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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:19
From version 4.1
edited by Admin
on 2024/12/04 16:35
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To version 8.4
edited by Admin
on 2024/12/26 14:45
Change comment: There is no comment for this version

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1 -drafts.bms-main-3.3\. Settings.WebHome
1 +Battery management systems.BMS Main 3.3\. Configuration.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 -= 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 ==
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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 +
45 45  === Undervoltage ===
46 46  
47 47  The BMS Main 3 device implements battery protection from too low voltage on the cells.
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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"]]
59 +[[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  
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55 55  * Enable – a flag to enable the protection;
56 56  * Minimum cell voltage, V;
57 57  * 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;
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.
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87 87  * Enable – a flag to enable the protection;
88 88  * Maximum cell voltage, V;
89 89  * 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;
90 90  * Delay before setting the error, millisecond;
91 91  * Delay before clearing the error, second;
92 92  * Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Overvoltage" error is generated;
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269 269  If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.
270 270  )))
271 271  
272 -=== High Logic temperature ===
282 +=== 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  
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503 503  If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
504 504  )))
505 505  
516 +=== Power fault ===
517 +
518 +TBA
519 +
506 506  === Charge contactor cycles ===
507 507  
508 508  The BMS Main 3 device protects the charging contactor against frequent switching.
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642 642  If there is the "Unallowable charging" error, the **discharging **contactor opens.
643 643  )))
644 644  
645 -=== ​​​​​​​Stuck contactor ===
659 +=== Stuck contactor ===
646 646  
647 647  The BMS Main 3 device protects contactors against sticking.
648 648  
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692 692  If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
693 693  )))
694 694  
695 -=== ​​​​​​​Precharge ===
709 +=== 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:
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805 805  If there is the “Critical error”, **all **contactors open.
806 806  )))
807 807  
808 -=== ​​​​​​​General error ===
800 +=== General error ===
809 809  
810 810  To change the general error parameters, select the "Protections → Critical error" section:
811 811  
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