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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:19
From version 8.3
edited by Admin
on 2024/12/26 14:44
Change comment: There is no comment for this version
To version 4.3
edited by Admin
on 2024/12/11 11:33
Change comment: Update document after refactoring.

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1 -Battery management systems.BMS Main 3.3\. Configuration.WebHome
1 +Battery management systems.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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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 protection;;
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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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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512 512  If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
513 513  )))
514 514  
515 -=== Power fault ===
516 -
517 -TBA
518 -
519 519  === Charge contactor cycles ===
520 520  
521 521  The BMS Main 3 device protects the charging contactor against frequent switching.
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655 655  If there is the "Unallowable charging" error, the **discharging **contactor opens.
656 656  )))
657 657  
658 -=== Stuck contactor ===
645 +=== ​​​​​​​Stuck contactor ===
659 659  
660 660  The BMS Main 3 device protects contactors against sticking.
661 661  
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705 705  If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
706 706  )))
707 707  
708 -=== Insulation ===
695 +=== ​​​​​​​Precharge ===
709 709  
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 +
710 710  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.
711 711  
712 712  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
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796 796  If there is the “Critical error”, **all **contactors open.
797 797  )))
798 798  
799 -=== General error ===
808 +=== ​​​​​​​General error ===
800 800  
801 801  To change the general error parameters, select the "Protections → Critical error" section:
802 802  
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