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Changes for page 3.3 Control

Last modified by Admin on 2025/05/30 16:50
From version 2.1
edited by Admin
on 2024/12/12 17:21
Change comment: There is no comment for this version
To version 1.1
edited by Admin
on 2024/12/12 17:20
Change comment: There is no comment for this version

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3 3  111. General parameters
4 4  
5 5  General parameters of BMS Main 3X are configured in the «Control → General» section:
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8 8  
9 9  * Initialization delay – a delay before processing functions after finishing device initialization (initialization includes current sensors calibration and battery modules search), millisecond.
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13 13  111. Battery modules
14 14  
15 15  The BMS Main 3X allows up to 32 battery modules with BMS Main 3 onboard to be connected in parallel.
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27 27  Each module in a battery must have a unique address. You can change the address in the battery module settings in the “Connectivity → CAN” section of the BMS Main 3 settings.
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29 29  
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32 32  111. Calculation of battery parameters
33 33  
34 34  The BMS Main 3X device calculates battery parameters based on user settings.
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49 49  
50 50  Average SOH – SOH of the modular battery is taken equal to the arithmetic average of the SOH of the battery modules.
51 51  
52 -1.
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54 -111. Main contactor
55 55  
56 -The BMS Main 3X device controls the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in case of sealing of the charging or discharging contactors.
57 -
58 -The Main contactor algorithm supports the following modes:
59 -
60 -* Always on;
61 -* Automatic, when the main contactor closes by the internal charging and discharging algorithms at the same time with Precharging, Charging and Discharging contactors.
62 -
63 -
64 -In “Always on” mode, the main contactor closes if all the following is true:
65 -
66 -* “Charging” contactor is open;
67 -* “Discharging” contactor is open;
68 -
69 -* there are no errors.
70 -
71 -In “Always on” mode, the main contactor opens if “Charging” and “Discharging” contactors are open and any of the following is true:
72 -
73 -* “Charging current present” is set;
74 -* “Discharging current present” is set;
75 -* one or more errors persist.
76 -
77 -
78 -To change the parameters of the main contactor, select the "Control → Main contactor" section:
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80 -
81 -[[image:1734024081302-450.png]]
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83 -
84 -In this section:
85 -
86 -* Enable – a flag to enable the main contactor control;
87 -* Algorithm – main contactor control algorithm:
88 -** Always on – contactor is always closed;
89 -** Automatic – contactor closes by internal charge and discharge algorithms;
90 -* Time to keep the contactor closed before closing the others – a time for other contactors to be open after the main contactor is closed, millisecond;
91 -* Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, millisecond;
92 -* Keep the contactor open until the device is restarted – a flag for keeping the main contactor open until the system is reset;
93 -* Errors 1 (2) to open the main contactor – error flags that cause the contactor to open.
94 -
95 -
96 96  
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