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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/27 13:04
From version 19.1
edited by Admin
on 2025/11/10 11:11
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To version 30.1
edited by Admin
on 2026/04/27 13:04
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... ... @@ -252,6 +252,36 @@
252 252  If there is the "Battery cover error", the **“Critical error” **is generated.
253 253  )))
254 254  
255 +=== High board temperature ===
256 +
257 +BMS Mini monitors its temperature and disables the cell balancing when it overheats.
258 +
259 +To change the overheating protection parameters of BMS Mini device, select the "Protections → High board temperature" section:
260 +
261 +[[image:1777295045614-956.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="136" width="800"]]In this section:
262 +
263 +* Enable – a flag to enable the protection;
264 +* Maximum temperature, °C;
265 +* Tolerant temperature, °C;
266 +* Delay before setting the error, second;
267 +* Delay before clearing the error, second;
268 +* Lock – lock the error until the device is reset.
269 +
270 +As a result of the operation of the protection from high temperatures of BMS Mini device, the "High board temperature" is generated.
271 +
272 +Error generation conditions:
273 +
274 +* a BMS Mini device temperature is higher than the “Maximum temperature” value.
275 +
276 +Conditions for removing the error:
277 +
278 +* a BMS Mini device temperature is less than the “Tolerant temperature” value.
279 +
280 +(% class="box infomessage" %)
281 +(((
282 +Cell balancing is disabled on BMS Mini device with high temperature.
283 +)))
284 +
255 255  === Cell monitor offline ===
256 256  
257 257  The BMS Mini device checks if there is connection with cell monitor and set an error if not.
... ... @@ -309,6 +309,35 @@
309 309  If there is the "Cell count error", the **“Critical error” **is generated.
310 310  )))
311 311  
342 +=== Temperature sensor count ===
343 +
344 +To change the protection parameters from the mismatch of the number of temperature sensors to the set value, select the "Protections → Temperature sensor count" section:
345 +
346 +[[image:1762773073782-768.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="130" width="800"]]
347 +
348 +In this section:
349 +
350 +* Enable – a flag to enable the protection;
351 +* Number of cells – a number of temperature sensors connected to the BMS;
352 +* Delay before setting the error, millisecond;
353 +* Delay before clearing the error, second;
354 +* Lock – a flag to block the error until the device is restarted.
355 +
356 +As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensor count error" is generated.
357 +
358 +Error generation conditions:
359 +
360 +* the number of temperature sensors connected to the BMS is **not equal** to the “Number of temperature sensors” value during the “Delay before setting the error” time.
361 +
362 +Conditions for removing the error:
363 +
364 +* the number of temperature sensors connected to the BMS is **equal** to the “Number of temperature sensors” value during the “Delay before clearing the error” time.
365 +
366 +(% class="box warningmessage" %)
367 +(((
368 +If there is the "T-sensor count error", the **“Critical error” **is generated**.**
369 +)))
370 +
312 312  === Short circuit ===
313 313  
314 314  The BMS Mini device implements a protection of power circuits (contactors, power wires) against overheating caused by the flow of high current for a long time.
... ... @@ -404,6 +404,24 @@
404 404  If there is the “Current sensor error”, the **“Critical error” **is generated.
405 405  )))
406 406  
466 +=== MOSFET ===
467 +
468 +BMS Mini S device checks the status of MOSFET switches that are used to control the contactors. To change the parameters of the MOSFET switch protection, select the "Protections → MOSFET " section:
469 +
470 +[[image:1762773566548-852.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="105" width="800"]]
471 +
472 +In this section:
473 +
474 +* Delay before clearing the error, second;
475 +* Lock – a flag to block the error until the device is restarted.
476 +
477 +The “MOSFET error” occurs when the device detects a shortage in contactor coil control circuit or an overheating of the MOSFET switch. Error is removed when the temperature of MOSFET switch is normal during “Delay before clearing the error” time.
478 +
479 +(% class="box warningmessage" %)
480 +(((
481 +If there is the "MOSFET error", the **“Critical error” **is generated.
482 +)))
483 +
407 407  === Charge contactor cycles ===
408 408  
409 409  The BMS Mini device protects the charging contactor against frequent switching.
... ... @@ -431,7 +431,7 @@
431 431  
432 432  * the “Delay before clearing the error” time has passed since the error was generated.
433 433  
434 -=== Discharge contactor cycles protection ===
511 +=== Discharge contactor cycles ===
435 435  
436 436  The BMS Mini device protects the discharging contactor against frequent switching.
437 437  
... ... @@ -606,7 +606,7 @@
606 606  
607 607  To change the critical error parameters, select the "Protections → Critical error" section:
608 608  
609 -[[image:1733748083469-183.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
686 +[[image:1762775067035-203.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="143" width="800"]]
610 610  
611 611  In this section:
612 612  
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613 613  * Enable – a flag to enable the protection;
614 614  * Delay before setting the error, millisecond;
615 615  * Delay before clearing the error, second;
693 +* Errors 1,2 to ignore when setting the critical error;
616 616  * Lock – a flag to block the error until the device is restarted.
617 617  
618 618  The "Critical error" signal is generated if at least one of the critical errors (see [[Errors>>doc:Battery management systems.Additional information.1\. Battery controllers\: signals and errors.WebHome||anchor="HErrors"]]) is generated during the “Delay before setting the error” time.
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