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Changes for page 3.4 Protections

Last modified by Admin on 2025/08/22 14:36
From version 4.1
edited by Admin
on 2024/12/04 16:35
Change comment: There is no comment for this version
To version 40.1
edited by Admin
on 2025/08/22 14:36
Change comment: There is no comment for this version

Summary

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Parent
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1 -drafts.bms-main-3.3\. Settings.WebHome
1 +Battery management systems.BMS Main 3.3\. Configuration.WebHome
Content
... ... @@ -1,5 +1,5 @@
1 1  (% data-numbered-headings-start="3" style="--numbered-headings-start: 2;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
2 -= Settings =
2 += Configuration =
3 3  
4 4  (% data-numbered-headings-start="4" style="--numbered-headings-start: 3;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5 5  == Protections ==
... ... @@ -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 errormessage" %)
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.
... ... @@ -12,7 +12,7 @@
12 12  
13 13  To change the overcurrent protection of the battery, select the "Protections → Overcurrent" section:
14 14  
15 -[[image:1733328382376-958.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
21 +[[image:1735224601506-488.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
16 16  
17 17  In this section:
18 18  
... ... @@ -37,11 +37,44 @@
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 -)))
46 +=== Charge current limit ===
44 44  
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.
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:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section:
55 +
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.
63 +
64 +=== Discharge current limit ===
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.
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.
69 +
70 +To change the overcurrent protection of the battery, select the "Protections → Discharge current limit" section:
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 +
45 45  === Undervoltage ===
46 46  
47 47  The BMS Main 3 device implements battery protection from too low voltage on the cells.
... ... @@ -48,7 +48,7 @@
48 48  
49 49  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
50 50  
51 -[[image:1733328382380-760.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="127" width="800"]]
90 +[[image:1735224224155-829.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
52 52  
53 53  In this section:
54 54  
... ... @@ -55,6 +55,7 @@
55 55  * Enable – a flag to enable the protection;
56 56  * Minimum cell voltage, V;
57 57  * 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;
58 58  * Delay before setting the error, millisecond;
59 59  * Delay before clearing the error, second;
60 60  * Lock – a flag to block the error until the device is restarted.
... ... @@ -69,11 +69,6 @@
69 69  
70 70  * 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.
71 71  
72 -(% class="box infomessage" %)
73 -(((
74 -If there is the "Undervoltage" error, the **discharging **contactor opens.
75 -)))
76 -
77 77  === Overvoltage ===
78 78  
79 79  The BMS Main 3 device implements battery protection from too high voltage on the cells.
... ... @@ -80,7 +80,7 @@
80 80  
81 81  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
82 82  
83 -[[image:1733328382382-607.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
118 +[[image:1735224377252-473.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="114" width="800"]]
84 84  
85 85  In this section:
86 86  
... ... @@ -87,9 +87,9 @@
87 87  * Enable – a flag to enable the protection;
88 88  * Maximum cell voltage, V;
89 89  * 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;
90 90  * Delay before setting the error, millisecond;
91 91  * Delay before clearing the error, second;
92 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Overvoltage" error is generated;
93 93  * Lock – a flag to block the error until the device is restarted.
94 94  
95 95  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
... ... @@ -102,11 +102,6 @@
102 102  
103 103  * 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.
104 104  
105 -(% class="box infomessage" %)
106 -(((
107 -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).
108 -)))
109 -
110 110  === Low temperature ===
111 111  
112 112  The BMS Main 3 device implements battery protection from too low temperature.
... ... @@ -136,12 +136,6 @@
136 136  
137 137  * 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.
138 138  
139 -(% class="box infomessage" %)
140 -(((
141 -If there is the "Low temperature (CH)" error, the **charging **contactor opens.
142 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
143 -)))
144 -
145 145  === High temperature ===
146 146  
147 147  The BMS Main 3 device implements battery protection from too high temperature.
... ... @@ -171,12 +171,6 @@
171 171  
172 172  * 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.
173 173  
174 -(% class="box infomessage" %)
175 -(((
176 -If there is the "High temperature (CH)" error, the **charging **contactor opens.
177 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
178 -)))
179 -
180 180  === Battery cover ===
181 181  
182 182  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -202,7 +202,7 @@
202 202  
203 203  (% class="box warningmessage" %)
204 204  (((
205 -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**.**
206 206  )))
207 207  
208 208  === High humidity ===
... ... @@ -264,12 +264,12 @@
264 264  
265 265  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
266 266  
267 -(% class="box infomessage" %)
285 +(% class="box warningmessage" %)
268 268  (((
269 -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.
