Changes for page 3.4 Protections
Last modified by Admin on 2025/04/09 12:19
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... ... @@ -6,6 +6,12 @@ 6 6 7 7 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. 8 8 9 +(% class="box errormessage" %) 10 +((( 11 +**Attention!** 12 +Behavior of contactors at different errors is configured in **corresponding contactor settings**! 13 +))) 14 + 9 9 === Overcurrent === 10 10 11 11 The BMS Main 3 device performs the overcurrent protection depending on current sensor values. ... ... @@ -37,19 +37,44 @@ 37 37 * the current is positive (charging) or zero, and its modulo value is less than the “Tolerant charging current” value for the “Delay before clearing the error” time; 38 38 * the current is negative (discharging) or zero, and its modulo value is less than the “Tolerant discharging current” value for the “Delay before clearing the error” time. 39 39 40 -(% class="box infomessage" %) 41 -((( 42 -If there is the "Overcurrent" error, the **charging **and **discharging **contactors open. 43 -))) 44 - 45 45 === Charge current limit === 46 46 47 -TB A48 +The BMS Main 3 device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated. 48 48 50 +Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference. 51 + 52 +To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section: 53 + 54 +[[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section: 55 + 56 +* Enable – a flag to enable the protection; 57 +* Threshold to switch from Region 1 to Region 2 – a current value at which current excess calculation will be switched from absolute to relative difference, A; 58 +* Region 1: Current difference – a value of maximum absolute current difference, A; 59 +* Region 2: Current difference – a value of maximum relative current excess, A; 60 +* Delay before setting the error, millisecond; 61 +* Delay before clearing the error, second; 62 +* Lock – a flag to block the error until the device is restarted. 63 + 49 49 === Discharge current limit === 50 50 51 -TB A66 +The BMS Main 3 device can check if the discharging current exceeds the estimated limit based on the [[Discharge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HDischargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated. 52 52 68 +Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference. 69 + 70 +To change the overcurrent protection of the battery, select the "Protections → Discharge current limit" section: 71 + 72 +[[image:1735225942893-869.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]] 73 + 74 +In this section: 75 + 76 +* Enable – a flag to enable the protection; 77 +* Threshold to switch from Region 1 to Region 2 – a current value at which current excess calculation will be switched from absolute to relative difference, A; 78 +* Region 1: Current difference – a value of maximum absolute current difference, A; 79 +* Region 2: Current difference – a value of maximum relative current excess, A; 80 +* Delay before setting the error, millisecond; 81 +* Delay before clearing the error, second; 82 +* Lock – a flag to block the error until the device is restarted. 83 + 53 53 === Undervoltage === 54 54 55 55 The BMS Main 3 device implements battery protection from too low voltage on the cells. ... ... @@ -78,11 +78,6 @@ 78 78 79 79 * the minimum voltage among all cells of the battery is greater than the “Tolerant cell voltage” value for the “Delay before clearing the error” time. 80 80 81 -(% class="box infomessage" %) 82 -((( 83 -If there is the "Undervoltage" error, the **discharging **contactor opens. 84 -))) 85 - 86 86 === Overvoltage === 87 87 88 88 The BMS Main 3 device implements battery protection from too high voltage on the cells. ... ... @@ -111,11 +111,6 @@ 111 111 112 112 * the maximum voltage among all cells of the battery is less than the “Tolerant cell voltage” value for the “Delay before clearing the error” time. 113 113 114 -(% class="box infomessage" %) 115 -((( 116 -If there is the "Overvoltage" error, the **charging** contactor and **discharging **contactor open (if the “Switch off the discharging contactor on error” flag is set). 117 -))) 118 - 119 119 === Low temperature === 120 120 121 121 The BMS Main 3 device implements battery protection from too low temperature. ... ... @@ -145,12 +145,6 @@ 145 145 146 146 * the minimum temperature among all cells of the battery is greater than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time. 147 147 148 -(% class="box infomessage" %) 149 -((( 150 -If there is the "Low temperature (CH)" error, the **charging **contactor opens. 151 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens. 152 -))) 153 - 154 154 === High temperature === 155 155 156 156 The BMS Main 3 device implements battery protection from too high temperature. ... ... @@ -180,12 +180,6 @@ 180 180 181 181 * the maximum temperature among all cells of the battery is less than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time. 182 182 183 -(% class="box infomessage" %) 184 -((( 185 -If there is the "High temperature (CH)" error, the **charging **contactor opens. 186 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens. 187 -))) 188 - 189 189 === Battery cover === 190 190 191 191 To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section: ... ... @@ -211,7 +211,7 @@ 211 211 212 212 (% class="box warningmessage" %) 213 213 ((( 214 -If there is the "Battery cover error", the **“Critical error” **is generated and all contactors open.**223 +If there is the "Battery cover error", the **“Critical error” **is generated**.