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Changes for page 3.4 Protections

Last modified by Admin on 2025/10/14 10:27
From version 36.1
edited by Admin
on 2025/08/22 14:07
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To version 42.2
edited by Admin
on 2025/10/14 10:21
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... ... @@ -137,6 +137,12 @@
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  
140 +=== Cell imbalance ===
141 +
142 +The BMS Main 3 device implements battery protection from too much cell imbalance. If balancing algorithm is not enough to compensate
143 +
144 +To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
145 +
140 140  === Low temperature ===
141 141  
142 142  The BMS Main 3 device implements battery protection from too low temperature.
... ... @@ -389,19 +389,19 @@
389 389  * Delay before clearing the error, second;
390 390  * Lock – a flag to block the error until the device is restarted.
391 391  
392 -As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensocount error" is generated.
398 +As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensor count error" is generated.
393 393  
394 394  Error generation conditions:
395 395  
396 -* the number of cells connected to the BMS is **not equal** to the “Number of cells” value during the “Delay before setting the error” time.
402 +* the number of temperature sensors connected to the BMS is **not equal** to the “Number of temperature sensors” value during the “Delay before setting the error” time.
397 397  
398 398  Conditions for removing the error:
399 399  
400 -* the number of cells connected to the BMS is **equal** to the “Number of cells” value during the “Delay before clearing the error” time.
406 +* the number of temperature sensors connected to the BMS is **equal** to the “Number of temperature sensors” value during the “Delay before clearing the error” time.
401 401  
402 402  (% class="box warningmessage" %)
403 403  (((
404 -If there is the "Cell count error", the **“Critical error” **is generated**.**
410 +If there is the "T-sensor count error", the **“Critical error” **is generated**.**
405 405  )))
406 406  
407 407  === Logic count ===
... ... @@ -795,6 +795,37 @@
795 795  If there is the “HVIL error”, the **“Critical error”** is generated.
796 796  )))
797 797  
804 +=== Battery voltage ===
805 +
806 +The BMS Main 3 allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
807 +
808 +To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
809 +
810 +[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
811 +
812 +In this section:
813 +
814 +* Enable – a flag to enable the protection;
815 +* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
816 +* Delay before setting the error, second;
817 +* Delay before clearing the error, second;
818 +* Lock – a flag to block the error until the device is restarted.
819 +
820 +If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
821 +
822 +Error generation conditions:
823 +
824 +* difference between sum of all cell voltages and voltage measured before the contactors is **more **than "Abnormal voltage difference" value during "Delay before setting the error" time.
825 +
826 +Conditions for removing the error:
827 +
828 +* difference between sum of all cell voltages and voltage measured before the contactors is **less **than "Abnormal voltage difference" value during "Delay before clearing the error" time.
829 +
830 +(% class="box warningmessage" %)
831 +(((
832 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
833 +)))
834 +
798 798  === Critical error ===
799 799  
800 800  Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
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