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Wiki source code of 2. Installation and connection

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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 = Installation and connection =
3
4 == Installation procedure ==
5
6 The mounting location of the BMS Main 3 / BMS Main 3X device must be protected from mechanical particles (dust, dirt, large objects) and water. The installation location must provide easy access for subsequent connection to the device connectors.
7
8 Overall and mounting dimensions are shown in figure below.
9
10 (% data-widget="image" contenteditable="false" tabindex="-1" %)[[image:1733311711953-224.png||data-xwiki-image-style-alignment="center" height="566" width="775"]](% title="Click and drag to resize" %)​
11
12 |**Parameter**|**Value**
13 |Overall dimensions (length × width × height), mm|200 × 123 × 12
14 |Mounting dimensions (length × width), mm|194 × 114
15 |Mounting holes|M3
16
17 == Headers ==
18
19 The location and designation of connectors on the BMS Main 3 / BMS Main 3X device are shown below.
20
21 (% contenteditable="false" tabindex="-1" %)
22 (((
23 [[image:1732119505664-787.png||data-xwiki-image-style-alignment="center" height="417" width="684"]]
24 )))
25
26 (% class="box warningmessage" %)
27 (((
28 **Attention!**
29 All headers are shown from the device side!
30 )))
31
32 === X1 – header to power the device ===
33
34 (% class="wikigeneratedid" id="H" %)
35 (% data-widget="image" contenteditable="false" tabindex="-1" %)[[image:1732121673277-246.png||data-xwiki-image-style-alignment="center" height="85" width="200"]]
36
37 |**Pin**|**Name**|**Description**
38 |**1–2, 5–6**|**GND**|Ground
39 |**3**|**KEYRUN**|Power-on signal
40 |**4**|**CHARGE_ON**|Power-on signal (battery charge requirement)
41 |**7–8**|**VIN**|Power line (9-32V)
42
43 Power supply connection diagram:
44
45 (% aria-label="1732120054870-496.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732120054870-496.png||data-xwiki-image-style-alignment="center" height="169" width="327"]]
46
47 === X2 – header for contactors ===
48
49 (% aria-label="1732121695049-411.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732121695049-411.png||data-xwiki-image-style-alignment="center" height="87" width="267"]](% title="Click and drag to resize" %)​
50
51 |**Pin**|**Name**|**Description**
52 |**1–4, 8–9**|**GND**|Ground
53 |**5**|**CONT1_OUT**|Contactor control 1 (plus)
54 |**6**|**CONT2_OUT**|Contactor control 2 (plus)
55 |**7**|**CONT3_OUT**|Contactor control 3 (plus)
56 |**10**|**CONT4_OUT**|Contactor control 4 (plus)
57 |**11**|**CONT5_OUT**|Contactor control 5 (plus)
58 |**12**|**CONT6_OUT**|Contactor control 6 (plus)
59
60 Contactor connection diagram:
61
62 (% aria-label="1732121755886-234.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732121755886-234.png||data-xwiki-image-style-alignment="center" height="82" width="260"]]
63
64 === (% title="Click and drag to resize" %)​(%%)X3 – header for discrete inputs and outputs ===
65
66 (% aria-label="1732121811285-182.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732121811285-182.png||data-xwiki-image-style-alignment="center" height="94" width="531"]]
67
68 |**Pin**|**Name**|**Description**
69 |**1–8, 12, 16–17, 21**|**DIO_GND**|Ground of input and output signals
70 |**9**|**DIN1_SIGNAL**|Discrete input 1 “dry contact”
71 |**10**|**DIN2_SIGNAL**|Discrete input 2 “dry contact”
72 |**11**|**DIN3_SIGNAL**|Discrete input 3 “dry contact”
73 |**13**|**DIN4_SIGNAL**|Discrete input 4 “dry contact”
74 |**14**|**DIN5_SIGNAL**|Discrete input 5 “dry contact”
75 |**15**|**DIN6_SIGNAL**|Discrete input 6 “dry contact”
76 |**18**|**DIN7_VIN**|Discrete input 7 (signal detection with voltage 9-32V)
