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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 BMS devices
161 |**2**|**CAN2_L**|CAN2 line L for communication with 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 for communication with battery modules (for BMS Main 3X)
175 |**2**|**CAN3_L**|CAN3 line L for communication with battery modules (for BMS Main 3X)
176 |**3**|**GND**|Ground
177 |**4**|**CAN3_5V**|CAN3 power line (5 V, max 400 mA)
178
179 (% class="box infomessage" %)
180 (((
181 If the BMS Main 3 device acts as a controller for a battery system consisting of several battery modules connected in parallel, then the parallel battery BMS must be connected to the CAN3 bus.
182 )))
183
184 Diagram for connecting battery modules to the CAN3 bus:
185
186 [[image:1733316622613-181.png||data-xwiki-image-style-alignment="center" height="153" width="417"]]
187
188 === X9 – header for BMS Logic (RS-485-2) ===
189
190 [[image:1733316517741-698.png||data-xwiki-image-style-alignment="center" height="59" width="144"]]
191
192 |**Pin**|**Name**|**Description**
193 |**1**|**LOGIC_B**|RS-485 line B for communication with BMS Logic
194 |**2**|**LOGIC_A**|RS-485 line A for communication with BMS Logic
195 |**3**|**GND**|Ground
196 |**4**|**LOGIC_5V**|BMS Logic power line (+5V, max 400mA)
197
198 Connection diagram for BMS Logic devices:
199
200 [[image:1733316674363-604.png||data-xwiki-image-style-alignment="center" height="163" width="400"]]
201
202 === X10 – miniUSB connector ===
203
204 The miniUSB connector is used to configure the parameters of the BMS Main 3 device.
205
206 === X11 – header for high-voltage bus before contactors (plus) ===
207
208 [[image:1733316780753-798.png||data-xwiki-image-style-alignment="center" height="60" width="91"]]
209
210 |**Pin**|**Name**|**Description**
211 |**1**|**IN1+**|Plus of the high-voltage bus (before contactors)
212 |**2**|**IN1+**|Plus of the high-voltage bus (before contactors)
213
214 (% class="box warningmessage" %)
215 (((
216 The connected voltage must not exceed 1000V.
217 )))
218
219 === X12 – header for high-voltage bus before contactors (minus) ===
220
221 [[image:1733316843397-336.png||data-xwiki-image-style-alignment="center" height="53" width="79"]]
222
223 |**Pin**|**Name**|**Description**
224 |**1**|**IN1-**|Minus of the high-voltage bus (before contactors)
225 |**2**|**IN1-**|Minus of the high-voltage bus (before contactors)
226
227 (% class="box warningmessage" %)
228 (((
229 The connected voltage must not exceed 1000V.
230 )))
231
232 === X13 – header for high-voltage bus after contactors (plus) ===
233
234 [[image:1733316780753-798.png||data-xwiki-image-style-alignment="center" height="60" width="91"]]
235
236 |**Pin**|**Name**|**Description**
237 |**1**|**IN2+**|Plus of the high-voltage bus (after contactors)
238 |**2**|**IN2+**|Plus of the high-voltage bus (after contactors)
239
240 (% class="box warningmessage" %)
241 (((
242 The connected voltage must not exceed 1000V.
243 )))
244
245 === X14 – header for high-voltage bus after contactors (minus) ===
246
247 [[image:1733316843397-336.png||data-xwiki-image-style-alignment="center" height="53" width="79"]]
248
249 |**Pin**|**Name**|**Description**
250 |**1**|**IN2-**|Minus of the high-voltage bus (after contactors)
251 |**2**|**IN2-**|Minus of the high-voltage bus (after contactors)
252
253 (% class="box warningmessage" %)
254 (((
255 The connected voltage must not exceed 1000V.
256 )))
257
258 === J1 – jumper for switching RS-485-1 bus terminal resistor ===
259
260 [[image:1733316982359-759.png||data-xwiki-image-style-alignment="center" height="77" width="148"]]
261
262 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:
263
264 |**Pin**|**Name**|**Description**
265 |**1-2**|**120 Ohm**|The 120 Ohm terminal resistor of the RS-485-1 bus is connected
266 |**2-3**|**-**|The 120 Ohm terminal resistor of the RS-485-1 bus is disconnected
267
268 === J2 – jumper for switching CAN1 bus terminal resistor ===
269
270
271 [[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:
272
273 |**Pin**|**Name**|**Description**
274 |**1-2**|**120 Ohm**|The 120 Ohm terminal resistor of the CAN1 bus is connected
275 |**2-3**|**-**|The 120 Ohm terminal resistor of the CAN1 bus is disconnected
276
277 === J3 – jumper for switching CAN2 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 **CAN2_H** and **CAN2_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 CAN2 bus is connected
284 |**2-3**|**-**|The 120 Ohm terminal resistor of the CAN2 bus is disconnected
285
286 === J5, J6 – jumpers for emergency opening of contactors when removing discrete input signals DIN7, DIN8 ===
287
288 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.
289
290 == Indicators ==
291
292 === DS1 – LED indicating device power ===
293
294 |**State**|**Description**
295 |**Lights up green**|Device power (+5V) is present
296 |**Doesn’t light up**|No device power
297
298 === DS2 – LED indicating device work ===
299
300 |**State**|**Description**
301 |**Blinking green**|Executing the battery management program
302 |**No blinking**|Program execution error
303
304 === DS3 – LED indicating interaction with BMS Logic ===
305
306 |**State**|**Description**
307 |**Blinking yellow**|The device interacts with BMS Logic devices
308 |**No blinking**|-
309
310 === DS4 – LED indicating loss of connection with BMS Logic ===
311
312 |**State**|**Description**
313 |**Blinking/lights up red**|Communication with one or more BMS Logic devices is lost
314 |**No blinking**|Communication with BMS Logic is stable
315
316 === DS5-DS10 – LEDs indicating contactor switches 1-6 ===
317
318 |**State**|**Description**
319 |**Lights up green**|The switch supplies voltage to the contactor winding
320 |**Doesn’t light up**|The switch doesn’t supply voltage to the contactor winding
321
322 === DS11 – LED indicating the presence of power supply for contactors ===
323
324 |**State**|**Description**
325 |**Lights up green**|Power supply for contactor switches (9-32V) is present
326 |**Doesn’t light up**|Power supply for contactor switches (9-32V) is not present
327
328 == Connection procedure ==
329
330 (% class="box warningmessage" %)
331 (((
332 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.
333 )))
334
335 All operations to connect the device must be carried out with the supply voltage removed.
336
337 * Connect the power contactors to header X2.
338 * Connect one or more current sensors, as well as external temperature sensors (if necessary) to header X5.
339 * Connect BMS Logic devices to header X9.
340 * Connect digital inputs and outputs (if necessary) to header X3.
341 * Connect the high voltage bus (if necessary) to headers X11-X14.
342 * Connect the high-voltage network integrity circuit (if necessary) to header X4.
343 * Connect external devices (if necessary) to header X6.
344 * Connect other devices (BMS Indication, BMS Display, if necessary) to header X7.
345 * If the BMS Main 3 is the last device on the RS-485-1, CAN1, or CAN2 bus, install jumpers J1-J3.
346 * 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.