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Last modified by Admin on 2025/07/15 17:33
From version 58.3
edited by Admin
on 2025/03/10 15:14
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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92 92  |**1**|**V+**|Switching voltage (up to 55V, max 3A)
93 93  |**2**|**NO**|Normally open contact
94 94  
95 -Contactor
113 +Contactor connection example for all relays:
96 96  
115 +[[image:1741619814065-850.png||height="189" width="252"]]
116 +
97 97  === P9 – header of relay 2 ===
98 98  
99 99  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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106 106  |**1**|**V+**|Switching voltage (up to 55V, max 3A)
107 107  |**2**|**NO**|Normally open contact
108 108  
129 +Contactor connection example: see relay 1.
130 +
109 109  === P6 – header of relay 3 ===
110 110  
111 111  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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119 119  up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
120 120  |**2**|**NO**|Normally open contact
121 121  
144 +Contactor connection example: see relay 1.
145 +
122 122  === P7 – header of relay 4 ===
123 123  
124 124  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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132 132  up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
133 133  |**2**|**NO**|Normally open contact
134 134  
159 +Contactor connection example: see relay 1.
160 +
135 135  === P14 – header for CAN and RS-485 interfaces ===
136 136  
137 137  Receptacle Housing: Molex 430250600. Terminals: Molex 43030
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