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