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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 2.1
edited by Admin
on 2024/12/04 16:33
Change comment: There is no comment for this version

Summary

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1 -Battery management systems.BMS Main 3.3\. Configuration.WebHome
1 +drafts.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 += SettingsThe 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.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. =
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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294 294  
295 295  * a BMS Logic device temperature is less than the “Tolerant temperature” value.
296 296  
297 -(% class="box infomessage" %)
297 +(% class="box warningmessage" %)
298 298  (((
299 -Cell balancing is disabled on Logic devices with high temperature.
299 +Overheated Logic devices do not balance cells.
300 300  )))
301 301  
302 302  === Logic offline ===
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535 535  If there is the "CH contactor cycles error" error, the **charging **contactor opens.
536 536  )))
537 537  
538 -=== Discharge contactor cycles ===
538 +=== ​​​​​​​Discharge contactor cycles ===
539 539  
540 540  The BMS Main 3 device protects the discharging contactor against frequent switching.
541 541  
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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.**
589 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**​​​​​​​
590 590  )))
591 591  
592 592  === WDT reset ===
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612 612  If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**
613 613  )))
614 614  
615 -=== Unallowable charging ===
615 +=== ​​​​​​​Unallowable charging ===
616 616  
617 617  The BMS can detect that the battery is charging through the discharging circuit and protectively open the discharging contactor to prevent unallowable battery operation.
618 618  
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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