270 270  )))
271 271  
272 -=== High Logic temperature ===
290 +=== Logic high temperature ===
273 273  
274 274  To change the overheating protection parameters of BMS Logic devices, select the "Protections → High Logic temperature" section:
275 275  
... ... @@ -303,11 +303,14 @@
303 303  
304 304  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
305 305  
306 -[[image:1733328399416-818.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="86" width="800"]]
324 +[[image:1755871522789-489.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
307 307  
326 +
308 308  In this section:
309 309  
310 310  * Enable – a flag to enable the protection;
330 +* Delay before setting the error, second;
331 +* Delay before clearing the error, second;
311 311  * Lock – lock the error until the device is reset.
312 312  
313 313  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
... ... @@ -322,7 +322,7 @@
322 322  
323 323  (% class="box warningmessage" %)
324 324  (((
325 -If there is the "Logic offline" error, the **“Critical error” **is generated and **all relays open.**
346 +If there is the "Logic offline" error, the **“Critical error” **is generated**.**
326 326  )))
327 327  
328 328  === Cell count ===
... ... @@ -351,9 +351,38 @@
351 351  
352 352  (% class="box warningmessage" %)
353 353  (((
354 -If there is the "Cell count error", the **“Critical error” **is generated and **all relays open.**
375 +If there is the "Cell count error", the **“Critical error” **is generated**.**
355 355  )))
356 356  
378 +=== Temperature sensor count ===
379 +
380 +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:
381 +
382 +[[image:1755871582533-550.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
383 +
384 +In this section:
385 +
386 +* Enable – a flag to enable the protection;
387 +* Number of cells – a number of temperature sensors connected to the BMS;
388 +* Delay before setting the error, millisecond;
389 +* Delay before clearing the error, second;
390 +* Lock – a flag to block the error until the device is restarted.
391 +
392 +As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensor count error" is generated.
393 +
394 +Error generation conditions:
395 +
396 +* 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.
397 +
398 +Conditions for removing the error:
399 +
400 +* 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.
401 +
402 +(% class="box warningmessage" %)
403 +(((
404 +If there is the "T-sensor count error", the **“Critical error” **is generated**.**
405 +)))
406 +
357 357  === Logic count ===
358 358  
359 359  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:
... ... @@ -379,7 +379,7 @@
379 379  
380 380  (% class="box warningmessage" %)
381 381  (((
382 -If there is the "Logic count error", the **“Critical error”** is generated and **all relays open.**
432 +If there is the "Logic count error", the **“Critical error”** is generated.
383 383  )))
384 384  
385 385  === Short circuit ===
... ... @@ -388,7 +388,7 @@
388 388  
389 389  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
390 390  
391 -[[image:1733328415733-309.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="210" width="800"]]
441 +[[image:1735224667621-969.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="800"]]
392 392  
393 393  In this section:
394 394  
... ... @@ -396,8 +396,6 @@
396 396  ** Enable – a flag to enable the protection;
397 397  ** Maximum current, A;
398 398  ** Delay before setting the error, second;
399 -* Switch off the charging contactor on error – a flag to open the charging contactor when the "Short circuit" error occurs;
400 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Short circuit" error occurs;
401 401  * Delay before clearing the error, second;
402 402  * Lock – a flag to block the error until the device is restarted.
403 403  
... ... @@ -411,11 +411,6 @@
411 411  
412 412  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
413 413  
414 -(% class="box infomessage" %)
415 -(((
416 -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).
417 -)))
418 -
419 419  === High contactor temperature ===
420 420  
421 421  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.
... ... @@ -422,7 +422,7 @@
422 422  
423 423  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
424 424  
425 -[[image:1733328415734-986.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
468 +[[image:1735224706573-347.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
426 426  
427 427  In this section:
428 428  
... ... @@ -431,8 +431,6 @@
431 431  * Maximum contactor temperature, °C;
432 432  * Tolerant contactor temperature, °C;
433 433  * Delay before setting the error, second;
434 -* Switch off the charging contactor on error – a flag to open the charging contactor when the "High contactor temperature" error occurs;
435 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "High contactor temperature" error occurs;
436 436  * Delay before clearing the error, second;
437 437  * Lock – a flag to block the error until the device is restarted.
438 438  
... ... @@ -446,11 +446,6 @@
446 446  
447 447  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
448 448  
449 -(% class="box infomessage" %)
450 -(((
451 -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).
452 -)))
453 -
454 454  === Current sensor ===
455 455  
456 456  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.
... ... @@ -482,7 +482,7 @@
482 482  
483 483  (% class="box warningmessage" %)
484 484  (((
485 -If there is the “Current sensor error”, the **“Critical error” **is generated and **all relays open.**
521 +If there is the “Current sensor error”, the **“Critical error” **is generated.
