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. ... ... @@ -37,11 +37,6 @@ 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 47 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. ... ... @@ -53,10 +53,13 @@ 53 53 [[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section: 54 54 55 55 * Enable – a flag to enable the protection; 56 -* Threshold to switch from Region 1 to Region 2 – a current value at which 57 -* 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 diffr, 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. 58 58 59 - 60 60 === Discharge current limit === 61 61 62 62 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. ... ... @@ -70,7 +70,12 @@ 70 70 In this section: 71 71 72 72 * Enable – a flag to enable the protection; 73 -* Threshold to switch from Region 1 to Region 2 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 diffr, 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. 74 74 75 75 === Undervoltage === 76 76 ... ... @@ -100,11 +100,6 @@ 100 100 101 101 * 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. 102 102 103 -(% class="box infomessage" %) 104 -((( 105 -If there is the "Undervoltage" error, the **discharging **contactor opens. 106 -))) 107 - 108 108 === Overvoltage === 109 109 110 110 The BMS Main 3 device implements battery protection from too high voltage on the cells. ... ... @@ -133,11 +133,6 @@ 133 133 134 134 * 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. 135 135 136 -(% class="box infomessage" %) 137 -((( 138 -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). 139 -))) 140 - 141 141 === Low temperature === 142 142 143 143 The BMS Main 3 device implements battery protection from too low temperature. ... ... @@ -167,12 +167,6 @@ 167 167 168 168 * 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. 169 169 170 -(% class="box infomessage" %) 171 -((( 172 -If there is the "Low temperature (CH)" error, the **charging **contactor opens. 173 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens. 174 -))) 175 - 176 176 === High temperature === 177 177 178 178 The BMS Main 3 device implements battery protection from too high temperature. ... ... @@ -202,12 +202,6 @@ 202 202 203 203 * 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. 204 204 205 -(% class="box infomessage" %) 206 -((( 207 -If there is the "High temperature (CH)" error, the **charging **contactor opens. 208 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens. 209 -))) 210 - 211 211 === Battery cover === 212 212 213 213 To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section: ... ... @@ -233,7 +233,7 @@ 233 233 234 234 (% class="box warningmessage" %) 235 235 ((( 236 -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**.** 237 237 ))) 238 238 239 239 === High humidity === ... ... @@ -295,9 +295,9 @@ 295 295 296 296 * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time. 297 297 298 -(% class="box in fomessage" %)285 +(% class="box warningmessage" %) 299 299 ((( 300 -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. 301 301 ))) 302 302 303 303 === Logic high temperature === ... ... @@ -353,7 +353,7 @@ 353 353 354 354 (% class="box warningmessage" %) 355 355 ((( 356 -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**.** 357 357 ))) 358 358 359 359 === Cell count === ... ... @@ -382,7 +382,7 @@ 382 382 383 383 (% class="box warningmessage" %) 384 384 ((( 385 -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**.** 386 386 ))) 387 387 388 388 === Logic count === ... ... @@ -410,7 +410,7 @@ 410 410 411 411 (% class="box warningmessage" %) 412 412 ((( 413 -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. 414 414 ))) 415 415 416 416 === Short circuit === ... ... @@ -440,11 +440,6 @@ 440 440 441 441 * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time. 442 442 443 -(% class="box infomessage" %) 444 -((( 445 -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). 446 -))) 447 - 448 448 === High contactor temperature === 449 449 450 450 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. ... ... @@ -473,11 +473,6 @@ 473 473 474 474 * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time. 475 475 476 -(% class="box infomessage" %) 477 -((( 478 -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). 479 -))) 480 - 481 481 === Current sensor === 482 482 483 483 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. ... ... @@ -509,7 +509,7 @@ 509 509 510 510 (% class="box warningmessage" %) 511 511 ((( 512 -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. 513 513 ))) 514 514 515 515 === Power switch === ... ... @@ -527,13 +527,37 @@ 527 527 528 528 (% class="box warningmessage" %) 529 529 ((( 530 -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. 531 531 ))) 532 532 533 533 === Power fault === 534 534 535 - TBA512 +BMS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply. 536 536 514 +(% 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 +* Delay before clearing the error, second; 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. Error is removed when the power consumption is normal during “Delay before clearing the error” time. 532 + 533 +(% class="box warningmessage" %) 534 +((( 535 +If there is the "Power fault", the **“Critical error” **is generated. 