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Changes for page 3.2 Inputs and outputs

Last modified by Admin on 2025/02/24 11:11
From version 1.1
edited by Admin
on 2024/12/09 11:30
Change comment: There is no comment for this version
To version 3.1
edited by Admin
on 2025/01/28 14:38
Change comment: There is no comment for this version

Summary

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1 -drafts.BMS Mini S.3\. Configuration.WebHome
1 +Battery management systems.BMS Mini S.3\. Configuration.WebHome
Content
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29 29  
30 30  [[image:1733743676791-123.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="158" width="800"]]
31 31  
32 -
33 33  === Current sensor ===
34 34  
35 35  The BMS Mini device has an ability to measure battery current by an external Hall-Effect current sensor.
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75 75  * Invert – a flag to invert current values;
76 76  * Receive timeout – a timeout for receiving messages from BMS Current Sensor (if no data is being received from the current sensor during this time, the “Shunt offline” flag is set), millisecond;
77 77  * Mean value threshold – T,,M,, level, A (if module of instantaneous current (I,,I,,) which is received from the shunt sensor is between T,,M,, and T,,0,,, the BMS will use mean value of current I,,M,,; if I,,I,, is greater than T,,M,,, the BMS will use instantaneous value of current I,,I,,);
77 +* Zero threshold – T,,0,, level, A (if module of instantaneous current (I,,I,,) which is received from the shunt sensor is lower than T,,0,,, the BMS will assume that current flowing through the battery is zero);
78 78  
79 -Zero threshold – T,,0,, level, A (if module of instantaneous current (I,,I,,) which is received from the shunt sensor is lower than T,,0,,, the BMS will assume that current flowing through the battery is zero);
80 -
81 81  === Temperature sensor ===
82 82  
83 83  Temperature sensors settings are configured in the "Signals → Temperature sensors" section:
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110 110  
111 111  [[image:1733743676796-673.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="169" width="800"]]
112 112  
113 -
114 114  === MOSFETs ===
115 115  
116 116  The BMS Mini device has four MOSFET switches to drive contactors. For each switch, its assignment and inversion flag are set.
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141 141  
142 142  [[image:1733743676799-349.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="157" width="800"]]
143 143  
144 -
145 145  === Wire resistance compensation ===
146 146  
147 -The BMS Mini is powered directly from the battery. This causes the voltages of the first and last battery cells to be measured with an error, the magnitude of which is proportional to the current drawn by the BMS and the resistance of the wires connecting these cells to the BMS. To compensate for the cell voltage measurement error, the BMS Mini provides a wire resistance setting.
143 +The BMS Mini is powered directly from the battery. There is a special header X9 for this.
148 148  
145 +But it is possible to use the first and last battery cells wires from X8 header. This causes the voltages of those cells to be measured with an error, the magnitude of which is proportional to the current drawn by the BMS and the resistance of the wires connecting these cells to the BMS. To compensate for the cell voltage measurement error, the BMS Mini provides a wire resistance setting.
146 +
149 149  Setting the resistance of the wires connecting the first and last cells of the battery with the BMS is performed in the “Signals → Wire resistance compensation” section:
150 150  
151 151  [[image:1733743676800-295.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]