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Changes for page 3.3 Control

Last modified by Admin on 2026/04/30 15:58
From version 55.3
edited by Admin
on 2026/04/30 15:42
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To version 6.3
edited by Admin
on 2025/02/24 10:58
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -12,37 +12,35 @@
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 (after 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 (atfer 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**”  is used for starting-up and adjustment of the battery and will reset:
25 +The “Reset parameters” 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 +
31 31  === SOC estimation ===
32 32  
33 -The BMS Mini S / BMS Mini device calculates the state of charge (SOC) of each cell by using following algorithms:
35 +The BMS Mini device calculates the state of charge of the battery (SOC) using two algorithms:
34 34  
35 -The **“Voltage”** SOC calculation algorithm calculates cells SOC based on the tabular dependence Uocv = Uocv(SOC, t °C).
37 +* by open circuit voltage;
38 +* by voltage and current.
36 36  
37 -The **“Current and voltage (simplified)”** SOC calculation algorithm works as follows:
40 +It is recommended to use the algorithm of calculation of SOC by voltage and current.
38 38  
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).
42 +To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section:
41 41  
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 -
46 46  [[image:1733746733477-590.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="166" width="800"]]
47 47  
48 48  The following estimation algorithms supported:
... ... @@ -64,30 +64,35 @@
64 64  
65 65  [[image:1733746733478-414.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="167" width="800"]]
66 66  
65 +The following battery Final SOC calculation methods are supported:
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.
71 +
72 +To change other settings of SOC estimation, select the "Control → SOC estimation” section:
73 +
74 +
67 67  In this section:
68 68  
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.
77 +* (((
78 +Other parameters:
79 +)))
80 +* Scale the final SOC – a flag to scale the battery SOC by the following values;
81 +* SOC corresponding to 0% – the battery SOC that sets to be 0%;
82 +* SOC corresponding to 100% – the battery SOC that sets to be 100%.
83 +* Uocv (open-circuit voltage) table – the dependence of the cell open circuit voltage Uocv on SOC and the cell temperature (selected for specific batteries);
84 +* Linear zone - linear zone of the Uocv = Uocv(SOC, t°C) dependency, inside which the cell voltage changes insignificantly:
85 +** Linear zone: point 1 – starting point of the Uocv linear zone;
86 +** Linear zone: point 2 – ending point of the Uocv linear zone;
87 +* Coulomb counting correction (temperature) – the dependence of battery capacity on temperature;
88 +* Coulomb counting correction (cycles) – the dependence of battery capacity on the number of charge-discharge cycles.
87 87  
90 +
88 88  === SOC correction ===
89 89  
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"]]).
93 +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"]]).
91 91  
92 92  To configure parameters for periodically correcting the battery state of charge, select the "Control → SOC correction" section:
93 93  
... ... @@ -95,37 +95,29 @@
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.
101 +* Enable – a flag to enable SOC correction;
102 +* 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);
103 +* 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”.
104 +* SOC change time – a duration of the linear changing the battery SOC to the value calculated by the correction algorithm, minute;
105 +* Ignore the linear zone – a flag to ignore linear SOC zone while correction;
106 +* Last correction timestamp – time when last correction was made.
104 104  
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
108 108  
109 -{{formula fontSize="SMALL" imageType="PNG"}}
110 -R = \frac{U-U_{ocv}}{I_{stable}}
111 -{{/formula}}
112 +R = (U-U,,ocv,,) / I,,stable,,,
112 112  
113 113  where U is the cell voltage measured in the charge or discharge state, V; U,,ocv,, is the cell voltage measured in the state of relaxation (before switching to the state of charge or discharge); I,,stable,, – stabilized current through the cell in the state of charge or discharge.
