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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 43.1
edited by Admin
on 2025/10/14 10:24
Change comment: Uploaded new attachment "1760437465709-702.png", version {1}
To version 51.3
edited by Admin
on 2026/04/01 08:29
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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 ==
6 6  
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.
7 +The BMS Main 3 / BMS Main 2R 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 9  (% class="box errormessage" %)
10 10  (((
... ... @@ -14,7 +14,7 @@
14 14  
15 15  === Overcurrent ===
16 16  
17 -The BMS Main 3 device performs the overcurrent protection depending on current sensor values.
17 +The BMS Main 3 / BMS Main 2R device performs the overcurrent protection depending on current sensor values.
18 18  
19 19  To change the overcurrent protection of the battery, select the "Protections → Overcurrent" section:
20 20  
... ... @@ -22,14 +22,14 @@
22 22  
23 23  In this section:
24 24  
25 -* Enable – a flag to enable the protection;
26 -* Maximum charging current, А;
27 -* Tolerant charging current, А;
28 -* Maximum discharging current, А;
29 -* Tolerant discharging current, А;
30 -* Delay before setting the error, millisecond;
31 -* Delay before clearing the error, second;
32 -* Lock – a flag to block the error until the device is restarted.
25 +* **Enable **– a flag to enable the protection;
26 +* **Maximum charging current**, А;
27 +* **Tolerant charging current**, А;
28 +* **Maximum discharging current**, А;
29 +* **Tolerant discharging current**, А;
30 +* **Delay before setting the error**, millisecond;
31 +* **Delay before clearing the error**, second;
32 +* **Lock **– a flag to block the error until the device is restarted.
33 33  
34 34  As a result of operation of the overcurrent protection, the "Overcurrent" error is generated.
35 35  
... ... @@ -45,7 +45,7 @@
45 45  
46 46  === Charge current limit ===
47 47  
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.
48 +The BMS Main 3 / BMS Main 2R 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.
49 49  
50 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 51  
... ... @@ -53,17 +53,17 @@
53 53  
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 -* 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.
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 63  
64 64  === Discharge current limit ===
65 65  
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.
66 +The BMS Main 3 / BMS Main 2R 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.
67 67  
68 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 69  
... ... @@ -73,17 +73,17 @@
73 73  
74 74  In this section:
75 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.
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 83  
84 84  === Undervoltage ===
85 85  
86 -The BMS Main 3 device implements battery protection from too low voltage on the cells.
86 +The BMS Main 3 / BMS Main 2R device implements battery protection from too low voltage on the cells.
87 87  
88 88  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
89 89  
... ... @@ -91,13 +91,13 @@
91 91  
92 92  In this section:
93 93  
94 -* Enable – a flag to enable the protection;
95 -* Minimum cell voltage, V;
96 -* Tolerant cell voltage, V;
97 -* Check the open circuit voltage instead of the actual voltage – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
98 -* Delay before setting the error, millisecond;
99 -* Delay before clearing the error, second;
100 -* Lock – a flag to block the error until the device is restarted.
94 +* **Enable **– a flag to enable the protection;
95 +* **Minimum cell voltage**, V;
96 +* **Tolerant cell voltage**, V;
97 +* **Check the open circuit voltage instead of the actual voltage** – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
98 +* **Delay before setting the error**, millisecond;
99 +* **Delay before clearing the error**, second;
100 +* **Lock **– a flag to block the error until the device is restarted.
101 101  
102 102  As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
103 103  
... ... @@ -111,7 +111,7 @@
111 111  
112 112  === Overvoltage ===
113 113  
114 -The BMS Main 3 device implements battery protection from too high voltage on the cells.
114 +The BMS Main 3 / BMS Main 2R device implements battery protection from too high voltage on the cells.
115 115  
116 116  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
117 117  
... ... @@ -119,13 +119,13 @@
119 119  
120 120  In this section:
121 121  
122 -* Enable – a flag to enable the protection;
123 -* Maximum cell voltage, V;
124 -* Tolerant cell voltage, V;
125 -* Check the open circuit voltage instead of the actual voltage – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
126 -* Delay before setting the error, millisecond;
127 -* Delay before clearing the error, second;
128 -* Lock – a flag to block the error until the device is restarted.
122 +* **Enable **– a flag to enable the protection;
123 +* **Maximum cell voltage**, V;
124 +* **Tolerant cell voltage**, V;
125 +* **Check the open circuit voltage instead of the actual voltage** – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
126 +* **Delay before setting the error**, millisecond;
127 +* **Delay before clearing the error**, second;
128 +* **Lock **– a flag to block the error until the device is restarted.
129 129  
130 130  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
131 131  
... ... @@ -139,13 +139,32 @@
139 139  
140 140  === Cell imbalance ===
141 141  
142 -The BMS Main 3 device implements battery protection from too much cell imbalance. If balancing algorithm is not enough to compensate battery imbalance, then imbalance protection generates an error
142 +The BMS Main 3 / BMS Main 2R device implements battery protection from too much cell imbalance. If balancing algorithm is not enough to compensate battery imbalance, then imbalance protection generates an error when imbalance is above estimated threshold.
