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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:19
From version 16.47
edited by Admin
on 2024/12/26 15:11
Change comment: There is no comment for this version
To version 19.1
edited by Admin
on 2024/12/26 15:39
Change comment: There is no comment for this version

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... ... @@ -6,6 +6,12 @@
6 6  
7 7  The BMS Main 3 device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
8 8  
9 +(% class="box warningmessage" %)
10 +(((
11 +**Attention!**
12 +Behavior of contactors at different errors is configured in **corresponding contactor settings**!
13 +)))
14 +
9 9  === Overcurrent ===
10 10  
11 11  The BMS Main 3 device performs the overcurrent protection depending on current sensor values.
... ... @@ -37,14 +37,9 @@
37 37  * 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;
38 38  * the current is negative (discharging) or zero, and its modulo value is less than the “Tolerant discharging current” value for the “Delay before clearing the error” time.
39 39  
40 -(% class="box infomessage" %)
41 -(((
42 -If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43 -)))
44 -
45 45  === Charge current limit ===
46 46  
47 -The BMS Main 3 device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]].  If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
48 +The BMS Main 3 device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
48 48  
49 49  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.
50 50  
... ... @@ -53,18 +53,33 @@
53 53  [[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section:
54 54  
55 55  * Enable – a flag to enable the protection;
56 -* Threshold to switch from Region 1 to Region 2
57 -*
57 +* 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;
58 +* Region 1: Current difference – a value of maximum absolute current diffr, A;
59 +* Region 2: Current difference – a value of maximum relative current excess, A;
60 +* Delay before setting the error, millisecond;
61 +* Delay before clearing the error, second;
62 +* Lock – a flag to block the error until the device is restarted.
58 58  
59 -
60 60  === Discharge current limit ===
61 61  
62 -The BMS Main 3 device can check if the discharging current exceeds the estimated limit based on the [[Discharge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HDischargemap"]].  If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
66 +The BMS Main 3 device can check if the discharging current exceeds the estimated limit based on the [[Discharge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HDischargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
63 63  
64 64  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.
65 65  
66 -To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
70 +To change the overcurrent protection of the battery, select the "Protections → Discharge current limit" section:
67 67  
72 +[[image:1735225942893-869.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
73 +
74 +In this section:
75 +
76 +* Enable – a flag to enable the protection;
77 +* 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;
78 +* Region 1: Current difference – a value of maximum absolute current diffr, A;
79 +* Region 2: Current difference – a value of maximum relative current excess, A;
80 +* Delay before setting the error, millisecond;
81 +* Delay before clearing the error, second;
82 +* Lock – a flag to block the error until the device is restarted.
83 +
68 68  === Undervoltage ===
69 69  
70 70  The BMS Main 3 device implements battery protection from too low voltage on the cells.
... ... @@ -93,11 +93,6 @@
93 93  
94 94  * 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.
95 95  
96 -(% class="box infomessage" %)
97 -(((
98 -If there is the "Undervoltage" error, the **discharging **contactor opens.
99 -)))
100 -
101 101  === Overvoltage ===
102 102  
103 103  The BMS Main 3 device implements battery protection from too high voltage on the cells.
... ... @@ -126,11 +126,6 @@
126 126  
127 127  * the maximum voltage among all cells of the battery is less than the “Tolerant cell voltage” value for the “Delay before clearing the error” time.
128 128  
129 -(% class="box infomessage" %)
130 -(((
131 -If there is the "Overvoltage" error, the **charging** contactor and **discharging **contactor open (if the “Switch off the discharging contactor on error” flag is set).
132 -)))
133 -
134 134  === Low temperature ===
135 135  
136 136  The BMS Main 3 device implements battery protection from too low temperature.
... ... @@ -160,12 +160,6 @@
160 160  
161 161  * the minimum temperature among all cells of the battery is greater than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
162 162  
163 -(% class="box infomessage" %)
164 -(((
165 -If there is the "Low temperature (CH)" error, the **charging **contactor opens.