486 486  )))
487 487  
488 488  === Power switch ===
... ... @@ -500,9 +500,39 @@
500 500  
501 501  (% class="box warningmessage" %)
502 502  (((
503 -If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
539 +If there is the "Power switch error", the **“Critical error” **is generated.
504 504  )))
505 505  
542 +=== Power fault ===
543 +
544 +BMS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
545 +
546 +(% class="box infomessage" %)
547 +(((
548 +**Note:** this error can be configured only under** "Service" account**.
549 +)))
550 +
551 +To change the parameters of the power fault error, select the "Protections → Power fault" section:
552 +
553 +[[image:1739284154410-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]
554 +
555 +In this section:
556 +
557 +* Enable – a flag to enable the protection;
558 +* Delay before setting the error, millisecond;
559 +* Time to keep power off, millisecond;
560 +* Delay before clearing the error, millisecond;
561 +* Lock – a flag to block the error until the device is restarted.
562 +
563 +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.
564 +
565 +Error is removed when the power consumption is normal during “Delay before clearing the error” time.
566 +
567 +(% class="box warningmessage" %)
568 +(((
569 +If there is the "Power fault", the **“Critical error” **is generated.
570 +)))
571 +
506 506  === Charge contactor cycles ===
507 507  
508 508  The BMS Main 3 device protects the charging contactor against frequent switching.
... ... @@ -530,11 +530,6 @@
530 530  
531 531  * the “Delay before clearing the error” time has passed since the error was generated.
532 532  
533 -(% class="box infomessage" %)
534 -(((
535 -If there is the "CH contactor cycles error" error, the **charging **contactor opens.
536 -)))
537 -
538 538  === Discharge contactor cycles ===
539 539  
540 540  The BMS Main 3 device protects the discharging contactor against frequent switching.
... ... @@ -562,11 +562,6 @@
562 562  
563 563  * the “Delay before clearing the error” time has passed since the error was generated.
564 564  
565 -(% class="box infomessage" %)
566 -(((
567 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
568 -)))
569 -
570 570  === Temperature sensors ===
571 571  
572 572  The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
... ... @@ -586,7 +586,7 @@
586 586  
587 587  (% class="box warningmessage" %)
588 588  (((
589 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**
645 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated.
590 590  )))
591 591  
592 592  === WDT reset ===
... ... @@ -609,7 +609,7 @@
609 609  
610 610  (% class="box warningmessage" %)
611 611  (((
612 -If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**
668 +If there is the "WDT reset" error, the **“Critical error” **is generated.
613 613  )))
614 614  
615 615  === Unallowable charging ===
... ... @@ -637,13 +637,8 @@
637 637  
638 638  * the battery current is zero during the “Delay before clearing the error” time.
639 639  
640 -(% class="box infomessage" %)
641 -(((
642 -If there is the "Unallowable charging" error, the **discharging **contactor opens.
643 -)))
696 +=== Stuck contactor ===
644 644  
645 -=== ​​​​​​​Stuck contactor ===
646 -
647 647  The BMS Main 3 device protects contactors against sticking.
648 648  
649 649  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
... ... @@ -665,7 +665,7 @@
665 665  
666 666  (% class="box warningmessage" %)
667 667  (((
668 -If there is the “Stuck contactor” error, the **“Critical error” **is generated and **all relays open.**
719 +If there is the “Stuck contactor” error, the **“Critical error” **is generated.
669 669  )))
670 670  
671 671  === Contactor feedback ===
... ... @@ -689,33 +689,11 @@
689 689  
690 690  (% class="box warningmessage" %)
691 691  (((
692 -If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
743 +If there is the “Contactor feedback” error, the **“Critical error” **is generated.
693 693  )))
694 694  
695 -=== ​​​​​​​Precharge ===
746 +=== Insulation ===
696 696  
697 -BMS Main 3 device detects errors while pre-charging the load capacity by monitoring the current and voltage difference before and after contactors. To change the pre-charge monitoring parameters, select the "Protections → Precharge" section:
698 -
699 -[[image:1733328487097-648.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
700 -
701 -In this section:
702 -
703 -* Enable – a flag to enable the protection;
704 -* Delay before setting the error, millisecond;
705 -* Delay before clearing the error, second;
706 -* Lock – a flag to block the error until the device is restarted.
707 -
708 -As a result of the protection algorithms the “Precharge error” is generated. Error generation conditions:
709 -
710 -* precharging process cannot be finished (the precharge current does not decrease or voltages before and after contactors are not equal) during the “Delay before setting the error” time.
711 -
712 -(% class="box infomessage" %)
713 -(((
714 -If there is the “Precharge error”, **charging **and **discharging **contactors open.
