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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:23
From version 7.2
edited by Admin
on 2025/02/26 12:07
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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  
... ... @@ -124,9 +124,9 @@
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;
90 +* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Overvoltage" error is generated;
130 130  * Lock – a flag to block the error until the device is restarted.
131 131  
132 132  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
... ... @@ -250,7 +250,7 @@
250 250  
251 251  (% class="box warningmessage" %)
252 252  (((
253 -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.**
254 254  )))
255 255  
256 256  === Cell count ===
... ... @@ -279,7 +279,7 @@
279 279  
280 280  (% class="box warningmessage" %)
281 281  (((
282 -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.**
283 283  )))
284 284  
285 285  === Short circuit ===
... ... @@ -311,6 +311,11 @@
311 311  
312 312  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
313 313  
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 +
314 314  === High contactor temperature ===
315 315  
316 316  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.
... ... @@ -374,7 +374,7 @@
374 374  
375 375  (% class="box warningmessage" %)
376 376  (((
377 -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.**
378 378  )))
379 379  
380 380  === Charge contactor cycles ===
... ... @@ -393,6 +393,7 @@
393 393  * Delay before setting the error, millisecond;
394 394  * Delay before clearing the error, second;
395 395  * Lock – a flag to block the error until the device is restarted.
362 +* Number of cycles – a number of the charging contactor switchings made during battery operation.
396 396  
397 397  If there is the high switching frequency of the charging contactor, the “CH contactor cycles error” is generated.
398 398  
... ... @@ -404,6 +404,11 @@
404 404  
405 405  * the “Delay before clearing the error” time has passed since the error was generated.
406 406  
374 +(% class="box infomessage" %)
375 +(((
376 +If there is the "CH contactor cycles error" error, the **charging** contactor opens.
377 +)))
378 +
407 407  === Discharge contactor cycles protection ===
408 408  
409 409  The BMS Mini device protects the discharging contactor against frequent switching.
... ... @@ -410,7 +410,7 @@
410 410  
411 411  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
412 412  
413 -[[image:1740571600741-802.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="128" width="800"]]
385 +[[image:1733748068420-615.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="139" width="800"]]
414 414  
415 415  In this section:
416 416  
... ... @@ -420,6 +420,7 @@
420 420  * Delay before setting the error, millisecond;
421 421  * Delay before clearing the error, second;
422 422  * Lock – a flag to block the error until the device is restarted.
395 +* Number of cycles – a number of the charging contactor switchings made during battery operation.
423 423  
424 424  If there is the high switching frequency of the discharging contactor, the “DCH contactor cycles error” is generated.
425 425  
... ... @@ -431,6 +431,11 @@
431 431  
432 432  * the “Delay before clearing the error” time has passed since the error was generated.
433 433  
407 +(% class="box infomessage" %)
408 +(((
409 +If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
410 +)))
411 +
434 434  === Temperature sensors ===
435 435  
436 436  The BMS Mini device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
... ... @@ -450,7 +450,7 @@
450 450  
451 451  (% class="box warningmessage" %)
452 452  (((
453 -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.**
454 454  )))
455 455  
456 456  === WDT reset ===
... ... @@ -473,7 +473,7 @@
473 473  
474 474  (% class="box warningmessage" %)
475 475  (((
476 -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.**
477 477  )))
478 478  
479 479  === Unallowable charging ===
... ... @@ -501,6 +501,11 @@
501 501  
502 502  * the battery current is zero during the “Delay before clearing the error” time.
503 503  
482 +(% class="box infomessage" %)
483 +(((
484 +If there is the "Unallowable charging" error, the **discharging **contactor opens.
485 +)))
486 +
504 504  === Stuck contactor ===
505 505  
506 506  The BMS Mini device protects contactors against sticking.
... ... @@ -516,7 +516,7 @@
516 516  * Delay before clearing the error, second;
517 517  * Lock – a flag to block the error until the device is restarted.
518 518  
519 -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:
520 520  
521 521  * charging and discharging contactors are open, but the “Charging current present” or “Discharging current present” signal is set.
522 522  
... ... @@ -587,3 +587,8 @@
587 587  * “Insulation fault”.
588 588  
589 589  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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