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Changes for page 3.4 Protections

Last modified by Admin on 2025/06/11 15:57
From version 8.5
edited by Admin
on 2025/02/28 15:24
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To version 10.1
edited by Admin
on 2025/02/28 15:26
Change comment: There is no comment for this version

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226 226  * Check all the time (not only in the ‘Balancing’ state) – a flag to enable voltage check not only in “Balancing” state;
227 227  * Lock – a flag to block the error until the device is restarted.
228 228  
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:
229 +As a result of the operation of the current unbalance protection the errors “Current unbalance (CH)” and “Current unbalance (DCH)” are generated.
230 230  
231 +Conditions for generating the error:
232 +
231 231  * the current of the battery module is greater than the "Maximum current" value during the "Delay before setting the error" time.
232 232  
233 233  Conditions for clearing the error:
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255 255  * Delay before clearing the error;
256 256  * Lock – a flag to block the error until the device is restarted.
257 257  
258 -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.
259 259  
262 +Conditions for generating the errors:
263 +
260 260  * 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.
261 261  
262 262  Conditions for clearing the error:
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284 284  * Delay before clearing the error;
285 285  * Lock – a flag to block the error until the device is restarted.
286 286  
287 -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.
288 288  
293 +Conditions for generating the errors:
294 +
289 289  * 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.
290 290  
291 291  Conditions for clearing the error:
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297 297  If there is the “Discharging current unbalance” error, **corresponding battery module opens its discharging contactor**.
298 298  )))
299 299  
300 -=== High contacto ===
306 +=== High contactor temperature ===
301 301  
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 +
302 302  === WDT reset ===
303 303  
304 304  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.
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