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Changes for page 3.4 Protections

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... ... @@ -154,61 +154,68 @@
154 154  
155 155  Protection against loss of communication with battery modules is configured in the "Protections - Module offline" section:
156 156  
157 -[[image:1734356793441-881.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="75" width="600"]]
157 +[[image:1740754588971-137.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="118" width="800"]]
158 158  
159 159  In this section:
160 160  
161 -* Enable – a flag to enable the protection;
162 -* Delay before setting the error;
163 -* Delay before clearing the error;
164 -* Lock – a flag to block the error until the device is restarted.
161 +* Enable – a flag to enable the protection;
162 +* Number of offline modules to set the error;
163 +* Delay before setting the error, second;
164 +* Delay before clearing the error, second;
165 +* Lock – lock the error until the device is reset.
165 165  
166 -As a result of the protection against loss of communication with the battery module, the “Module offline” error is generated. Conditions for generating the error:
167 +As a result of the protection from loss of communication with battery modules, the "Module offline" error is generated.
167 167  
168 -* at least one of the battery modules does not respond to commands within the "Delay before setting the error" time.
169 +Error generation conditions:
169 169  
170 -Conditions for clearing the error:
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.
171 171  
172 -* all battery modules respond to commands within the "Delay before clearing the error" time.
173 +Conditions for removing the error:
173 173  
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 +
174 174  (% class="box warningmessage" %)
175 175  (((
176 -If there is the "Module offline" error, **the critical error flag is generated and all battery contactors open.**
179 +If there is the "Module offline" error, **“Critical error” is generated.**
177 177  )))
178 178  
179 -=== Voltage unbalance ===
182 +=== Voltage unbalance (in any state) ===
180 180  
181 181  Before closing the contactors for charging and discharging battery modules, the BMS Main X device detects those modules whose voltage is significantly different from the rest. For unbalanced modules, errors "Voltage unbalance (CH)" (charge circuit) and "Voltage unbalance (DCH)" (discharge circuit) are generated.
182 182  
183 -Protection against voltage unbalance of battery modules is configured in the section "Protections - Voltage unbalance":
186 +Protection against voltage unbalance of battery modules is configured in the section "Protections - Voltage unbalance (in any state)":
184 184  
185 -[[image:1734356793449-249.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="75" width="600"]]
188 +[[image:1740754732291-420.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="127" width="800"]]
186 186  
187 187  In this section:
188 188  
189 189  * Enable – a flag to enable the protection;
190 190  * Delta voltage – maximum allowable voltage difference of battery modules, V;
194 +* Use the open circuit voltage to detect the error – a flag to enable U,,ocv,, correction;
191 191  * Delay before setting the error;
192 192  * Delay before clearing the error;
197 +* Set the 'Voltage unbalance' error for the modules that are not ready to charge/discharge;
193 193  * Lock – a flag to block the error until the device is restarted.
194 194  
195 -As a result of the operation of the voltage unbalance protection the errors “Voltage unbalance (CH)” and “Voltage unbalance (DCH)” are generated. Conditions for generating the error:
200 +As a result of the operation of the voltage unbalance protection the errors “Voltage unbalance (CH)” and “Voltage unbalance (DCH)” are generated.
196 196  
197 -* battery module is not included in the largest group of modules whose voltages differ from each other by no more than "Delta voltage" during the "Delay before setting the error" time.
202 +Conditions for generating the error:
198 198  
204 +* battery module is not included in the largest group of modules whose voltages differ from each other by no more than "Delta voltage" during the "Delay before setting the error" time;
205 +* module is not ready to charge or discharge;
206 +
199 199  Conditions for clearing the error:
200 200  
201 -* battery module is in the largest group of balanced modules during the "Delay before clearing the error" time.
209 +* battery module is in the largest group of balanced modules during the "Delay before clearing the error" time;
210 +* module is ready to charge or discharge.
202 202  
203 -If there is the error "Voltage unbalance (CH)" ("Voltage unbalance (DCH)"), the charging (discharging) contactor of the battery module opens.
212 +=== Current unbalance (in “Balancing” state) ===
204 204  
205 -=== Current unbalance ===
206 -
207 207  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.
208 208  
209 209  Protection against current unbalance of battery modules is configured in the section "Protections - Current unbalance":
210 210  
211 -[[image:1734356793451-440.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="77" width="600"]]
218 +[[image:Battery management systems.BMS Main 3X.3\. Configuration.3\.4 Protections.WebHome@1734090244843-403.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="116" width="800"]]
212 212  
213 213  In this section:
214 214  
... ... @@ -216,19 +216,25 @@
216 216  * Maximum current – a maximum allowable self-balancing current of battery modules, A;
217 217  * Delay before setting the error;
218 218  * Delay before clearing the error;
226 +* Check all the time (not only in the ‘Balancing’ state) – a flag to enable voltage check not only in “Balancing” state;
219 219  * Lock – a flag to block the error until the device is restarted.
220 220  
221 -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:
229 +As a result of the operation of the current unbalance protection the errors “Current unbalance (CH)” and “Current unbalance (DCH)” are generated.
222 222  
223 -* current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time.
231 +Conditions for generating the error:
224 224  
233 +* the current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time.
234 +
225 225  Conditions for clearing the error:
226 226  
227 -* current of the battery module is less than the "Maximum current" value during the "Delay before clearing the error" time.
