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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:23
From version 6.3
edited by Admin
on 2025/02/26 12:03
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To version 1.6
edited by Admin
on 2025/02/24 14:09
Change comment: There is no comment for this version

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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||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="147" width="800"]]
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  
... ... @@ -124,7 +124,6 @@
124 124  * Enable – a flag to enable the protection;
125 125  * Maximum cell voltage, V;
126 126  * Tolerant cell voltage, V;
127 -* 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;
128 128  * Delay before setting the error, millisecond;
129 129  * Delay before clearing the error, second;
130 130  * Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Overvoltage" error is generated;
... ... @@ -251,7 +251,7 @@
251 251  
252 252  (% class="box warningmessage" %)
253 253  (((
254 -If there is the " Cell monitor offline error", the **“Critical error” **is generated.
214 +If there is the " Cell monitor offline error", the **“Critical error” **is generated and** all contactors open.**
255 255  )))
256 256  
257 257  === Cell count ===
... ... @@ -280,7 +280,7 @@
280 280  
281 281  (% class="box warningmessage" %)
282 282  (((
283 -If there is the "Cell count error", the **“Critical error” **is generated.
243 +If there is the "Cell count error", the **“Critical error” **is generated and **all contactors open.**
284 284  )))
285 285  
286 286  === Short circuit ===
... ... @@ -312,6 +312,11 @@
312 312  
313 313  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
314 314  
275 +(% class="box infomessage" %)
276 +(((
277 +If there is the "Short circuit" error, the **charging **contactor opens (the “Switch off the charging contactor on error” flag is set) and the **discharging **contactor opens (the “Switch off the discharging contactor on error flag” is set).
278 +)))
279 +
315 315  === High contactor temperature ===
316 316  
317 317  The BMS Mini device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X6 connector is used.
... ... @@ -375,7 +375,7 @@
375 375  
376 376  (% class="box warningmessage" %)
377 377  (((
378 -If there is the “Current sensor error”, the **“Critical error” **is generated.
343 +If there is the “Current sensor error”, the **“Critical error” **is generated and** all contactors open.**
379 379  )))
380 380  
381 381  === Charge contactor cycles ===
... ... @@ -406,6 +406,11 @@
406 406  
407 407  * the “Delay before clearing the error” time has passed since the error was generated.
408 408  
374 +(% class="box infomessage" %)
375 +(((
376 +If there is the "CH contactor cycles error" error, the **charging** contactor opens.
377 +)))
378 +
409 409  === Discharge contactor cycles protection ===
410 410  
411 411  The BMS Mini device protects the discharging contactor against frequent switching.
... ... @@ -434,6 +434,11 @@
434 434  
435 435  * the “Delay before clearing the error” time has passed since the error was generated.
436 436  
407 +(% class="box infomessage" %)
408 +(((
409 +If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
410 +)))
411 +
437 437  === Temperature sensors ===
438 438  
439 439  The BMS Mini device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
... ... @@ -453,7 +453,7 @@
453 453  
454 454  (% class="box warningmessage" %)
455 455  (((
456 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error” **is generated.
431 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error” **is generated and **all contactors open.**
457 457  )))
458 458  
459 459  === WDT reset ===
... ... @@ -476,7 +476,7 @@
476 476  
477 477  (% class="box warningmessage" %)
478 478  (((
479 -If there is the "WDT reset" error, the **“Critical error” **is generated.
454 +If there is the "WDT reset" error, the **“Critical error” **is generated and **all contactors open.**
480 480  )))
481 481  
482 482  === Unallowable charging ===
... ... @@ -504,6 +504,11 @@
504 504  
505 505  * the battery current is zero during the “Delay before clearing the error” time.
506 506  
482 +(% class="box infomessage" %)
483 +(((
484 +If there is the "Unallowable charging" error, the **discharging **contactor opens.
485 +)))
486 +
507 507  === Stuck contactor ===
508 508  
509 509  The BMS Mini device protects contactors against sticking.
... ... @@ -519,7 +519,7 @@
519 519  * Delay before clearing the error, second;
520 520  * Lock – a flag to block the error until the device is restarted.
521 521  
522 -If there is a stuck contactor, the “Stuck contactor” error is generated. Error generation conditions:
502 +If there is a stuck contactor, the “Stuck contactor” error is generated Error generation conditions:
523 523  
524 524  * charging and discharging contactors are open, but the “Charging current present” or “Discharging current present” signal is set.
525 525  
... ... @@ -590,3 +590,8 @@
590 590  * “Insulation fault”.
591 591  
592 592  The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
573 +
574 +(% class="box warningmessage" %)
575 +(((
576 +If there is the “Critical error”, **all contactors open.**
577 +)))
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