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Changes for page 3.4 Protections

Last modified by Admin on 2025/06/11 15:57
From version 8.1
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on 2025/02/28 15:01
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To version 9.1
edited by Admin
on 2025/02/28 15:26
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215 215  
216 216  Protection against current unbalance of battery modules is configured in the section "Protections - Current unbalance":
217 217  
218 -[[image:1734356793451-440.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="103" width="800"]]
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"]]
219 219  
220 220  In this section:
221 221  
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223 223  * Maximum current – a maximum allowable self-balancing current of battery modules, A;
224 224  * Delay before setting the error;
225 225  * 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;
226 226  * Lock – a flag to block the error until the device is restarted.
227 227  
228 228  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:
229 229  
230 -* current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time.
231 +* the current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time.
231 231  
232 232  Conditions for clearing the error:
233 233  
234 -* current of the battery module is less than the "Maximum current" value during the "Delay before clearing the error" time.
235 +* the current of the battery module is less than the "Maximum current" value during the "Delay before clearing the error" time.
235 235  
236 -If there is the error "Current unbalance (CH)" ("Current unbalance (DCH)"), the charging (discharging) contactor of the battery module opens.
237 +(% class="box infomessage" %)
238 +(((
239 +If there is the “Current unbalance (CH)” or "Current unbalance (DCH)" error, **corresponding battery module opens its charging or discharging contactor**.
240 +)))
237 237  
238 -=== Charging current unbalance ===
242 +=== Charging current unbalance (in “Charging” state) ===
239 239  
240 240  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.
241 241  
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259 259  
260 260  * battery module is included in the largest group of modules with similar charge currents during the “Delay before clearing the error” time.
261 261  
262 -If there is the “Charging current unbalance” error, the battery module charging contactor opens.
266 +(% class="box infomessage" %)
267 +(((
268 +If there is the “Charging current unbalance” error, **corresponding battery module opens its charging contactor**.
269 +)))
263 263  
264 264  === Discharging current unbalance ===
265 265  
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285 285  
286 286  * battery module is included in the largest group of modules with similar discharge currents during the “Delay before clearing the error” time.
287 287  
288 -If there is the “Discharging current unbalance” error, the battery module discharging contactor opens.
295 +(% class="box infomessage" %)
296 +(((
297 +If there is the “Discharging current unbalance” error, **corresponding battery module opens its discharging contactor**.
298 +)))
289 289  
300 +=== High contactor temperature ===
301 +
302 +=== WDT reset ===
303 +
304 +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.
305 +
306 +To change the parameters of the watchdog protection, select the "Protections → WDT reset" section:
307 +
290 290  === Critical error ===
291 291  
292 292  Parameters for generating the critical error are configured in the "Protections - Critical error" section:
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