Changes for page 3.3 Control

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From version 1.4
edited by Admin
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To version 46.1
edited by Admin
on 2025/04/09 12:14
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Summary

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Parent
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1 -drafts.bms-main-3.3\. Settings.WebHome
1 +Battery management systems.BMS Main 3.3\. Configuration.WebHome
Content
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1 -1.
2 -11.
3 -111. Common settings
1 +(% data-numbered-headings-start="3" style="--numbered-headings-start: 2;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
2 += Configuration =
4 4  
4 +(% data-numbered-headings-start="3" style="--numbered-headings-start: 2;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5 +== Control ==
6 +
7 +=== Common settings ===
8 +
5 5  To change the common BMS settings, select the "Control → Common settings" section:
6 6  
7 -[[image:1733322611547-671.png]]
11 +[[image:1735054851946-552.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="105" width="800"]]
8 8  
9 9  In this section:
10 10  
... ... @@ -12,10 +12,12 @@
12 12  * Cell resistance – nominal (maximum) internal resistance of the cells, Ohm;
13 13  * Relax time (after charging) – a relaxation time after charging, second;
14 14  * Relax time (atfer discharging) – a relaxation time after discharging, second;
15 -* Number of cycles – a number of charge-discharge cycles;
16 -* Reset parameters – a command to reset cells state of charge, capacity, and resistance.
19 +* Reset parameters – a command to reset cells state of charge, capacity, and resistance;
20 +* Method of calculating the battery voltage:
21 +** Summation of cell voltages – the overall voltage is calculated as on sum of all cells in the battery;
22 +** Using voltage before contactors – the overall voltage is estimated as voltage before contactors measured by BMS.
17 17  
18 -The values “Capacity”, “Resistance”, “Cycles” are used to calculate the SOC of cells and the battery.
24 +The values “Capacity” and “Resistance” are used to calculate the SOC of cells and the battery.
19 19  
20 20  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.
21 21  
... ... @@ -27,11 +27,8 @@
27 27  
28 28  The “Reset parameters” command is used for starting-up and adjustment of the battery.
29 29  
36 +=== SOC estimation ===
30 30  
31 -1.
32 -11.
33 -111. SOC estimation
34 -
35 35  The BMS Main 3 device calculates the state of charge of the battery (SOC) using two algorithms:
36 36  
37 37  * by open circuit voltage;
... ... @@ -41,8 +41,9 @@
41 41  
42 42  To change the estimation algorithm for calculating the battery SOC, select the "Control → SOC estimation → Algorithm" section:
43 43  
44 -[[image:1733322611549-423.png]]
45 45  
48 +[[image:1735056107942-306.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="141" width="800"]]
49 +
46 46  The following estimation algorithms supported:
47 47  
48 48  * Voltage – by open circuit voltage;
... ... @@ -60,13 +60,14 @@
60 60  
61 61  To change the algorithm for calculating the Final SOC, select the "Control → SOC estimation → Final SOC" section:
62 62  
63 -[[image:1733322611551-852.png]]
67 +[[image:1733322611551-852.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="148" width="800"]]
64 64  
65 65  The following calculation methods are supported (“Final SOC”):
66 66  
67 67  * Minimal SOC – the battery SOC is assumed to be the minimum SOC among the cells;
68 68  * Average SOC – the battery SOC is taken equal to the arithmetic average of the cell SOC;
69 -* Min-Max SOC – the battery SOC is taken based on the minimum and maximum SOC of the cells (recommended method).
73 +* Min-Max SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if any cell has 100% SOC, b) 0% if any cell has 0% SOC;
74 +* Max-Min SOC – the battery SOC is calculated based on the minimum and maximum SOC of the cells. Final SOC will be a) 100% if all cells have 100% SOC, b) 0% if all cells have 0% SOC.
70 70  
71 71  Other parameters:
72 72  
... ... @@ -80,15 +80,13 @@
80 80  * Coulomb counting correction (temperature) – the dependence of battery capacity on temperature;
81 81  * Coulomb counting correction (cycles) – the dependence of battery capacity on the number of charge-discharge cycles.
82 82  
83 -1.
84 -11.
85 -111. SOC correction
88 +=== SOC correction ===
86 86  
87 -The BMS Main 3 device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see section** **2.3.2).
90 +The BMS Main 3 device can recalculate the battery SOC after long-term storage or after long-term working in the case when the battery was not charged fully or discharged totally. Recalculation is done based on the tabular dependency Uocv = Uocv (SOC, t) (see [[SOC estimation>>doc:||anchor="HSOCestimation"]]).
88 88  
89 89  To configure parameters for periodically correcting the battery state of charge, select the "Control → SOC correction" section:
90 90  
91 -[[image:1733322624656-766.png]]
94 +[[image:1733322624656-766.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="121" width="800"]]
92 92  
93 93  In this section:
94 94  
... ... @@ -99,30 +99,35 @@
99 99  * Ignore the linear zone – a flag to ignore linear SOC zone while correction (recommended to be unset);
100 100  * Last correction timestamp – time when last correction was made.
101 101  
105 +=== Resistance estimation ===
102 102  
103 -1.
104 -11.
