Changes for page 3.4 Protections
Last modified by Admin on 2025/04/09 12:19
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... ... @@ -6,12 +6,6 @@ 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 - 15 15 === Overcurrent === 16 16 17 17 The BMS Main 3 device performs the overcurrent protection depending on current sensor values. ... ... @@ -43,6 +43,11 @@ 43 43 * 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; 44 44 * 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. 45 45 40 +(% class="box infomessage" %) 41 +((( 42 +If there is the "Overcurrent" error, the **charging **and **discharging **contactors open. 43 +))) 44 + 46 46 === Charge current limit === 47 47 48 48 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. ... ... @@ -54,13 +54,10 @@ 54 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 55 56 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 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. 56 +* Threshold to switch from Region 1 to Region 2 – a current value at which 57 +* 63 63 59 + 64 64 === Discharge current limit === 65 65 66 66 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. ... ... @@ -74,12 +74,7 @@ 74 74 In this section: 75 75 76 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 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. 73 +* Threshold to switch from Region 1 to Region 2 83 83 84 84 === Undervoltage === 85 85 ... ... @@ -109,6 +109,11 @@ 109 109 110 110 * 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. 111 111 103 +(% class="box infomessage" %) 104 +((( 105 +If there is the "Undervoltage" error, the **discharging **contactor opens. 106 +))) 107 + 112 112 === Overvoltage === 113 113 114 114 The BMS Main 3 device implements battery protection from too high voltage on the cells. ... ... @@ -137,6 +137,11 @@ 137 137 138 138 * 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. 139 139 136 +(% 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 + 140 140 === Low temperature === 141 141 142 142 The BMS Main 3 device implements battery protection from too low temperature. ... ... @@ -166,6 +166,12 @@ 166 166 167 167 * 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. 168 168 170 +(% 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 + 169 169 === High temperature === 170 170 171 171 The BMS Main 3 device implements battery protection from too high temperature. ... ... @@ -195,6 +195,12 @@ 195 195 196 196 * 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. 197 197 205 +(% 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 + 198 198 === Battery cover === 199 199 200 200 To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section: ... ... @@ -220,7 +220,7 @@ 220 220 221 221 (% class="box warningmessage" %) 222 222 ((( 223 -If there is the "Battery cover error", the **“Critical error” **is generated**.** 236 +If there is the "Battery cover error", the **“Critical error” **is generated **and all contactors open.** 224 224 ))) 225 225 226 226 === High humidity === ... ... @@ -282,9 +282,9 @@ 282 282 283 283 * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time. 284 284 285 -(% class="box warningmessage" %)298 +(% class="box infomessage" %) 286 286 ((( 287 -If there is the “Water” error, the **“Critical error”** is generated. 300 +If there is the “Water” error, the **“Critical error”** is generated and **all relays open**. 288 288 ))) 289 289 290 290 === Logic high temperature === ... ... @@ -340,7 +340,7 @@ 340 340 341 341 (% class="box warningmessage" %) 342 342 ((( 343 -If there is the "Logic offline" error, the **“Critical error” **is generated**.** 356 +If there is the "Logic offline" error, the **“Critical error” **is generated and **all relays open.** 344 344 ))) 345 345 346 346 === Cell count === ... ... @@ -369,7 +369,7 @@ 369 369 370 370 (% class="box warningmessage" %) 371 371 ((( 372 -If there is the "Cell count error", the **“Critical error” **is generated**.** 385 +If there is the "Cell count error", the **“Critical error” **is generated and **all relays open.** 373 373 ))) 374 374 375 375 === Logic count === ... ... @@ -397,7 +397,7 @@ 397 397 398 398 (% class="box warningmessage" %) 399 399 ((( 400 -If there is the "Logic count error", the **“Critical error”** is generated. 413 +If there is the "Logic count error", the **“Critical error”** is generated and **all relays open.** 401 401 ))) 402 402 403 403 === Short circuit === ... ... @@ -427,6 +427,11 @@ 427 427 428 428 * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time. 429 429 443 +(% 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 + 430 430 === High contactor temperature === 431 431 432 432 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. ... ... @@ -455,6 +455,11 @@ 455 455 456 456 * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time. 457 457 476 +(% 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 + 458 458 === Current sensor === 459 459 460 460 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. ... ... @@ -486,7 +486,7 @@ 486 486 487 487 (% class="box warningmessage" %) 488 488 ((( 489 -If there is the “Current sensor error”, the **“Critical error” **is generated. 512 +If there is the “Current sensor error”, the **“Critical error” **is generated and **all relays open.