114 114  
115 115  The second method is used for a stepwise change in the current through the cell, while the value of the cell resistance:
116 116  
117 -{{formula fontSize="SMALL"}}
118 -R = \frac{U_2-U_1}{I_{stable2}-I_{stable1}}
119 -{{/formula}}
118 +R = (U,,2,,-U,,1,,) / (I,,stable2,,-I,,stable1,,) provided that | I,,stable2,,-I,,stable1,, | > 0.2 × Q,,max,,
120 120  
121 -provided that
120 +(Q,,max,, is the maximum cell capacity),
122 122  
123 -{{formula fontSize="SMALL"}}
124 -| I_{stable2}-I_{stable1} | > 0.2 × Qmax
125 -{{/formula}}
122 +where U,,2,, is the voltage on the cell at the moment when the stabilized current I,,stable2,, is flowing through it; U,,1,, – the voltage on the cell at the moment when the stabilized current I,,stable1,, flowing through it.
126 126  
127 -where Q,,max,, — the maximum cell capacity,U,,2,, — voltage on the cell at the moment when the stabilized current I,,stable2,, is flowing through it; U,,1,, — the voltage on the cell at the moment when the stabilized current I,,stable1,, flowing through it.
128 -
129 129  The stabilized current I,,stable,, = I, if during the stabilization time the instantaneous current I is in the range from 0.95 × I to 1.05 × I.
130 130  
131 131  To change parameters of the algorithm for calculating the cell resistance, select the "Control → Resistance estimation" section:
... ... @@ -134,248 +134,80 @@
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.
132 +* Current stabilization time, millisecond;
133 +* 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;
134 +* Maximum resistance factor – the coefficient of calculation of the maximum acceptable resistance of the cell;
135 +* Minimum SOC – minimum cell SOC value for resistance calculation;
136 +* 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 -=== Low SOC (signal) ===
146 -
147 -To change the parameters of the generation a signal about low battery level, select the "Control → Low SOC (signal)" section:
148 -
149 -[[image:1740396460923-423.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
150 -
151 -In this section:
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.
159 -
160 -Signal generation conditions:
161 -
162 -* the battery SOC is less than the “Minimum SOC” value during the “Delay before setting the signal” time.
163 -
164 -Conditions for clearing the signal:
165 -
166 -* the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time.
167 -
168 -(% class="box infomessage" %)
169 -(((
170 -The "Low SOC signal" is indicative and can be output to a discrete output or a power switch.
171 -)))
172 -
173 -=== High charging current (signal) ===
174 -
175 -To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section:
176 -
177 -[[image:1740396996935-403.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]]
178 -
179 -In this section:
180 -
181 -* Enable – a flag to enable signal generation;
182 -* Maximum charging current, А;
183 -* Tolerant charging current, А;
184 -* Delay before setting the signal, second;
185 -* Delay before clearing the signal, second;
186 -* Lock – lock the signal until the device is reset.
187 -
188 -Signal generation conditions:
189 -
190 -* the measured current is greater than the “Maximum charging current” value during the “Delay before setting the signal” time.
191 -
192 -Conditions for clearing the signal:
193 -
194 -* the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time.
195 -
196 -(% class="box infomessage" %)
197 -(((
198 -The "High charging current" signal is indicative and can be output to a discrete output or a power switch.
199 -)))
200 -
201 201  === Charge map ===
202 202  
203 -The BMS Mini S / BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
142 +The BMS Mini device calculates maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
204 204  
205 205  Calculated current values are sending to a charger or an intellectual load over the CAN bus.
206 206  
207 207  To configure parameters for determining the charge current limit, select the "Control → Charge map" section:
208 208  
209 -[[image:1740397188247-315.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
148 +[[image:1733746766504-864.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
149 +
210 210  In this section:
211 211  
212 212  * Enable – a flag to start calculation of the charge current limit;
213 -* Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
214 -* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
215 -* 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;
153 +* Maximum charge current – a maximum allowable value of the charge current (under normal conditions):
154 +* 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;
216 216  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
217 -* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
156 +
157 +[[image:1733746766506-660.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="196" width="800"]]
158 +
159 +* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current Kcc depending on contactor temperature;
218 218  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
219 -* 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)
220 -* Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
221 -* 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;
222 -* Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
223 223  
224 -Value of the charge current limit at given SOC, temperature, contactors temperature, maximum cell voltage and maximum cell temperature is calculated as follows:
162 +[[image:1733746766508-178.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="184" width="800"]]
225 225  
226 -**Charge current limit = Maximum charge current × Kcs × Kcc × Kcv × Kct**
164 +* 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;
165 +* Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage.
