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Last modified by Admin on 2025/07/15 17:33
From version 56.1
edited by Admin
on 2025/02/20 12:59
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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89 89  By default, relay 1 is used to control the discharging contactor.
90 90  
91 91  |**Pin**|**Name**|**Description**
92 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
110 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
93 93  |**2**|**NO**|Normally open contact
94 94  
113 +Contactor connection example for all relays:
114 +
115 +[[image:1741619814065-850.png||height="189" width="252"]]
116 +
95 95  === P9 – header of relay 2 ===
96 96  
97 97  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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101 101  By default, relay 2 is used to output the “Allow charging” signal.
102 102  
103 103  |**Pin**|**Name**|**Description**
104 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
126 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
105 105  |**2**|**NO**|Normally open contact
106 106  
129 +Contactor connection example: see relay 1.
130 +
107 107  === P6 – header of relay 3 ===
108 108  
109 109  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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113 113  By default, relay 3 is used to control the charging contactor.
114 114  
115 115  |**Pin**|**Name**|**Description**
116 -|**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)
117 117  |**2**|**NO**|Normally open contact
118 118  
144 +Contactor connection example: see relay 1.
145 +
119 119  === P7 – header of relay 4 ===
120 120  
121 121  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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125 125  By default, relay 4 is used to control the heater.
126 126  
127 127  |**Pin**|**Name**|**Description**
128 -|**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)
129 129  |**2**|**NO**|Normally open contact
130 130  
159 +Contactor connection example: see relay 1.
160 +
131 131  === P14 – header for CAN and RS-485 interfaces ===
132 132  
133 133  Receptacle Housing: Molex 430250600. Terminals: Molex 43030
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