105 -111. Resistance estimation
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 -R = (U-U,,ocv,,) / I,,stable,,,
109 +{{formula fontSize="SMALL" imageType="PNG"}}
110 +R = \frac{U-U_{ocv}}{I_{stable}}
111 +{{/formula}}
110 110  
111 -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.
113 +where U the cell voltage measured in the charge or discharge state, V; U,,ocv,, — 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.
112 112  
113 113  The second method is used for a stepwise change in the current through the cell, while the value of the cell resistance:
114 114  
115 -R = (U,,2,,-U,,1,,) / (I,,stable2,,-I,,stable1,,) provided that | I,,stable2,,-I,,stable1,, | > 0.2 × Q,,max,,
117 +{{formula fontSize="SMALL"}}
118 +R = \frac{U_2-U_1}{I_{stable2}-I_{stable1}}
119 +{{/formula}}
116 116  
117 -(Q,,max,, is the maximum cell capacity),
121 +provided that
118 118  
119 -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.
123 +{{formula fontSize="SMALL"}}
124 +| I_{stable2}-I_{stable1} | > 0.2 × Qmax
125 +{{/formula}}
120 120  
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 +
121 121  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.
122 122  
123 123  To change parameters of the algorithm for calculating the cell resistance, select the "Control → Resistance estimation" section:
124 124  
125 -[[image:1733322624659-473.png]]
133 +[[image:1733322624659-473.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="108" width="800"]]
126 126  
127 127  In this section:
128 128  
... ... @@ -132,16 +132,13 @@
132 132  * Minimum SOC – minimum cell SOC value for resistance calculation;
133 133  * Maximum SOC – maximum cell SOC value for resistance calculation.
134 134  
135 -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 section 2.3.1). 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).
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).
136 136  
145 +=== Low SOC (signal) ===
137 137  
138 -1.
139 -11.
140 -111. Low SOC (signal)
141 -
142 142  To change the parameters of the generation a signal about low battery level, select the "Control → Low SOC (signal)" section:
143 143  
144 -[[image:1733322624660-513.png]]
149 +[[image:1733322624660-513.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
145 145  
146 146  In this section:
147 147  
... ... @@ -160,16 +160,16 @@
160 160  
161 161  * the battery SOC is greater than the “Tolerant SOC” during the “Delay before clearing the signal” time.
162 162  
168 +(% class="box infomessage" %)
169 +(((
163 163  The "Low SOC signal" is indicative and can be output to a discrete output or a power switch.
171 +)))
164 164  
173 +=== High charging current (signal) ===
165 165  
166 -1.
167 -11.
168 -111. High charging current (signal)
169 -
170 170  To change the parameters of the generation high-current signal, select the "Control → High charging current (signal)" section:
171 171  
172 -[[image:1733322624661-915.png]]
177 +[[image:1733322624661-915.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="107" width="800"]]
173 173  
174 174  In this section:
175 175  
... ... @@ -188,13 +188,13 @@
188 188  
189 189  * the measured current is less than the “Tolerant charging current” value during the “Delay before clearing the signal” time.
190 190  
196 +(% class="box infomessage" %)
197 +(((
191 191  The "High charging current" signal is indicative and can be output to a discrete output or a power switch.
199 +)))
192 192  
201 +=== Charge map ===
193 193  
194 -1.
195 -11.
196 -111. Charge map
197 -
198 198  The BMS Main 3 device calculates the maximum allowable charge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
199 199  
200 200  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.
... ... @@ -201,7 +201,7 @@
201 201  
202 202  To configure parameters for determining the charge current limit, select the "Control → Charge map" section:
203 203  
204 -[[image:1733322637793-171.png]]
209 +[[image:1735064362593-844.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="800"]]
205 205  
206 206  In this section:
207 207  
... ... @@ -208,24 +208,21 @@
208 208  * Enable – a flag to start calculation of the charge current limit;
209 209  * Maximum charge current – a maximum allowable value of the charge current (under normal conditions), A;
210 210  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
211 -* Option 1: Limit charge current by the battery SOC and temperature – a flag to enable correction of maximum allowable charging current Kcs depending on SOC and battery temperature;
216 +* 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;
212 212  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
213 -* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current Kcc depending on contactor temperature;
218 +* Option 2: Limit charge current by the contactor temperature – a flag to enable correction of maximum allowable charging current **Kcc** depending on contactor temperature;
214 214  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
215 -* Option 3: Limit charge current by the maximum cell voltage - a flag to enable correction of maximum allowable charging current Kcv depending on maximum cell voltage;
220 +* 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)
216 216  * Option 3: Cell voltage x Factor – the dependence of the correction factor on maximum cell voltage;
217 -* Option 4: Limit charge current by the cell temperature - a flag to enable correction of maximum allowable charging current Kct depending on maximum cell temperature;
222 +* Option 4: Limit charge current by the cell temperature - a flag to enable correction of maximum allowable charging current **Kct** depending on maximum cell temperature;
218 218  * Option 4: Cell temperature x Factor – the dependence of the correction factor on maximum cell temperature.
