.
293 +To change the parameters of charging process status, select the "Control → Charging status" section:
275 275  
295 +[[image:1777564109089-225.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="156" width="800"]]
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 +* **Use actual voltage to generate the "Ready to charge" signal** – a flag to disable voltage correction for "Ready to charge" signal;
301 +* **Use actual voltage to generate the "Ready to charge" signal if the current is negative **– a flag to disable voltage correction for "Ready to charge" signal only at discharging current;
302 +* **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;
303 +* **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;
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 +
276 276  (% class="box infomessage" %)
277 277  (((
278 -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).
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.
279 279  )))
280 280  
281 -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.
317 +=== Discharging status ===
282 282  
283 -To change the parameters of the battery charge control algorithm, select the "Control → Charge" section:
319 +To change the parameters of discharging process status, select the "Control → Discharging status" section:
284 284  
285 -[[image:1733746766516-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="319" width="800"]]
321 +[[image:1762774840204-111.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="800"]]In this section:
286 286  
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 Mini S / BMS Mini 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 Mini S / BMS Mini can check the preacharge process **only by monitoring the current**.
340 +
341 +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.
342 +
343 +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.
344 +
345 +Also BMS Mini S / BMS Mini can measure the power dissipated on precharge resistor and generate an error if it is greater than configured limit.
346 +
347 +To change the parameters of precharge contactor, select the "Control → Precharge" section:
348 +
349 +[[image:1754931813173-804.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="172" width="800"]]
350 +
287 287  In this section:
288 288  
289 -* Enable – a flag to activate the charge control;
290 -* Algorithm:
291 -** Always on – charging is always allowed;
292 -** On charger connected – charging is allowed when there is a signal “Charger connected”;
293 -** On charge request – charging is allowed when there is a signal “Charge request”;
294 -* Current corresponding to charging – a current level to generate the "Charging current present" signal, A;
295 -* Current corresponding to no charging – a current level to clear the "Charging current present" signal, A;
296 -* Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
297 -* Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
298 -* Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
299 -* Custom delay: <error> – specific error delay, millisecond;
300 -* 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”;
301 -* Control the precharging contactor – a flag that allows control of the precharging contactor;
302 -* 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;
303 -* 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;
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.
353 +* **Precharge current threshold to finish precharging** – a minimum current value at which precharging process assumed to be finished, A;
354 +* **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;
355 +* **Number of precharging attempts** – maximum number of precharging attempts before setting the "Precharge error";
356 +* **Delay before current measurement** – a delay before first current measurement after closing precharge, millisecond;
357 +* **Precharge time **– a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
358 +* **Relaxation between attempts **– a duration between precharge attempts, millisecond;
359 +* **Check the power dissipated in the preacharge resistor** - a flag to enable the calculation of power dissipated in precharge resistor;
360 +* **Precharge resistor resistance**, Ohm;
361 +* **Maximum allowable power dissipated in the resistor**, W;
362 +* **Delay before setting the "Precharge error" when checking power**, millisecond;
363 +* **Delay before clearing the "Precharge error"**, second;
364 +* **Lock the "Precharge error"** – a flag to block the error until the device is restarted.
305 305  
306 -(% class="box infomessage" %)
366 +“Precharge error” generation conditions if any of the following is true:
367 +
368 +* the precharge current does not decrease during the "Precharge time" after "Number of precharging attempts";
369 +* power dissipated on the precharge resistor is above the maximum value during the “Delay before setting the 'Precharge error' when checking power” time.
370 +
371 +(% class="box warningmessage" %)
307 307  (((
308 -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.
373 +Behavior of contactors at “Precharge error” is configured in corresponding contactor settings!
309 309  )))
310 310  
311 -=== Discharge ===
376 +=== Charge ===
312 312  
313 -The device controls the discharging contactor to connect battery to the load.
378 +The BMS Mini S / BMS Mini device connect battery to the charger using the "Charging" signal.
314 314  
315 -The device supports three algorithms to control battery discharging:
380 +BMS Mini S / BMS Mini supports three charge control algorithms:
316 316  
317 -* load is always connected;
318 -* load is connected when there is no signal “Charger connected”;
319 -* load is connected when there is signal “Discharge request”.
