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Last modified by Admin on 2025/07/15 17:33
From version 55.1
edited by Admin
on 2025/02/20 12:59
Change comment: There is no comment for this version
To version 64.1
edited by Admin
on 2025/03/18 12:22
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 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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12 12  |Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 32
13 13  |Mounting dimensions (length × width), mm|(% style="width:178px" %)114 × 114
14 14  |Mounting holes|(% style="width:178px" %)M3
15 -|Headers P1, P6-P9 type |(% style="width:178px" %)Molex series Mini-Fit
16 -|Headers P11-P15 type |(% style="width:178px" %)Molex series Micro-Fit
17 17  
18 18  == Connection procedure ==
19 19  
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91 91  By default, relay 1 is used to control the discharging contactor.
92 92  
93 93  |**Pin**|**Name**|**Description**
94 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
108 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
95 95  |**2**|**NO**|Normally open contact
96 96  
111 +Contactor connection example for all relays:
112 +
113 +[[image:1741619814065-850.png||height="189" width="252"]]
114 +
97 97  === P9 – header of relay 2 ===
98 98  
99 99  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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103 103  By default, relay 2 is used to output the “Allow charging” signal.
104 104  
105 105  |**Pin**|**Name**|**Description**
106 -|**1**|**V+**|Switching voltage (up to 55V, max 2A)
124 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
107 107  |**2**|**NO**|Normally open contact
108 108  
127 +Contactor connection example: see relay 1.
128 +
109 109  === P6 – header of relay 3 ===
110 110  
111 111  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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115 115  By default, relay 3 is used to control the charging contactor.
116 116  
117 117  |**Pin**|**Name**|**Description**
118 -|**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)
119 119  |**2**|**NO**|Normally open contact
120 120  
142 +Contactor connection example: see relay 1.
143 +
121 121  === P7 – header of relay 4 ===
122 122  
123 123  Receptacle Housing: Molex 39012020. Terminals: Molex 5556
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127 127  By default, relay 4 is used to control the heater.
128 128  
129 129  |**Pin**|**Name**|**Description**
130 -|**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)
131 131  |**2**|**NO**|Normally open contact
132 132  
157 +Contactor connection example: see relay 1.
158 +
133 133  === P14 – header for CAN and RS-485 interfaces ===
134 134  
135 135  Receptacle Housing: Molex 430250600. Terminals: Molex 43030
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