77 |**19**|**DIN8_VIN**|Discrete input 8 (signal detection with voltage 9-32V)
78 |**20**|**DOUT1_OD**|Discrete output 1 “open drain” (60 V, 1A)
79 |**22**|**DOUT2_OD**|Discrete output 2 “open drain” (60 V, 1A)
80 |**23**|**DOUT3_OD**|Discrete output 3 “open drain” (60 V, 1A)
81 |**24**|**DOUT4_OD**|Discrete output 4 “open drain” (60 V, 1A)
82
83 Connection diagram of a discrete input to a dry contact output:
84
85 (% aria-label="1732121887401-555.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732121887401-555.png||data-xwiki-image-style-alignment="center" height="63" width="196"]](% title="Click and drag to resize" %)​(%%)Connection diagram of a discrete input to an open collector output:
86
87 (% aria-label="1732122137116-973.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732122137116-973.png||data-xwiki-image-style-alignment="center" height="100" width="274"]](% title="Click and drag to resize" %)​(%%)Connection diagram for a discrete input for detecting a 9-32V signal:
88
89 (% aria-label="1732121926812-202.png image widget" data-widget="image" contenteditable="false" role="region" tabindex="-1" %)[[image:1732121926812-202.png||data-xwiki-image-style-alignment="center" height="76" width="242"]](% title="Click and drag to resize" %)​(%%)Connection diagram for discrete output:
90
91 === X4 – header for HVIL ===
92
93 [[image:1732122015188-642.png||data-xwiki-image-style-alignment="center" height="64" width="150"]]
94
95 |**Pin**|**Name**|**Description**
96 |**1**|**-**|Not used
97 |**2**|**HVIL_OUT**|Output of the current measurement circuit in the current loop (lower potential, measuring shunt output)
98 |**3**|**HVIL_IN**|Input of the current measurement circuit in the current loop (higher potential, measuring shunt input)
99 |**4**|**HVIL_PWR**|Current loop power supply (max 5V, 25mA)
100
101 If the BMS Main 3 / BMS Main 3X device generates current in a current loop, the current loop must be connected to the **HVIL_PWR** and **HVIL_IN** pins. If BMS Main 3 / BMS Main 3X is a passive current loop meter, then the current loop must be connected to the **HVIL_IN** and **HVIL_OUT** pins.
102
103 Connection diagram to the current loop:
104
105 === X5 – header for current and temperature sensors ===
106
107 [[image:1733311958053-469.png||data-xwiki-image-style-alignment="center" height="83" width="349"]]
108
109 (% style="width:539px" %)
110 |**Pin**|**Name**|(% style="width:402px" %)**Description**
111 |**1**|**CS1_5V**|(% style="width:402px" %)Current sensor 1 power line (5 V, max 50 mA)
112 |**2–6**|**GND**|(% style="width:402px" %)Ground
113 |**7**|**CS1_IN1**|(% style="width:402px" %)Current sensor 1 signal line (for a dual-range current sensor, High range output)
114 |**8**|**CS1_REF_IN2**|(% style="width:402px" %)Current sensor 1 reference voltage signal line (for a dual-range current sensor, Low range output)
115 |**9**|**CS2_5V**|(% style="width:402px" %)Current sensor 2 power line (5 V, max 50 mA)
116 |**10**|**CS2_IN1**|(% style="width:402px" %)Current sensor 2 signal line (for a dual-range current sensor, High range output)
117 |**11**|**CS2_REF_IN2**|(% style="width:402px" %)Current sensor 2 reference voltage signal line (for a dual-range current sensor, Low range output)
118 |**12**|**CS3_5V**|(% style="width:402px" %)Current sensor 3 power line (5 V, max 50 mA)
119 |**13**|**CS3_IN1**|(% style="width:402px" %)Current sensor 3 signal line (for a dual-range current sensor, High range output)
120 |**14**|**CS3_REF_IN2**|(% style="width:402px" %)Current sensor 3 reference voltage signal line (for a dual-range current sensor, Low range output)
121 |**15**|**TEMP1**|(% style="width:402px" %)Temperature sensor 1 signal line (NTC-thermistor 100 kOhm)