382 +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:
320 320  
321 -When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors appears:
384 +* Service reset;
385 +* Power down request;
386 +* Inhibit charging,
322 322  
323 -* Undervoltage;
324 -* Overvoltage (optional);
325 -* Overcurrent;
326 -* High temperature (DCH);
327 -* Low temperature (DCH) (optional);
328 -* HYG offline (optional);
329 -* Combilift offline (optional);
330 -* Spirit offline (optional);
331 -* Spirit charger error (optional);
332 -* Short circuit (optional);
333 -* High contactor temperature (optional);
334 -* DCH contactor cycles error;
335 -* Critical error
388 +the "Charging" signal is cleared.
336 336  
337 -the discharging contactor opens.
390 +When the algorithm "**On charger connected**" is selected, the control is performed as follows:
338 338  
339 -If the algorithm "**On Charger disconnected**" is selected, the control is performed as follows:
392 +* 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;
393 +* 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.
340 340  
341 -* if there is no signal “Charger connected”, the charging contactor is opened and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
342 -* If the signal “Charger connected” appears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
395 +When the "**On charge request**" algorithm selected, the control is performed as follows:
343 343  
344 -When the "**On Discharge request**" algorithm selected, the control is performed as follows:
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" signal is set;
398 +* 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;
345 345  
346 -* if there is signal “Discharge request”, the charging contactor is opened and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
347 -* If the signal “Discharge request” disappears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
400 +**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).
348 348  
402 +To change the parameters of the battery charge control algorithm, select the "Control → Charge" section:
403 +
404 +[[image:1740399363134-722.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="306" width="800"]]
405 +
406 +In this section:
407 +
408 +* **Enable **– a flag to activate the charge control;
409 +* **Algorithm**:
410 +** **Always on** – charging is always allowed;
411 +** **On charger connected** – charging is allowed when there is a signal “Charger connected”;
412 +** **On charge request** – charging is allowed when there is a signal “Charge request”;
413 +* **Allow charging only when the "Ready to charge" signal is set** – charging contactor will open if "Ready to charge" signal is cleared;
414 +* **Delay before starting charging** – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
415 +* **Delay before stopping charging** – a time delay T,,off,, before opening the charging contactor, millisecond;
416 +* **Control the precharging contactor** – a flag that allows control of the precharging contactor while closing the charge contactor (see [[Precharge>>url:https://docs.movicomelectric.com/bin/view/Battery%20management%20systems/BMS%20Main%203/3.%20Configuration/3.3%20Control/?language=en#HPrecharge]]);
417 +* **Errors 1, 2 to open the charging contactor** – bitfields to choose the errors which will open the charging contactor;
418 +* **Use custom delays before stopping charging (on errors)** – a flag to enable manual settings of time delays T,,off,, for specific errors;
419 +* **Custom delay: <error>** – delay for specific error, millisecond;
420 +* **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”.
421 +
422 +=== Discharge ===
423 +
424 +The BMS Mini S / BMS Mini device connect battery to the load using the "Discharging" signal.
425 +
426 +BMS Mini S / BMS Mini device supports three algorithms to control battery discharging:
427 +
428 +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:
429 +
430 +* Service reset
431 +* Power down request
432 +* Inhibit discharging
433 +
434 +the "Discharging" signal is cleared.
435 +
436 +If the algorithm "**On charger disconnected**" is selected, the control is performed as follows:
437 +
438 +* 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;
439 +* 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.
440 +
441 +When the "**On discharge request**" algorithm selected, the control is performed as follows:
442 +
443 +* 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;
444 +* 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.
445 +
349 349  (% class="box infomessage" %)
350 350  (((
351 -Note: in case of errors in the system operation, the opening of the **discharging **contactor is performed either immediately or with a delay T,,off,, (depends on the settings described below).
448 +**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).
352 352  )))
353 353  
354 -The device supports controlling the precharging contactor. The duration of switching on the precharging contactor before closing the discharging (load) contactor is adjusted.
355 -
356 -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.