715 -)))
716 -
717 -=== ​​​​​​​Insulation ===
718 -
719 719  The BMS Main 3 device can detect a physical signal or CAN bus message from an external insulation monitoring device (such as Bender IR155, iso165C, BMD IMD) to monitor the insulation quality.
720 720  
721 721  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
... ... @@ -737,7 +737,7 @@
737 737  
738 738  (% class="box warningmessage" %)
739 739  (((
740 -If there is the “Insulation fault”, the **“Critical error”** is generated and **all relays open.**
769 +If there is the “Insulation fault”, the **“Critical error”** is generated.
741 741  )))
742 742  
743 743  === HVIL ===
... ... @@ -746,70 +746,81 @@
746 746  
747 747  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
748 748  
749 -[[image:1733328487099-371.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="85" width="800"]]
778 +[[image:1735224839441-185.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
750 750  
751 751  In this section:
752 752  
753 753  * Enable – a flag to enable the protection;
783 +* Source is OFF: Lower current limit, A;
784 +* Source is OFF: Upper current limit, A;
785 +* Source is ON: Lower current limit, A;
786 +* Source is ON: Upper current limit, A;
754 754  * Lock – a flag to block the error until the device is restarted.
755 755  
756 -If interlock loop breaks, the “HVIL error” is generated. Error clears if interlock loop is being restored.
789 +If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
757 757  
791 +Error clears if interlock loop is being restored.
792 +
758 758  (% class="box warningmessage" %)
759 759  (((
760 -If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.**
795 +If there is the “HVIL error”, the **“Critical error”** is generated.
761 761  )))
762 762  
763 -=== Critical error ===
798 +=== Battery voltage ===
764 764  
765 -To change the critical error parameters, select the "Protections → Critical error" section:
800 +The BMS Main 3 allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
766 766  
767 -[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
802 +To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
768 768  
804 +[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
805 +
769 769  In this section:
770 770  
771 771  * Enable – a flag to enable the protection;
772 -* Delay before setting the error, millisecond;
809 +* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
810 +* Delay before setting the error, second;
773 773  * Delay before clearing the error, second;
774 774  * Lock – a flag to block the error until the device is restarted.
775 775  
776 -The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
814 +If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
777 777  
778 -* “Battery cover error”;
779 -* “Water”;
780 -* “Logic offline”;
781 -* “Cell count error”;
782 -* “ADC error”;
783 -* “Current sensor error”;
784 -* “Shunt offline”;
785 -* “Shunt error”;
786 -* “WDT reset”
787 -* “No temp. sensors”;
788 -* “Temperature sensor shorted”;
789 -* “Stuck contactor”;
790 -* “CH contactor feedback error”;
791 -* “DCH contactor feedback error”;
792 -* “Insulation fault”;
793 -* “PCH contactor feedback error”;
794 -* “CH/DCH contactor feedback error”;
795 -* “Main contactor feedback error”;
796 -* “High voltage fault”;
797 -* “Power switch error”;
798 -* “HVIL error”l
799 -* “Power fault”.
816 +Error generation conditions:
800 800  
801 -The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
818 +* 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.
802 802  
803 -(% class="box infomessage" %)
820 +Conditions for removing the error:
821 +
822 +* 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.
823 +
824 +(% class="box warningmessage" %)
804 804  (((
805 -If there is the “Critical error”, **all **contactors open.
826 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
806 806  )))
807 807  
808 -=== ​​​​​​​General error ===
829 +=== Critical error ===
809 809  
831 +Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
832 +
833 +To change the critical error parameters, select the "Protections → Critical error" section:
834 +
835 +[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
836 +
837 +In this section:
838 +
839 +* Enable – a flag to enable the protection;
840 +* Delay before setting the error, millisecond;
841 +* Delay before clearing the error, second;
842 +* Lock – a flag to block the error until the device is restarted.
843 +
844 +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.
845 +
846 +The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
847 +
848 +=== General error ===
849 +
810 810  To change the general error parameters, select the "Protections → Critical error" section:
811 811  
812 -[[image:1733328487101-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="262" width="800"]]
852 +[[image:1735224942262-497.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
813 813  
814 814  In this section:
815 815  
... ... @@ -817,13 +817,13 @@
817 817  * Delay before setting the error, millisecond;
818 818  * Delay before clearing the error, second;
819 819  * Lock – a flag to block the error until the device is restarted;
820 -* Check: <error> – a flags to enable check of corresponding errors.
860 +* Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
821 821  
822 -The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
862 +The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
823 823  
824 824  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
825 825  
826 826  (% class="box infomessage" %)
827 827  (((
828 -The state of the “General error” can be output to a discrete output or a power switch.
868 +The state of the “General error” can be assigned to a discrete output or to a power switch.
829 829  )))
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