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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:19
From version 9.1
edited by Admin
on 2024/12/26 14:46
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To version 5.1
edited by Admin
on 2024/12/16 21:07
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42 42  If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43 43  )))
44 44  
45 -=== Charge current limit ===
46 -
47 -TBA
48 -
49 -=== Discharge current limit ===
50 -
51 -TBA
52 -
53 53  === Undervoltage ===
54 54  
55 55  The BMS Main 3 device implements battery protection from too low voltage on the cells.
... ... @@ -56,7 +56,7 @@
56 56  
57 57  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
58 58  
59 -[[image:1735224224155-829.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="112" width="800"]]
51 +[[image:1733328382380-760.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="127" width="800"]]
60 60  
61 61  In this section:
62 62  
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63 63  * Enable – a flag to enable the protection;
64 64  * Minimum cell voltage, V;
65 65  * Tolerant cell voltage, V;
66 -* Check the open circuit voltage instead of the actual voltage – a flag to enable the check of voltage correction due to current and cell resistance;
67 67  * Delay before setting the error, millisecond;
68 68  * Delay before clearing the error, second;
69 69  * Lock – a flag to block the error until the device is restarted.
... ... @@ -96,7 +96,6 @@
96 96  * Enable – a flag to enable the protection;
97 97  * Maximum cell voltage, V;
98 98  * Tolerant cell voltage, V;
99 -* Check the open circuit voltage instead of the actual voltage – a flag to enable the check of voltage correction due to current and cell resistance;
100 100  * Delay before setting the error, millisecond;
101 101  * Delay before clearing the error, second;
102 102  * Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Overvoltage" error is generated;
... ... @@ -279,7 +279,7 @@
279 279  If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.
280 280  )))
281 281  
282 -=== Logic high temperature ===
272 +=== High Logic temperature ===
283 283  
284 284  To change the overheating protection parameters of BMS Logic devices, select the "Protections → High Logic temperature" section:
285 285  
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513 513  If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
514 514  )))
515 515  
516 -=== Power fault ===
517 -
518 -TBA
519 -
520 520  === Charge contactor cycles ===
521 521  
522 522  The BMS Main 3 device protects the charging contactor against frequent switching.
... ... @@ -706,6 +706,28 @@
706 706  If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
707 707  )))
708 708  
695 +=== Precharge ===
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 +
709 709  === Insulation ===
710 710  
711 711  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.
... ... @@ -797,7 +797,7 @@
797 797  If there is the “Critical error”, **all **contactors open.
798 798  )))
799 799  
800 -=== General error ===
808 +=== ​​​​​​​General error ===
801 801  
802 802  To change the general error parameters, select the "Protections → Critical error" section:
803 803  
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