219 219  
220 220  Value of the charge current limit at given SOC, temperature, contactors temperature, maximum cell voltage and maximum cell temperature is calculated as follows:
221 221  
222 -Charging current limit = Maximum charging current × Kcs × Kcc × Kcv × Kct
227 +**Charge current limit = Maximum charge current × Kcs × Kcc × Kcv × Kct**
223 223  
229 +=== Discharge map ===
224 224  
225 -1.
226 -11.
227 -111. Discharge map
228 -
229 229  The BMS Main 3 device calculates the maximum allowable discharge current values in respect to SOC, battery temperature, contactor temperature and cell voltage.
230 230  
231 231  Calculated current values are sent to a charger or an intellectual load over the CAN bus.
... ... @@ -232,7 +232,7 @@
232 232  
233 233  To configure parameters for determining the discharge current limit, select the "Control → Discharge map" section:
234 234  
235 -[[image:1733322637795-310.png]]
237 +[[image:1735064399985-526.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="152" width="800"]]
236 236  
237 237  In this section:
238 238  
... ... @@ -239,29 +239,26 @@
239 239  * Enable – a flag to start calculation of the discharge current limit;
240 240  * Maximum discharge current – a maximum allowable value of the discharge current (under normal conditions), A;
241 241  * Rate of change – a rate of change the current limit to a new value (0 is for immediate change), A/s;
242 -* 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 +* 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;
243 243  * Option 1: SOC x Temperature x Factor – the dependence of the correction factor on SOC and battery temperature;
244 -* 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: Limit discharge current by the contactor temperature – a flag to enable correction of maximum allowable discharging current **Kdc** depending on contactor temperature;
245 245  * Option 2: Contactor temperature x Factor – the dependence of the correction factor on SOC and contactor temperature;
246 -* 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;
248 +* 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)
247 247  * Option 3: Cell voltage x Factor – the dependence of the correction factor on minimum cell voltage;
248 -* 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: Limit discharge current by the cell temperature - a flag to enable correction of maximum allowable discharging current **Kdt** depending on maximum cell temperature;
249 249  * Option 4: Cell voltage x Factor – the dependence of the correction factor on minimum cell temperature.
250 250  
251 251  Value of the discharge current limit at given SOC, temperature, contactors temperature, minimum cell voltage and maximum cell temperature is calculated as follows:
252 252  
253 -Discharging current limit = Maximum discharging current × Kds × Kdc × Kdv × Kdt
255 +**Discharge current limit = Maximum discharge current × Kds × Kdc × Kdv × Kdt**
254 254  
257 +=== Charge map (PEAK & CONTINUOUS) ===
255 255  
256 -1.
257 -11.
258 -111. Charge map (PEAK & CONTINUOUS)
259 -
260 260  The BMS Main 3 has an alternative algorithm for the maximum allowed charging current based on peak and continuous battery operating modes.
261 261  
262 262  To configure parameters for determining the charge current limit, select the "Control → Charge map (PEAK & CONTINUOUS)" section:
263 263  
264 -[[image:1733322637796-187.png]]
263 +[[image:1735064434321-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="124" width="800"]]
265 265  
266 266  In this section:
267 267  
... ... @@ -276,22 +276,19 @@
276 276  
277 277  The maximum charging current value equals to the peak or continuous current according to the following diagram:
278 278  
279 -[[image:1733322717451-608.png]]
278 +[[image:1733322717451-608.png||data-xwiki-image-style-alignment="center"]]
280 280  
281 281  I,,peak,, = Maximum PEAK charge current × K,,cp,,
282 282  
283 283  I,,continuous,, = Maximum CONTINUOUS charge current × K,,cc,,
284 284  
284 +=== Discharge map (PEAK & CONTINUOUS) ===
285 285  
286 -1.
287 -11.
288 -111. Discharge map (PEAK & CONTINUOUS)
289 -
290 290  The BMS Main 3 has an alternative algorithm for the maximum allowed discharging current based on peak and continuous battery operating modes.
291 291  
292 292  To configure parameters for determining the discharge current limit, select the "Control → Discharge map (PEAK & CONTINUOUS)" section:
293 293  
294 -[[image:1733322735595-661.png]]
290 +[[image:1735064454708-345.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="124" width="800"]]
295 295  
296 296  In this section:
297 297  
... ... @@ -306,17 +306,126 @@
306 306  
307 307  The maximum discharging current value equals to the peak or continuous current according to following diagram:
308 308  
309 -[[image:1733322753429-968.png]]
305 +[[image:1733322753429-968.png||data-xwiki-image-style-alignment="center"]]
310 310  
311 311  I,,peak,, = Maximum PEAK discharge current × K,,dp,,
312 312  
313 313  I,,continuous,, = Maximum CONTINUOUS discharge current × K,,dc,,
314 314  
311 +=== Main contactor ===
315 315  
316 -1.
317 -11.
318 -111. Charge
313 +The BMS Main 3 device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in case of sealing of the charging or discharging contactors.
319 319  
315 +The Main contactor algorithm supports the following modes:
316 +
317 +* Always on;
318 +* Automatic.
319 +
320 +In “Always on” mode main contactor closes if all the following is true:
321 +
322 +* Other contactors are open;
323 +* There are no errors from the "Errors 1, 2 ..." bitfileds.