122 |**16**|**TEMP2**|(% style="width:402px" %)Temperature sensor 2 signal line (NTC-thermistor 100 kOhm)
123
124 Current sensor connection diagram (using the example of LEM HASS 100-S):
125
126 [[image:1733316158040-285.png||data-xwiki-image-style-alignment="center" height="170" width="412"]]
127
128 Current sensor connection diagram (using the example of LEM DHAB S/118):
129
130 [[image:1733316170709-142.png||data-xwiki-image-style-alignment="center" height="171" width="413"]]
131
132 NTC-thermistor connection diagram:
133
134 [[image:1733316189878-329.png||data-xwiki-image-style-alignment="center" height="130" width="260"]]
135
136 === X6 – header for CAN1 and RS-485-1 (external buses) ===
137
138 [[image:1733316218666-814.png||data-xwiki-image-style-alignment="center" height="55" width="162"]]
139
140 |**Pin**|**Name**|**Description**
141 |**1**|**CAN1_H**|CAN1 line H for communication with external equipment
142 |**2**|**CAN1_L**|CAN1 line L for communication with external equipment
143 |**3**|**CAN1_RS485_1_GND**|Ground of CAN1 and RS-485-1
144 |**4**|**RS485_1_A**|RS-485-1 line A for communication with external equipment
145 |**5**|**RS485_1_B**|RS-485-1 line B for communication with external equipment
146
147 Connection diagram to the CAN1 bus:
148
149 [[image:1733316241362-843.png||data-xwiki-image-style-alignment="center" height="153" width="410"]]
150
151 Connection diagram to the RS-485-1 bus:
152
153 [[image:1733316483336-290.png||data-xwiki-image-style-alignment="center" height="152" width="417"]]
154
155 === X7 – header for CAN2 (internal bus) ===
156
157 [[image:1733316517741-698.png||data-xwiki-image-style-alignment="center" height="59" width="144"]]
158
159 |**Pin**|**Name**|**Description**
160 |**1**|**CAN2_H**|CAN2 line H for communication with other BMS devices
161 |**2**|**CAN2_L**|CAN2 line L for communication with other BMS devices
162 |**3**|**GND**|Ground
163 |**4**|**CAN2_5V**|CAN2 power line (5 V, max 400 mA)
164
165 Connection diagram to the CAN2 bus (using the example of connecting BMS Display 1.2):
166
167 [[image:1733316563149-458.png||data-xwiki-image-style-alignment="center" height="158" width="392"]]
168
169 === X8 – header for CAN3 ===
170
171 [[image:1733316517741-698.png||data-xwiki-image-style-alignment="center" height="59" width="144"]]
172
173 |**Pin**|**Name**|**Description**
174 |**1**|**CAN3_H**|CAN3 line H
175 |**2**|**CAN3_L**|CAN3 line L
176 |**3**|**GND**|Ground
177 |**4**|**CAN3_5V**|CAN3 power line (5 V, max 400 mA)
178
179 (% class="box infomessage" %)
180 (((
181 **Note:**
182 CAN3 operates differently depending on used firmware:
183
184 * **BMS Main 3:** CAN3 bus is reserved;
185 * **BMS Main 3X:** CAN3 bus is used to connect with BMS Main 3 inside parallel strings. Diagram for connecting battery modules to the CAN3 bus:
186
187 [[image:1733316622613-181.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="417"]]
188 )))
189
190 === X9 – header for BMS Logic (RS-485-2) ===
191
192 [[image:1733316517741-698.png||data-xwiki-image-style-alignment="center" height="59" width="144"]]
193
194 |**Pin**|**Name**|**Description**
195 |**1**|**LOGIC_B**|RS-485 line B for communication with BMS Logic
196 |**2**|**LOGIC_A**|RS-485 line A for communication with BMS Logic
197 |**3**|**GND**|Ground
198 |**4**|**LOGIC_5V**|BMS Logic power line (+5V, max 400mA)
199
200 (% class="box infomessage" %)
201 (((
202 **Note:**
203 RS-485-2 operates differently depending on used firmware:
204
205 * **BMS Main 3X:** RS-485-2 bus is reserved;
206 * **BMS Main 3:** RS-485-2 bus is used to connect with BMS Logics in a battery pack. Connection diagram for BMS Logic devices:
207
208 [[image:1733316674363-604.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="163" width="400"]]
209 )))
