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Last modified by Admin on 2025/07/15 17:33
From version 49.3
edited by Admin
on 2025/02/06 11:26
Change comment: There is no comment for this version
To version 63.1
edited by Admin
on 2025/03/18 12:17
Change comment: There is no comment for this version

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1 1  (% data-numbered-headings-start="2" style="--numbered-headings-start: 1;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
2 2  = Installation and connection =
3 3  
4 +== Safety rules ==
5 +
6 +To perform the protection functions, the BMS must be able to disconnect the battery from the load and charger. To do this, at least one contactor able to break the load and charge circuits must be connected to the BMS.
7 +
8 +Before use, **configure the system**. Proper operation of the BMS is possible only if it is correctly configured.
9 +
10 +It is not recommended to use the system in batteries formed by several series of cells connected in parallel. To increase capacity, it is recommended to connect several cells in parallel groups, and then connect the groups in series.
11 +
12 +(% class="box warningmessage" %)
13 +(((
14 +The BMS can be connected to batteries with life-threatening and health-hazardous voltage levels. When working with high-voltage batteries, observe electrical safety regulations, use safety glasses, protective clothing, insulated tools and appliances. To prevent the damage of device avoid electrostatic discharges while working with the battery.
15 +)))
16 +
17 +(% class="box errormessage" %)
18 +(((
19 +**The system is not designed to operate with batteries whose total voltage exceeds 1200 V.**
20 +)))
21 +
4 4  == Installation procedure ==
5 5  
6 6  Overall and mounting dimensions of the BMS Main 2.1 are shown below.
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12 12  |Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 32
13 13  |Mounting dimensions (length × width), mm|(% style="width:178px" %)114 × 114
14 14  |Mounting holes|(% style="width:178px" %)M3
15 -|Connectors type|(% style="width:178px" %)Molex MiniFit (P1, P6)
16 16  
17 17  == Connection procedure ==
18 18  
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37 37  
38 38  === P1 – header for power supply ===
39 39  
57 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
58 +
40 40  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
41 41  
42 42  |**Pin**|**Name**|**Description**
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45 45  
46 46  === P15 – header for BMS Logic ===
47 47  
67 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
68 +
48 48  [[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
49 49  
50 50  |**Pin**|**Name**|**Description**
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55 55  
56 56  === P12 – header for current sensor ===
57 57  
79 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
80 +
58 58  [[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
59 59  
60 60  |**Pin**|**Name**|**Description**
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65 65  
66 66  === P13 – header for humidity sensor ===
67 67  
91 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
92 +
68 68  [[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
69 69  
70 70  |**Pin**|**Name**|**Description**
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75 75  
76 76  === P8 – header of relay 1 ===
77 77  
103 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
104 +
78 78  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
79 79  
80 80  By default, relay 1 is used to control the discharging contactor.
81 81  
82 82  |**Pin**|**Name**|**Description**
83 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
110 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
84 84  |**2**|**NO**|Normally open contact
85 85  
113 +Contactor connection example for all relays:
114 +
115 +[[image:1741619814065-850.png||height="189" width="252"]]
116 +
86 86  === P9 – header of relay 2 ===
87 87  
119 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
120 +
88 88  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
89 89  
90 90  By default, relay 2 is used to output the “Allow charging” signal.
91 91  
92 92  |**Pin**|**Name**|**Description**
93 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
126 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
94 94  |**2**|**NO**|Normally open contact
95 95  
129 +Contactor connection example: see relay 1.
130 +
96 96  === P6 – header of relay 3 ===
97 97  
133 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
134 +
98 98  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
99 99  
100 100  By default, relay 3 is used to control the charging contactor.
101 101  
102 102  |**Pin**|**Name**|**Description**
103 -|**1**|**V+**|Switching voltage (up to 55V, max 8A)
140 +|**1**|**V+**|Switching voltage up to 55V,
141 +up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
104 104  |**2**|**NO**|Normally open contact
105 105  
144 +Contactor connection example: see relay 1.
145 +
106 106  === P7 – header of relay 4 ===
107 107  
148 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
149 +
108 108  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
109 109  
110 110  By default, relay 4 is used to control the heater.
111 111  
112 112  |**Pin**|**Name**|**Description**
113 -|**1**|**V+**|Switching voltage (up to 55V, max 8A)
155 +|**1**|**V+**|Switching voltage up to 55V,
156 +up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
114 114  |**2**|**NO**|Normally open contact
115 115  
159 +Contactor connection example: see relay 1.
160 +
116 116  === P14 – header for CAN and RS-485 interfaces ===
117 117  
163 +Receptacle Housing: Molex 430250600. Terminals: Molex 43030
164 +
118 118  [[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
119 119  
120 120  (% style="width:641px" %)
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148 148  
149 149  === P11 – header for discrete inputs/outputs ===
150 150  
198 +Receptacle Housing: Molex 430251600. Terminals: Molex 43030
199 +
151 151  [[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
152 152  
153 153  |**Pin**|**Name**|**Description**
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