324 +
325 +In “Always on” mode main contactor opens if all the following is true:
326 +
327 +* Other contactors are open;
328 +* There is an error from the the "Errors 1, 2 ..." bitfileds.
329 +
330 +In “Automatic” mode, the main contactor closes by internal algorithms at the same time with other contactors.
331 +
332 +In “On demand” mode, the main contactor closes by external the “Close Main contactor” request.
333 +
334 +(% class="box infomessage" %)
335 +(((
336 +**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).
337 +)))
338 +
339 +To change the parameters of the main contactor, select the "Control → Main contactor" section:
340 +
341 +[[image:1735064488658-863.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
342 +
343 +In this section:
344 +
345 +* Enable – a flag to enable the main contactor control;
346 +* Algorithm – main contactor control algorithm:
347 +** Always on – contactor is always closed;
348 +** Automatic – contactor closes by internal charge and discharge algorithms;
349 +** On demand – contactor is closed by an external request;
350 +* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed;
351 +* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, s;
352 +* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset;
353 +* Errors 1, 2 to open the main contactor – bitfields to choose the errors which will open the main contactor.
354 +
355 +=== Charging status ===
356 +
357 +To change the parameters of charging process status, select the "Control → Charging status" section:
358 +
359 +[[image:1735064935499-941.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]In this section:
360 +
361 +* Current to set the "Charging current present" – a current level to generate the "Charging current present" signal, A;
362 +* Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
363 +* 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;
364 +* 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;
365 +* Delay before recharging – a time after which the previously opened the allow charging contactor closes again, minute; to disable the operation by timeout set "Delay before recharging" to 0;
366 +* Errors 1, 2 to clear the "Ready to charge" – bitfields to choose the errors which will clear the "Ready to charge" signal.
367 +
368 +(% class="box infomessage" %)
369 +(((
370 +**Note:** The "Allow charging" signal activates under two independent conditions:
371 +1) the voltage on the cells reaches the “Voltage to reset the “Ready to charge"” level and
372 +2) the "Delay before recharging" time has passed since the opening of the allow charging contactor.
373 +)))
374 +
375 +=== Discharging status ===
376 +
377 +To change the parameters of discharging process status, select the "Control → Discharging status" section:
378 +
379 +[[image:1735064980481-209.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]In this section:
380 +
381 +* Current to set the "Discharging current present" – a current level to generate the "Discharging current present" signal, А;
382 +* Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
383 +* 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;
384 +* 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;
385 +* Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
386 +
387 +=== Precharge ===
388 +
389 +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.
390 +
391 +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.
392 +
393 +TBA
394 +
395 +To change the parameters of precharge contactor, select the "Control → Precharge" section:
396 +
397 +[[image:1735065073836-743.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="160" width="800"]]
398 +
399 +* Precharge current threshold to finish precharging – a minimum current value at which precharging process assumed to be finished, A;
400 +* Check voltages before and after contactors to finish precharging – a flag to check the voltages before and after contactors to ensure that precharge process has finished and it is allowed to close the discharging contactor;
401 +* Minimum voltage difference to finish precharging – minimal voltage difference before and after contactors at which precharge process is meant to be finished, V;
402 +* Number of precharging attempts – maximum number of precharging attempts before setting the "Precharge error";
403 +* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
404 +* Relaxation between attempts – a duration between precharge attempts, millisecond;
405 +* Check the power dissipated in the preacharge resistor - a flag to enable the calculation of power dissipated in precharge resistor;
406 +* Precharge resistor resistance, Ohm;
407 +* Maximum allowable power dissipated in the resistor, W;
408 +* Delay before setting the "Precharge error" when checking power, millisecond;
409 +* Delay before clearing the "Precharge error", second;
410 +* Lock the "Precharge error" – a flag to block the error until the device is restarted.
411 +
412 +“Precharge error” generation conditions if any of the following is true:
413 +
414 +* the precharge current does not decrease during the "Precharge time" after "Number of precharging attempts";
415 +* voltages before and after contactors are not equal during the "Precharge time" after "Number of precharging attempts";
416 +* power dissipated on the precharge resistor is above the maximum value during the “Delay before setting the 'Precharge error' when checking power” time.
417 +
418 +(% class="box warningmessage" %)
419 +(((
420 +Behavior of contactors at “Precharge error” is configured in corresponding contactor settings!
421 +)))
422 +
423 +=== Charge ===
424 +
320 320  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.
321 321  
322 322  The device supports three charge control algorithms:
... ... @@ -325,49 +325,36 @@
325 325  * On charger connected – charging is allowed when there is a signal “Charger connected”;
326 326  * On charge request – charging is allowed when there is a signal “Charge request”.
327 327  
328 -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:
433 +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:
329 329  
330 -* Overvoltage;
331 -* Overcurrent;
332 -* High temperature (CH);
333 -* Low temperature (CH);
334 -* HYG offline (optional);
335 -* Combilift offline (optional);
336 -* Spirit offline (optional);
337 -* Spirit charger error (optional);
338 -* Short circuit (optional);
339 -* High contactor temperature (optional);
340 -* CH contactor cycles error;
341 -* Precharge error (optional);
342 -* Critical error
435 +* Service reset;
436 +* Power down request;
437 +* Inhibit charging,
343 343  
344 -or one of the signals:
345 -
346 -* Service reset
347 -* Power down request
348 -* Inhibit charging
349 -
350 350  both contactors are open (no current flows).
