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Last modified by Admin on 2026/04/02 13:49
From version 87.3
edited by Admin
on 2026/03/25 16:41
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To version 50.1
edited by Admin
on 2025/02/12 11:54
Change comment: Uploaded new attachment "1739361269041-663.png", version {1}

Summary

Details

Page properties
Parent
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1 -drafts.BMS Main 2R.WebHome
1 +Battery management systems.BMS Main 3.WebHome
Content
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1 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 2  = Installation and connection =
3 3  
4 -== Safety rules ==
5 -
6 -To perform the protection functions, the BMS must be able to disconnect the battery from the load and charger. To do this, **at least one contactor** able to break the load and charge circuits must be connected to the BMS.
7 -
8 -Before use, **configure the system**. Proper operation of the BMS is possible only if it is correctly configured.
9 -
10 -(% class="box errormessage" %)
11 -(((
12 -The BMS can be connected to batteries with life-threatening and health-hazardous voltage levels. When working with high-voltage batteries, observe electrical safety regulations, use safety glasses, protective clothing, insulated tools and appliances. To prevent the damage of device avoid electrostatic discharges while working with the battery.
13 -)))
14 -
15 -(% class="box errormessage" %)
16 -(((
17 -The system is not designed to operate with batteries whose total voltage exceeds 3000 V.
18 -)))
19 -
20 20  == Installation procedure ==
21 21  
22 -The mounting location of the BMS Main 2R 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.
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.
23 23  
24 24  Overall and mounting dimensions are shown in figure below.
25 25  
26 -[[image:1774349658793-888.0b.STEP.JPG||data-xwiki-image-style-alignment="center" height="522" width="450"]](% title="Click and drag to resize" %)​
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" %)​
27 27  
28 28  |**Parameter**|**Value**
29 -|Overall dimensions (length × width × height), mm|120 × 120 × 16
30 -|Mounting dimensions (length × width), mm|114 × 114
13 +|Overall dimensions (length × width × height), mm|200 × 123 × 12
14 +|Mounting dimensions (length × width), mm|194 × 114
31 31  |Mounting holes|M3
16 +|Headers X1-X9 type|Hirose ZE05
17 +|Headers X11-X14 type|Molex series Micro-Fit
32 32  
33 33  == Headers ==
34 34  
35 -The location and designation of connectors on the BMS Main 2R device are shown below.
21 +The location and designation of connectors on the BMS Main 3 / BMS Main 3X device are shown below.
36 36  
37 37  (% contenteditable="false" tabindex="-1" %)
38 38  (((
39 -[[image:1774455018488-627.png||data-xwiki-image-style-alignment="center"]]
25 +[[image:1732119505664-787.png||data-xwiki-image-style-alignment="center" height="417" width="684"]]
40 40  )))
41 41  
42 42  (% class="box warningmessage" %)
... ... @@ -45,96 +45,191 @@
45 45  All headers are shown from the device side!
46 46  )))
47 47  
48 -=== X1 – header for discrete inputs and outputs ===
34 +=== X1 – header to power the device ===
49 49  
50 -Receptacle Housing: Hirose ZE05-8DS-HU/R. Terminals: Hirose ZE05-2022SCF
51 -
52 52  (% class="wikigeneratedid" id="H" %)
53 -[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
37 +(% data-widget="image" contenteditable="false" tabindex="-1" %)[[image:1732121673277-246.png||data-xwiki-image-style-alignment="center" height="85" width="200"]]
54 54  
55 55  |**Pin**|**Name**|**Description**
56 -|**1–8**|**GND**|Ground
57 -|**9**|**DO_1**|Discrete output 1 (+5V, 20mA)
58 -|**10**|**DO_2**|Discrete output 2 (+5V, 20mA)
59 -|**11**|**DO_3**|Discrete output 3 (+5V, 20mA)
60 -|**12**|**DO_4**|Discrete output 4 (+5V, 20mA)
61 -|**13**|**DI_4**|Discrete input 4 (“dry contact”, +5V)
62 -|**14**|**DI_3**|Discrete input 3 (“dry contact”, +5V)
63 -|**15**|**DI_2**|Discrete input 2 (“dry contact”, +5V)
64 -|**16**|**DI_1**|Discrete input 1 (“dry contact”, +5V)
40 +|**1–2, 5–6**|**GND**|Ground
41 +|**3**|**KEYRUN**|Power-on signal
42 +|**4**|**CHARGE_ON**|Power-on signal (battery charge requirement)
43 +|**7–8**|**VIN**|Power line (9-32V)
65 65  
45 +Power supply connection diagram:
66 66  
47 +(% 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"]]
67 67  
68 -=== X2 – miniUSB connector ===
49 +=== X2 – header for contactors ===
69 69  
70 -The miniUSB connector is used to configure the parameters of the BMS Main 2R device.