210
211 === X10 – miniUSB connector ===
212
213 The miniUSB connector is used to configure the parameters of the BMS Main 3 / BMS Main 3X device.
214
215 === X11 – header for high-voltage bus before contactors (plus) ===
216
217 [[image:1733316780753-798.png||data-xwiki-image-style-alignment="center" height="60" width="91"]]
218
219 |**Pin**|**Name**|**Description**
220 |**1**|**IN1+**|Plus of the high-voltage bus (before contactors)
221 |**2**|**IN1+**|Plus of the high-voltage bus (before contactors)
222
223 (% class="box warningmessage" %)
224 (((
225 The connected voltage must not exceed 1000V.
226 )))
227
228 === X12 – header for high-voltage bus before contactors (minus) ===
229
230 [[image:1733316843397-336.png||data-xwiki-image-style-alignment="center" height="53" width="79"]]
231
232 |**Pin**|**Name**|**Description**
233 |**1**|**IN1-**|Minus of the high-voltage bus (before contactors)
234 |**2**|**IN1-**|Minus of the high-voltage bus (before contactors)
235
236 (% class="box warningmessage" %)
237 (((
238 The connected voltage must not exceed 1000V.
239 )))
240
241 === X13 – header for high-voltage bus after contactors (plus) ===
242
243 [[image:1733316780753-798.png||data-xwiki-image-style-alignment="center" height="60" width="91"]]
244
245 |**Pin**|**Name**|**Description**
246 |**1**|**IN2+**|Plus of the high-voltage bus (after contactors)
247 |**2**|**IN2+**|Plus of the high-voltage bus (after contactors)
248
249 (% class="box warningmessage" %)
250 (((
251 The connected voltage must not exceed 1000V.
252 )))
253
254 === X14 – header for high-voltage bus after contactors (minus) ===
255
256 [[image:1733316843397-336.png||data-xwiki-image-style-alignment="center" height="53" width="79"]]
257
258 |**Pin**|**Name**|**Description**
259 |**1**|**IN2-**|Minus of the high-voltage bus (after contactors)
260 |**2**|**IN2-**|Minus of the high-voltage bus (after contactors)
261
262 (% class="box warningmessage" %)
