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Changes for page 3.4 Protections

Last modified by Admin on 2025/06/11 15:57
From version 17.1
edited by Admin
on 2025/04/04 11:59
Change comment: There is no comment for this version
To version 8.6
edited by Admin
on 2025/02/28 15:24
Change comment: There is no comment for this version

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... ... @@ -168,11 +168,11 @@
168 168  
169 169  Error generation conditions:
170 170  
171 -* more than “Number of offline modules to set the error” battery modules do not respond to the commands of the BMS Main X device within “Delay before setting the error” time.
171 +* more than “Number of offline modules to set the error” battery modules do not respond to the commands of the BMS Main 3X device within “Delay before setting the error” time.
172 172  
173 173  Conditions for removing the error:
174 174  
175 -* less than “Number of offline modules to set the error” battery modules do not respond to the commands of the BMS Main X device within “Delay before clearing the error” time.
175 +* less than “Number of offline modules to set the error” battery modules do not respond to the commands of the BMS Main 3X device within “Delay before clearing the error” time.
176 176  
177 177  (% class="box warningmessage" %)
178 178  (((
... ... @@ -209,11 +209,6 @@
209 209  * battery module is in the largest group of balanced modules during the "Delay before clearing the error" time;
210 210  * module is ready to charge or discharge.
211 211  
212 -(% class="box infomessage" %)
213 -(((
214 -If there is the “Voltage unbalance (CH)” or "Voltage unbalance (DCH)" error, **corresponding battery module do not close its contactors while joining  to charge of discharge**.
215 -)))
216 -
217 217  === Current unbalance (in “Balancing” state) ===
218 218  
219 219  When battery modules are connected in parallel, the most charged modules transfer charge to the least charged modules. The process of charge transfer is accompanied by the flow of balancing currents. The BMS Main X device detects modules with high balancing currents and generates “Current unbalance (CH)” (charge circuit) and “Current unbalance (DCH)” (discharge circuit) errors for them.
... ... @@ -231,10 +231,8 @@
231 231  * Check all the time (not only in the ‘Balancing’ state) – a flag to enable voltage check not only in “Balancing” state;
232 232  * Lock – a flag to block the error until the device is restarted.
233 233  
234 -As a result of the operation of the current unbalance protection the errors “Current unbalance (CH)” and “Current unbalance (DCH)” are generated.
229 +As a result of the operation of the current unbalance protection the errors “Current unbalance (CH)” and “Current unbalance (DCH)” are generated. Conditions for generating the error:
235 235  
236 -Conditions for generating the error:
237 -
238 238  * the current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time.
239 239  
240 240  Conditions for clearing the error:
... ... @@ -262,10 +262,8 @@
262 262  * Delay before clearing the error;
263 263  * Lock – a flag to block the error until the device is restarted.
264 264  
265 -As a result of the operation of the protection the “Charging current unbalance” are generated.
258 +As a result of the operation of the protection the “Charging current unbalance” are generated. Conditions for generating the errors:
266 266  
267 -Conditions for generating the errors:
268 -
269 269  * battery module is not included in the largest group of modules whose charge currents differ from each other by no more than "Delta current" during the "Delay before setting the error" time.
270 270  
271 271  Conditions for clearing the error:
... ... @@ -293,10 +293,8 @@
293 293  * Delay before clearing the error;
294 294  * Lock – a flag to block the error until the device is restarted.
295 295  
296 -As a result of the operation of the protection the “Discharging current unbalance” are generated.
287 +As a result of the operation of the protection the “Discharging current unbalance” are generated. Conditions for generating the errors:
297 297  
298 -Conditions for generating the errors:
299 -
300 300  * battery module is not included in the largest group of modules whose discharge currents differ from each other by no more than "Delta current" during the "Delay before setting the error" time.
301 301  
302 302  Conditions for clearing the error:
... ... @@ -308,34 +308,8 @@
308 308  If there is the “Discharging current unbalance” error, **corresponding battery module opens its discharging contactor**.
309 309  )))
310 310  
311 -=== High contactor temperature ===
300 +=== High contactor tempe ===
312 312  
313 -The BMS Main X device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X5 connector is used.
314 -
315 -To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
316 -
317 -[[image:1740756362809-292.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
318 -
319 -In this section:
320 -
321 -* Enable – a flag to enable the protection;
322 -* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
323 -* Maximum contactor temperature, °C;
324 -* Tolerant contactor temperature, °C;
325 -* Delay before setting the error, second;
326 -* Delay before clearing the error, second;
327 -* Lock – a flag to block the error until the device is restarted.
328 -
329 -If there is a contactor overheat, the "High contactor temperature" error is generated.
330 -
331 -Error generation conditions:
332 -
333 -* the contactor temperature is greater than the “Maximum contactor temperature” value during the “Delay before setting the error” time.
334 -
335 -Conditions for removing the error:
336 -
337 -* the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
338 -
339 339  === WDT reset ===
340 340  
341 341  If the BMS firmware hangs, the watchdog timer resets the device. The BMS can detect that the device was reset and generates the “WDT reset” error.
... ... @@ -342,31 +342,12 @@
342 342  
343 343  To change the parameters of the watchdog protection, select the "Protections → WDT reset" section:
344 344  
345 -[[image:Battery management systems.BMS Main 3X.3\. Configuration.3\.4 Protections.WebHome@1734090244845-157.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="93" width="800"]]
346 -
347 -In this section:
348 -
349 -* Enable – a flag to enable the protection;
350 -* Delay before clearing the error, second;
351 -* Lock – a flag to block the error until the device is restarted.
352 -
353 -Conditions for removing the error:
354 -
355 -* the “Delay before clearing the error” time has passed from the device startup.
356 -
357 -(% class="box warningmessage" %)
358 -(((
359 -If there is the "WDT reset" error, **“Critical error” is generated.**
360 -)))
361 -
362 362  === Critical error ===
363 363  
364 -Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
310 +Parameters for generating the critical error are configured in the "Protections - Critical error" section:
365 365  
366 -To change the critical error parameters, select the "Protections → Critical error" section:
312 +[[image:1734356802719-477.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="69" width="600"]]
367 367  
368 -[[image:1740756532131-419.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="118" width="800"]]
369 -
370 370  In this section:
371 371  
372 372  * Enable – a flag to enable the protection;
... ... @@ -374,6 +374,18 @@
374 374  * Delay before clearing the error;
375 375  * Lock – a flag to block the error until the device is restarted.
376 376  
377 -The "Critical error" signal is generated if at least one of the critical errors (see [[Errors>>doc:Battery management systems.Additional information.2\. Strings controllers\: signals and errors.WebHome||anchor="HErrors"]]) is generated during the “Delay before setting the error” time.
321 +The critical error flag is generated if at least one of the following errors persists during the "Delay before setting the error" time:
378 378  
379 -The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
323 +* «Battery cover»;
324 +* «Insulation fault»;
325 +* «CH contactor feedback error»;
326 +* «DCH contactor feedback error»;
327 +* «CH/DCH contactor feedback error»;
328 +* «Module offline».
329 +
330 +The critical error flag is cleared if there are no errors from the list above during the "Delay before clearing the error" time.
331 +
332 +(% class="box warningmessage" %)
333 +(((
334 +**When the critical error flag is present, all battery contactors open.**
335 +)))
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