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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:23
From version 1.95
edited by Admin
on 2025/02/24 15:38
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To version 6.4
edited by Admin
on 2025/02/26 12:04
Change comment: There is no comment for this version

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... ... @@ -43,6 +43,46 @@
43 43  * the current is positive (charging) or zero, and its modulo value is less than the “Tolerant charging current” value for the “Delay before clearing the error” time;
44 44  * the current is negative (discharging), and its modulo value is less than the “Tolerant discharging current” value for the “Delay before clearing the error” time.
45 45  
46 +=== Charge current limit ===
47 +
48 +The BMS Mini device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Mini S.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
49 +
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 +
52 +To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
53 +
54 +[[image:1740571132019-848.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="143" width="800"]]
55 +
56 +In this section:
57 +
58 +* Enable – a flag to enable the protection;
59 +* 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;
60 +* Region 1: Current difference – a value of maximum absolute current difference, A;
61 +* Region 2: Current difference – a value of maximum relative current excess, A;
62 +* Delay before setting the error, millisecond;
63 +* Delay before clearing the error, second;
64 +* Lock – a flag to block the error until the device is restarted.
65 +
66 +=== Discharge current limit ===
67 +
68 +The BMS Mini device can check if the discharging current exceeds the estimated limit based on the [[Discharge map>>doc:Battery management systems.BMS Mini S.3\. Configuration.3\.3 Control.WebHome||anchor="HDischargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
69 +
70 +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.
71 +
72 +To change the overcurrent protection of the battery, select the "Protections → Discharge current limit" section:
73 +
74 +[[image:1740571296344-411.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="151" width="800"]]
75 +
76 +In this section:
77 +
78 +* Enable – a flag to enable the protection;
79 +* 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;
80 +* Region 1: Current difference – a value of maximum absolute current difference, A;
81 +* Region 2: Current difference – a value of maximum relative current excess, A;
82 +* Delay before setting the error, millisecond;
83 +* Delay before clearing the error, second;
84 +* Lock – a flag to block the error until the device is restarted.
85 +
46 46  === Undervoltage ===
47 47  
48 48  The BMS Mini device implements battery protection from too low voltage on the cells.
... ... @@ -49,7 +49,7 @@
49 49  
50 50  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
51 51  
52 -[[image:1733748033237-837.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="127" width="800"]]
92 +[[image:1740571345293-460.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
53 53  
54 54  In this section:
55 55  
... ... @@ -56,6 +56,7 @@
56 56  * Enable – a flag to enable the protection;
57 57  * Minimum cell voltage, V;
58 58  * 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;
59 59  * Delay before setting the error, millisecond;
60 60  * Delay before clearing the error, second;
61 61  * Lock – a flag to block the error until the device is restarted.
... ... @@ -76,7 +76,7 @@
76 76  
77 77  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
78 78  
79 -[[image:1733748033238-995.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="138" width="800"]]
120 +[[image:1740571383842-536.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="147" width="800"]]
80 80  
81 81  In this section:
82 82  
... ... @@ -83,9 +83,9 @@
83 83  * Enable – a flag to enable the protection;
84 84  * Maximum cell voltage, V;
85 85  * Tolerant cell voltage, V;
127 +* 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;
86 86  * Delay before setting the error, millisecond;
87 87  * Delay before clearing the error, second;
88 -* Switch off the discharging contactor on error – a flag to open the discharging contactor when the "Overvoltage" error is generated;
89 89  * Lock – a flag to block the error until the device is restarted.
90 90  
91 91  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
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