357 -
358 358  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
359 359  
360 -[[image:1733746885414-479.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="319" width="800"]]
453 +[[image:1740399783613-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="311" width="800"]]
361 361  
362 362  In this section:
363 363  
364 -* Enable – a flag to activate the discharge control;
365 -* Algorithm:
366 -** Always on – load is always connected;
367 -** On charger disconnected – load is connected when there is no signal “Charger connected”;
368 -** On discharge request – load is connected when there is signal “Discharge request”;
369 -* Current corresponding to discharging – a current level to generate the "Discharging current present" signal, А;
370 -* Current indicating no discharging – a current level to clear the "Discharging current present" signal, А;
371 -* Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond;
372 -* Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond;
373 -* Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
374 -* Custom delay: <error> – specific error delay, millisecond;
375 -* 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”.
376 -* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
377 -* 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;
378 -* 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;
457 +* **Enable **– a flag to activate the discharge control;
458 +* **Algorithm**:
459 +** **Always on** – load is always connected;
460 +** **On charger disconnected** – load is connected when there is no signal “Charger connected”;
461 +** **On discharge request** – load is connected when there is signal “Discharge request”;
462 +* **Allow charging only when the "Ready to discharge" signal is set** – discharging contactor will open if "Ready to discharge" signal is cleared;
463 +* **Delay before starting discharging** – a time delay T,,on,, before closing the discharging contactor, millisecond;
464 +* **Delay before stopping discharging** – a time delay T,,off,, before opening the discharging contactor, millisecond;
465 +* **Control the precharging contactor** – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>url:https://docs.movicomelectric.com/bin/view/Battery%20management%20systems/BMS%20Main%203/3.%20Configuration/3.3%20Control/?language=en#HPrecharge]]);
466 +* **Errors 1, 2 to open the discharging contactor** – bitfields to choose the errors which will open the discharging contactor;
467 +* **Use custom delays before stopping discharging (on errors)** – a flag to enable manual settings of time delays T,,off,, for specific errors;
468 +* **Custom delay: <error>** – specific error delay, millisecond;
469 +* **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”.
379 379  
380 380  === Charge/Discharge ===
381 381  
382 -The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
473 +The BMS Mini S / BMS Mini device can control the contactor, used in power line both used for connecting battery to charger and load, by using the "Charging/Discharging" signal.
383 383  
384 -The charging/discharging contactor combines algorithms of charging and discharging contactor. It behaves as a charging contactor when «Charge request» or «Charger connected» are set, otherwise – as a discharging contactor.
475 +"Charging/Discharging" signal has three algorithms of operation:
385 385  
386 -The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section:
477 +On **Dependent (on Charging and Discharging signals)** algorithm the "Charging/Discharging" signal depends on Charge and Discharge controllers and equal to:
387 387  
388 -[[image:1733746901779-991.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="95" width="800"]]In this section:
479 +* "Charging" signal if "Charging" signal is set;
480 +* "Discharging" signal in other cases.
389 389  
390 -* Enable – a flag to enable the charge/discharge controller.
482 +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:
391 391  
392 -=== Discharge (AUX) ===
484 +* Service reset
485 +* Power down request
486 +* Inhibit charging
487 +* Inhibit discharging
393 393  
394 -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.
489 +the Charging/Discharging signal is cleared.
395 395  
396 -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.
491 +On **Independent (on Charge request or Discharge request)** algorithm "Charging/Discharging" signal is based on its own controller and performs as follows:
397 397  
398 -If the power supply function of the external equipment is enabled, the auxiliary (AUX) discharging contactor closes. The opening of this contactor occurs on three independent conditions:
493 +* 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;
494 +* 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.
399 399  
400 -* the battery has low SOC;
401 -* the battery voltage is out of range;
402 -* the battery system errors are detected.
496 +(% class="box infomessage" %)
497 +(((
498 +**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).
