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Changes for page 3.4 Protections

Last modified by Admin on 2025/11/10 11:52
From version 49.2
edited by Admin
on 2025/11/10 11:52
Change comment: There is no comment for this version
To version 16.45
edited by Admin
on 2024/12/26 15:10
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -6,12 +6,6 @@
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 errormessage" %)
10 -(((
11 -**Attention!**
12 -Behavior of contactors at different errors is configured in **corresponding contactor settings**!
13 -)))
14 -
15 15  === Overcurrent ===
16 16  
17 17  The BMS Main 3 device performs the overcurrent protection depending on current sensor values.
... ... @@ -43,11 +43,16 @@
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) or zero, and its modulo value is less than the “Tolerant discharging current” value for the “Delay before clearing the error” time.
45 45  
40 +(% class="box infomessage" %)
41 +(((
42 +If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43 +)))
44 +
46 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>>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.
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.
49 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.
49 +Current difference is configured by two regions separated by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
51 51  
52 52  To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
53 53  
... ... @@ -54,33 +54,18 @@
54 54  [[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section:
55 55  
56 56  * Enable – a flag to enable the protection;
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 difference, 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.
56 +* Threshold to switch from Region 1 to Region 2
57 +*
63 63  
59 +
64 64  === Discharge current limit ===
65 65  
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.
62 +The BMS Main 3 device can check if the charging 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.
67 67  
68 -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.
64 +Current difference is configured by two regions separated by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
69 69  
70 -To change the overcurrent protection of the battery, select the "Protections → Discharge current limit" section:
66 +To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
71 71  
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 difference, 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 -
84 84  === Undervoltage ===
85 85  
86 86  The BMS Main 3 device implements battery protection from too low voltage on the cells.
... ... @@ -94,7 +94,7 @@
94 94  * Enable – a flag to enable the protection;
95 95  * Minimum cell voltage, V;
96 96  * Tolerant cell voltage, V;
97 -* Check the open circuit voltage instead of the actual voltage – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
81 +* 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;
98 98  * Delay before setting the error, millisecond;
99 99  * Delay before clearing the error, second;
100 100  * Lock – a flag to block the error until the device is restarted.
... ... @@ -109,6 +109,11 @@
109 109  
110 110  * 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.
111 111  
96 +(% class="box infomessage" %)
97 +(((
98 +If there is the "Undervoltage" error, the **discharging **contactor opens.
99 +)))
100 +
112 112  === Overvoltage ===
113 113  
114 114  The BMS Main 3 device implements battery protection from too high voltage on the cells.
... ... @@ -122,7 +122,7 @@
122 122  * Enable – a flag to enable the protection;
123 123  * Maximum cell voltage, V;
124 124  * Tolerant cell voltage, V;
125 -* Check the open circuit voltage instead of the actual voltage – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
114 +* 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;
126 126  * Delay before setting the error, millisecond;
127 127  * Delay before clearing the error, second;
128 128  * Lock – a flag to block the error until the device is restarted.
... ... @@ -137,31 +137,11 @@
137 137  
138 138  * 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.
139 139  
140 -=== Cell imbalance ===
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 +)))
141 141  
142 -The BMS Main 3 device implements battery protection from too much cell imbalance. If balancing algorithm is not enough to compensate battery imbalance, then imbalance protection generates an error when imbalance is above estimated threshold.
143 -
144 -To change the battery protection parameters from cell imbalance, select the "Protections → Cell imbalance" section:
145 -
146 -[[image:1760437465709-702.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="133" width="800"]]In this section:
147 -
148 -* Enable – a flag to enable the protection;
149 -* Maximum cell imbalance, V;
150 -* Tolerant cell imbalance, V;
151 -* Delay before setting the error, millisecond;
152 -* Delay before clearing the error, second;
153 -* Lock – a flag to block the error until the device is restarted.
154 -
155 -As a result of the operation of the battery protection from cell imbalance, the "Cell imbalance” error is generated.
156 -
157 -Error generation conditions:
158 -
159 -* the voltage difference between the most charged cell and the least charged cell is more than the “Maximum cell imbalance” value for the “Delay before setting the error” time.
160 -
161 -Conditions for removing the error:
162 -
163 -* the voltage difference between the most charged cell and the least charged cell is less than the “Tolerant cell imbalance” value for the “Delay before clearing the error” time.
164 -
165 165  === Low temperature ===
166 166  
167 167  The BMS Main 3 device implements battery protection from too low temperature.
... ... @@ -191,6 +191,12 @@
191 191  
192 192  * 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.
193 193  
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 +
194 194  === High temperature ===
195 195  
196 196  The BMS Main 3 device implements battery protection from too high temperature.