51 +(% 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" %)​
71 71  
72 -=== (% title="Click and drag to resize" %)​(%%)X3 – (% style="color:inherit; font-family:inherit; font-size:max(18px, min(20px, 14.4444px + 0.462963vw))" %)header for power supply(%%) ===
53 +|**Pin**|**Name**|**Description**
54 +|**1–4, 8–9**|**GND**|Ground
55 +|**5**|**CONT1_OUT**|Contactor control 1 (plus)
56 +|**6**|**CONT2_OUT**|Contactor control 2 (plus)
57 +|**7**|**CONT3_OUT**|Contactor control 3 (plus)
58 +|**10**|**CONT4_OUT**|Contactor control 4 (plus)
59 +|**11**|**CONT5_OUT**|Contactor control 5 (plus)
60 +|**12**|**CONT6_OUT**|Contactor control 6 (plus)
73 73  
74 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
62 + Contactor connection diagram:
75 75  
76 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
64 +(% 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"]]
77 77  
66 +=== (% title="Click and drag to resize" %)​(%%)X3 – header for discrete inputs and outputs ===
67 +
68 +(% 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"]]
69 +
78 78  |**Pin**|**Name**|**Description**
79 -|**1**|**GND**|Ground
80 -|**2**|**V+**|Supply voltage (9-32V)
71 +|**1–8, 12, 16–17, 21**|**DIO_GND**|Ground of input and output signals
72 +|**9**|**DIN1_SIGNAL**|Discrete input 1 “dry contact”
73 +|**10**|**DIN2_SIGNAL**|Discrete input 2 “dry contact”
74 +|**11**|**DIN3_SIGNAL**|Discrete input 3 “dry contact”
75 +|**13**|**DIN4_SIGNAL**|Discrete input 4 “dry contact”
76 +|**14**|**DIN5_SIGNAL**|Discrete input 5 “dry contact”
77 +|**15**|**DIN6_SIGNAL**|Discrete input 6 “dry contact”
78 +|**18**|**DIN7_VIN**|Discrete input 7 (signal detection with voltage 9-32V)
79 +|**19**|**DIN8_VIN**|Discrete input 8 (signal detection with voltage 9-32V)
80 +|**20**|**DOUT1_OD**|Discrete output 1 “open drain” (60 V, 1A)
81 +|**22**|**DOUT2_OD**|Discrete output 2 “open drain” (60 V, 1A)
82 +|**23**|**DOUT3_OD**|Discrete output 3 “open drain” (60 V, 1A)
83 +|**24**|**DOUT4_OD**|Discrete output 4 “open drain” (60 V, 1A)
81 81  
85 +Connection diagram of a discrete input to a dry contact output:
82 82  
87 +(% 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:
83 83  
84 -=== X4, X5, X6, X7 – header of relay 1, 2, 3 and 4 ===
89 +(% 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:
85 85  
86 -Receptacle Housing: Molex 39012020. Terminals: Molex 5556
91 +(% 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:
87 87  
88 -[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
93 +=== X4 – header for HVIL ===
89 89  
95 +[[image:1732122015188-642.png||data-xwiki-image-style-alignment="center" height="64" width="150"]]
96 +
90 90  |**Pin**|**Name**|**Description**
91 -|**1**|**V+**|Switching voltage (up to 55V, max 3A)
92 -|**2**|**NO**|Normally open contact
98 +|**1**|**-**|Not used
99 +|**2**|**HVIL_OUT**|Output of the current measurement circuit in the current loop (lower potential, measuring shunt output)
100 +|**3**|**HVIL_IN**|Input of the current measurement circuit in the current loop (higher potential, measuring shunt input)
101 +|**4**|**HVIL_PWR**|Current loop power supply (max 5V, 25mA)
93 93  
94 -Contactor connection example for all relays:
103 + 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.