263 (((
264 The connected voltage must not exceed 1000V.
265 )))
266
267 === J1 – jumper for switching RS-485-1 bus terminal resistor ===
268
269 [[image:1733316982359-759.png||data-xwiki-image-style-alignment="center" height="77" width="148"]]
270
271 To connect a terminal resistor between the **RS485_1_A** and **RS485_1_B** lines, install a jumper. The jumper is installed according to the table:
272
273 |**Pin**|**Name**|**Description**
274 |**1-2**|**120 Ohm**|The 120 Ohm terminal resistor of the RS-485-1 bus is connected
275 |**2-3**|**-**|The 120 Ohm terminal resistor of the RS-485-1 bus is disconnected
276
277 === J2 – jumper for switching CAN1 bus terminal resistor ===
278
279
280 [[image:1733316982359-759.png||data-xwiki-image-style-alignment="center" height="77" width="148"]]To connect a terminal resistor between the **CAN1_H** and **CAN1_L** lines, install a jumper. The jumper is installed according to the table:
281
282 |**Pin**|**Name**|**Description**
283 |**1-2**|**120 Ohm**|The 120 Ohm terminal resistor of the CAN1 bus is connected
284 |**2-3**|**-**|The 120 Ohm terminal resistor of the CAN1 bus is disconnected
285
286 === J3 – jumper for switching CAN2 bus terminal resistor ===
287
288
289 [[image:1733316982359-759.png||data-xwiki-image-style-alignment="center" height="77" width="148"]]To connect a terminal resistor between the **CAN2_H** and **CAN2_L** lines, install a jumper. The jumper is installed according to the table:
290
291 |**Pin**|**Name**|**Description**
292 |**1-2**|**120 Ohm**|The 120 Ohm terminal resistor of the CAN2 bus is connected
293 |**2-3**|**-**|The 120 Ohm terminal resistor of the CAN2 bus is disconnected
294
295 === J5, J6 – jumpers for emergency opening of contactors when removing discrete input signals DIN7, DIN8 ===
296
297 The BMS Main 3 / BMS Main 3X device implements a circuit for hardware opening of power contactors when the discrete input signal DIN7 and/or DIN8 (voltage level 9-32V) is removed. To enable this function, jumper J5 and/or J6 must be installed.
298
299 == Indicators ==
300
301 === DS1 – LED indicating device power ===
302
303 |**State**|**Description**
304 |**Lights up green**|Device power (+5V) is present
305 |**Doesn’t light up**|No device power
306
307 === DS2 – LED indicating device work ===
308
309 |**State**|**Description**
310 |**Blinking green**|Executing the battery management program
311 |**No blinking**|Program execution error
312
313 === DS3 – LED indicating interaction with BMS Logic ===
314
315 |**State**|**Description**
316 |**Blinking yellow**|The device interacts with BMS Logic devices
317 |**No blinking**|-
318
319 === DS4 – LED indicating loss of connection with BMS Logic ===
320
321 |**State**|**Description**
322 |**Blinking/lights up red**|Communication with one or more BMS Logic devices is lost
323 |**No blinking**|Communication with BMS Logic is stable
324
325 === DS5-DS10 – LEDs indicating contactor switches 1-6 ===
326
327 |**State**|**Description**
328 |**Lights up green**|The switch supplies voltage to the contactor winding
329 |**Doesn’t light up**|The switch doesn’t supply voltage to the contactor winding
330
331 === DS11 – LED indicating the presence of power supply for contactors ===
332
333 |**State**|**Description**
334 |**Lights up green**|Power supply for contactor switches (9-32V) is present
335 |**Doesn’t light up**|Power supply for contactor switches (9-32V) is not present
336
337 == Connection procedure ==
338
339 (% class="box warningmessage" %)
340 (((
341 Before connection, configure the device (see [[Settings>>doc:Battery management systems.BMS Main 3.3\. Settings.WebHome]]). Correct operation of the BMS system is only possible with correct configuration.
342 )))
343
344 All operations to connect the device must be carried out with the supply voltage removed.
345
346 * Connect the power contactors to header X2.
347 * Connect one or more current sensors, as well as external temperature sensors (if necessary) to header X5.
348 * Connect BMS Logic devices to header X9.
349 * Connect digital inputs and outputs (if necessary) to header X3.
350 * Connect the high voltage bus (if necessary) to headers X11-X14.
351 * Connect the high-voltage network integrity circuit (if necessary) to header X4.
352 * Connect external devices (if necessary) to header X6.
353 * Connect other devices (BMS Indication, BMS Display, if necessary) to header X7.
354 * If the BMS Main 3 / BMS Main 3X is the last device on the RS-485-1, CAN1, or CAN2 bus, install jumpers J1-J3.
355 * Connect an external power supply to header X1. The device will start when there is a 9-32V power supply and one of the KEYRUN or CHARGE_ON signals with a voltage of more than 8.5V is supplied.