351 351  
352 352  When the algorithm "**On charger connected**" is selected, the control is performed as follows:
353 353  
354 -* 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;
443 +* 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;
355 355  * If the signal “Charger connected” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens;
356 356  * 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);
357 -* If errors in the list above occur the charging contactor and allow charging contactor open.
446 +* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open.
358 358  
359 359  When the "**On charge request**" algorithm selected, the control is performed as follows:
360 360  
361 -* 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;
450 +* 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;
362 362  * If the signal “Charge request” disappears, the allow charging contactor opens and after the delay time T,,off,, the charging contactor opens;
363 363  * 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);
364 -* If errors in the list above occur the charging contactor and allow charging contactor open.
453 +* If errors from the "Errors 1, 2 ..." bitfields occur the charging contactor and allow charging contactor open.
365 365  
366 -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).
455 +(% class="box infomessage" %)
456 +(((
457 +**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).
458 +)))
367 367  
368 368  To change the parameters of the battery charge control algorithm, select the "Control → Charge" section:
369 369  
370 -[[image:1733322798914-813.png]]
462 +[[image:1735063563460-549.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="262" width="800"]]
371 371  
372 372  In this section:
373 373  
... ... @@ -376,24 +376,17 @@
376 376  ** Always on – charging is always allowed;
377 377  ** On charger connected – charging is allowed when there is a signal “Charger connected”;
378 378  ** On charge request – charging is allowed when there is a signal “Charge request”;
379 -* Current corresponding to charging – a current level to generate the "Charging current present" signal, A;
380 -* Current corresponding to no charging – a current level to clear the "Charging current present" signal, A;
471 +* Allow charging only when the "Ready to charge" signal is set – charging contactor will open if "Ready to charge" signal is cleared;
381 381  * Delay before starting charging – a time delay T,,on,, before closing the charging contactor and the allow charging contactor, millisecond;
382 382  * Delay before stopping charging – a time delay T,,off,, before opening the charging contactor, millisecond;
474 +* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the charge contactor (see [[Precharge>>path:#HPrecharge]]);
475 +* Errors 1, 2 to open the charging contactor – bitfields to choose the errors which will open the charging contactor;
383 383  * Use custom delays before stopping charging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
384 -* Custom delay: <error> – specific error delay, millisecond;
477 +* Custom delay: <error> – delay for specific error, millisecond;
385 385  * 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”;
386 -* Control the precharging contactor – a flag that allows control of the precharging contactor;
387 -* 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;
388 -* 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;
389 -* 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.
390 390  
391 -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.
480 +=== Discharge ===
392 392  
393 -1.
394 -11.
395 -111. Discharge
396 -
397 397  The device controls the discharging contactor to connect battery to the load.
398 398  
399 399  The device supports three algorithms to control battery discharging:
... ... @@ -402,26 +402,8 @@
402 402  * On charger disconnected – load is connected when there is no signal “Charger connected”;
403 403  * On discharge request – load is connected when there is signal “Discharge request”.
404 404  
405 -When the algorithm "**Always on**" is selected, the discharging contactor is always closed. If at least one of the errors appears:
490 +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:
406 406  
407 -* Undervoltage;
408 -* Overvoltage (optional);
409 -* Overcurrent;
410 -* High temperature (DCH);
411 -* Low temperature (DCH) (optional);
412 -* HYG offline (optional);
413 -* Combilift offline (optional);
414 -* Spirit offline (optional);
415 -* Spirit charger error (optional);
416 -* Short circuit (optional);
417 -* High contactor temperature (optional);
418 -* Unallowable charging;
419 -* DCH contactor cycles error;
420 -* Precharge error (optional);
421 -* Critical error
422 -
423 -or one of the signals:
424 -
425 425  * Service reset
426 426  * Power down request
427 427  * Inhibit discharging
... ... @@ -430,24 +430,23 @@
430 430  
431 431  If the algorithm "**On charger disconnected**" is selected, the control is performed as follows:
432 432  
433 -* if there is no signal “Charger connected”, the charging contactor is open and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
434 -* If the signal “Charger connected” appears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
500 +* 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;
501 +* 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.
435 435  
436 436  When the "**On discharge request**" algorithm selected, the control is performed as follows:
437 437  
438 -* if there is signal “Discharge request”, the charging contactor is open and there are no errors (see the list above), then through the delay time T,,on,, the discharging contactor closes;
439 -* If the signal “Discharge request” disappears or errors occur (see the list above), then after the delay time T,,off,, the discharging contactor opens.
505 +* 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;
506 +* 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.
440 440  
441 -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).
508 +(% class="box infomessage" %)
509 +(((
510 +**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).
511 +)))
442 442  
443 -The device supports controlling the precharging contactor. The duration of switching on the precharging contactor before closing the discharging (load) contactor is adjusted.