95 95  
96 -[[image:1774456661980-866.png||data-xwiki-image-style-alignment="center" height="211" width="282"]]
105 +Connection diagram to the current loop:
97 97  
107 +=== X5 – header for current and temperature sensors ===
98 98  
99 -=== X8 – header for current sensor 1 ===
109 +[[image:1733311958053-469.png||data-xwiki-image-style-alignment="center" height="83" width="349"]]
100 100  
101 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
111 +(% style="width:539px" %)
112 +|**Pin**|**Name**|(% style="width:402px" %)**Description**
113 +|**1**|**CS1_5V**|(% style="width:402px" %)Current sensor 1 power line (5 V, max 50 mA)
114 +|**2–6**|**GND**|(% style="width:402px" %)Ground
115 +|**7**|**CS1_IN1**|(% style="width:402px" %)Current sensor 1 signal line (for a dual-range current sensor, High range output)
116 +|**8**|**CS1_REF_IN2**|(% style="width:402px" %)Current sensor 1 reference voltage signal line (for a dual-range current sensor, Low range output)
117 +|**9**|**CS2_5V**|(% style="width:402px" %)Current sensor 2 power line (5 V, max 50 mA)
118 +|**10**|**CS2_IN1**|(% style="width:402px" %)Current sensor 2 signal line (for a dual-range current sensor, High range output)
119 +|**11**|**CS2_REF_IN2**|(% style="width:402px" %)Current sensor 2 reference voltage signal line (for a dual-range current sensor, Low range output)
120 +|**12**|**CS3_5V**|(% style="width:402px" %)Current sensor 3 power line (5 V, max 50 mA)
121 +|**13**|**CS3_IN1**|(% style="width:402px" %)Current sensor 3 signal line (for a dual-range current sensor, High range output)
122 +|**14**|**CS3_REF_IN2**|(% style="width:402px" %)Current sensor 3 reference voltage signal line (for a dual-range current sensor, Low range output)
123 +|**15**|**TEMP1**|(% style="width:402px" %)Temperature sensor 1 signal line (NTC-thermistor 100 kOhm)
124 +|**16**|**TEMP2**|(% style="width:402px" %)Temperature sensor 2 signal line (NTC-thermistor 100 kOhm)
102 102  
103 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
126 +Current sensor connection diagram (using the example of LEM HASS 100-S):
104 104  
128 +[[image:1733316158040-285.png||data-xwiki-image-style-alignment="center" height="170" width="412"]]
129 +
130 +Current sensor connection diagram (using the example of LEM DHAB S/118):
131 +
132 +[[image:1733316170709-142.png||data-xwiki-image-style-alignment="center" height="171" width="413"]]
133 +
134 +NTC-thermistor connection diagram:
135 +
136 +[[image:1733316189878-329.png||data-xwiki-image-style-alignment="center" height="130" width="260"]]
137 +
138 +=== X6 – header for CAN1 and RS-485-1 (external buses) ===
139 +
140 +[[image:1733316218666-814.png||data-xwiki-image-style-alignment="center" height="55" width="162"]]
141 +
105 105  |**Pin**|**Name**|**Description**
106 -|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
107 -|**2**|**GND**|Ground
108 -|**3**|**CS1_OUT**|Current sensor 1 output
109 -|**4**|**CS1_REF**|Current sensor 1 reference signal
143 +|**1**|**CAN1_H**|CAN1 line H for communication with external equipment
144 +|**2**|**CAN1_L**|CAN1 line L for communication with external equipment
145 +|**3**|**CAN1_RS485_1_GND**|Ground of CAN1 and RS-485-1
146 +|**4**|**RS485_1_A**|RS-485-1 line A for communication with external equipment