227 227  
167 +[[image:1733746766509-971.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="217" width="800"]]
168 +
169 +Value of the charge current limit at given SOC, temperature, contactors temperature and maximum cell voltage is calculated as follows:
170 +
171 +Charging current limit = Maximum charging current × Kcs × Kcc × Kcv
172 +
228 228  === Discharge map ===
229 229  
230 -The BMS Mini S / BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
175 +The BMS Mini device calculates maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
231 231  
232 232  Calculated current values are sending to a charger or an intellectual load over the CAN bus.
233 233  
234 234  To configure parameters for determining the discharge current limit, select the "Control → Discharge map" section:
235 235  
236 -[[image:1740397304972-174.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="182" width="800"]]
181 +[[image:1733746766511-477.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="149" width="800"]]
237 237  
238 238  In this section:
239 239  
240 240  * Enable – a flag to start calculation of the discharge current limit;
241 -* Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;
242 -* Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
243 -* 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;
186 +* Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions):
187 +* 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;
244 244  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
245 -* Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
246 -* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
247 -* 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)
248 -* Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;
249 -* 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;
250 -* Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.
251 251  
252 -Value of the discharge current limit at given SOC, temperature, contactors temperature, minimum cell voltage and maximum cell temperature is calculated as follows:
190 +[[image:1733746766512-300.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="195" width="800"]]
253 253  
254 -**Discharge current limit = Maximum discharge current × Kds × Kdc × Kdv × Kdt**
192 +* Option 2: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current Kdc depending on contactor temperature;
193 +* Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
255 255  
256 -=== Main contactor ===
195 +[[image:1733746766513-161.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="183" width="800"]]
257 257  
258 -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 a case of sealing of the charging or discharging contactors.
197 +* 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;
198 +* Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage.
259 259  
260 -The Main contactor algorithm supports the following modes:
200 +[[image:1733746766514-686.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="215" width="800"]]
261 261  
262 -* Always on;
263 -* Automatic.
202 +Value of the discharge current limit at given SOC, temperature, contactors temperature and minimum cell voltage is calculated as follows:
264 264  
265 -In “Always on” mode main contactor closes if all the following is true:
204 +Discharging current limit = Maximum discharging current × Kds × Kdc × Kdv
266 266  
267 -* Other contactors are open;
268 -* There are no errors from the "Errors 1, 2 ..." bitfileds.
269 -
270 -In “Always on” mode main contactor opens if all the following is true:
271 -
272 -* Other contactors are open;
273 -* There is an error from the the "Errors 1, 2 ..." bitfileds.
274 -
275 -In “Automatic” mode, the main contactor closes by internal algorithms at the same time with other contactors.
276 -
277 -In “On demand” mode, the main contactor closes by external the “Close Main contactor” request.
278 -
279 -(% class="box infomessage" %)
280 -(((
281 -**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).
282 -)))
283 -
284 -To change the parameters of the main contactor, select the "Control → Main contactor" section:
285 -
286 -[[image:1740397558976-651.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="144" width="800"]]
287 -
288 -In this section:
289 -
290 -* Enable – a flag to enable the main contactor control;
291 -* Algorithm – main contactor control algorithm:
292 -** Always on – contactor is always closed;
293 -** Automatic – contactor closes by internal charge and discharge algorithms;
294 -** On demand – contactor is closed by an external request;
295 -* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed;
296 -* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, s;
297 -* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset;
298 -* Errors 1, 2 to open the main contactor – bitfields to choose the errors which will open the main contactor.
