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Changes for page 3.4 Protections

Last modified by Admin on 2025/08/22 14:36
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375 375  If there is the "Cell count error", the **“Critical error” **is generated**.**
376 376  )))
377 377  
378 +=== Temperature sensor count ===
379 +
380 +To change the protection parameters from the mismatch of the number of temperature sensors to the set value, select the "Protections → Temperature sensor count" section:
381 +
382 +[[image:1755871582533-550.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
383 +
384 +In this section:
385 +
386 +* Enable – a flag to enable the protection;
387 +* Number of cells – a number of temperature sensors connected to the BMS;
388 +* Delay before setting the error, millisecond;
389 +* Delay before clearing the error, second;
390 +* Lock – a flag to block the error until the device is restarted.
391 +
392 +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 +
394 +Error generation conditions:
395 +
396 +* 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 +
398 +Conditions for removing the error:
399 +
400 +* 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 +
402 +(% class="box warningmessage" %)
403 +(((
404 +If there is the "T-sensor count error", the **“Critical error” **is generated**.**
405 +)))
406 +
378 378  === Logic count ===
379 379  
380 380  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:
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766 766  If there is the “HVIL error”, the **“Critical error”** is generated.
767 767  )))
768 768  
798 +=== Battery voltage ===
799 +
800 +The BMS Main 3 allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
801 +
802 +To change the HVIL measurement parameters, select the "Protections → Battery voltage" section:
803 +
804 +[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
805 +
806 +In this section:
807 +
808 +* Enable – a flag to enable the protection;
809 +* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
810 +* Delay before setting the error, second;
811 +* Delay before clearing the error, second;
812 +* Lock – a flag to block the error until the device is restarted.
813 +
814 +If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
815 +
816 +Error generation conditions:
817 +
818 +* 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.
819 +
820 +Conditions for removing the error:
821 +
822 +* 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.
823 +
769 769  === Critical error ===
770 770  
771 771  Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
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