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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:23
From version 5.1
edited by Admin
on 2025/02/26 12:02
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To version 1.7
edited by Admin
on 2025/02/24 14:10
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... ... @@ -43,36 +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 -=== Discharge current limit ===
67 -
68 -The BMS Mini device can check if the discharging current exceeds the estimated limit based on the [[Discharge map>>doc:Battery management systems.BMS Mini S.3\. Configuration.3\.3 Control.WebHome||anchor="HDischargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
69 -
70 -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.
71 -
72 -To change the overcurrent protection of the battery, select the "Protections → Discharge current limit" section:
73 -
74 -[[image:1740571296344-411.png]]
75 -
76 76  === Undervoltage ===
77 77  
78 78  The BMS Mini device implements battery protection from too low voltage on the cells.
... ... @@ -100,6 +100,7 @@
100 100  
101 101  * 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.
102 102  
74 +
103 103  === Overvoltage ===
104 104  
105 105  The BMS Mini device implements battery protection from too high voltage on the cells.
... ... @@ -394,6 +394,11 @@
394 394  
395 395  * the “Delay before clearing the error” time has passed since the error was generated.
396 396  
369 +(% class="box infomessage" %)
370 +(((
371 +If there is the "CH contactor cycles error" error, the **charging** contactor opens.
372 +)))
373 +
397 397  === Discharge contactor cycles protection ===
398 398  
399 399  The BMS Mini device protects the discharging contactor against frequent switching.
... ... @@ -422,6 +422,11 @@
422 422  
423 423  * the “Delay before clearing the error” time has passed since the error was generated.
424 424  
402 +(% class="box infomessage" %)
403 +(((
404 +If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
405 +)))
406 +
425 425  === Temperature sensors ===
426 426  
427 427  The BMS Mini device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
... ... @@ -441,7 +441,7 @@
441 441  
442 442  (% class="box warningmessage" %)
443 443  (((
444 -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.**
445 445  )))
446 446  
447 447  === WDT reset ===
... ... @@ -464,7 +464,7 @@
464 464  
465 465  (% class="box warningmessage" %)
466 466  (((
467 -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.**
468 468  )))
469 469  
470 470  === Unallowable charging ===
... ... @@ -492,6 +492,11 @@
492 492  
493 493  * the battery current is zero during the “Delay before clearing the error” time.
494 494  
477 +(% class="box infomessage" %)
478 +(((
479 +If there is the "Unallowable charging" error, the **discharging **contactor opens.
480 +)))
481 +
495 495  === Stuck contactor ===
496 496  
497 497  The BMS Mini device protects contactors against sticking.
... ... @@ -507,7 +507,7 @@
507 507  * Delay before clearing the error, second;
508 508  * Lock – a flag to block the error until the device is restarted.
509 509  
510 -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:
511 511  
512 512  * charging and discharging contactors are open, but the “Charging current present” or “Discharging current present” signal is set.
513 513  
... ... @@ -578,3 +578,8 @@
578 578  * “Insulation fault”.
579 579  
580 580  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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