299 -
300 -=== Charging status ===
301 -
302 -To change the parameters of charging process status, select the "Control → Charging status" section:
303 -
304 -[[image:1762774819522-147.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="140" width="800"]]
305 -In this section:
306 -
307 -* Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A;
308 -* Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
309 -* Use actual voltage to generate the "Ready to charge" signal – a flag to disable voltage correction for "Ready to charge" signal;
310 -* 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;
311 -* 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;
312 -* 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;
313 -* 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;
314 -* 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;
315 -* 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;
316 -* 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;
317 -* Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
318 -
319 -(% class="box infomessage" %)
320 -(((
321 -**Note:** The "Allow charging" signal activates under two independent conditions:
322 -1) the voltage on the cells reaches the “Voltage to reset the “Ready to charge"” level and
323 -2) the "Delay before recharging" time has passed since the opening of the allow charging contactor.
324 -)))
325 -
326 -=== Discharging status ===
327 -
328 -To change the parameters of discharging process status, select the "Control → Discharging status" section:
329 -
330 -[[image:1762774840204-111.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="800"]]In this section:
331 -
332 -* Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
333 -* Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
334 -* Use actual voltage to generate the "Ready to discharge" signal – a flag to disable voltage correction for "Ready to discharge" signal;
335 -* 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;
336 -* 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;
337 -* 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;
338 -* 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;
339 -* 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;
340 -* 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;
341 -* Clear the 'Ready to discharge' signal if the 'Low SOC' signal is set;
342 -* Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
343 -
344 -=== Precharge ===
345 -
346 -The BMS Main 3 device can control the precharge contactor. The precharge contactor is used to charge the intermediate capacity with low current and usually placed with the limiting resistor in parallel to charging or discharging contactor.
347 -
348 -BMS Main 3 device detects errors while pre-charging the load capacity by monitoring the current and voltage difference before and after contactors. Also BMS can measure the power dissipated on precharge resistor and generate an error if it greater than configured limit.
349 -
350 -To change the parameters of precharge contactor, select the "Control → Precharge" section:
351 -
352 -[[image:1754931813173-804.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="172" width="800"]]
353 -
354 -In this section:
355 -
356 -* Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
357 -* 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;
358 -* Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
359 -* Delay before current measurement – a delay before first current measurement after closing precharge, millisecond;
360 -* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
361 -* Relaxation between attempts – a duration between precharge attempts, millisecond;
362 -* Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
363 -* Precharge resistor resistance, Ohm;
364 -* Maximum allowable power dissipated in the resistor, W;
365 -* Delay before setting the "Precharge error" when checking power, millisecond;
366 -* Delay before clearing the "Precharge error", second;
367 -* Lock the "Precharge error" – a flag to block the error until the device is restarted.
368 -
369 -“Precharge error” generation conditions if any of the following is true:
370 -
371 -* the precharge current does not decrease during the "Precharge time" after "Number of precharging attempts";
372 -* power dissipated on the precharge resistor is above the maximum value during the “Delay before setting the 'Precharge error' when checking power” time.
373 -
374 -(% class="box warningmessage" %)
375 -(((
376 -Behavior of contactors at “Precharge error” is configured in corresponding contactor settings!
377 -)))
378 -
379 379  === Charge ===
380 380  
381 381  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.
... ... @@ -382,40 +382,51 @@
382 382  
383 383  The device supports three charge control algorithms:
384 384  
385 -* Always on – charging is always allowed;
386 -* On charger connected – charging is allowed when there is a signal “Charger connected”;
387 -* On charge request – charging is allowed when there is a signal “Charge request”.
212 +* charging is always allowed;
213 +* charging is allowed when there is a signal “Charger connected”;
214 +* charging is allowed when there is a signal “Charge request”.
388 388  
389 -If the "**Always on**" algorithm is selected, the charging contactor and the allow charging contactor are always closed. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals:
216 +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:
390 390  
391 -* Service reset;
392 -* Power down request;
393 -* Inhibit charging,
218 +* Overvoltage;
219 +* Overcurrent;
220 +* High temperature (CH);
221 +* Low temperature (CH);
222 +* HYG offline (optional);
223 +* Combilift offline (optional);
224 +* Spirit offline (optional);
225 +* Spirit charger error (optional);
226 +* Short circuit (optional);
227 +* High contactor temperature (optional);
228 +* CH contactor cycles error;
229 +* Critical error
394 394  
395 395  both contactors are open (no current flows).