166 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
167 -)))
168 -
169 169  === High temperature ===
170 170  
171 171  The BMS Main 3 device implements battery protection from too high temperature.
... ... @@ -195,12 +195,6 @@
195 195  
196 196  * the maximum temperature among all cells of the battery is less than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
197 197  
198 -(% class="box infomessage" %)
199 -(((
200 -If there is the "High temperature (CH)" error, the **charging **contactor opens.
201 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
202 -)))
203 -
204 204  === Battery cover ===
205 205  
206 206  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -226,7 +226,7 @@
226 226  
227 227  (% class="box warningmessage" %)
228 228  (((
229 -If there is the "Battery cover error", the **“Critical error” **is generated **and all contactors open.**
223 +If there is the "Battery cover error", the **“Critical error” **is generated**.**
230 230  )))
231 231  
232 232  === High humidity ===
... ... @@ -288,9 +288,9 @@
288 288  
289 289  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
290 290  
291 -(% class="box infomessage" %)
285 +(% class="box warningmessage" %)
292 292  (((
293 -If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.
287 +If there is the “Water” error, the **“Critical error”** is generated.
294 294  )))
295 295  
296 296  === Logic high temperature ===
... ... @@ -346,7 +346,7 @@
346 346  
347 347  (% class="box warningmessage" %)
348 348  (((
349 -If there is the "Logic offline" error, the **“Critical error” **is generated and **all relays open.**
343 +If there is the "Logic offline" error, the **“Critical error” **is generated**.**
350 350  )))
351 351  
352 352  === Cell count ===
... ... @@ -375,7 +375,7 @@
375 375  
376 376  (% class="box warningmessage" %)
377 377  (((
378 -If there is the "Cell count error", the **“Critical error” **is generated and **all relays open.**
372 +If there is the "Cell count error", the **“Critical error” **is generated**.**
379 379  )))
380 380  
381 381  === Logic count ===
... ... @@ -403,7 +403,7 @@
403 403  
404 404  (% class="box warningmessage" %)
405 405  (((
406 -If there is the "Logic count error", the **“Critical error”** is generated and **all relays open.**
400 +If there is the "Logic count error", the **“Critical error”** is generated.
407 407  )))
408 408  
409 409  === Short circuit ===
... ... @@ -433,11 +433,6 @@
433 433  
434 434  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
435 435  
436 -(% class="box infomessage" %)
437 -(((
438 -If there is the "Short circuit" error, **charging **contactor opens (if the “Switch off the charging contactor on error” flag is set) and **discharging **contactor opens (if the “Switch off the discharging contactor on error flag” is set).
439 -)))
440 -
441 441  === High contactor temperature ===
442 442  
443 443  The BMS Main 3 device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X5 connector is used.
... ... @@ -466,11 +466,6 @@
466 466  
467 467  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
468 468  
469 -(% class="box infomessage" %)
470 -(((
471 -If there is the "High contactor temperature" error, **charging **contactor opens (if the “Switch off the charging contactor on error” flag is set) and **discharging **contactor opens (if the “Switch off the discharging contactor on error” flag is set).
472 -)))
473 -
474 474  === Current sensor ===
475 475  
476 476  The BMS Main 3 device checks the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
... ... @@ -502,7 +502,7 @@
502 502  
503 503  (% class="box warningmessage" %)
504 504  (((
505 -If there is the “Current sensor error”, the **“Critical error” **is generated and **all relays open.**
489 +If there is the “Current sensor error”, the **“Critical error” **is generated.
506 506  )))
507 507  
508 508  === Power switch ===
... ... @@ -520,13 +520,9 @@
520 520  
521 521  (% class="box warningmessage" %)
522 522  (((
523 -If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
507 +If there is the "Power switch error", the **“Critical error” **is generated.
