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Last modified by Admin on 2025/07/15 17:33
From version 49.2
edited by Admin
on 2024/12/11 11:21
Change comment: Update document after refactoring.
To version 64.1
edited by Admin
on 2025/03/18 12:22
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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 +(% class="box warningmessage" %)
11 +(((
12 +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.
13 +)))
14 +
15 +(% class="box errormessage" %)
16 +(((
17 +**The system is not designed to operate with batteries whose total voltage exceeds 1200 V.**
18 +)))
19 +
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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7 7  
8 8  [[image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
9 9  
10 -|**Parameter**|**Value**
11 -|Overall dimensions (length × width × height), mm|120 × 120 × 32
12 -|Mounting dimensions (length × width), mm|114 × 114
13 -|Mounting holes|M3
26 +(% style="width:494px" %)
27 +|**Parameter**|(% style="width:178px" %)**Value**
28 +|Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 32
29 +|Mounting dimensions (length × width), mm|(% style="width:178px" %)114 × 114
30 +|Mounting holes|(% style="width:178px" %)M3
14 14  
15 15  == Connection procedure ==
16 16  
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35 35  
36 36  === P1 – header for power supply ===
37 37  
55 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
56 +
38 38  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
39 39  
40 40  |**Pin**|**Name**|**Description**
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43 43  
44 44  === P15 – header for BMS Logic ===
45 45  
65 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
66 +
46 46  [[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
47 47  
48 48  |**Pin**|**Name**|**Description**
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53 53  
54 54  === P12 – header for current sensor ===
55 55  
77 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
78 +
56 56  [[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
57 57  
58 58  |**Pin**|**Name**|**Description**
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63 63  
64 64  === P13 – header for humidity sensor ===
65 65  
89 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
90 +
66 66  [[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
67 67  
68 68  |**Pin**|**Name**|**Description**
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73 73  
74 74  === P8 – header of relay 1 ===
75 75  
101 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
102 +
76 76  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
77 77  
78 78  By default, relay 1 is used to control the discharging contactor.
79 79  
80 80  |**Pin**|**Name**|**Description**
81 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
108 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
82 82  |**2**|**NO**|Normally open contact
83 83  
111 +Contactor connection example for all relays:
112 +
113 +[[image:1741619814065-850.png||height="189" width="252"]]
114 +
84 84  === P9 – header of relay 2 ===
85 85  
117 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
118 +
86 86  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
87 87  
88 88  By default, relay 2 is used to output the “Allow charging” signal.
89 89  
90 90  |**Pin**|**Name**|**Description**
91 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
124 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
92 92  |**2**|**NO**|Normally open contact
93 93  
127 +Contactor connection example: see relay 1.
128 +
94 94  === P6 – header of relay 3 ===
95 95  
131 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
132 +
96 96  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
97 97  
98 98  By default, relay 3 is used to control the charging contactor.
99 99  
100 100  |**Pin**|**Name**|**Description**
101 -|**1**|**V+**|Switching voltage (up to 55V, max 8A)
138 +|**1**|**V+**|Switching voltage up to 55V,
139 +up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
102 102  |**2**|**NO**|Normally open contact
103 103  
142 +Contactor connection example: see relay 1.
143 +
104 104  === P7 – header of relay 4 ===
105 105  
146 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
147 +
106 106  [[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
107 107  
108 108  By default, relay 4 is used to control the heater.
109 109  
110 110  |**Pin**|**Name**|**Description**
111 -|**1**|**V+**|Switching voltage (up to 55V, max 8A)
153 +|**1**|**V+**|Switching voltage up to 55V,
154 +up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
112 112  |**2**|**NO**|Normally open contact
113 113  
157 +Contactor connection example: see relay 1.
158 +
114 114  === P14 – header for CAN and RS-485 interfaces ===
115 115  
161 +Receptacle Housing: Molex 430250600. Terminals: Molex 43030
162 +
116 116  [[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
117 117  
118 118  (% style="width:641px" %)
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146 146  
147 147  === P11 – header for discrete inputs/outputs ===
148 148  
196 +Receptacle Housing: Molex 430251600. Terminals: Molex 43030
197 +
149 149  [[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
150 150  
151 151  |**Pin**|**Name**|**Description**
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