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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:19
From version 12.2
edited by Admin
on 2024/12/26 14:52
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To version 4.2
edited by Admin
on 2024/12/09 17:26
Change comment: Update document after refactoring.

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1 -Battery management systems.BMS Main 3.3\. Configuration.WebHome
1 +drafts.BMS Main 3.3\. Settings.WebHome
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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 -= Configuration =
2 += Settings =
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 ==
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12 12  
13 13  To change the overcurrent protection of the battery, select the "Protections → Overcurrent" section:
14 14  
15 -[[image:1735224601506-488.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
15 +[[image:1733328382376-958.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
16 16  
17 17  In this section:
18 18  
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42 42  If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43 43  )))
44 44  
45 -=== Charge current limit ===
46 -
47 -TBA
48 -
49 -=== Discharge current limit ===
50 -
51 -TBA
52 -
53 53  === Undervoltage ===
54 54  
55 55  The BMS Main 3 device implements battery protection from too low voltage on the cells.
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56 56  
57 57  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
58 58  
59 -[[image:1735224224155-829.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
51 +[[image:1733328382380-760.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="127" width="800"]]
60 60  
61 61  In this section:
62 62  
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63 63  * Enable – a flag to enable the protection;
64 64  * Minimum cell voltage, V;
65 65  * Tolerant cell voltage, V;
66 -* 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;
67 67  * Delay before setting the error, millisecond;
68 68  * Delay before clearing the error, second;
69 69  * Lock – a flag to block the error until the device is restarted.
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89 89  
90 90  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
91 91  
92 -[[image:1735224377252-473.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="114" width="800"]]
83 +[[image:1733328382382-607.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
93 93  
94 94  In this section:
95 95  
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96 96  * Enable – a flag to enable the protection;
97 97  * Maximum 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;
92 +* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Overvoltage" error is generated;
102 102  * Lock – a flag to block the error until the device is restarted.
103 103  
104 104  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
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278 278  If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.
279 279  )))
280 280  
281 -=== Logic high temperature ===
272 +=== High Logic temperature ===
282 282  
283 283  To change the overheating protection parameters of BMS Logic devices, select the "Protections → High Logic temperature" section:
284 284  
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397 397  
398 398  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
399 399  
400 -[[image:1735224667621-969.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="800"]]
391 +[[image:1733328415733-309.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="210" width="800"]]
401 401  
402 402  In this section:
403 403  
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405 405  ** Enable – a flag to enable the protection;
406 406  ** Maximum current, A;
407 407  ** 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;
408 408  * Delay before clearing the error, second;
409 409  * Lock – a flag to block the error until the device is restarted.
410 410  
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429 429  
430 430  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
431 431  
432 -[[image:1735224706573-347.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
425 +[[image:1733328415734-986.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
433 433  
434 434  In this section:
435 435  
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438 438  * Maximum contactor temperature, °C;
439 439  * Tolerant contactor temperature, °C;
440 440  * 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;
441 441  * Delay before clearing the error, second;
442 442  * Lock – a flag to block the error until the device is restarted.
443 443  
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508 508  If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
509 509  )))
510 510  
511 -=== Power fault ===
512 -
513 -TBA
514 -
515 515  === Charge contactor cycles ===
516 516  
517 517  The BMS Main 3 device protects the charging contactor against frequent switching.
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651 651  If there is the "Unallowable charging" error, the **discharging **contactor opens.
652 652  )))
653 653  
654 -=== Stuck contactor ===
645 +=== ​​​​​​​Stuck contactor ===
655 655  
656 656  The BMS Main 3 device protects contactors against sticking.
657 657  
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701 701  If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
702 702  )))
703 703  
704 -=== Insulation ===
695 +=== ​​​​​​​Precharge ===
705 705  
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 +
706 706  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.
707 707  
708 708  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
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792 792  If there is the “Critical error”, **all **contactors open.
793 793  )))
794 794  
795 -=== General error ===
808 +=== ​​​​​​​General error ===
796 796  
797 797  To change the general error parameters, select the "Protections → Critical error" section:
798 798  
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