147 +|**5**|**RS485_1_B**|RS-485-1 line B for communication with external equipment
110 110  
111 -=== X9 – (% style="color:inherit; font-family:inherit; font-size:max(18px, min(20px, 14.4444px + 0.462963vw))" %)header for current sensor 2(%%) ===
149 +Connection diagram to the CAN1 bus:
112 112  
113 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
151 +[[image:1733316241362-843.png||data-xwiki-image-style-alignment="center" height="153" width="410"]]
114 114  
115 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
153 +Connection diagram to the RS-485-1 bus:
116 116  
155 +[[image:1733316483336-290.png||data-xwiki-image-style-alignment="center" height="152" width="417"]]
156 +
157 +=== X7 – header for CAN2 (internal bus) ===
158 +
159 +[[image:1733316517741-698.png||data-xwiki-image-style-alignment="center" height="59" width="144"]]
160 +
117 117  |**Pin**|**Name**|**Description**
118 -|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
119 -|**2**|**GND**|Ground
120 -|**3**|**CS2_OUT**|Current sensor 2 output
121 -|**4**|**CS2_REF**|Current sensor 2 reference signal
162 +|**1**|**CAN2_H**|CAN2 line H for communication with other BMS devices
163 +|**2**|**CAN2_L**|CAN2 line L for communication with other BMS devices
164 +|**3**|**GND**|Ground
165 +|**4**|**CAN2_5V**|CAN2 power line (5 V, max 400 mA)
122 122  
123 -=== X10 – (% style="color:inherit; font-family:inherit; font-size:max(18px, min(20px, 14.4444px + 0.462963vw))" %)header for temperature sensors(%%) ===
167 +Connection diagram to the CAN2 bus (using the example of connecting BMS Display 1.2):
124 124  
125 -Receptacle Housing: Molex 430250400. Terminals: Molex 43030
169 +[[image:1733316563149-458.png||data-xwiki-image-style-alignment="center" height="158" width="392"]]
126 126  
127 -[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
171 +=== X8 – header for CAN3 ===
128 128  
173 +[[image:1733316517741-698.png||data-xwiki-image-style-alignment="center" height="59" width="144"]]
174 +
129 129  |**Pin**|**Name**|**Description**
130 -|**1, 2**|**GND**|Ground
131 -|**3**|**T_SENS1**|Ground
132 -|**4**|**T_SENS2**|Current sensor 2 output
176 +|**1**|**CAN3_H**|CAN3 line H
177 +|**2**|**CAN3_L**|CAN3 line L
178 +|**3**|**GND**|Ground
179 +|**4**|**CAN3_5V**|CAN3 power line (5 V, max 400 mA)
133 133  
134 -=== X11 – header for high-voltage bus before contactors (plus) ===
181 +(% class="box infomessage" %)
182 +(((
183 +**Note:**
184 +CAN3 operates differently depending on used firmware:
135 135  
136 -Receptacle Housing: Molex 436450200. Terminals: Molex 43030
186 +* **BMS Main 3:** CAN3 bus is reserved;
187 +* **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:
137 137  
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 +(% class="box infomessage" %)
203 +(((
204 +**Note:**
205 +RS-485-2 operates differently depending on used firmware:
206 +
207 +* **BMS Main 3X:** RS-485-2 bus is reserved;
208 +* **BMS Main 3:** RS-485-2 bus is used to connect with BMS Logics in a battery pack. Connection diagram for BMS Logic devices:
209 +
210 +[[image:1733316674363-604.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="163" width="400"]]
211 +)))
212 +
213 +=== X10 – miniUSB connector ===
214 +
215 +The miniUSB connector is used to configure the parameters of the BMS Main 3 / BMS Main 3X device.
