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Changes for page 3.4 Protections

Last modified by Admin on 2025/10/14 10:27
From version 43.2
edited by Admin
on 2025/10/14 10:24
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To version 36.1
edited by Admin
on 2025/08/22 14:07
Change comment: Uploaded new attachment "1755871661259-633.png", version {1}

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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 battery imbalance, then imbalance protection generates an error when imbalance is above estimated threshold.
143 -
144 -To change the battery protection parameters from cell imbalance, select the "Protections → Cell imbalance" section:
145 -
146 -[[image:1760437465709-702.png]]
147 -
148 -In this section:
149 -
150 -* Enable – a flag to enable the protection;
151 -* Minimum charge temperature, °C;
152 -* Tolerant charge temperature, °C;
153 -* Minimum discharge temperature, °C;
154 -* Tolerant discharge temperature, °C;
155 -* Delay before setting the error, millisecond;
156 -* Delay before clearing the error, second;
157 -* Lock – a flag to block the error until the device is restarted.
158 -
159 -As a result of the operation of the battery protection from low temperature, the "Low temperature (CH)" and/or “Low temperature (DCH)” error are generated.
160 -
161 -Error generation conditions:
162 -
163 -* the minimum temperature among all cells of the battery is less than the “Minimum charging (discharging) temperature” value for the “Delay before setting the error” time.
164 -
165 -Conditions for removing the error:
166 -
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 -
169 169  === Low temperature ===
170 170  
171 171  The BMS Main 3 device implements battery protection from too low temperature.
... ... @@ -418,19 +418,19 @@
418 418  * Delay before clearing the error, second;
419 419  * Lock – a flag to block the error until the device is restarted.
420 420  
421 -As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensor count error" is generated.
392 +As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensocount error" is generated.
422 422  
423 423  Error generation conditions:
424 424  
425 -* 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.
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.
426 426  
427 427  Conditions for removing the error:
428 428  
429 -* 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.
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.
430 430  
431 431  (% class="box warningmessage" %)
432 432  (((
433 -If there is the "T-sensor count error", the **“Critical error” **is generated**.**
404 +If there is the "Cell count error", the **“Critical error” **is generated**.**
434 434  )))
435 435  
436 436  === Logic count ===
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824 824  If there is the “HVIL error”, the **“Critical error”** is generated.
825 825  )))
826 826  
827 -=== Battery voltage ===
828 -
829 -The BMS Main 3 allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
830 -
831 -To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
832 -
833 -[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
834 -
835 -In this section:
836 -
837 -* Enable – a flag to enable the protection;
838 -* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
839 -* Delay before setting the error, second;
840 -* Delay before clearing the error, second;
841 -* Lock – a flag to block the error until the device is restarted.
842 -
843 -If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
844 -
845 -Error generation conditions:
846 -
847 -* 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.
848 -
849 -Conditions for removing the error:
850 -
851 -* 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.
852 -
853 -(% class="box warningmessage" %)
854 -(((
855 -If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
856 -)))
857 -
858 858  === Critical error ===
859 859  
860 860  Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
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