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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 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 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 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 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.
186
187 Diagram for connecting battery modules to the CAN3 bus:
188
189 [[image:1733316622613-181.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="153" width="417"]]
190 )))
191
192 === X9 – header for BMS Logic (RS-485-2) ===
193
194 [[image:1733316517741-698.png||data-xwiki-image-style-alignment="center" height="59" width="144"]]
195
196 |**Pin**|**Name**|**Description**
197 |**1**|**LOGIC_B**|RS-485 line B for communication with BMS Logic
198 |**2**|**LOGIC_A**|RS-485 line A for communication with BMS Logic
199 |**3**|**GND**|Ground
200 |**4**|**LOGIC_5V**|BMS Logic power line (+5V, max 400mA)
201
202 Connection diagram for BMS Logic devices:
203
204 [[image:1733316674363-604.png||data-xwiki-image-style-alignment="center" height="163" width="400"]]
205
206 === X10 – miniUSB connector ===
207
208 The miniUSB connector is used to configure the parameters of the BMS Main 3 device.
209
210 === X11 – header for high-voltage bus before contactors (plus) ===
211
212 [[image:1733316780753-798.png||data-xwiki-image-style-alignment="center" height="60" width="91"]]
213
214 |**Pin**|**Name**|**Description**
215 |**1**|**IN1+**|Plus of the high-voltage bus (before contactors)
216 |**2**|**IN1+**|Plus of the high-voltage bus (before contactors)
217
218 (% class="box warningmessage" %)
219 (((
220 The connected voltage must not exceed 1000V.
221 )))
222
223 === X12 – header for high-voltage bus before contactors (minus) ===
224
225 [[image:1733316843397-336.png||data-xwiki-image-style-alignment="center" height="53" width="79"]]
226
227 |**Pin**|**Name**|**Description**
228 |**1**|**IN1-**|Minus of the high-voltage bus (before contactors)
229 |**2**|**IN1-**|Minus of the high-voltage bus (before contactors)
230
231 (% class="box warningmessage" %)
232 (((
233 The connected voltage must not exceed 1000V.
234 )))
235
236 === X13 – header for high-voltage bus after contactors (plus) ===
237
238 [[image:1733316780753-798.png||data-xwiki-image-style-alignment="center" height="60" width="91"]]
239
240 |**Pin**|**Name**|**Description**
241 |**1**|**IN2+**|Plus of the high-voltage bus (after contactors)
242 |**2**|**IN2+**|Plus of the high-voltage bus (after contactors)
243
244 (% class="box warningmessage" %)
245 (((
246 The connected voltage must not exceed 1000V.
247 )))
248
249 === X14 – header for high-voltage bus after contactors (minus) ===
250
251 [[image:1733316843397-336.png||data-xwiki-image-style-alignment="center" height="53" width="79"]]
252
253 |**Pin**|**Name**|**Description**
254 |**1**|**IN2-**|Minus of the high-voltage bus (after contactors)
255 |**2**|**IN2-**|Minus of the high-voltage bus (after contactors)
256
257 (% class="box warningmessage" %)
258 (((
259 The connected voltage must not exceed 1000V.
260 )))
261
262 === J1 – jumper for switching RS-485-1 bus terminal resistor ===
263
264 [[image:1733316982359-759.png||data-xwiki-image-style-alignment="center" height="77" width="148"]]
265
266 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:
267
268 |**Pin**|**Name**|**Description**
269 |**1-2**|**120 Ohm**|The 120 Ohm terminal resistor of the RS-485-1 bus is connected
270 |**2-3**|**-**|The 120 Ohm terminal resistor of the RS-485-1 bus is disconnected
271
272 === J2 – jumper for switching CAN1 bus terminal resistor ===
273
274
275 [[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:
276
277 |**Pin**|**Name**|**Description**
278 |**1-2**|**120 Ohm**|The 120 Ohm terminal resistor of the CAN1 bus is connected
279 |**2-3**|**-**|The 120 Ohm terminal resistor of the CAN1 bus is disconnected
280
281 === J3 – jumper for switching CAN2 bus terminal resistor ===
282
283
284 [[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:
285
286 |**Pin**|**Name**|**Description**
287 |**1-2**|**120 Ohm**|The 120 Ohm terminal resistor of the CAN2 bus is connected
288 |**2-3**|**-**|The 120 Ohm terminal resistor of the CAN2 bus is disconnected
289
290 === J5, J6 – jumpers for emergency opening of contactors when removing discrete input signals DIN7, DIN8 ===
291
292 The BMS Main 3 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.
293
294 == Indicators ==
295
296 === DS1 – LED indicating device power ===
297
298 |**State**|**Description**
299 |**Lights up green**|Device power (+5V) is present
300 |**Doesn’t light up**|No device power
301
302 === DS2 – LED indicating device work ===
303
304 |**State**|**Description**
305 |**Blinking green**|Executing the battery management program
306 |**No blinking**|Program execution error
307
308 === DS3 – LED indicating interaction with BMS Logic ===
309
310 |**State**|**Description**
311 |**Blinking yellow**|The device interacts with BMS Logic devices
312 |**No blinking**|-
313
314 === DS4 – LED indicating loss of connection with BMS Logic ===
315
316 |**State**|**Description**
317 |**Blinking/lights up red**|Communication with one or more BMS Logic devices is lost
318 |**No blinking**|Communication with BMS Logic is stable
319
320 === DS5-DS10 – LEDs indicating contactor switches 1-6 ===
321
322 |**State**|**Description**
323 |**Lights up green**|The switch supplies voltage to the contactor winding
324 |**Doesn’t light up**|The switch doesn’t supply voltage to the contactor winding
325
326 === DS11 – LED indicating the presence of power supply for contactors ===
327
328 |**State**|**Description**
329 |**Lights up green**|Power supply for contactor switches (9-32V) is present
330 |**Doesn’t light up**|Power supply for contactor switches (9-32V) is not present
331
332 == Connection procedure ==
333
334 (% class="box warningmessage" %)
335 (((
336 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.
337 )))
338
339 All operations to connect the device must be carried out with the supply voltage removed.
340
341 * Connect the power contactors to header X2.
342 * Connect one or more current sensors, as well as external temperature sensors (if necessary) to header X5.
343 * Connect BMS Logic devices to header X9.
344 * Connect digital inputs and outputs (if necessary) to header X3.
345 * Connect the high voltage bus (if necessary) to headers X11-X14.
346 * Connect the high-voltage network integrity circuit (if necessary) to header X4.
347 * Connect external devices (if necessary) to header X6.
348 * Connect other devices (BMS Indication, BMS Display, if necessary) to header X7.
349 * If the BMS Main 3 is the last device on the RS-485-1, CAN1, or CAN2 bus, install jumpers J1-J3.
350 * 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.