396 396  
397 -When the algorithm "**On charger connected**" is selected, the control is performed as follows:
233 +When the algorithm "**On Charger connected**" is selected, the control is performed as follows:
398 398  
399 -* If there is a signal “Charger connected” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the charging contactor and the allow charging contactor close;
235 +* 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;
400 400  * If the signal “Charger connected” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens;
401 401  * 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);
402 -* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open.
238 +* If errors in the list above occur the charging contactor and allow charging contactor open.
403 403  
404 -When the "**On charge request**" algorithm selected, the control is performed as follows:
240 +When the "**On Charge request**" algorithm selected, the control is performed as follows:
405 405  
406 -* If there is a signal “Charge request” and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the charging contactor and the allow charging contactor close;
242 +* 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;
407 407  * If the signal “Charge request” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens;
408 408  * 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);
409 -* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open.
245 +* If errors in the list above occur the charging contactor and allow charging contactor open.
410 410  
411 411  (% class="box infomessage" %)
412 412  (((
413 -**Note: **when errors occur in the system, the **Charge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
249 +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).
414 414  )))
415 415  
252 +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.
253 +
416 416  To change the parameters of the battery charge control algorithm, select the "Control → Charge" section:
417 417  
418 -[[image:1740399363134-722.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="306" width="800"]]
256 +[[image:1733746766516-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="319" width="800"]]
419 419  
420 420  In this section:
421 421  
... ... @@ -424,15 +424,23 @@
424 424  ** Always on – charging is always allowed;
425 425  ** On charger connected – charging is allowed when there is a signal “Charger connected”;
426 426  ** On charge request – charging is allowed when there is a signal “Charge request”;
427 -* Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared;
265 +* Current corresponding to charging – a current level to generate the "Charging current present" signal, A;
266 +* Current corresponding to no charging – a current level to clear the "Charging current present" signal, A;
428 428  * Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
429 429  * Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
430 -* Control the precharging contactor – a flag that allows control of the precharging contactor (see [[Precharge>>url:http://#HPrecharge]]);
431 431  * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
432 -* Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor;
433 433  * Custom delay: <error> – specific error delay, millisecond;
434 434  * 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”;
272 +* Control the precharging contactor – a flag that allows control of the precharging contactor;
273 +* 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;
274 +* 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;
275 +* 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.
435 435  
277 +(% class="box infomessage" %)
278 +(((
279 +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.
280 +)))
281 +
436 436  === Discharge ===
437 437  
438 438  The device controls the discharging contactor to connect battery to the load.
... ... @@ -439,36 +439,50 @@
439 439  
440 440  The device supports three algorithms to control battery discharging:
441 441  
442 -* Always on – load is always connected;
443 -* On charger disconnected – load is connected when there is no signal “Charger connected”;
444 -* On discharge request – load is connected when there is signal “Discharge request”.
288 +* load is always connected;
289 +* load is connected when there is no signal “Charger connected”;
290 +* load is connected when there is signal “Discharge request”.
445 445  
446 -When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors from the "Errors 1, 2 ..." bitfields appears or one of the signals:
292 +When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors appears:
447 447  
448 -* Service reset
449 -* Power down request
450 -* Inhibit discharging
294 +* Undervoltage;
295 +* Overvoltage (optional);
296 +* Overcurrent;
297 +* High temperature (DCH);
298 +* Low temperature (DCH) (optional);
299 +* HYG offline (optional);
300 +* Combilift offline (optional);
301 +* Spirit offline (optional);
302 +* Spirit charger error (optional);
303 +* Short circuit (optional);
304 +* High contactor temperature (optional);
305 +* DCH contactor cycles error;
306 +* Critical error
451 451  
452 452  the discharging contactor opens.
453 453  
454 -If the algorithm "**On charger disconnected**" is selected, the control is performed as follows:
310 +If the algorithm "**On Charger disconnected**" is selected, the control is performed as follows:
455 455  
456 -* if there is no signal “Charger connected”, the charging contactor is open and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the discharging contactor closes;
457 -* If the signal “Charger connected” appears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the discharging contactor opens.
