Skip to Content

Wiki source code of 2. Installation and connection

Version 1.1 by Admin on 2024/12/02 14:40
Hide last authors
Admin 1.1 1 == ​​​​​2.1 Installation procedure ==
2
3 The mounting area of the BMS Logic 18 must be protected from mechanical particles (dust, dirt, large objects) and water. The BMS Logic 18 is recommended to be placed close to the cells it controls, but away from high current circuits to reduce interference to measuring circuits and increase overall reliability of installation.
4
5 The installation site must provide convenient access for subsequent connection to the device’s headers.
6
7 The BMS Logic 18 has a heat sink to dissipate the heat generated during the balancing of the cells. When used in enclosed enclosures, heat must be removed from the sink, otherwise it may damage the device.
8
9 Overall and mounting dimensions of the BMS Logic 18 are shown below.
10
11 [[image:1733150108388-179.png||data-xwiki-image-style-alignment="center" height="384" width="555"]]
12
13 |**Parameter**|**Value**
14 | (((
15 Overall dimensions (length × width × height), mm
16 )))|214 × 140 × 16
17 |Mounting dimensions (length × width), mm|198 × 132
18 |Mounting holes|M4
19 |Headers X1-X5 type|Molex series Micro-Fit
20
21 == (% style="color:#333333" %)2.2 (%%)Headers ==
22
23
24
25
26
27
28
29 == ==
30
31 The BMS Logic 18 is designed to measure temperature and voltage of 18 battery cells.
32
33 [[image:1733150257403-684.png||data-xwiki-image-style-alignment="center" height="376" width="640"]]
34
35 === 2.2.1 X1 – header for cells ===
36
37 [[image:1733150257406-647.jpeg||data-xwiki-image-style-alignment="center" height="76" width="268"]]
38
39 |**Pin**|**Name**|**Description**
40 |**1**|**V-**|Minus of the cell stack
41 |**2**|**C2**|Cell #2
42 |**3**|**C4**|Cell #4
43 |**4**|**C6**|Cell #6
44 |**5**|**C8**|Cell #8
45 |**6**|**C10**|Cell #10
46 |**7**|**C12**|Cell #12
47 |**8**|**C14**|Cell #14
48 |**9**|**C16**|Cell #16
49 |**10**|**C18**|Cell #18 (maximum potential of the cell stack)
50 |**11**|-|-
51 |**12**|**C1**|Cell #1 (minimum potential with respect to V-)
52 |**13**|**C3**|Cell #3
53 |**14**|**C5**|Cell #5
54 |**15**|**C7**|Cell #7
55 |**16**|**C9**|Cell #9
56 |**17**|**C11**|Cell #11
57 |**18**|**C13**|Cell #13
58 |**19**|**C15**|Cell #15
59 |**20**|**C17**|Cell #17
60
61 === X2 – header 1 for temperature sensors ===
62
63 [[image:1733150257408-172.jpeg||data-xwiki-image-style-alignment="center"]]
64
65 |**Pin**|**Name**|**Description**
66 |**1**|**TEMPG9**|Ground of the thermistor #9
67 |**2**|**TEMPG8**|Ground of the thermistor #8
68 |**3**|**TEMPG7**|Ground of the thermistor #7
69 |**4**|**TEMPG6**|Ground of the thermistor #6
70 |**5**|**TEMPG5**|Ground of the thermistor #5
71 |**6**|**TEMPG4**|Ground of the thermistor #4
72 |**7**|**TEMPG3**|Ground of the thermistor #3
73 |**8**|**TEMPG2**|Ground of the thermistor #2
74 |**9**|**TEMPG1**|Ground of the thermistor #1
75 |**10**|**TEMP9**|Signal from the thermistor #9
76 |**11**|**TEMP8**|Signal from the thermistor #8
77 |**12**|**TEMP7**|Signal from the thermistor #7
78 |**13**|**TEMP6**|Signal from the thermistor #6
79 |**14**|**TEMP5**|Signal from the thermistor #5
80 |**15**|**TEMP4**|Signal from the thermistor #4
81 |**16**|**TEMP3**|Signal from the thermistor #3
82 |**17**|**TEMP2**|Signal from the thermistor #2
83 |**18**|**TEMP1**|Signal from the thermistor #1
84
85
86 1.
87 11.
88 111. X3 – header 2 for temperature sensors
89
90
91 [[image:1733150257410-796.jpeg]]
92
93 |**Pin**|**Name**|**Description**
94 |**1**|**TEMPG18**|Ground of the thermistor #18
95 |**2**|**TEMPG17**|Ground of the thermistor #17
96 |**3**|**TEMPG16**|Ground of the thermistor #16
97 |**4**|**TEMPG15**|Ground of the thermistor #15
98 |**5**|**TEMPG14**|Ground of the thermistor #14
99 |**6**|**TEMPG13**|Ground of the thermistor #13
100 |**7**|**TEMPG12**|Ground of the thermistor #12
101 |**8**|**TEMPG11**|Ground of the thermistor #11
102 |**9**|**TEMPG10**|Ground of the thermistor #10
103 |**10**|**TEMP18**|Signal from the thermistor #18
104 |**11**|**TEMP17**|Signal from the thermistor #17
105 |**12**|**TEMP16**|Signal from the thermistor #16
106 |**13**|**TEMP15**|Signal from the thermistor #15
107 |**14**|**TEMP14**|Signal from the thermistor #14
108 |**15**|**TEMP13**|Signal from the thermistor #13
109 |**16**|**TEMP12**|Signal from the thermistor #12
110 |**17**|**TEMP11**|Signal from the thermistor #11
111 |**18**|**TEMP10**|Signal from the thermistor #10
112
113
114 1.
115 11.
116 111. X4, X5 – headers for communication with BMS Main
117
118 [[image:file:///C:/Users/INASIB~~1/AppData/Local/Temp/msohtmlclip1/01/clip_image005.emz]]
119
120 |**Pin**|**Name**|**Description**
121 |**1**|**RS485_A**|RS-485 line A for communication with the BMS Main
122 |**2**|**RS485_B**|RS-485 line B for communication with the BMS Main
123 |**3**|**+5V**|Supply voltage 5V
124 |**4**|**GND**|Ground
125
126
127 1.
128 11.
129 111. SWD1 – address switch
130
131 |**Switch number**|**Description**
132 |**1**|The first (the lowest) bit of the address. Position ON - bit is 1
133 |**2**|The second bit is the address. Position ON - bit is 1
134 |**3**|The third bit of the address. Position ON - bit is 1
135 |**4**|The fourth bit of the address. Position ON - bit is 1
136 |**5**|The fifth (the highest) bit of the address. Position ON - bit is 1
137
138
139 **Note – There is no SWD1 switch in the recent revisions of the BMS Logic 18. The device address must be configured in the settings **(see the section 4.2 Configuration procedure).
140
141
142 1.
143 11.
144 111. SWD2 – RS-485 termination resistor switch
145
146 To connect the termination resistor between the **RS485_A** and **RS485_B** lines, switch SWD2 to the ON position.
147
148
149 **Note – There is no SWD2 switch in the recent revisions of the BMS Logic 18. Connect a 120 Ohm termination resistor directly to the X5 connector between the lines RS485_A and RS485_B.**
150
151
152 1.
153 11.
154 111. DS1 – mode indicator
155
156 |**State**|**Description**
157 |**Blinking**|Connection between the BMS Main and the device is established
158 |**Short flashing (~~50 milliseconds in a second)**|The device is measuring voltage and temperature. No communication between the BMS Main and the device
159 |**Long flashing (1 second in a 2 second period)**|The device is in the bootloader mode
160
161