... ... @@ -220,6 +220,12 @@
220 220  
221 221  * 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.
222 222  
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 +
223 223  === Battery cover ===
224 224  
225 225  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -245,7 +245,7 @@
245 245  
246 246  (% class="box warningmessage" %)
247 247  (((
248 -If there is the "Battery cover error", the **“Critical error” **is generated**.**
229 +If there is the "Battery cover error", the **“Critical error” **is generated **and all contactors open.**
249 249  )))
250 250  
251 251  === High humidity ===
... ... @@ -307,9 +307,9 @@
307 307  
308 308  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
309 309  
310 -(% class="box warningmessage" %)
291 +(% class="box infomessage" %)
311 311  (((
312 -If there is the “Water” error, the **“Critical error”** is generated.
293 +If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.
313 313  )))
314 314  
315 315  === Logic high temperature ===
... ... @@ -346,14 +346,11 @@
346 346  
347 347  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
348 348  
349 -[[image:1755871522789-489.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
330 +[[image:1733328399416-818.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="86" width="800"]]
350 350  
351 -
352 352  In this section:
353 353  
354 354  * Enable – a flag to enable the protection;
355 -* Delay before setting the error, second;
356 -* Delay before clearing the error, second;
357 357  * Lock – lock the error until the device is reset.
358 358  
359 359  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
... ... @@ -368,7 +368,7 @@
368 368  
369 369  (% class="box warningmessage" %)
370 370  (((
371 -If there is the "Logic offline" error, the **“Critical error” **is generated**.**
349 +If there is the "Logic offline" error, the **“Critical error” **is generated and **all relays open.**
372 372  )))
373 373  
374 374  === Cell count ===
... ... @@ -397,43 +397,14 @@
397 397  
398 398  (% class="box warningmessage" %)
399 399  (((
400 -If there is the "Cell count error", the **“Critical error” **is generated**.**
378 +If there is the "Cell count error", the **“Critical error” **is generated and **all relays open.**
401 401  )))
402 402  
403 -=== Temperature sensor count ===
404 -
405 -To change the protection parameters from the mismatch of the number of temperature sensors to the set value, select the "Protections → Temperature sensor count" section:
406 -
407 -[[image:1755871582533-550.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
408 -
409 -In this section:
410 -
411 -* Enable – a flag to enable the protection;
412 -* Number of cells – a number of temperature sensors connected to the BMS;
413 -* Delay before setting the error, millisecond;
414 -* Delay before clearing the error, second;
415 -* Lock – a flag to block the error until the device is restarted.
416 -
417 -As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensor count error" is generated.
418 -
419 -Error generation conditions:
420 -
421 -* the number of temperature sensors connected to the BMS is **not equal** to the “Number of temperature sensors” value during the “Delay before setting the error” time.
422 -
423 -Conditions for removing the error:
424 -
425 -* the number of temperature sensors connected to the BMS is **equal** to the “Number of temperature sensors” value during the “Delay before clearing the error” time.
426 -
427 -(% class="box warningmessage" %)
428 -(((
429 -If there is the "T-sensor count error", the **“Critical error” **is generated**.**
430 -)))
431 -
432 432  === Logic count ===
433 433  
434 434  To change the protection parameters from the mismatch of the number of BMS Logic devices to the set value, select the "Protections → Logic count” section:
435 435  
436 -[[image:1762425434368-516.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="125" width="800"]]
385 +[[image:1733328415732-163.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]
437 437  
438 438  In this section:
439 439  
... ... @@ -440,8 +440,6 @@
440 440  * Enable – a flag to enable the protection;
441 441  * Logic count – a number of BMS Logic devices connected to the BMS Main;
442 442  * Scan fast – a flag to scan BMS Logic devices fast (devices with addresses from 1 to “Logic count” are scanned; this mode reduces BMS system startup time);
443 -* Delay before setting the error – a delay before setting the error //during initialization//, millisecond;
444 -* Delay before clearing the error– a delay before clearing the error //during initialization//, second;
445 445  * Lock – lock the error until the device is reset.
446 446  
447 447  As a result of the operation of the protection from the mismatch of the number of BMS Logic devices, the "Logic count error" is generated.
... ... @@ -448,17 +448,15 @@
448 448  
449 449  Error generation conditions:
450 450  
451 -* during the initialization BMS Main 3 have not found required number of BMS Logic devices during the "Delay before setting the error" time;
452 -* after the initialization the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
398 +* the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
453 453  
454 454  Conditions for removing the error:
455 455  
456 -* during the initialization BMS Main 3 have found required number of BMS Logic devices and the "Delay before setting the error" time has passed;
457 -* after the initialization the number of BMS Logic devices connected to the BMS Main is **equal** to the “Logic count” value.