143 143  
144 -To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
144 +To change the battery protection parameters from cell imbalance, select the "Protections → Cell imbalance" section:
145 145  
146 +[[image:1760437465709-702.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="133" width="800"]]In this section:
147 +
148 +* **Enable **– a flag to enable the protection;
149 +* **Maximum cell imbalance**, V;
150 +* **Tolerant cell imbalance**, V;
151 +* **Delay before setting the error**, millisecond;
152 +* **Delay before clearing the error**, second;
153 +* **Lock **– a flag to block the error until the device is restarted.
154 +
155 +As a result of the operation of the battery protection from cell imbalance, the "Cell imbalance” error is generated.
156 +
157 +Error generation conditions:
158 +
159 +* the voltage difference between the most charged cell and the least charged cell is more than the “Maximum cell imbalance” value for the “Delay before setting the error” time.
160 +
161 +Conditions for removing the error:
162 +
163 +* the voltage difference between the most charged cell and the least charged cell is less than the “Tolerant cell imbalance” value for the “Delay before clearing the error” time.
164 +
146 146  === Low temperature ===
147 147  
148 -The BMS Main 3 device implements battery protection from too low temperature.
167 +The BMS Main 3 / BMS Main 2R device implements battery protection from too low temperature.
149 149  
150 150  To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
151 151  
... ... @@ -153,12 +153,12 @@
153 153  
154 154  In this section:
155 155  
156 -* Enable – a flag to enable the protection;
157 -* Minimum charge temperature, °C;
158 -* Tolerant charge temperature, °C;
159 -* Minimum discharge temperature, °C;
160 -* Tolerant discharge temperature, °C;
161 -* Delay before setting the error, millisecond;
175 +* **Enable **– a flag to enable the protection;
176 +* **Minimum charge temperature**, °C;
177 +* **Tolerant charge temperature**, °C;
178 +* **Minimum discharge temperature**, °C;
179 +* **Tolerant discharge temperature**, °C;
180 +* **Delay before setting the error**, millisecond;
162 162  * Delay before clearing the error, second;
163 163  * Lock – a flag to block the error until the device is restarted.
164 164  
... ... @@ -174,7 +174,7 @@
174 174  
175 175  === High temperature ===
176 176  
177 -The BMS Main 3 device implements battery protection from too high temperature.
196 +The BMS Main 3 / BMS Main 2R device implements battery protection from too high temperature.
178 178  
179 179  To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
180 180  
... ... @@ -231,7 +231,7 @@
231 231  
232 232  === High humidity ===
233 233  
234 -The BMS Main 3 can detect that the battery is operating in high humidity conditions.
253 +The BMS Main 3 / BMS Main 2R can detect that the battery is operating in high humidity conditions.
235 235  
236 236  To change the detection parameters, select the "Protections → High humidity" section:
237 237  
... ... @@ -263,7 +263,7 @@
263 263  
264 264  === Water ===
265 265  
266 -The BMS Main 3 can protect the battery from working in very high humidity conditions.
285 +The BMS Main 3 / BMS Main 2R can protect the battery from working in very high humidity conditions.
267 267  
268 268  To change the protection parameters, select the "Protections → Water" section:
269 269  
... ... @@ -414,7 +414,7 @@
414 414  
415 415  To change the protection parameters from the mismatch of the number of BMS Logic devices to the set value, select the "Protections → Logic count” section:
416 416  
417 -[[image:1733328415732-163.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]
436 +[[image:1762425434368-516.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="125" width="800"]]
418 418  
419 419  In this section:
420 420  
... ... @@ -421,6 +421,8 @@
421 421  * Enable – a flag to enable the protection;
422 422  * Logic count – a number of BMS Logic devices connected to the BMS Main;
423 423  * Scan fast – a flag to scan BMS Logic devices fast (devices with addresses from 1 to “Logic count” are scanned; this mode reduces BMS system startup time);
443 +* Delay before setting the error – a delay before setting the error //during initialization//, millisecond;
444 +* Delay before clearing the error– a delay before clearing the error //during initialization//, second;
424 424  * Lock – lock the error until the device is reset.
425 425  
426 426  As a result of the operation of the protection from the mismatch of the number of BMS Logic devices, the "Logic count error" is generated.
... ... @@ -427,11 +427,13 @@
427 427  
428 428  Error generation conditions:
429 429  
430 -* the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
451 +* during the initialization BMS Main 3 / BMS Main 2R have not found required number of BMS Logic devices during the "Delay before setting the error" time;
452 +* after the initialization the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
431 431  
432 432  Conditions for removing the error:
433 433  
434 -* the number of BMS Logic devices connected to the BMS Main is **equal** to the “Logic count” value.
456 +* during the initialization BMS Main 3 / BMS Main 2R have found required number of BMS Logic devices and the "Delay before setting the error" time has passed;
457 +* after the initialization the number of BMS Logic devices connected to the BMS Main is **equal** to the “Logic count” value.
