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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:19
From version 6.1
edited by Admin
on 2024/12/24 18:36
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
Content
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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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642 642  If there is the "Unallowable charging" error, the **discharging **contactor opens.
643 643  )))
644 644  
645 -=== Stuck contactor ===
645 +=== ​​​​​​​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 -=== Insulation ===
695 +=== ​​​​​​​Precharge ===
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 +
697 697  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.
698 698  
699 699  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
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783 783  If there is the “Critical error”, **all **contactors open.
784 784  )))
785 785  
786 -=== General error ===
808 +=== ​​​​​​​General error ===
787 787  
788 788  To change the general error parameters, select the "Protections → Critical error" section:
789 789