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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:23
From version 4.1
edited by Admin
on 2025/02/26 12:01
Change comment: Загрузить новое вложение 1740571296344-411.png
To version 1.7
edited by Admin
on 2025/02/24 14:10
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... ... @@ -43,26 +43,7 @@
43 43  * the current is positive (charging) or zero, and its modulo value is less than the “Tolerant charging current” value for the “Delay before clearing the error” time;
44 44  * the current is negative (discharging), and its modulo value is less than the “Tolerant discharging current” value for the “Delay before clearing the error” time.
45 45  
46 -=== Charge current limit ===
47 47  
48 -The BMS Mini device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Mini S.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
49 -
50 -Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
51 -
52 -To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
53 -
54 -[[image:1740571132019-848.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="143" width="800"]]
55 -
56 -In this section:
57 -
58 -* Enable – a flag to enable the protection;
59 -* Threshold to switch from Region 1 to Region 2 – a current value at which current excess calculation will be switched from absolute to relative difference, A;
60 -* Region 1: Current difference – a value of maximum absolute current difference, A;
61 -* Region 2: Current difference – a value of maximum relative current excess, A;
62 -* Delay before setting the error, millisecond;
63 -* Delay before clearing the error, second;
64 -* Lock – a flag to block the error until the device is restarted.
65 -
66 66  === Undervoltage ===
67 67  
68 68  The BMS Mini device implements battery protection from too low voltage on the cells.
... ... @@ -90,6 +90,7 @@
90 90  
91 91  * the minimum voltage among all cells of the battery is greater than the “Tolerant cell voltage” value for the “Delay before clearing the error” time.
92 92  
74 +
93 93  === Overvoltage ===
94 94  
95 95  The BMS Mini device implements battery protection from too high voltage on the cells.
... ... @@ -384,6 +384,11 @@
384 384  
385 385  * the “Delay before clearing the error” time has passed since the error was generated.
386 386  
369 +(% class="box infomessage" %)
370 +(((
371 +If there is the "CH contactor cycles error" error, the **charging** contactor opens.
372 +)))
373 +
387 387  === Discharge contactor cycles protection ===
388 388  
389 389  The BMS Mini device protects the discharging contactor against frequent switching.
... ... @@ -412,6 +412,11 @@
412 412  
413 413  * the “Delay before clearing the error” time has passed since the error was generated.
414 414  
402 +(% class="box infomessage" %)
403 +(((
404 +If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
405 +)))
406 +
415 415  === Temperature sensors ===
416 416  
417 417  The BMS Mini device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
... ... @@ -431,7 +431,7 @@
431 431  
432 432  (% class="box warningmessage" %)
433 433  (((
434 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error” **is generated.
426 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error” **is generated and **all contactors open.**
435 435  )))
436 436  
437 437  === WDT reset ===
... ... @@ -454,7 +454,7 @@
454 454  
455 455  (% class="box warningmessage" %)
456 456  (((
457 -If there is the "WDT reset" error, the **“Critical error” **is generated.
449 +If there is the "WDT reset" error, the **“Critical error” **is generated and **all contactors open.**
458 458  )))
459 459  
460 460  === Unallowable charging ===
... ... @@ -482,6 +482,11 @@
482 482  
483 483  * the battery current is zero during the “Delay before clearing the error” time.
484 484  
477 +(% class="box infomessage" %)
478 +(((
479 +If there is the "Unallowable charging" error, the **discharging **contactor opens.
480 +)))
481 +
485 485  === Stuck contactor ===
486 486  
487 487  The BMS Mini device protects contactors against sticking.
... ... @@ -497,7 +497,7 @@
497 497  * Delay before clearing the error, second;
498 498  * Lock – a flag to block the error until the device is restarted.
499 499  
500 -If there is a stuck contactor, the “Stuck contactor” error is generated. Error generation conditions:
497 +If there is a stuck contactor, the “Stuck contactor” error is generated Error generation conditions:
501 501  
502 502  * charging and discharging contactors are open, but the “Charging current present” or “Discharging current present” signal is set.
503 503  
... ... @@ -568,3 +568,8 @@
568 568  * “Insulation fault”.
569 569  
570 570  The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
568 +
569 +(% class="box warningmessage" %)
570 +(((
571 +If there is the “Critical error”, **all contactors open.**
572 +)))
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