** 215 215 ))) 216 216 217 217 === High humidity === ... ... @@ -273,9 +273,9 @@ 273 273 274 274 * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time. 275 275 276 -(% class="box in fomessage" %)285 +(% class="box warningmessage" %) 277 277 ((( 278 -If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.287 +If there is the “Water” error, the **“Critical error”** is generated. 279 279 ))) 280 280 281 281 === Logic high temperature === ... ... @@ -331,7 +331,7 @@ 331 331 332 332 (% class="box warningmessage" %) 333 333 ((( 334 -If there is the "Logic offline" error, the **“Critical error” **is generated and**all relays open.**343 +If there is the "Logic offline" error, the **“Critical error” **is generated**.** 335 335 ))) 336 336 337 337 === Cell count === ... ... @@ -360,7 +360,7 @@ 360 360 361 361 (% class="box warningmessage" %) 362 362 ((( 363 -If there is the "Cell count error", the **“Critical error” **is generated and**all relays open.**372 +If there is the "Cell count error", the **“Critical error” **is generated**.** 364 364 ))) 365 365 366 366 === Logic count === ... ... @@ -388,7 +388,7 @@ 388 388 389 389 (% class="box warningmessage" %) 390 390 ((( 391 -If there is the "Logic count error", the **“Critical error”** is generated and **all relays open.**400 +If there is the "Logic count error", the **“Critical error”** is generated. 392 392 ))) 393 393 394 394 === Short circuit === ... ... @@ -418,11 +418,6 @@ 418 418 419 419 * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time. 420 420 421 -(% class="box infomessage" %) 422 -((( 423 -If there is the "Short circuit" error, **charging **contactor opens (if the “Switch off the charging contactor on error” flag is set) and **discharging **contactor opens (if the “Switch off the discharging contactor on error flag” is set). 424 -))) 425 - 426 426 === High contactor temperature === 427 427 428 428 The BMS Main 3 device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X5 connector is used. ... ... @@ -451,11 +451,6 @@ 451 451 452 452 * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time. 453 453 454 -(% class="box infomessage" %) 455 -((( 456 -If there is the "High contactor temperature" error, **charging **contactor opens (if the “Switch off the charging contactor on error” flag is set) and **discharging **contactor opens (if the “Switch off the discharging contactor on error” flag is set). 457 -))) 458 - 459 459 === Current sensor === 460 460 461 461 The BMS Main 3 device checks the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line. ... ... @@ -487,7 +487,7 @@ 487 487 488 488 (% class="box warningmessage" %) 489 489 ((( 490 -If there is the “Current sensor error”, the **“Critical error” **is generated and **all relays open.**489 +If there is the “Current sensor error”, the **“Critical error” **is generated. 491 491 ))) 492 492 493 493 === Power switch === ... ... @@ -505,13 +505,39 @@ 505 505 506 506 (% class="box warningmessage" %) 507 507 ((( 508 -If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**507 +If there is the "Power switch error", the **“Critical error” **is generated. 509 509 ))) 510 510 511 511 === Power fault === 512 512 513 - TBA512 +BMS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply. 514 514 514 +(% class="box infomessage" %) 515 +((( 516 +**Note:** this error can be configured only under** "Service" account**. 517 +))) 518 + 519 +To change the parameters of the power fault error, select the "Protections → Power fault" section: 520 + 521 +[[image:1739284154410-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]] 522 + 523 +In this section: 524 + 525 +* Enable – a flag to enable the protection; 526 +* Delay before setting the error, millisecond; 527 +* Time to keep power off, millisecond; 528 +* Delay before clearing the error, millisecond; 529 +* Lock – a flag to block the error until the device is restarted. 530 + 531 +The “Power fault” occurs when the device detects a shortage or high power consumption in power supplies mentioned above. After that BMS turns off the corresponding power supply for "Time to keep power off", then it tries to enable power again. 532 + 533 +Error is removed when the power consumption is normal during “Delay before clearing the error” time. 534 + 535 +(% class="box warningmessage" %) 536 +((( 537 +If there is the "Power fault", the **“Critical error” **is generated. 538 +))) 539 + 515 515 === Charge contactor cycles === 516 516 517 517 The BMS Main 3 device protects the charging contactor against frequent switching. ... ... @@ -539,11 +539,6 @@ 539 539 540 540 * the “Delay before clearing the error” time has passed since the error was generated. 541 541 542 -(% class="box infomessage" %) 543 -((( 544 -If there is the "CH contactor cycles error" error, the **charging **contactor opens. 545 -))) 546 - 547 547 === Discharge contactor cycles === 548 548 549 549 The BMS Main 3 device protects the discharging contactor against frequent switching. ... ... @@ -571,11 +571,6 @@ 571 571 572 572 * the “Delay before clearing the error” time has passed since the error was generated. 573 573 574 -(% class="box infomessage" %) 575 -((( 576 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens. 577 -))) 578 - 579 579 === Temperature sensors === 580 580 581 581 The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit. ... ... @@ -595,7 +595,7 @@ 595 595 596 596 (% class="box warningmessage" %) 597 597 ((( 598 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**613 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated. 599 599 ))) 600 600 601 601 === WDT reset === ... ... @@ -618,7 +618,7 @@ 618 618 619 619 (% class="box warningmessage" %) 620 620 ((( 621 -If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**636 +If there is the "WDT reset" error, the **“Critical error” **is generated. 