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Changes for page 3.4 Protections

Last modified by Admin on 2025/04/09 12:23
From version 1.96
edited by Admin
on 2025/02/24 15:39
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To version 5.1
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on 2025/02/26 12:02
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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]]
75 +
46 46  === Undervoltage ===
47 47  
48 48  The BMS Mini device implements battery protection from too low voltage on the cells.
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