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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:23
From version 2.2
edited by Admin
on 2025/02/26 11:58
Change comment: There is no comment for this version
To version 1.7
edited by Admin
on 2025/02/24 14:10
Change comment: There is no comment for this version

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... ... @@ -43,25 +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 Main 3 device can check if the charging current exceeds the estimated limit based on the [[Charge map>>url:https://docs.movicomelectric.com/bin/view/Battery%20management%20systems/BMS%20Main%203/3.%20Configuration/3.3%20Control/#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 -
55 -In this section:
56 -
57 -* Enable – a flag to enable the protection;
58 -* 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;
59 -* Region 1: Current difference – a value of maximum absolute current diffr, A;
60 -* Region 2: Current difference – a value of maximum relative current excess, A;
61 -* Delay before setting the error, millisecond;
62 -* Delay before clearing the error, second;
63 -* Lock – a flag to block the error until the device is restarted.
64 -
65 65  === Undervoltage ===
66 66  
67 67  The BMS Mini device implements battery protection from too low voltage on the cells.
... ... @@ -89,6 +89,7 @@
89 89  
90 90  * 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.
91 91  
74 +
92 92  === Overvoltage ===
93 93  
94 94  The BMS Mini device implements battery protection from too high voltage on the cells.
... ... @@ -383,6 +383,11 @@
383 383  
384 384  * the “Delay before clearing the error” time has passed since the error was generated.
385 385  
369 +(% class="box infomessage" %)
370 +(((
371 +If there is the "CH contactor cycles error" error, the **charging** contactor opens.
372 +)))
373 +
386 386  === Discharge contactor cycles protection ===
387 387  
388 388  The BMS Mini device protects the discharging contactor against frequent switching.
... ... @@ -411,6 +411,11 @@
411 411  
412 412  * the “Delay before clearing the error” time has passed since the error was generated.
413 413  
402 +(% class="box infomessage" %)
403 +(((
404 +If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
405 +)))
406 +
414 414  === Temperature sensors ===
415 415  
416 416  The BMS Mini device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
... ... @@ -430,7 +430,7 @@
430 430  
431 431  (% class="box warningmessage" %)
432 432  (((
433 -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.**
434 434  )))
435 435  
436 436  === WDT reset ===
... ... @@ -453,7 +453,7 @@
453 453  
454 454  (% class="box warningmessage" %)
455 455  (((
456 -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.**
457 457  )))
458 458  
459 459  === Unallowable charging ===
... ... @@ -481,6 +481,11 @@
481 481  
482 482  * the battery current is zero during the “Delay before clearing the error” time.
483 483  
477 +(% class="box infomessage" %)
478 +(((
479 +If there is the "Unallowable charging" error, the **discharging **contactor opens.
480 +)))
481 +
484 484  === Stuck contactor ===
485 485  
486 486  The BMS Mini device protects contactors against sticking.
... ... @@ -496,7 +496,7 @@
496 496  * Delay before clearing the error, second;
497 497  * Lock – a flag to block the error until the device is restarted.
498 498  
499 -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:
500 500  
501 501  * charging and discharging contactors are open, but the “Charging current present” or “Discharging current present” signal is set.
502 502  
... ... @@ -567,3 +567,8 @@
567 567  * “Insulation fault”.
568 568  
569 569  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 +)))