622 622 ))) 623 623 624 624 === Unallowable charging === ... ... @@ -646,11 +646,6 @@ 646 646 647 647 * the battery current is zero during the “Delay before clearing the error” time. 648 648 649 -(% class="box infomessage" %) 650 -((( 651 -If there is the "Unallowable charging" error, the **discharging **contactor opens. 652 -))) 653 - 654 654 === Stuck contactor === 655 655 656 656 The BMS Main 3 device protects contactors against sticking. ... ... @@ -674,7 +674,7 @@ 674 674 675 675 (% class="box warningmessage" %) 676 676 ((( 677 -If there is the “Stuck contactor” error, the **“Critical error” **is generated and **all relays open.**687 +If there is the “Stuck contactor” error, the **“Critical error” **is generated. 678 678 ))) 679 679 680 680 === Contactor feedback === ... ... @@ -698,7 +698,7 @@ 698 698 699 699 (% class="box warningmessage" %) 700 700 ((( 701 -If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**711 +If there is the “Contactor feedback” error, the **“Critical error” **is generated. 702 702 ))) 703 703 704 704 === Insulation === ... ... @@ -724,7 +724,7 @@ 724 724 725 725 (% class="box warningmessage" %) 726 726 ((( 727 -If there is the “Insulation fault”, the **“Critical error”** is generated and **all relays open.**737 +If there is the “Insulation fault”, the **“Critical error”** is generated. 728 728 ))) 729 729 730 730 === HVIL === ... ... @@ -733,22 +733,30 @@ 733 733 734 734 To change the HVIL measurement parameters, select the "Protections → HVIL" section: 735 735 736 -[[image:173 3328487099-371.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="85" width="800"]]746 +[[image:1735224839441-185.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]] 737 737 738 738 In this section: 739 739 740 740 * Enable – a flag to enable the protection; 751 +* Source is OFF: Lower current limit, A; 752 +* Source is OFF: Upper current limit, A; 753 +* Source is ON: Lower current limit, A; 754 +* Source is ON: Upper current limit, A; 741 741 * Lock – a flag to block the error until the device is restarted. 742 742 743 -If interlock loop breaks ,the“HVIL error”isgenerated.Error clearsif interlockloopisbeing restored.757 +If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated. 744 744 759 +Error clears if interlock loop is being restored. 760 + 745 745 (% class="box warningmessage" %) 746 746 ((( 747 -If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.**763 +If there is the “HVIL error”, the **“Critical error”** is generated. 748 748 ))) 749 749 750 750 === Critical error === 751 751 768 +Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault. 769 + 752 752 To change the critical error parameters, select the "Protections → Critical error" section: 753 753 754 754 [[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]] ... ... @@ -760,43 +760,15 @@ 760 760 * Delay before clearing the error, second; 761 761 * Lock – a flag to block the error until the device is restarted. 762 762 763 -The critical errorflag is generated if at least one of thefollowing errors is generated during the “Delay before setting the error” time:781 +The "Critical error" signal is generated if at least one of the critical errors (see [[Errors>>doc:Battery management systems.Additional information.1\. Battery controllers\: signals and errors.WebHome||anchor="HErrors"]]) is generated during the “Delay before setting the error” time. 764 764 765 -* “Battery cover error”; 766 -* “Water”; 767 -* “Logic offline”; 768 -* “Cell count error”; 769 -* “ADC error”; 770 -* “Current sensor error”; 771 -* “Shunt offline”; 772 -* “Shunt error”; 773 -* “WDT reset” 774 -* “No temp. sensors”; 775 -* “Temperature sensor shorted”; 776 -* “Stuck contactor”; 777 -* “CH contactor feedback error”; 778 -* “DCH contactor feedback error”; 779 -* “Insulation fault”; 780 -* “PCH contactor feedback error”; 781 -* “CH/DCH contactor feedback error”; 782 -* “Main contactor feedback error”; 783 -* “High voltage fault”; 784 -* “Power switch error”; 785 -* “HVIL error”l 786 -* “Power fault”. 783 +The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time. 787 787 788 -The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time. 789 - 790 -(% class="box infomessage" %) 791 -((( 792 -If there is the “Critical error”, **all **contactors open. 793 -))) 794 - 795 795 === General error === 796 796 797 797 To change the general error parameters, select the "Protections → Critical error" section: 798 798 799 -[[image:173 3328487101-216.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="262" width="800"]]789 +[[image:1735224942262-497.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]] 800 800 801 801 In this section: 802 802 ... ... @@ -804,7 +804,7 @@ 804 804 * Delay before setting the error, millisecond; 805 805 * Delay before clearing the error, second; 806 806 * Lock – a flag to block the error until the device is restarted; 807 -* Check:<error>–aflags to enable check of corresponding errors.797 +* Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors. 808 808 809 809 The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time. 810 810 ... ... @@ -812,5 +812,5 @@ 812 812 813 813 (% class="box infomessage" %) 814 814 ((( 815 -The state of the “General error” can be outputto a discrete output or a power switch.805 +The state of the “General error” can be assigned to a discrete output or to a power switch. 816 816 )))
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