312 +* 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;
313 +* If the signal “Charger connected” appears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
458 458  
459 -When the "**On discharge request**" algorithm selected, the control is performed as follows:
315 +When the "**On Discharge request**" algorithm selected, the control is performed as follows:
460 460  
461 -* if there is signal “Discharge request”, the charging contactor is open and there are no errors (see the "Errors 1, 2 ..." bitfields), then through the delay time T,,on,, the discharging contactor closes;
462 -* If the signal “Discharge request” disappears or errors occur (see the "Errors 1, 2 ..." bitfields), then after the delay time T,,off,, the discharging contactor opens.
317 +* 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;
318 +* If the signal “Discharge request” disappears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
463 463  
464 464  (% class="box infomessage" %)
465 465  (((
466 -**Note: **when errors occur in the system, the **Discharge **contactor opens either immediately or with the delay T,,off,, (depends on the settings described below).
322 +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).
467 467  )))
468 468  
325 +The device supports controlling the precharging contactor. The duration of switching on the precharging contactor before closing the discharging (load) contactor is adjusted.
326 +
327 +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.
328 +
469 469  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
470 470  
471 -[[image:1740399783613-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="311" width="800"]]
331 +[[image:1733746885414-479.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="319" width="800"]]
472 472  
473 473  In this section:
474 474  
... ... @@ -477,55 +477,32 @@
477 477  ** Always on – load is always connected;
478 478  ** On charger disconnected – load is connected when there is no signal “Charger connected”;
479 479  ** On discharge request – load is connected when there is signal “Discharge request”;
480 -* Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared;
340 +* Current corresponding to discharging – a current level to generate the "Discharging current present" signal, А;
341 +* Current indicating no discharging – a current level to clear the "Discharging current present" signal, А;
481 481  * Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond;
482 482  * Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond;
483 -* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>path:#HPrecharge]]);
484 -* Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor;
485 485  * Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
486 486  * Custom delay: <error> – specific error delay, millisecond;
487 487  * 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”.
347 +* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
348 +* 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;
349 +* 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;
488 488  
489 489  === Charge/Discharge ===
490 490  
491 -The BMS Mini S / BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
353 +The BMS Mini device can control the charging/discharging contactor that is used to both charge and discharge the battery.
492 492  
493 -Charge/Discharge contactor has three algorithms of operation:
355 +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.
494 494  
495 -* 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;
496 -* Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
497 -* Independent (on Charge request or Discharge request) - Charge/Discharge contactor is based on its own controller that listen to Charge and Discharge requests and closes if one of these signals occurs.
498 -
499 -TBA
500 -
501 -(% class="box infomessage" %)
502 -(((
503 -**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).
504 -)))
505 -
506 506  The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section:
507 507  
508 -[[image:1740400166950-906.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="211" width="800"]]
359 +[[image:1733746901779-991.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="95" width="800"]]In this section:
509 509  
510 -In this section:
511 -
512 512  * Enable – a flag to enable the charge/discharge controller.
513 -* Algorithm:
514 -** 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;
515 -** Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
516 -** Independent (on Charge request or Discharge request);
517 -* Delay before starting charging or discharging, millisecond;
518 -* Delay before stopping charging or discharging, millisecond;
519 -* Control the precharging contactor – a flag that enables control of precharging contactor while closing the charge/discharge contactor;
520 -* Emulate the "Charging" and "Discharging" signals – a flag to enable generation of "Charging" and "Discharging" signals when closing charge/discharge contactor;
521 -* 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;
522 -* 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;
523 -* 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;
524 -* 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”.
525 525  
526 526  === Discharge (AUX) ===
527 527  
528 -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.
365 +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.
529 529  
530 530  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.
