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Last modified by Admin on 2025/07/15 17:33
From version 63.1
edited by Admin
on 2025/03/18 12:17
Change comment: There is no comment for this version
To version 56.1
edited by Admin
on 2025/02/20 12:59
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 -
22 22  == Installation procedure ==
23 23  
24 24  Overall and mounting dimensions of the BMS Main 2.1 are shown below.
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107 107  By default, relay 1 is used to control the discharging contactor.
108 108  
109 109  |**Pin**|**Name**|**Description**
110 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
92 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
111 111  |**2**|**NO**|Normally open contact
112 112  
113 -Contactor connection example for all relays:
114 -
115 -[[image:1741619814065-850.png||height="189" width="252"]]
116 -
117 117  === P9 – header of relay 2 ===
118 118  
119 119  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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123 123  By default, relay 2 is used to output the “Allow charging” signal.
124 124  
125 125  |**Pin**|**Name**|**Description**
126 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
104 +|**1**|**V+**|Switching voltage (up to 55V, max 2A)
127 127  |**2**|**NO**|Normally open contact
128 128  
129 -Contactor connection example: see relay 1.
130 -
131 131  === P6 – header of relay 3 ===
132 132  
133 133  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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137 137  By default, relay 3 is used to control the charging contactor.
138 138  
139 139  |**Pin**|**Name**|**Description**
140 -|**1**|**V+**|Switching voltage up to 55V,
141 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
116 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
142 142  |**2**|**NO**|Normally open contact
143 143  
144 -Contactor connection example: see relay 1.
145 -
146 146  === P7 – header of relay 4 ===
147 147  
148 148  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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152 152  By default, relay 4 is used to control the heater.
153 153  
154 154  |**Pin**|**Name**|**Description**
155 -|**1**|**V+**|Switching voltage up to 55V,
156 -up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
128 +|**1**|**V+**|Switching voltage (up to 55V, max 8A)
157 157  |**2**|**NO**|Normally open contact
158 158  
159 -Contactor connection example: see relay 1.
160 -
161 161  === P14 – header for CAN and RS-485 interfaces ===
162 162  
163 163  Receptacle Housing: Molex 430250600. Terminals: Molex 43030
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