444 -
445 445  To change the parameters of the battery discharge control algorithm, select the "Control → Discharge" section:
446 446  
447 -[[image:file:///C:/Users/INASIB~~1/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png||alt="A screenshot of a computer
515 +[[image:1735064038329-836.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="273" width="800"]]
448 448  
449 -Description automatically generated"]]
450 -
451 451  In this section:
452 452  
453 453  * Enable – a flag to activate the discharge control;
... ... @@ -455,39 +455,54 @@
455 455  ** Always on – load is always connected;
456 456  ** On charger disconnected – load is connected when there is no signal “Charger connected”;
457 457  ** On discharge request – load is connected when there is signal “Discharge request”;
458 -* Current corresponding to discharging – a current level to generate the "Discharging current present" signal, А;
459 -* Current indicating no discharging – a current level to clear the "Discharging current present" signal, А;
524 +* Allow charging only when the "Ready to discharge" signal is set – discharging contactor will open if "Ready to discharge" signal is cleared;
460 460  * Delay before starting discharging – a time delay T,,on,, before closing the discharging contactor, millisecond;
461 461  * Delay before stopping discharging – a time delay T,,off,, before opening the discharging contactor, millisecond;
527 +* Control the precharging contactor – a flag that allows control of the precharging contactor while closing the discharge contactor (see [[Precharge>>doc:||anchor="HPrecharge"]]);
528 +* Errors 1, 2 to open the discharging contactor – bitfields to choose the errors which will open the discharging contactor;
462 462  * Use custom delays before stopping discharging (on errors) – a flag to enable manual settings of time delays T,,off,, for specific errors;
463 463  * Custom delay: <error> – specific error delay, millisecond;
464 464  * 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”.
465 -* Precharge time – a duration of closing the precharge contactor before closing the discharging contactor, millisecond;
466 -* Check voltages before and after contactors to finish precharging – a flag to check the voltages before and after contactors to ensure that precharge process has finished and it is allowed to close the discharging contactor;
467 -* Minimum voltage difference to finish precharging – minimal voltage difference before and after contactors at which precharge process is meant to be finished, V;
468 -* 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;
469 -* 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;
470 470  
533 +=== Charge/Discharge ===
471 471  
472 -1.
473 -11.
474 -111. Charge/Discharge
535 +The BMS Main 3 device can control the charge/discharge contactor, which combines algorithms of charging and discharging contactor.
475 475  
476 -The BMS Main 3 device can control the charging/discharging contactor, which combines algorithms of charging and discharging contactor. It behaves as a charging contactor when “Charge request” or “Charger connected” is set, otherwise – as a discharging contactor.
537 +Charge/Discharge contactor has three algorithms of operation:
477 477  
539 +* 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;
540 +* Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
541 +* 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.
542 +
543 +TBA
544 +
545 +(% class="box infomessage" %)
546 +(((
547 +**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).
548 +)))
549 +
478 478  The charging/discharging contactor control is configured in the “Control – Charge/Discharge” section:
479 479  
480 -[[image:1733322827919-875.png]]
552 +[[image:1735122153011-166.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="162" width="800"]]
481 481  
482 482  In this section:
483 483  
484 484  * Enable – a flag to enable the charge/discharge controller.
557 +* Algorithm:
558 +** 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;
559 +** Independent (Always) - Charge/Discharge contactor is always closed if there is no errors;
560 +** Independent (on Charge request or Discharge request);
561 +* Delay before starting charging or discharging, millisecond;
562 +* Delay before stopping charging or discharging, millisecond;
563 +* Control the precharging contactor – a flag that enables control of precharging contactor while closing the charge/discharge contactor;
564 +* Emulate the "Charging" and "Discharging" signals – a flag to enable generation of "Charging" and "Discharging" signals when closing charge/discharge contactor;
565 +* 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;
566 +* 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;
567 +* 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;
568 +* 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”.
485 485  
570 +=== Discharge (AUX) ===
486 486  
487 -1.
488 -11.
489 -111. Discharge (AUX)
490 -
491 491  The BMS Main 3 device can control the power supply of external equipment using the auxiliary (AUX) discharging contactor. An example of external equipment can be an inverter that converts DC to AC to power a service laptop and other devices.
492 492  
493 493  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.
... ... @@ -496,11 +496,11 @@
496 496  
497 497  * the battery has low SOC;
498 498  * the battery voltage is out of range;
499 -* the battery system errors are detected.
580 +* the errors are detected (configured in the "Errors 1, 2 ..." bitfields).
500 500  
501 501  To change the parameters of the powering of external equipment, select the "Control → Discharge (AUX)" section:
502 502  
503 -[[image:1733322827920-878.png]]
584 +[[image:1735066190419-838.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
504 504  
505 505  In this section:
506 506  
... ... @@ -508,72 +508,16 @@
508 508  * Switch off the discharging (AUX) contactor if the SOC is too low;
509 509  * Minimum SOC – a minimum SOC value, when reached, the auxiliary (AUX) discharging contactor opens, %;
510 510  * Tolerant SOC – a permissive SOC value, upon reaching which the auxiliary (AUX) discharging contactor re-closes, %;
592 +* Switch off the discharging (AUX) contactor if the cell voltage is out of the range;
593 +* Minimum cell voltage, V;
594 +* Maximum cell voltage, V;
511 511  * Switch off the discharging (AUX) contactor if the battery voltage is out of the range;
512 -* Minimum voltage – minimum battery voltage, V;
513 -* Maximum voltage – maximum battery voltage, V;
514 -* 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.
