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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:23
From version 6.2
edited by Admin
on 2025/02/26 12:03
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To version 1.7
edited by Admin
on 2025/02/24 14:10
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... ... @@ -43,46 +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||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="151" width="800"]]
75 -
76 -In this section:
77 -
78 -* Enable – a flag to enable the protection;
79 -* 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;
80 -* Region 1: Current difference – a value of maximum absolute current difference, A;
81 -* Region 2: Current difference – a value of maximum relative current excess, A;
82 -* Delay before setting the error, millisecond;
83 -* Delay before clearing the error, second;
84 -* Lock – a flag to block the error until the device is restarted.
85 -
86 86  === Undervoltage ===
87 87  
88 88  The BMS Mini device implements battery protection from too low voltage on the cells.
... ... @@ -89,7 +89,7 @@
89 89  
90 90  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
91 91  
92 -[[image:1740571345293-460.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
53 +[[image:1733748033237-837.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="127" width="800"]]
93 93  
94 94  In this section:
95 95  
... ... @@ -96,7 +96,6 @@
96 96  * Enable – a flag to enable the protection;
97 97  * Minimum cell voltage, V;
98 98  * Tolerant cell voltage, V;
99 -* Check the open circuit voltage instead of the actual voltage – a flag to enable the check of voltage correction due to current and cell resistance;
100 100  * Delay before setting the error, millisecond;
101 101  * Delay before clearing the error, second;
102 102  * Lock – a flag to block the error until the device is restarted.
... ... @@ -111,6 +111,7 @@
111 111  
112 112  * 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.
113 113  
74 +
114 114  === Overvoltage ===
115 115  
116 116  The BMS Mini device implements battery protection from too high voltage on the cells.
... ... @@ -117,7 +117,7 @@
117 117  
118 118  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
119 119  
120 -[[image:1740571383842-536.png]]
81 +[[image:1733748033238-995.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
121 121  
122 122  In this section:
123 123  
... ... @@ -405,6 +405,11 @@
405 405  
406 406  * the “Delay before clearing the error” time has passed since the error was generated.
407 407  
369 +(% class="box infomessage" %)
370 +(((
371 +If there is the "CH contactor cycles error" error, the **charging** contactor opens.
372 +)))
373 +
408 408  === Discharge contactor cycles protection ===
409 409  
410 410  The BMS Mini device protects the discharging contactor against frequent switching.
... ... @@ -433,6 +433,11 @@
433 433  
434 434  * the “Delay before clearing the error” time has passed since the error was generated.
435 435  
402 +(% class="box infomessage" %)
403 +(((
404 +If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
405 +)))
406 +
436 436  === Temperature sensors ===
437 437  
438 438  The BMS Mini device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
... ... @@ -452,7 +452,7 @@
452 452  
453 453  (% class="box warningmessage" %)
454 454  (((
455 -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.**
456 456  )))
457 457  
458 458  === WDT reset ===
... ... @@ -475,7 +475,7 @@
475 475  
476 476  (% class="box warningmessage" %)
477 477  (((
478 -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.**
479 479  )))
480 480  
481 481  === Unallowable charging ===
... ... @@ -503,6 +503,11 @@
503 503  
504 504  * the battery current is zero during the “Delay before clearing the error” time.
505 505  
477 +(% class="box infomessage" %)
478 +(((
479 +If there is the "Unallowable charging" error, the **discharging **contactor opens.
480 +)))
481 +
506 506  === Stuck contactor ===
507 507  
508 508  The BMS Mini device protects contactors against sticking.
... ... @@ -518,7 +518,7 @@
518 518  * Delay before clearing the error, second;
519 519  * Lock – a flag to block the error until the device is restarted.
520 520  
521 -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:
522 522  
523 523  * charging and discharging contactors are open, but the “Charging current present” or “Discharging current present” signal is set.
524 524  
... ... @@ -589,3 +589,8 @@
589 589  * “Insulation fault”.
590 590  
591 591  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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