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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 69.1
edited by Admin
on 2025/07/15 17:31
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 +(% class="box errormessage" %)
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.
7 7  
8 -[[image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
24 +[[image:1752600650898-961.png||data-xwiki-image-style-alignment="center" height="546" width="450"]]
9 9  
10 10  (% style="width:494px" %)
11 11  |**Parameter**|(% style="width:178px" %)**Value**
12 -|Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 32
28 +|Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 17
13 13  |Mounting dimensions (length × width), mm|(% style="width:178px" %)114 × 114
14 14  |Mounting holes|(% style="width:178px" %)M3
15 15  
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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)
108 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
93 93  |**2**|**NO**|Normally open contact
94 94  
111 +Contactor connection example for all relays:
112 +
113 +[[image:1741619814065-850.png||height="189" width="252"]]
114 +
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)
124 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
105 105  |**2**|**NO**|Normally open contact
106 106  
127 +Contactor connection example: see relay 1.
128 +
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)
138 +|**1**|**V+**|Switching voltage up to 55V,
139 +up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
117 117  |**2**|**NO**|Normally open contact
118 118  
142 +Contactor connection example: see relay 1.
143 +
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)
153 +|**1**|**V+**|Switching voltage up to 55V,
154 +up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
129 129  |**2**|**NO**|Normally open contact
130 130  
157 +Contactor connection example: see relay 1.
158 +
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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