596 +* Minimum battery voltage, V;
597 +* Maximum battery voltage, V;
598 +* Errors 1, 2 to open the auxiliary discharging contactor bitfields to choose the errors which will open the auxiliary discharging contactor.
515 515  
516 -1.
517 -11.
518 -111. Main contactor
600 +=== Cell balancing ===
519 519  
520 -The BMS Main 3 device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in case of sealing of the charging or discharging contactors.
521 -
522 -The Main contactor algorithm supports the following modes:
523 -
524 -* Always on;
525 -* Automatic;
526 -* On demand.
527 -
528 -In “Always on” mode main contactor closes if all the following is true:
529 -
530 -* Charging contactor is open;
531 -* Discharging contactor is open;
532 -* There are no errors from the list below:
533 -** Overcurrent;
534 -** Undervoltage;
535 -** Overvoltage;
536 -** High temperature (CH);
537 -** High temperature (DCH);
538 -** Unallowable charging;
539 -** Critical error.
540 -
541 -In “Always on” mode main contactor opens if all the following is true:
542 -
543 -* Charging contactor is open;
544 -* Discharging contactor is open;
545 -* There is an error from the list below:
546 -** Overcurrent;
547 -** Undervoltage;
548 -** Overvoltage;
549 -** High temperature (CH);
550 -** High temperature (DCH);
551 -** Unallowable charging;
552 -** Critical error.
553 -
554 -In “Automatic” mode, the main contactor closes by internal charging and discharging algorithms at the same time with Precharging, Charging and Discharging contactors.
555 -
556 -In “On demand” mode, the main contactor closes by external the “Close Main contactor” request.
557 -
558 -To change the parameters of the main contactor, select the "Control → Main contactor" section:
559 -
560 -[[image:1733322872744-536.png]]
561 -
562 -In this section:
563 -
564 -* Enable – a flag to enable the main contactor control;
565 -* Algorithm – main contactor control algorithm:
566 -** Always on – contactor is always closed;
567 -** Automatic – contactor closes by internal charge and discharge algorithms;
568 -** On demand – contactor is closed by an external request;
569 -* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed;
570 -* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, s;
571 -* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset.
572 -
573 -1.
574 -11.
575 -111. Cell balancing
576 -
577 577  Balancing makes the voltage of all cells equal to the minimum cell voltage.
578 578  
579 579  The following balancing rules are supported:
... ... @@ -585,20 +585,25 @@
585 585  A balancing resistor is connected to the cell if the following conditions are simultaneously met:
586 586  
587 587  * the voltage on the cell is higher than the balancing start voltage;
588 -* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold.
613 +* the difference between the voltage on the cell and the minimum voltage among the battery cells is greater than the balancing start threshold;
589 589  
590 590  A balancing resistor is disconnected from the cell if any of the following conditions are met:
591 591  
592 -* the voltage on the cell is less than the balancing start voltage;
617 +* the voltage on the cell is less than the balancing stop voltage;
593 593  * the difference between the voltage on the cell and the minimum voltage among the battery cells is less than the balancing stop threshold.
594 594  
620 +(% class="box infomessage" %)
621 +(((
595 595  If the “High logic temperature” occurs, then the balancing of the cells connected to the overheated BMS Logic device will not be performed.
623 +)))
596 596  
597 597  The BMS Main 3 can enable the cell balancing by the external “Balancing request” signal. Balancing process will be started to cells which the voltage is higher than the balancing start voltage and the difference between the cell voltage and the minimum voltage among all the cells is greater than the balancing stop threshold.
598 598  
627 +BMS Main 3 can force a cell balancing, if its voltage is higher than estimated value.
628 +
599 599  To change the cell balancing parameters, select the "Control → Cell balancing" section:
600 600  
601 -[[image:1733322883460-118.png]]
631 +[[image:1735065702806-422.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
602 602  
603 603  In this section:
604 604  
... ... @@ -607,19 +607,18 @@
607 607  ** Balance on charge – balancing is performed while and after the charging (in the “Charge ON” and “Charge OFF” states);
608 608  ** 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);
609 609  ** Balance always – balancing is always performed regardless the battery state;
610 -
611 -[[image:1733322883462-975.png]]
612 -
640 +* Balancing condition:
641 +** Automatic – balancing will be performed automatically if needed conditions are met;
642 +** 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;
613 613  * Minimum cell voltage to start balancing, V;
614 614  * Voltage deviation to start balancing;
615 615  * Voltage deviation to stop balancing;
646 +* Voltage for forced balancing – if cell voltage is above this value, it will start discharging through balancing resistor;
647 +* Maximum allowable temperature of BMS Logic devices, ºC;
616 616  * Command to discharge all cells – a flag to force the balancing of all cells.
617 617  
650 +=== Series balancing ===
618 618  
619 -1.
620 -11.
621 -111. Series balancing
622 -
623 623  The BMS Main 3 device supports work with two independent (galvanically unrelated) cell series. To monitor the status of two series, two current sensors are used. A series of cells must be equivalent: they must have the same number of cells and the same capacity.