531 531  
... ... @@ -537,8 +537,8 @@
537 537  
538 538  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
539 539  
377 +[[image:1733746932199-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="137" width="800"]]
540 540  
541 -[[image:1740400254884-851.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="800"]]
542 542  In this section:
543 543  
544 544  * Enable – a flag to activate the auxiliary discharge control;
... ... @@ -545,46 +545,67 @@
545 545  * Switch off the discharging (AUX) contactor if the SOC is too low;
546 546  * Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %;
547 547  * Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %;
548 -* Switch off the discharging (AUX) contactor if the cell voltage is out of the range;
549 -* Minimum cell voltage, V;
550 -* Maximum cell voltage, V;
551 551  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
552 -* Minimum battery voltage, V;
553 -* Maximum battery voltage, V;
554 -* Errors 1, 2 to open the auxiliary discharging contactor – bitfields to choose the errors which will open the auxiliary discharging contactor.
386 +* Minimum voltage – minimum battery voltage, V;
387 +* Maximum voltage – maximum battery voltage, V;
388 +* 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.
555 555  
390 +=== Main contactor ===
391 +
392 +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.
393 +
394 +The main contactor closes if there are no errors from the list below:
395 +
396 +* Overcurrent;
397 +* Undervoltage;
398 +* Overvoltage;
399 +* High temperature (CH);
400 +* High temperature (DCH);
401 +* Unallowable charging;
402 +* Critical error.
403 +
404 +The main contactor opens if the charging and discharging contactors are opened and any of the following conditions is met:
405 +
406 +* charging or discharging current is detected during a set time;
407 +* voltage of any cell is lower than the minimum cell voltage configured in the section "Protections → Undervoltage" during a set time;
408 +* voltage of any cell is greater than the maximum cell voltage configured in the section "Protections → Overvoltage" during a set time;
409 +* temperature of any cell is greater than the maximum cell temperature configured in the section "Protections → High temperature" during a set time;
410 +* Critical error stays on during a set time.
411 +
412 +To change the parameters of the main contactor, select the "Control → Main contactor" section:
413 +
414 +[[image:1733746797002-498.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="93" width="800"]]
415 +
416 +In this section:
417 +
418 +* Enable – a flag to enable the main contactor control;
419 +* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, second;
420 +* Keep the contactor open until the device is restarted – a flag for keeping the main contactor opened until the system be reset.
421 +
556 556  === Cell balancing ===
557 557  
558 -Balancing makes the voltage of all cells equal to the minimum cell voltage.
424 +Balancing makes the voltage of all cells be equal to the minimum cell voltage.
559 559  
560 560  The following balancing rules are supported:
561 561  
562 -* when the battery is charging (current I > 0) and time after until the battery is relaxed;
428 +* only when the battery is charging (current I > 0) and some time until the battery is relaxed;
563 563  * when the battery is charging (current I > 0) or when the battery is in a state of relaxation;
564 564  * always (regardless of battery state).
565 565  
566 -A balancing resistor is connected to the cell if the following conditions are simultaneously met:
432 +A balancing resistor is connected to the cell if:
567 567  
568 -* the voltage on the cell is higher than the balancing start voltage;
569 -* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold;
434 +* the voltage on the cell is higher than the starting voltage of the balancing;
435 +* the difference between the cell voltage and the minimum voltage among the cells of the battery is greater than the balancing deviation.
570 570  
571 -A balancing resistor is disconnected from the cell if any of the following conditions are met:
572 -
573 -* the voltage on the cell is less than the balancing stop voltage;
574 -* the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
575 -
576 576  (% class="box infomessage" %)
577 577  (((
578 -If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
439 +If the BMS Mini overheats, then the balancing of the cells connected to this device will not be performed.
579 579  )))
580 580  
581 -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.
582 -
583 -BMS Mini S / BMS Mini device can force a cell balancing, if its voltage is higher than estimated value.