435 435  
436 436  (% class="box warningmessage" %)
437 437  (((
... ... @@ -440,7 +440,7 @@
440 440  
441 441  === Short circuit ===
442 442  
443 -The BMS Main 3 device implements the protection of power circuits (contactors, power wires) against overheating caused by the flow of high current for a long time.
466 +The BMS Main 3 / BMS Main 2R device implements the protection of power circuits (contactors, power wires) against overheating caused by the flow of high current for a long time.
444 444  
445 445  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
446 446  
... ... @@ -467,7 +467,7 @@
467 467  
468 468  === High contactor temperature ===
469 469  
470 -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.
493 +The BMS Main 3 / BMS Main 2R device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X5 connector is used.
471 471  
472 472  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
473 473  
... ... @@ -495,7 +495,7 @@
495 495  
496 496  === Current sensor ===
497 497  
498 -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.
521 +The BMS Main 3 / BMS Main 2R device checks the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
499 499  
500 500  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
501 501  
... ... @@ -529,7 +529,7 @@
529 529  
530 530  === Power switch ===
531 531  
532 -BMS Main 3 device checks the status of power switches that are used to control the contactors. To change the parameters of the power switch protection, select the "Protections → Power switch" section:
555 +BMS Main 3 / BMS Main 2R device checks the status of power switches that are used to control the contactors. To change the parameters of the power switch protection, select the "Protections → Power switch" section:
533 533  
534 534  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
535 535  
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547 547  
548 548  === Power fault ===
549 549  
550 -BMS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
573 +BMS Main 3 / BMS Main 2R device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
551 551  
552 552  (% class="box infomessage" %)
553 553  (((
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577 577  
578 578  === Charge contactor cycles ===
579 579  
580 -The BMS Main 3 device protects the charging contactor against frequent switching.
603 +The BMS Main 3 / BMS Main 2R device protects the charging contactor against frequent switching.
581 581  
582 582  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
583 583  
... ... @@ -604,7 +604,7 @@
604 604  
605 605  === Discharge contactor cycles ===
606 606  
607 -The BMS Main 3 device protects the discharging contactor against frequent switching.
630 +The BMS Main 3 / BMS Main 2R device protects the discharging contactor against frequent switching.
608 608  
609 609  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
610 610  
... ... @@ -631,7 +631,7 @@
631 631  
632 632  === Temperature sensors ===
633 633  
634 -The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
657 +The BMS Main 3 / BMS Main 2R device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
635 635  
636 636  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
637 637  
... ... @@ -701,7 +701,7 @@
701 701  
702 702  === Stuck contactor ===
703 703  
704 -The BMS Main 3 device protects contactors against sticking.
727 +The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
705 705  
706 706  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
707 707  
... ... @@ -727,7 +727,7 @@
727 727  
728 728  === Contactor feedback ===
729 729  
730 -The BMS Main 3 device can receive feedback signals from contactors and detect discrepancy between the control value and the feedback signal. To enable specific contactor protection, the feedback signal must be connected to the corresponding contactor feedback pin on the X3 header.
753 +The BMS Main 3 / BMS Main 2R device can receive feedback signals from contactors and detect discrepancy between the control value and the feedback signal. To enable specific contactor protection, the feedback signal must be connected to the corresponding contactor feedback pin on the X3 header.
731 731  
732 732  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
733 733  
... ... @@ -751,7 +751,7 @@
751 751  
752 752  === Insulation ===
753 753  
754 -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.
777 +The BMS Main 3 / BMS Main 2R 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.
755 755  
756 756  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
757 757  
... ... @@ -777,7 +777,7 @@
777 777  
778 778  === HVIL ===
779 779  
780 -The BMS Main 3 allows to control the high voltage interlock loop by applying current to a testing loop and monitoring the difference between the measured current and the required value.
803 +The BMS Main 3 / BMS Main 2R allows to control the high voltage interlock loop by applying current to a testing loop and monitoring the difference between the measured current and the required value.
781 781  
782 782  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
783 783  
... ... @@ -803,7 +803,7 @@
803 803  
804 804  === Battery voltage ===
805 805  
806 -The BMS Main 3 allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
829 +The BMS Main 3 / BMS Main 2R allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
807 807  
808 808  To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
809 809  
... ... @@ -838,7 +838,7 @@
838 838  
839 839  To change the critical error parameters, select the "Protections → Critical error" section:
840 840  
841 -[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
864 +[[image:1762775547945-129.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="117" width="800"]]
842 842  
843 843  In this section:
844 844  
... ... @@ -845,6 +845,7 @@
845 845  * Enable – a flag to enable the protection;
846 846  * Delay before setting the error, millisecond;
847 847  * Delay before clearing the error, second;
871 +* Errors 1, 2 to to ignore when setting the critical error;
848 848  * Lock – a flag to block the error until the device is restarted.
849 849  
850 850  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.
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