524 524  )))
525 525  
526 -=== Power fault ===
527 -
528 -TBA
529 -
530 530  === Charge contactor cycles ===
531 531  
532 532  The BMS Main 3 device protects the charging contactor against frequent switching.
... ... @@ -554,11 +554,6 @@
554 554  
555 555  * the “Delay before clearing the error” time has passed since the error was generated.
556 556  
557 -(% class="box infomessage" %)
558 -(((
559 -If there is the "CH contactor cycles error" error, the **charging **contactor opens.
560 -)))
561 -
562 562  === Discharge contactor cycles ===
563 563  
564 564  The BMS Main 3 device protects the discharging contactor against frequent switching.
... ... @@ -586,11 +586,6 @@
586 586  
587 587  * the “Delay before clearing the error” time has passed since the error was generated.
588 588  
589 -(% class="box infomessage" %)
590 -(((
591 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
592 -)))
593 -
594 594  === Temperature sensors ===
595 595  
596 596  The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
... ... @@ -610,7 +610,7 @@
610 610  
611 611  (% class="box warningmessage" %)
612 612  (((
613 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**
583 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated.
614 614  )))
615 615  
616 616  === WDT reset ===
... ... @@ -633,7 +633,7 @@
633 633  
634 634  (% class="box warningmessage" %)
635 635  (((
636 -If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**
606 +If there is the "WDT reset" error, the **“Critical error” **is generated.
637 637  )))
638 638  
639 639  === Unallowable charging ===
... ... @@ -661,11 +661,6 @@
661 661  
662 662  * the battery current is zero during the “Delay before clearing the error” time.
663 663  
664 -(% class="box infomessage" %)
665 -(((
666 -If there is the "Unallowable charging" error, the **discharging **contactor opens.
667 -)))
668 -
669 669  === Stuck contactor ===
670 670  
671 671  The BMS Main 3 device protects contactors against sticking.
... ... @@ -689,7 +689,7 @@
689 689  
690 690  (% class="box warningmessage" %)
691 691  (((
692 -If there is the “Stuck contactor” error, the **“Critical error” **is generated and **all relays open.**
657 +If there is the “Stuck contactor” error, the **“Critical error” **is generated.
693 693  )))
694 694  
695 695  === Contactor feedback ===
... ... @@ -713,7 +713,7 @@
713 713  
714 714  (% class="box warningmessage" %)
715 715  (((
716 -If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
681 +If there is the “Contactor feedback” error, the **“Critical error” **is generated.
717 717  )))
718 718  
719 719  === Insulation ===
... ... @@ -739,7 +739,7 @@
739 739  
740 740  (% class="box warningmessage" %)
741 741  (((
742 -If there is the “Insulation fault”, the **“Critical error”** is generated and **all relays open.**
707 +If there is the “Insulation fault”, the **“Critical error”** is generated.
743 743  )))
744 744  
745 745  === HVIL ===
... ... @@ -763,7 +763,7 @@
763 763  
764 764  (% class="box warningmessage" %)
765 765  (((
766 -If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.**
731 +If there is the “HVIL error”, the **“Critical error”** is generated.
767 767  )))
768 768  
769 769  === Critical error ===
... ... @@ -801,16 +801,11 @@
801 801  * “Main contactor feedback error”;
802 802  * “High voltage fault”;
803 803  * “Power switch error”;
804 -* “HVIL error”l
769 +* “HVIL error”;
805 805  * “Power fault”.
806 806  
807 807  The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
808 808  
809 -(% class="box infomessage" %)
810 -(((
811 -If there is the “Critical error”, **all **contactors open.
812 -)))
813 -
814 814  === General error ===
815 815  
816 816  To change the general error parameters, select the "Protections → Critical error" section:
... ... @@ -831,5 +831,5 @@
831 831  
832 832  (% class="box infomessage" %)
833 833  (((
834 -The state of the “General error” can be output to a discrete output or a power switch.
794 +The state of the “General error” can be output to a discrete output or to a power switch.
835 835  )))
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