237 +* the current of the battery module is less than the "Maximum current" value during the "Delay before clearing the error" time.
228 228  
229 -If there is the error "Current unbalance (CH)" ("Current unbalance (DCH)"), the charging (discharging) contactor of the battery module opens.
239 +(% class="box infomessage" %)
240 +(((
241 +If there is the “Current unbalance (CH)” or "Current unbalance (DCH)" error, **corresponding battery module opens its charging or discharging contactor**.
242 +)))
230 230  
231 -=== Charging current unbalance ===
244 +=== Charging current unbalance (in “Charging” state) ===
232 232  
233 233  During battery charging, the currents of the battery modules may vary. The BMS Main X device detects modules whose charging currents are significantly different from the currents of other modules and generates the “Charging current unbalance” errors for them.
234 234  
... ... @@ -244,8 +244,10 @@
244 244  * Delay before clearing the error;
245 245  * Lock – a flag to block the error until the device is restarted.
246 246  
247 -As a result of the operation of the protection the “Charging current unbalance” are generated. Conditions for generating the errors:
260 +As a result of the operation of the protection the “Charging current unbalance” are generated.
248 248  
262 +Conditions for generating the errors:
263 +
249 249  * 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.
250 250  
251 251  Conditions for clearing the error:
... ... @@ -252,7 +252,10 @@
252 252  
253 253  * battery module is included in the largest group of modules with similar charge currents during the “Delay before clearing the error” time.
254 254  
255 -If there is the “Charging current unbalance” error, the battery module charging contactor opens.
270 +(% class="box infomessage" %)
271 +(((
272 +If there is the “Charging current unbalance” error, **corresponding battery module opens its charging contactor**.
273 +)))
256 256  
257 257  === Discharging current unbalance ===
258 258  
... ... @@ -270,8 +270,10 @@
270 270  * Delay before clearing the error;
271 271  * Lock – a flag to block the error until the device is restarted.
272 272  
273 -As a result of the operation of the protection the “Discharging current unbalance” are generated. Conditions for generating the errors:
291 +As a result of the operation of the protection the “Discharging current unbalance” are generated.
274 274  
293 +Conditions for generating the errors:
294 +
275 275  * 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.
276 276  
277 277  Conditions for clearing the error:
... ... @@ -278,14 +278,67 @@
278 278  
279 279  * battery module is included in the largest group of modules with similar discharge currents during the “Delay before clearing the error” time.
280 280  
281 -If there is the “Discharging current unbalance” error, the battery module discharging contactor opens.
301 +(% class="box infomessage" %)
302 +(((
303 +If there is the “Discharging current unbalance” error, **corresponding battery module opens its discharging contactor**.
304 +)))
282 282  
306 +=== High contactor temperature ===
307 +
308 +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.
309 +
310 +To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
311 +
312 +[[image:1740756362809-292.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
313 +
314 +In this section:
315 +
316 +* Enable – a flag to enable the protection;
317 +* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
318 +* Maximum contactor temperature, °C;
319 +* Tolerant contactor temperature, °C;
320 +* Delay before setting the error, second;
321 +* Delay before clearing the error, second;
322 +* Lock – a flag to block the error until the device is restarted.
323 +
324 +If there is a contactor overheat, the "High contactor temperature" error is generated.
325 +
326 +Error generation conditions:
327 +
328 +* the contactor temperature is greater than the “Maximum contactor temperature” value during the “Delay before setting the error” time.
329 +
330 +Conditions for removing the error:
331 +
332 +* the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
333 +
334 +=== WDT reset ===
335 +
336 +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.
337 +
338 +To change the parameters of the watchdog protection, select the "Protections → WDT reset" section:
339 +
340 +[[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"]]
341 +
342 +In this section:
343 +
344 +* Enable – a flag to enable the protection;
345 +* Delay before clearing the error, second;
346 +* Lock – a flag to block the error until the device is restarted.
347 +
348 +Conditions for removing the error:
349 +
350 +* the “Delay before clearing the error” time has passed from the device startup.
351 +
352 +If there is the "WDT reset" error, **“Critical error” is generated.**
353 +
283 283  === Critical error ===
284 284  
285 -Parameters for generating the critical error are configured in the "Protections - Critical error" section:
356 +Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
286 286  
287 -[[image:1734356802719-477.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="69" width="600"]]
358 +To change the critical error parameters, select the "Protections → Critical error" section:
288 288  
360 +[[image:1740756532131-419.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="118" width="800"]]
361 +
289 289  In this section:
290 290  
291 291  * Enable – a flag to enable the protection;
... ... @@ -293,18 +293,6 @@
293 293  * Delay before clearing the error;
294 294  * Lock – a flag to block the error until the device is restarted.
295 295  
296 -The critical error flag is generated if at least one of the following errors persists during the "Delay before setting the error" time:
369 +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.
297 297  
298 -* «Battery cover»;
299 -* «Insulation fault»;
300 -* «CH contactor feedback error»;
301 -* «DCH contactor feedback error»;
302 -* «CH/DCH contactor feedback error»;
303 -* «Module offline».
304 -
305 -The critical error flag is cleared if there are no errors from the list above during the "Delay before clearing the error" time.
306 -
307 -(% class="box warningmessage" %)
308 -(((
309 -**When the critical error flag is present, all battery contactors open.**
310 -)))
371 +The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
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