536 +))) 537 + 537 537 === Charge contactor cycles === 538 538 539 539 The BMS Main 3 device protects the charging contactor against frequent switching. ... ... @@ -561,11 +561,6 @@ 561 561 562 562 * the “Delay before clearing the error” time has passed since the error was generated. 563 563 564 -(% class="box infomessage" %) 565 -((( 566 -If there is the "CH contactor cycles error" error, the **charging **contactor opens. 567 -))) 568 - 569 569 === Discharge contactor cycles === 570 570 571 571 The BMS Main 3 device protects the discharging contactor against frequent switching. ... ... @@ -593,11 +593,6 @@ 593 593 594 594 * the “Delay before clearing the error” time has passed since the error was generated. 595 595 596 -(% class="box infomessage" %) 597 -((( 598 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens. 599 -))) 600 - 601 601 === Temperature sensors === 602 602 603 603 The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit. ... ... @@ -617,7 +617,7 @@ 617 617 618 618 (% class="box warningmessage" %) 619 619 ((( 620 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**611 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated. 621 621 ))) 622 622 623 623 === WDT reset === ... ... @@ -640,7 +640,7 @@ 640 640 641 641 (% class="box warningmessage" %) 642 642 ((( 643 -If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**634 +If there is the "WDT reset" error, the **“Critical error” **is generated. 644 644 ))) 645 645 646 646 === Unallowable charging === ... ... @@ -668,11 +668,6 @@ 668 668 669 669 * the battery current is zero during the “Delay before clearing the error” time. 670 670 671 -(% class="box infomessage" %) 672 -((( 673 -If there is the "Unallowable charging" error, the **discharging **contactor opens. 674 -))) 675 - 676 676 === Stuck contactor === 677 677 678 678 The BMS Main 3 device protects contactors against sticking. ... ... @@ -696,7 +696,7 @@ 696 696 697 697 (% class="box warningmessage" %) 698 698 ((( 699 -If there is the “Stuck contactor” error, the **“Critical error” **is generated and **all relays open.**685 +If there is the “Stuck contactor” error, the **“Critical error” **is generated. 700 700 ))) 701 701 702 702 === Contactor feedback === ... ... @@ -720,7 +720,7 @@ 720 720 721 721 (% class="box warningmessage" %) 722 722 ((( 723 -If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**709 +If there is the “Contactor feedback” error, the **“Critical error” **is generated. 724 724 ))) 725 725 726 726 === Insulation === ... ... @@ -746,7 +746,7 @@ 746 746 747 747 (% class="box warningmessage" %) 748 748 ((( 749 -If there is the “Insulation fault”, the **“Critical error”** is generated and **all relays open.**735 +If there is the “Insulation fault”, the **“Critical error”** is generated. 750 750 ))) 751 751 752 752 === HVIL === ... ... @@ -770,11 +770,13 @@ 770 770 771 771 (% class="box warningmessage" %) 772 772 ((( 773 -If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.**759 +If there is the “HVIL error”, the **“Critical error”** is generated. 774 774 ))) 775 775 776 776 === Critical error === 777 777 764 +Some of the errors are system critical. A separate signal named "Critical error" indicates a system misbehaviour. 765 + 778 778 To change the critical error parameters, select the "Protections → Critical error" section: 779 779 780 780 [[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]] ... ... @@ -786,38 +786,10 @@ 786 786 * Delay before clearing the error, second; 787 787 * Lock – a flag to block the error until the device is restarted. 788 788 789 -The critical error flag is generated if at least one of thefollowing errors is generated during the “Delay before setting the error” time:777 +The "Critical error" flag 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: 790 790 791 -* “Battery cover error”; 792 -* “Water”; 793 -* “Logic offline”; 794 -* “Cell count error”; 795 -* “ADC error”; 796 -* “Current sensor error”; 797 -* “Shunt offline”; 798 -* “Shunt error”; 799 -* “WDT reset” 800 -* “No temp. sensors”; 801 -* “Temperature sensor shorted”; 802 -* “Stuck contactor”; 803 -* “CH contactor feedback error”; 804 -* “DCH contactor feedback error”; 805 -* “Insulation fault”; 806 -* “PCH contactor feedback error”; 807 -* “CH/DCH contactor feedback error”; 808 -* “Main contactor feedback error”; 809 -* “High voltage fault”; 810 -* “Power switch error”; 811 -* “HVIL error”l 812 -* “Power fault”. 779 +The “Critical error” flag is cleared if there are no errors from the list above during the “Delay before clearing the error” time. 813 813 814 -The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time. 815 - 816 -(% class="box infomessage" %) 817 -((( 818 -If there is the “Critical error”, **all **contactors open. 819 -))) 820 - 821 821 === General error === 822 822 823 823 To change the general error parameters, select the "Protections → Critical error" section: ... ... @@ -838,5 +838,5 @@ 838 838 839 839 (% class="box infomessage" %) 840 840 ((( 841 -The state of the “General error” can be outputto a discrete output or a power switch.801 +The state of the “General error” can be assigned to a discrete output or to a power switch. 842 842 )))
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