402 +* the number of BMS Logic devices connected to the BMS Main is **equal** to the “Logic count” value.
458 458  
459 459  (% class="box warningmessage" %)
460 460  (((
461 -If there is the "Logic count error", the **“Critical error”** is generated.
406 +If there is the "Logic count error", the **“Critical error”** is generated and **all relays open.**
462 462  )))
463 463  
464 464  === Short circuit ===
... ... @@ -488,6 +488,11 @@
488 488  
489 489  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
490 490  
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 +
491 491  === High contactor temperature ===
492 492  
493 493  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.
... ... @@ -516,6 +516,11 @@
516 516  
517 517  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
518 518  
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 +
519 519  === Current sensor ===
520 520  
521 521  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.
... ... @@ -547,7 +547,7 @@
547 547  
548 548  (% class="box warningmessage" %)
549 549  (((
550 -If there is the “Current sensor error”, the **“Critical error” **is generated.
505 +If there is the “Current sensor error”, the **“Critical error” **is generated and **all relays open.**
551 551  )))
552 552  
553 553  === Power switch ===
... ... @@ -565,39 +565,13 @@
565 565  
566 566  (% class="box warningmessage" %)
567 567  (((
568 -If there is the "Power switch error", the **“Critical error” **is generated.
523 +If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
569 569  )))
570 570  
571 571  === Power fault ===
572 572  
573 -BMS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
528 +TBA
574 574  
575 -(% class="box infomessage" %)
576 -(((
577 -**Note:** this error can be configured only under** "Service" account**.
578 -)))
579 -
580 -To change the parameters of the power fault error, select the "Protections → Power fault" section:
581 -
582 -[[image:1739284154410-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]
583 -
584 -In this section:
585 -
586 -* Enable – a flag to enable the protection;
587 -* Delay before setting the error, millisecond;
588 -* Time to keep power off, millisecond;
589 -* Delay before clearing the error, millisecond;
590 -* Lock – a flag to block the error until the device is restarted.
591 -
592 -The “Power fault” occurs when the device detects a shortage or high power consumption in power supplies mentioned above. After that BMS turns off the corresponding power supply for "Time to keep power off", then it tries to enable power again.
593 -
594 -Error is removed when the power consumption is normal during “Delay before clearing the error” time.
595 -
596 -(% class="box warningmessage" %)
597 -(((
598 -If there is the "Power fault", the **“Critical error” **is generated.
599 -)))
600 -
601 601  === Charge contactor cycles ===
602 602  
603 603  The BMS Main 3 device protects the charging contactor against frequent switching.
... ... @@ -625,6 +625,11 @@
625 625  
626 626  * the “Delay before clearing the error” time has passed since the error was generated.
627 627  
557 +(% class="box infomessage" %)
558 +(((
559 +If there is the "CH contactor cycles error" error, the **charging **contactor opens.
560 +)))
561 +
628 628  === Discharge contactor cycles ===
629 629  
630 630  The BMS Main 3 device protects the discharging contactor against frequent switching.
... ... @@ -652,6 +652,11 @@
652 652  
653 653  * the “Delay before clearing the error” time has passed since the error was generated.
654 654  
589 +(% class="box infomessage" %)
590 +(((
591 +If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
592 +)))
593 +
655 655  === Temperature sensors ===
656 656  
657 657  The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
... ... @@ -671,7 +671,7 @@
671 671  
672 672  (% class="box warningmessage" %)
673 673  (((
674 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated.
613 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**
675 675  )))
676 676  
677 677  === WDT reset ===
... ... @@ -694,7 +694,7 @@
694 694  
695 695  (% class="box warningmessage" %)
696 696  (((
697 -If there is the "WDT reset" error, the **“Critical error” **is generated.
636 +If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**
698 698  )))
699 699  
700 700  === Unallowable charging ===
... ... @@ -722,6 +722,11 @@
722 722  
723 723  * the battery current is zero during the “Delay before clearing the error” time.
724 724  
664 +(% class="box infomessage" %)
665 +(((
666 +If there is the "Unallowable charging" error, the **discharging **contactor opens.
667 +)))
668 +
725 725  === Stuck contactor ===
726 726  
727 727  The BMS Main 3 device protects contactors against sticking.
... ... @@ -745,7 +745,7 @@
745 745  
746 746  (% class="box warningmessage" %)
747 747  (((
748 -If there is the “Stuck contactor” error, the **“Critical error” **is generated.