** 490 490 ))) 491 491 492 492 === Power switch === ... ... @@ -504,39 +504,13 @@ 504 504 505 505 (% class="box warningmessage" %) 506 506 ((( 507 -If there is the "Power switch error", the **“Critical error” **is generated. 530 +If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.** 508 508 ))) 509 509 510 510 === Power fault === 511 511 512 -B MS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.535 +TBA 513 513 514 -(% 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 the Time to keep power off 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 - 540 540 === Charge contactor cycles === 541 541 542 542 The BMS Main 3 device protects the charging contactor against frequent switching. ... ... @@ -564,6 +564,11 @@ 564 564 565 565 * the “Delay before clearing the error” time has passed since the error was generated. 566 566 564 +(% class="box infomessage" %) 565 +((( 566 +If there is the "CH contactor cycles error" error, the **charging **contactor opens. 567 +))) 568 + 567 567 === Discharge contactor cycles === 568 568 569 569 The BMS Main 3 device protects the discharging contactor against frequent switching. ... ... @@ -591,6 +591,11 @@ 591 591 592 592 * the “Delay before clearing the error” time has passed since the error was generated. 593 593 596 +(% class="box infomessage" %) 597 +((( 598 +If there is the "DCH contactor cycles error" error, the **discharging **contactor opens. 599 +))) 600 + 594 594 === Temperature sensors === 595 595 596 596 The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit. ... ... @@ -610,7 +610,7 @@ 610 610 611 611 (% class="box warningmessage" %) 612 612 ((( 613 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated. 620 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.** 614 614 ))) 615 615 616 616 === WDT reset === ... ... @@ -633,7 +633,7 @@ 633 633 634 634 (% class="box warningmessage" %) 635 635 ((( 636 -If there is the "WDT reset" error, the **“Critical error” **is generated. 643 +If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.** 637 637 ))) 638 638 639 639 === Unallowable charging === ... ... @@ -661,6 +661,11 @@ 661 661 662 662 * the battery current is zero during the “Delay before clearing the error” time. 663 663 671 +(% class="box infomessage" %) 672 +((( 673 +If there is the "Unallowable charging" error, the **discharging **contactor opens. 674 +))) 675 + 664 664 === Stuck contactor === 665 665 666 666 The BMS Main 3 device protects contactors against sticking. ... ... @@ -684,7 +684,7 @@ 684 684 685 685 (% class="box warningmessage" %) 686 686 ((( 687 -If there is the “Stuck contactor” error, the **“Critical error” **is generated. 699 +If there is the “Stuck contactor” error, the **“Critical error” **is generated and **all relays open.** 688 688 ))) 689 689 690 690 === Contactor feedback === ... ... @@ -708,7 +708,7 @@ 708 708 709 709 (% class="box warningmessage" %) 710 710 ((( 711 -If there is the “Contactor feedback” error, the **“Critical error” **is generated. 723 +If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.** 712 712 ))) 713 713 714 714 === Insulation === ... ... @@ -734,7 +734,7 @@ 734 734 735 735 (% class="box warningmessage" %) 736 736 ((( 737 -If there is the “Insulation fault”, the **“Critical error”** is generated. 749 +If there is the “Insulation fault”, the **“Critical error”** is generated and **all relays open.** 738 738 ))) 739 739 740 740 === HVIL === ... ... @@ -758,13 +758,11 @@ 758 758 759 759 (% class="box warningmessage" %) 760 760 ((( 761 -If there is the “HVIL error”, the **“Critical error”** is generated. 773 +If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.** 762 762 ))) 763 763 764 764 === Critical error === 765 765 766 -Some of the errors are system critical. A separate signal named "Critical error" indicates a system misbehaviour. 767 - 768 768 To change the critical error parameters, select the "Protections → Critical error" section: 769 769 770 770 [[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]] ... ... @@ -776,10 +776,38 @@ 776 776 * Delay before clearing the error, second; 777 777 * Lock – a flag to block the error until the device is restarted. 778 778 779 -The "Critical error"signal is generated if at least one of thecritical errors (see [[Errors>>doc:Battery management systems.Additional information.1\. Battery controllers\: signalsanderrors.WebHome||anchor="HErrors"]])is generated during the “Delay before setting the error” time:789 +The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time: 780 780 781 -The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time. 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”. 782 782 814 +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 + 783 783 === General error === 784 784 785 785 To change the general error parameters, select the "Protections → Critical error" section: ... ... @@ -800,5 +800,5 @@ 800 800 801 801 (% class="box infomessage" %) 802 802 ((( 803 -The state of the “General error” can be assignedto a discrete output ortoa power switch.841 +The state of the “General error” can be output to a discrete output or a power switch. 804 804 )))
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