499 +)))
403 403  
404 -To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
501 +The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section:
405 405  
406 -[[image:1733746932199-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]]
503 +[[image:1740400166950-906.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="211" width="800"]]
407 407  
408 408  In this section:
409 409  
410 -* Enable – a flag to activate the auxiliary discharge control;
411 -* Switch off the discharging (AUX) contactor if the SOC is too low;
412 -* Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %;
413 -* Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %;
414 -* Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
415 -* Minimum voltage – minimum battery voltage, V;
416 -* Maximum voltage – maximum battery voltage, V;
417 -* 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.
507 +* **Enable **– a flag to enable the charge/discharge controller.
508 +* **Algorithm**:
509 +** **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;
510 +** **Independent (Always)** - Charge/Discharge contactor is always closed if there is no errors;
511 +** **Independent (on Charge request or Discharge request)**;
512 +* **Delay before starting charging or discharging**, millisecond;
513 +* **Delay before stopping charging or discharging**, millisecond;
514 +* **Control the precharging contactor** – a flag that enables control of precharging contactor while closing the charge/discharge contactor;
515 +* **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;
516 +* **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;
517 +* **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;
518 +* **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;
519 +* **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”.
418 418  
419 -=== Main contactor ===
521 +=== Discharge (AUX) ===
420 420  
421 -The BMS Mini device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in a case of sealing of the charging or discharging contactors.
523 +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.
422 422  
423 -The main contactor closes if there are no errors from the list below:
525 +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.
424 424  
425 -* Overcurrent;
426 -* Undervoltage;
427 -* Overvoltage;
428 -* High temperature (CH);
429 -* High temperature (DCH);
430 -* Unallowable charging;
431 -* Critical error.
527 +If the power supply function of the external equipment is enabled, the auxiliary (AUX) discharging contactor closes. The opening of this contactor occurs on three independent conditions:
432 432  
433 -The main contactor opens if the charging and discharging contactors are opened and any of the following conditions is met:
529 +* the battery has low SOC;
530 +* the battery voltage is out of range;
531 +* the battery system errors are detected.
434 434  
435 -* charging or discharging current is detected during a set time;
436 -* voltage of any cell is lower than the minimum cell voltage configured in the section "Protections → Undervoltage" during a set time;
437 -* voltage of any cell is greater than the maximum cell voltage configured in the section "Protections → Overvoltage" during a set time;
438 -* temperature of any cell is greater than the maximum cell temperature configured in the section "Protections → High temperature" during a set time;
439 -* Critical error stays on during a set time.
533 +To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
440 440  
441 -To change the parameters of the main contactor, select the "Control → Main contactor" section:
535 +[[image:1740400254884-851.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
442 442  
443 -[[image:1733746797002-498.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="93" width="800"]]
444 -
445 445  In this section:
446 446  
447 -* Enable – a flag to enable the main contactor control;
448 -* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, second;
449 -* Keep the contactor open until the device is restarted – a flag for keeping the main contactor opened until the system be reset.
539 +* **Enable **– a flag to activate the auxiliary discharge control;
540 +* **Switch off the discharging (AUX) contactor if the SOC is too low**;
541 +* **Minimum SOC** – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %;
542 +* **Tolerant SOC** – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %;
543 +* **Switch off the discharging (AUX) contactor if the cell voltage is out of the range**;
544 +* **Minimum cell voltage**, V;
545 +* **Maximum cell voltage**, V;
546 +* **Switch off the discharging (AUX) contactor if the battery voltage is out of the range**;
547 +* **Minimum battery voltage**, V;
548 +* **Maximum battery voltage**, V;
549 +* **Errors 1, 2 to open the auxiliary discharging contactor** – bitfields to choose the errors which will open the auxiliary discharging contactor.
450 450  
451 451  === Cell balancing ===
452 452  
453 -Balancing makes the voltage of all cells be equal to the minimum cell voltage.
553 +Balancing makes the voltage of all cells equal to the minimum cell voltage.
454 454  
455 -The following balancing rules are supported:
555 +The following **balancing rules** are supported:
456 456  
457 -* only when the battery is charging (current I > 0) and some time until the battery is relaxed;
458 -* when the battery is charging (current I > 0) or when the battery is in a state of relaxation;
459 -* always (regardless of battery state).