692 +If there is the “Stuck contactor” error, the **“Critical error” **is generated and **all relays open.**
749 749  )))
750 750  
751 751  === Contactor feedback ===
... ... @@ -769,7 +769,7 @@
769 769  
770 770  (% class="box warningmessage" %)
771 771  (((
772 -If there is the “Contactor feedback” error, the **“Critical error” **is generated.
716 +If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
773 773  )))
774 774  
775 775  === Insulation ===
... ... @@ -795,7 +795,7 @@
795 795  
796 796  (% class="box warningmessage" %)
797 797  (((
798 -If there is the “Insulation fault”, the **“Critical error”** is generated.
742 +If there is the “Insulation fault”, the **“Critical error”** is generated and **all relays open.**
799 799  )))
800 800  
801 801  === HVIL ===
... ... @@ -815,66 +815,58 @@
815 815  * Source is ON: Upper current limit, A;
816 816  * Lock – a flag to block the error until the device is restarted.
817 817  
818 -If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
762 +If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated. Error clears if interlock loop is being restored.
819 819  
820 -Error clears if interlock loop is being restored.
821 -
822 822  (% class="box warningmessage" %)
823 823  (((
824 -If there is the “HVIL error”, the **“Critical error”** is generated.
766 +If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.**
825 825  )))
826 826  
827 -=== Battery voltage ===
769 +=== Critical error ===
828 828  
829 -The BMS Main 3 allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
771 +To change the critical error parameters, select the "Protections → Critical error" section:
830 830  
831 -To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
773 +[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
832 832  
833 -[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
834 -
835 835  In this section:
836 836  
837 837  * Enable – a flag to enable the protection;
838 -* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
839 -* Delay before setting the error, second;
778 +* Delay before setting the error, millisecond;
840 840  * Delay before clearing the error, second;
841 841  * Lock – a flag to block the error until the device is restarted.
842 842  
843 -If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
782 +The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
844 844  
845 -Error generation conditions:
784 +* “Battery cover error”;
785 +* “Water”;
786 +* “Logic offline”;
787 +* “Cell count error”;
788 +* “ADC error”;
789 +* “Current sensor error”;
790 +* “Shunt offline”;
791 +* “Shunt error”;
792 +* “WDT reset”
793 +* “No temp. sensors”;
794 +* “Temperature sensor shorted”;
795 +* “Stuck contactor”;
796 +* “CH contactor feedback error”;
797 +* “DCH contactor feedback error”;
798 +* “Insulation fault”;
799 +* “PCH contactor feedback error”;
800 +* “CH/DCH contactor feedback error”;
801 +* “Main contactor feedback error”;
802 +* “High voltage fault”;
803 +* “Power switch error”;
804 +* “HVIL error”l
805 +* “Power fault”.
846 846  
847 -* difference between sum of all cell voltages and voltage measured before the contactors is **more **than "Abnormal voltage difference" value during "Delay before setting the error" time.
807 +The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
848 848  
849 -Conditions for removing the error:
850 -
851 -* difference between sum of all cell voltages and voltage measured before the contactors is **less **than "Abnormal voltage difference" value during "Delay before clearing the error" time.
852 -
853 -(% class="box warningmessage" %)
809 +(% class="box infomessage" %)
854 854  (((
855 -If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
811 +If there is the “Critical error”, **all **contactors open.
856 856  )))
857 857  
858 -=== Critical error ===
859 -
860 -Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
861 -
862 -To change the critical error parameters, select the "Protections → Critical error" section:
863 -
864 -[[image:1762775547945-129.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="117" width="800"]]
865 -
866 -In this section:
867 -
868 -* Enable – a flag to enable the protection;
869 -* Delay before setting the error, millisecond;
870 -* Delay before clearing the error, second;
871 -* Errors 1, 2 to to ignore when setting the critical error;
872 -* Lock – a flag to block the error until the device is restarted.
873 -
874 -The "Critical error" signal is generated if at least one of the critical errors (see [[Errors>>doc:Battery management systems.Additional information.1\. Battery controllers\: signals and errors.WebHome||anchor="HErrors"]]) is generated during the “Delay before setting the error” time.
875 -
876 -The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
877 -
878 878  === General error ===
879 879  
880 880  To change the general error parameters, select the "Protections → Critical error" section:
... ... @@ -889,11 +889,11 @@
889 889  * Lock – a flag to block the error until the device is restarted;
890 890  * Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
891 891  
892 -The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
828 +The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
893 893  
894 894  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
895 895  
896 896  (% class="box infomessage" %)
897 897  (((
898 -The state of the “General error” can be assigned to a discrete output or to a power switch.
834 +The state of the “General error” can be output to a discrete output or a power switch.
899 899  )))
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