584 -
585 585  To change the cell balancing parameters, select the "Control → Cell balancing" section:
586 586  
587 -[[image:1740404562825-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="168" width="800"]]
444 +[[image:1733746797003-364.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
445 +
588 588  In this section:
589 589  
590 590  * Enable – a flag to enable cell balancing;
... ... @@ -592,19 +592,15 @@
592 592  ** Balance on charge;
593 593  ** Balance on charge or relaxed;
594 594  ** Balance always;
595 -* Balancing condition:
596 -** Automatic – balancing will be performed automatically if needed conditions are met;
597 -** 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;
453 +
454 +[[image:1733746797004-660.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="104" width="800"]]
455 +
598 598  * Minimum cell voltage to start balancing, V;
599 -* Voltage deviation to start balancing;
600 -* Voltage deviation to stop balancing;
601 -* Voltage for forced balancing – if cell voltage is above this value, it will start discharging through balancing resistor;
602 -* Maximum allowable temperature of the board, ºC;
603 -* Command to discharge all cells – a flag to force the balancing of all cells.
457 +* Balancing deviation, V.
604 604  
605 605  === Power down ===
606 606  
607 -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.
461 +The BMS Mini device can shut down itself if the battery voltage is low or the battery is idle for a long time.
608 608  
609 609  Shutting down the battery system is performed according to the following conditions:
610 610  
... ... @@ -611,32 +611,32 @@
611 611  * the battery voltage is below the minimum level;
612 612  * the “Charger connected” signal is cleared for 60 seconds.
613 613  
614 -The BMS Mini S / BMS Mini device also shuts down the battery if it stays in the “Charging OFF”, “Discharging OFF”, “Relaxed (after charging)” or “Relaxed (after discharging)” for the set time.
468 +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.
615 615  
616 616  To change the parameters of the power down control, select the "Control → Power down" section:
617 617  
618 -[[image:1740404859367-943.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
472 +[[image:1733746797005-459.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="115" width="800"]]
473 +
619 619  In this section:
620 620  
621 621  * Minimum voltage to power down – a minimum voltage level of the battery below which the BMS commands to shut down the battery, V;
622 622  * Idle time to power down – a time of battery inactivity after which the battery is shut down, minute;
623 -* 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;
624 -* Delay before setting the internal power down signal – a delay before turning off the device power when receiving the “Power down request” command, ms.
478 +* 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.
625 625  
626 626  === Heater ===
627 627  
628 628  To change the parameters of the heater control algorithm, select the "Control → Heater" section:
629 629  
630 -[[image:1777293968000-235.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
484 +[[image:1733746808496-606.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
485 +
631 631  In this section:
632 632  
633 633  * Enable – a flag to enable heater control;
634 634  * Minimum cell temperature, °C;
635 635  * Tolerant cell temperature, °C;
636 -* Start the heater only if "Charger connected" signal is set;
637 637  * Delay before starting the heater, millisecond;
638 638  * Delay before stopping the heater, millisecond;
639 -* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the heater.
493 +* Switch off the heater on errors (Undervoltage, Overcurrent, High temperature, Short circuit or Critical error).
640 640  
641 641  As a result of operating the heating algorithm, the “Heater” signal is generated.
642 642  
... ... @@ -657,8 +657,8 @@
657 657  
658 658  To change the parameters of the cooler control algorithm, select the "Control → Cooler" section:
659 659  
514 +[[image:1733746808497-424.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
660 660  
661 -[[image:1740405145695-704.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="149" width="800"]]
662 662  In this section:
663 663  
664 664  * Enable – a flag to enable cooler control;
... ... @@ -666,7 +666,7 @@
666 666  * Tolerant cell temperature, °C;
667 667  * Delay before starting the cooler, millisecond;
668 668  * Delay before stopping the cooler, millisecond;
669 -* Errors 1, 2 to turn off the heater – bitfields to choose the errors which will turn off the cooler.
523 +* Switch off the cooler contactor on errors (Undervoltage, Overcurrent, Low temperature, Short circuit or Critical error).
670 670  
671 671  As a result of operating the cooling algorithm, the "Cooler" signal is generated.
672 672  
... ... @@ -687,7 +687,7 @@
687 687  
688 688  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.
689 689  
690 -The BMS Mini S / BMS Mini device can automatically determine the battery discharge characteristic.
544 +The BMS Mini device can automatically determine the battery discharge characteristic.
691 691  
692 692  Before starting the process of determining the discharge characteristic, it is necessary to prepare a BMS:
693 693  
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