557 +* **Balance on charge** – perform balancing when the battery is charging (current I > 0) and time after until the battery is relaxed;
558 +* **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 ​​​​​;
559 +* **Balance always** regardless of battery state.
460 460  
461 -A balancing resistor is connected to the cell if:
561 +A balancing resistor is connected to the cell if the following conditions are simultaneously met:
462 462  
463 -* the voltage on the cell is higher than the starting voltage of the balancing;
464 -* the difference between the cell voltage and the minimum voltage among the cells of the battery is greater than the balancing deviation.
563 +* the voltage on the cell is higher than the balancing start voltage;
564 +* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold;
465 465  
566 +A balancing resistor is disconnected from the cell if any of the following conditions are met:
567 +
568 +* the voltage on the cell is less than the balancing stop voltage;
569 +* the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
570 +
466 466  (% class="box infomessage" %)
467 467  (((
468 -If the BMS Mini overheats, then the balancing of the cells connected to this device will not be performed.
573 +If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
469 469  )))
470 470  
576 +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.
577 +
578 +BMS Mini S / BMS Mini device can **force balancing** of the cell, if its voltage is higher than estimated value.
579 +
471 471  To change the cell balancing parameters, select the "Control → Cell balancing" section:
472 472  
473 -[[image:1733746797003-364.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
582 +[[image:1740404562825-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="168" width="800"]]
474 474  
475 475  In this section:
476 476  
477 -* Enable – a flag to enable cell balancing;
478 -* Balancing rule:
479 -** Balance on charge;
480 -** Balance on charge or relaxed;
481 -** Balance always;
586 +* **Enable **– a flag to enable cell balancing;
587 +* **Balancing rule**:
588 +** **Balance on charge** – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states);
589 +** **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);
590 +** **Balance always** – balancing is always performed regardless the battery state;
591 +* **Balancing condition**:
592 +** **Automatic **– balancing will be performed automatically if needed conditions are met;
593 +** **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;
594 +* **Minimum cell voltage to start balancing**, V;
595 +* **Voltage deviation to start balancing**;
596 +* **Voltage deviation to stop balancing**;
597 +* **Voltage to start forced balancing** – if cell voltage is above this value, it will start discharging through balancing resistor;
598 +* **Voltage to stop forced balancing** – if cell voltage is below this value, it will stop discharging through balancing resistor;
599 +* **Maximum allowable temperature of BMS Logic devices**, ºC;
600 +* **Command to discharge all cells** – a flag to force the balancing of all cells.
482 482  
483 -[[image:1733746797004-660.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
484 -
485 -* Minimum cell voltage to start balancing, V;
486 -* Balancing deviation, V.
487 -
488 488  === Power down ===
489 489  
490 -The BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time.
604 +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.
491 491  
492 492  Shutting down the battery system is performed according to the following conditions:
493 493  
... ... @@ -494,42 +494,44 @@
494 494  * the battery voltage is below the minimum level;
495 495  * the “Charger connected” signal is cleared for 60 seconds.
496 496  
497 -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.
611 +The BMS Mini S / BMS Mini 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.
498 498  
499 499  To change the parameters of the power down control, select the "Control → Power down" section:
500 500  
501 -[[image:1733746797005-459.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="115" width="800"]]
502 -
615 +[[image:1740404859367-943.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
503 503  In this section:
504 504  
505 -* Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V;
506 -* Idle time to power down – a time of battery inactivity after which the battery is shut down, minute;
507 -* 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.
618 +* **Minimum voltage to power down** – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V;
619 +* **Idle time to power down** – a time of battery inactivity after which the battery is shut down, minute;
620 +* **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.
621 +* **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.
508 508  
509 509  === Heater ===
510 510  
511 511  To change the parameters of the heater control algorithm, select the "Control → Heater" section:
512 512  
513 -[[image:1733746808496-606.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
514 -
627 +[[image:1777293968000-235.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
515 515  In this section:
516 516  
517 -* Enable – a flag to enable heater control;
518 -* Minimum cell temperature, °C;
519 -* Tolerant cell temperature, °C;
520 -* Delay before starting the heater, millisecond;
521 -* Delay before stopping the heater, millisecond;
522 -* Switch off the heater on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
630 +* **Enable **– a flag to enable the heater control;
631 +* **Minimum cell temperature**, °C;
632 +* **Tolerant cell temperature**, °C;
633 +* **Start the heater only if "Charger connected" signal is set**;
634 +* **Delay before starting the heater**, millisecond;
635 +* **Delay before stopping the heater**, millisecond;
636 +* **Errors 1, 2 to open the heater** – bitfields to choose the errors which will open the heater.
