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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:23
From version 1.3
edited by Admin
on 2024/12/09 16:56
Change comment: Update document after refactoring.
To version 1.8
edited by Admin
on 2025/02/24 14:11
Change comment: There is no comment for this version

Summary

Details

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Parent
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1 -drafts.BMS Mini S.3\. Configuration.WebHome
1 +Battery management systems.BMS Mini S.3\. Configuration.WebHome
Content
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6 6  
7 7  The BMS Mini device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
8 8  
9 +(% class="box errormessage" %)
10 +(((
11 +**Attention!**
12 +Behavior of contactors at different errors is configured in **corresponding contactor settings**!
13 +)))
14 +
9 9  === Overcurrent ===
10 10  
11 11  The BMS Mini device performs the overcurrent protection depending on current sensor values.
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37 37  * the current is positive (charging) or zero, and its modulo value is less than the “Tolerant charging current” value for the “Delay before clearing the error” time;
38 38  * the current is negative (discharging), and its modulo value is less than the “Tolerant discharging current” value for the “Delay before clearing the error” time.
39 39  
40 -(% class="box infomessage" %)
41 -(((
42 -If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43 -)))
44 -
45 45  === Undervoltage ===
46 46  
47 47  The BMS Mini device implements battery protection from too low voltage on the cells.
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69 69  
70 70  * the minimum voltage among all cells of the battery is greater than the “Tolerant cell voltage” value for the “Delay before clearing the error” time.
71 71  
72 -(% class="box infomessage" %)
73 -(((
74 -If there is the "Undervoltage" error, the **discharging **contactor opens.
75 -)))
76 -
77 77  === Overvoltage ===
78 78  
79 79  The BMS Mini device implements battery protection from too high voltage on the cells.
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102 102  
103 103  * the maximum voltage among all cells of the battery is less than the “Tolerant cell voltage” value for the “Delay before clearing the error” time.
104 104  
105 -(% class="box infomessage" %)
106 -(((
107 -If there is the "Overvoltage" error, the **charging **contactor and **discharging **contactor open (if the “Switch off the discharging contactor on error” flag is set).
108 -)))
109 -
110 110  === Low temperature ===
111 111  
112 112  The BMS Mini device implements battery protection from too low temperature.
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136 136  
137 137  * the minimum temperature among all cells of the battery is greater than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
138 138  
139 -(% class="box infomessage" %)
140 -(((
141 -If there is the "Low temperature (CH)" error, the **charging **contactor opens. If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
142 -)))
143 -
144 144  === High temperature ===
145 145  
146 146  The BMS Mini device implements battery protection from too high temperature.
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170 170  
171 171  * the maximum temperature among all cells of the battery is less than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
172 172  
173 -(% class="box infomessage" %)
174 -(((
175 -If there is the "High temperature (CH)" error, the **charging **contactor opens. If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
176 -)))
177 -
178 178  === Battery cover ===
179 179  
180 180  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
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200 200  
201 201  (% class="box warningmessage" %)
202 202  (((
203 -If there is the "Battery cover error", the **“Critical error” **is generated **and all contactors open.**
184 +If there is the "Battery cover error", the **“Critical error” **is generated.
204 204  )))
205 205  
206 206  === Cell monitor offline ===
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228 228  
229 229  (% class="box warningmessage" %)
230 230  (((
231 -If there is the " Cell monitor offline error", the **“Critical error” **is generated and** all contactors open.**
212 +If there is the " Cell monitor offline error", the **“Critical error” **is generated.
232 232  )))
233 233  
234 234  === Cell count ===
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257 257  
258 258  (% class="box warningmessage" %)
259 259  (((
260 -If there is the "Cell count error", the **“Critical error” **is generated and **all contactors open.**
241 +If there is the "Cell count error", the **“Critical error” **is generated.
261 261  )))
262 262  
263 263  === Short circuit ===
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289 289  
290 290  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
291 291  
292 -(% class="box infomessage" %)
293 -(((
294 -If there is the "Short circuit" error, the **charging **contactor opens (the “Switch off the charging contactor on error” flag is set) and the **discharging **contactor opens (the “Switch off the discharging contactor on error flag” is set).
295 -)))
296 -
297 297  === High contactor temperature ===
298 298  
299 299  The BMS Mini device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X6 connector is used.
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357 357  
358 358  (% class="box warningmessage" %)
359 359  (((
360 -If there is the “Current sensor error”, the **“Critical error” **is generated and** all contactors open.**
336 +If there is the “Current sensor error”, the **“Critical error” **is generated.
361 361  )))
362 362  
363 363  === Charge contactor cycles ===
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388 388  
389 389  * the “Delay before clearing the error” time has passed since the error was generated.
390 390  
391 -(% class="box infomessage" %)
392 -(((
393 -If there is the "CH contactor cycles error" error, the **charging** contactor opens.
394 -)))
395 -
396 396  === Discharge contactor cycles protection ===
397 397  
398 398  The BMS Mini device protects the discharging contactor against frequent switching.
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421 421  
422 422  * the “Delay before clearing the error” time has passed since the error was generated.
423 423  
424 -(% class="box infomessage" %)
425 -(((
426 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
427 -)))
428 -
429 429  === Temperature sensors ===
430 430  
431 431  The BMS Mini device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
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445 445  
446 446  (% class="box warningmessage" %)
447 447  (((
448 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error” **is generated and **all contactors open.**
414 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error” **is generated.
449 449  )))
450 450  
451 451  === WDT reset ===
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468 468  
469 469  (% class="box warningmessage" %)
470 470  (((
471 -If there is the "WDT reset" error, the **“Critical error” **is generated and **all contactors open.**
437 +If there is the "WDT reset" error, the **“Critical error” **is generated.
472 472  )))
473 473  
474 474  === Unallowable charging ===
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496 496  
497 497  * the battery current is zero during the “Delay before clearing the error” time.
498 498  
499 -(% class="box infomessage" %)
500 -(((
501 -If there is the "Unallowable charging" error, the **discharging **contactor opens.
502 -)))
503 -
504 504  === Stuck contactor ===
505 505  
506 506  The BMS Mini device protects contactors against sticking.
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516 516  * Delay before clearing the error, second;
517 517  * Lock – a flag to block the error until the device is restarted.
518 518  
519 -If there is a stuck contactor, the “Stuck contactor” error is generated Error generation conditions:
480 +If there is a stuck contactor, the “Stuck contactor” error is generated. Error generation conditions:
520 520  
521 521  * charging and discharging contactors are open, but the “Charging current present” or “Discharging current present” signal is set.
522 522