624 624  
625 625  Since the series of cells can operate at different loads, they must be balanced. For this, the BMS Main 3 provides two signals to power switches: “Balancing series 1” and “Balancing series 2”, as well as a combined algorithm that considers both the voltage of each series and the charge that these series gave load. The “Balancing series 1” and “Balancing series 2” signals are used to connect high-power balancing resistors in parallel with cell series 1 and 2.
... ... @@ -633,7 +633,7 @@
633 633  
634 634  To change the series balancing parameters, select the "Control → Series balancing" section:
635 635  
636 -[[image:1733322892811-410.png]]
665 +[[image:1733322892811-410.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="126" width="800"]]
637 637  
638 638  In this section:
639 639  
... ... @@ -643,13 +643,10 @@
643 643  * Balancing threshold, V;
644 644  * Coulomb threshold – the difference of the charges Qthr, given by a series of cells, above which balancing to be started, Ah;
645 645  * Period – a period to reset of charge counters for each series (to avoid accumulation of error), second;
646 -* Do not sum series voltages – a flag to disable the summing of series voltages.
675 +* Do not sum series voltages – a flag to disable the summing of series voltages.3
647 647  
677 +=== Power down ===
648 648  
649 -1.
650 -11.
651 -111. Power down
652 -
653 653  The BMS Main 3 device can shut down itself if the battery voltage is low or the battery is idle for a long time.
654 654  
655 655  Shutting down the battery system is performed according to the following conditions:
... ... @@ -661,7 +661,7 @@
661 661  
662 662  To change the parameters of the power down control, select the "Control → Power down" section:
663 663  
664 -[[image:1733322892813-562.png]]
690 +[[image:1733322892813-562.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="103" width="800"]]
665 665  
666 666  In this section:
667 667  
... ... @@ -671,13 +671,11 @@
671 671  * Power down if KEYRUN and CHARGE_ON are cleared – a flag to power down the device if KEYRUN and CHARGE_ON signals are cleared;
672 672  * 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.
673 673  
674 -1.
675 -11.
676 -111. Heater
700 +=== Heater ===
677 677  
678 678  To change the parameters of the heater control algorithm, select the "Control → Heater" section:
679 679  
680 -[[image:1733322901923-144.png]]
704 +[[image:1733322901923-144.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="108" width="800"]]
681 681  
682 682  In this section:
683 683  
... ... @@ -698,16 +698,16 @@
698 698  
699 699  * 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.
700 700  
701 -If there is the "Heater" signal, the heater contactor closes and/or a signal is output to the corresponding digital output.
725 +(% class="box infomessage" %)
726 +(((
727 +If there is the "Heater" signal, the heater contactor closes and/or a signal is set to the corresponding digital output.
728 +)))
702 702  
730 +=== Cooler ===
703 703  
704 -1.
705 -11.
706 -111. Cooler
707 -
708 708  To change the parameters of the cooler control algorithm, select the "Control → Cooler" section:
709 709  
710 -[[image:1733322901924-962.png]]
734 +[[image:1733322901924-962.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="107" width="800"]]
711 711  
712 712  In this section:
713 713  
... ... @@ -728,18 +728,18 @@
728 728  
729 729  * 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.
730 730  
731 -If there is the "Cooler" signal, the cooler contactor closes and/or a signal is output to the corresponding digital output.
755 +(% class="box infomessage" %)
756 +(((
757 +If there is the "Cooler" signal, the cooler contactor closes and/or a signal is set to the corresponding digital output.
758 +)))
732 732  
760 +=== High voltage ===
733 733  
734 -1.
735 -11.
736 -111. High voltage
737 -
738 738  The BMS Main 3 device has an ability to measure high voltages before and after contactors.
739 739  
740 740  To change the parameters of high voltage fault, select the "Control → High voltage" section:
741 741  
742 -[[image:1733322914683-203.png]]
766 +[[image:1733322914683-203.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="87" width="800"]]
743 743  
744 744  In this section:
745 745  
... ... @@ -749,13 +749,13 @@
749 749  
750 750  The BMS Main 3 implements a self-diagnostics of high-voltage measurement lines. If measurement line breaks or high-voltage polarity is wrong, “High voltage fault” is generated.
751 751  
752 -**If there is the “High voltage fault”, the “Critical error” is generated and all contactors open.**
776 +(% class="box warningmessage" %)
777 +(((
778 +If there is the “High voltage fault”, **the “Critical error” is generated.**
779 +)))
753 753  
781 +=== Cell analysis ===
754 754  
755 -1.
756 -11.
757 -111. Cell analysis
758 -
759 759  The battery discharge characteristic – the dependence Uocv = Uocv(DOD) – is used to determine the tabular dependence Uocv = Uocv(SOC, t°C), which is necessary for calculating the battery charge level.
760 760  
761 761  The BMS Main 3 device can automatically determine the battery discharge characteristic.
... ... @@ -767,7 +767,7 @@
767 767  
768 768  To configure parameters for determining the discharge characteristic of the battery, select the "Control → Cell analysis" section:
769 769  
770 -[[image:1733322914685-558.png]]
794 +[[image:1733322914685-558.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="107" width="800"]]
771 771  
772 772  In this section:
773 773  
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