523 523  
524 524  As a result of operating the heating algorithm, the “Heater” signal is generated.
525 525  
526 526  Conditions for signal generation:
527 527  
528 -* 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.
642 +* 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;
643 +* there are no errors from "Errors 1, 2..." bitfields.
529 529  
530 530  Conditions for clearing the signal:
531 531  
532 -* 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.
647 +* 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;
648 +* there is an error from "Errors 1, 2..." bitfields.
533 533  
534 534  (% class="box infomessage" %)
535 535  (((
... ... @@ -540,26 +540,29 @@
540 540  
541 541  To change the parameters of the cooler control algorithm, select the "Control → Cooler" section:
542 542  
543 -[[image:1733746808497-424.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
544 544  
660 +[[image:1740405145695-704.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="149" width="800"]]
661 +
545 545  In this section:
546 546  
547 -* Enable – a flag to enable cooler control;
548 -* Maximum cell temperature, °C;
549 -* Tolerant cell temperature, °C;
550 -* Delay before starting the cooler, millisecond;
551 -* Delay before stopping the cooler, millisecond;
552 -* Switch off the cooler contactor on errors (Undervoltage, Overcurrent, Low temperature, Short circuit or Critical error).
664 +* **Enable** – a flag to enable the cooler control;
665 +* **Maximum cell temperature**, °C;
666 +* **Tolerant cell temperature**, °C;
667 +* **Delay before starting the cooler**, millisecond;
668 +* **Delay before stopping the cooler**, millisecond;
669 +* **Errors 1, 2 to open the cooler **– bitfields to choose the errors which will open the cooler.
553 553  
554 554  As a result of operating the cooling algorithm, the "Cooler" signal is generated.
555 555  
556 556  Conditions for signal generation:
557 557  
558 -* 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.
675 +* 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;
676 +* there are no errors from "Errors 1, 2..." bitfields.
559 559  
560 560  Conditions for clearing the signal:
561 561  
562 -* 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.
680 +* 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;
681 +* there is an error from "Errors 1, 2..." bitfields.
563 563  
564 564  (% class="box infomessage" %)
565 565  (((
... ... @@ -570,7 +570,7 @@
570 570  
571 571  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.
572 572  
573 -The BMS Mini device can automatically determine the battery discharge characteristic.
692 +The BMS Mini S / BMS Mini device can automatically determine the battery discharge characteristic.
574 574  
575 575  Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS:
576 576  
... ... @@ -583,20 +583,16 @@
583 583  
584 584  In this section:
585 585  
586 -* Enable – a flag to enable cell analysis;
587 -* Discharge step, Ah;
588 -* Delta voltage – a maximum allowable voltage drop for the cell, V;
589 -* Cell index – a position of the analyzed cell;
590 -* Analyse the most discharged cell – a flag to analyse of the least charged cell (in this case, the value “Cell index” is ignored).
705 +* **Enable **– a flag to enable cell analysis;
706 +* **Discharge step**, Ah;
707 +* **Delta voltage** – a maximum allowable voltage drop for the cell, V;
708 +* **Cell index** – a position of the analyzed cell;
709 +* **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).
591 591  
592 -Discharge step should be set equal to
711 +Discharge step should be set equal to С/21, where C is the cell capacity.
593 593  
594 -Discharge step= С/21,
713 +The discharge characteristic will be constructed for the given cell (its position is determined by the fields “Logic index” and “Cell index”).
595 595  
596 -where C is the cell capacity.
597 -
598 -The discharge characteristic will be constructed for the given cell (its position is determined by the field “Cell index”).
599 -
600 600  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.
601 601  
602 602  Algorithm steps:
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