216 +
217 +=== X11 – header for high-voltage bus before contactors (plus) ===
218 +
138 138  [[image:1733316780753-798.png||data-xwiki-image-style-alignment="center" height="60" width="91"]]
139 139  
140 140  |**Pin**|**Name**|**Description**
... ... @@ -148,8 +148,6 @@
148 148  
149 149  === X12 – header for high-voltage bus before contactors (minus) ===
150 150  
151 -Receptacle Housing: Molex 436450200. Terminals: Molex 43030
152 -
153 153  [[image:1733316843397-336.png||data-xwiki-image-style-alignment="center" height="53" width="79"]]
154 154  
155 155  |**Pin**|**Name**|**Description**
... ... @@ -163,8 +163,6 @@
163 163  
164 164  === X13 – header for high-voltage bus after contactors (plus) ===
165 165  
166 -Receptacle Housing: Molex 436450200. Terminals: Molex 43030
167 -
168 168  [[image:1733316780753-798.png||data-xwiki-image-style-alignment="center" height="60" width="91"]]
169 169  
170 170  |**Pin**|**Name**|**Description**
... ... @@ -178,8 +178,6 @@
178 178  
179 179  === X14 – header for high-voltage bus after contactors (minus) ===
180 180  
181 -Receptacle Housing: Molex 436450200. Terminals: Molex 43030
182 -
183 183  [[image:1733316843397-336.png||data-xwiki-image-style-alignment="center" height="53" width="79"]]
184 184  
185 185  |**Pin**|**Name**|**Description**
... ... @@ -221,7 +221,7 @@
221 221  
222 222  === J5, J6 – jumpers for emergency opening of contactors when removing discrete input signals DIN7, DIN8 ===
223 223  
224 -The BMS Main 2R 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.
299 +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.
225 225  
226 226  == Indicators ==
227 227  
... ... @@ -237,19 +237,17 @@
237 237  |**Blinking green**|Executing the battery management program
238 238  |**No blinking**|Program execution error
239 239  
240 -=== DS3 – LED indicating interaction with child devices ===
315 +=== DS3 – LED indicating interaction with BMS Logic ===
241 241  
242 -(% style="width:447px" %)
243 -|**State**|(% style="width:166px" %)**Description (Main 3)**|(% style="width:168px" %)**Description (Main 3X)**
244 -|**Blinking yellow**|(% style="width:166px" %)The device interacts with BMS Logic devices|(% style="width:168px" %)The device interacts with BMS Main 3 devices
245 -|**No blinking**|(% style="width:166px" %)-|(% style="width:168px" %)-
317 +|**State**|**Description**
318 +|**Blinking yellow**|The device interacts with BMS Logic devices
319 +|**No blinking**|-
246 246  
247 -=== DS4 – LED indicating loss of connection with child devices ===
321 +=== DS4 – LED indicating loss of connection with BMS Logic ===
248 248  
249 -(% style="width:601px" %)
250 -|**State**|(% style="width:220px" %)**Description (Main 3)**|(% style="width:218px" %)**Description (Main 3X)**
251 -|**Blinking/lights up red**|(% style="width:220px" %)Communication with one or more BMS Logic devices is lost|(% style="width:218px" %)Communication with one or more BMS Main 3 devices is lost
252 -|**No blinking**|(% style="width:220px" %)Communication with BMS Logic devices is stable|(% style="width:218px" %)Communication with BMS Main 3 devices is stable
323 +|**State**|**Description**
324 +|**Blinking/lights up red**|Communication with one or more BMS Logic devices is lost
325 +|**No blinking**|Communication with BMS Logic is stable
253 253  
254 254  === DS5-DS10 – LEDs indicating contactor switches 1-6 ===
255 255  
... ... @@ -265,6 +265,18 @@
265 265  
266 266  == Connection procedure ==
267 267  
341 +The BMS can connect to batteries with voltage levels dangerous to life and health. When working with high voltage batteries, follow electrical safety rules, use safety glasses, protective clothing, insulated tools and devices.
342 +
343 +(% class="box errormessage" %)
344 +(((
345 +**The system is not designed to operate with batteries with total voltage more than 3000V.**
346 +)))
347 +
348 +(% class="box warningmessage" %)
349 +(((
350 +Before connection, configure the device (see [[Settings>>doc:Battery management systems.BMS Main 3.3\. Configuration.WebHome]]). Correct operation of the BMS system is only possible with correct configuration.
351 +)))
352 +
268 268  All operations to connect the device must be carried out with the supply voltage removed.
269 269  
270 270  * Connect the power contactors to header X2.
... ... @@ -275,5 +275,5 @@
275 275  * Connect the high-voltage network integrity circuit (if necessary) to header X4.
276 276  * Connect external devices (if necessary) to header X6.
277 277  * Connect other devices (BMS Indication, BMS Display, if necessary) to header X7.
278 -* If the BMS Main 2R is the last device on the RS-485-1, CAN1, or CAN2 bus, install jumpers J1-J3.
363 +* 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.
279 279  * 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.
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