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Summary

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1 -xwiki:drafts.bms-main-2.WebHome
1 +Battery management systems.BMS Main 2\.1.WebHome
Content
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1 -== 2.1 Installation procedure ==
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 =
2 2  
3 -Overall and mounting dimensions of the BMS Main 2.1 are shown in Figure 29.
4 +== Safety rules ==
4 4  
5 -[[Dimensions of the BMS Main 2.1>>image:1732198397369-222.png||data-xwiki-image-style-alignment="center" height="393" width="556"]]
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.
6 6  
7 -|**Parameter**|**Value**
8 -|(((
9 -Overall dimensions (length × width × height), mm
10 -)))|120 × 120 × 32
11 -|Mounting dimensions (length × width), mm|114 × 114
12 -|Mounting holes|M3
8 +Before use, **configure the system**. Proper operation of the BMS is possible only if it is correctly configured.
13 13  
14 -== 2.2 Connection procedure ==
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 +)))
15 15  
15 +(% class="box errormessage" %)
16 +(((
17 +The system is not designed to operate with batteries whose total voltage exceeds 1200 V.
18 +)))
19 +
20 +== Installation procedure ==
21 +
22 +Overall and mounting dimensions of the BMS Main 2.1 are shown below.
23 +
24 +
25 +(% style="width:494px" %)
26 +|**Parameter**|(% style="width:178px" %)**Value**
27 +|Overall dimensions (length × width × height), mm|(% style="width:178px" %)120 × 120 × 17
28 +|Mounting dimensions (length × width), mm|(% style="width:178px" %)114 × 114
29 +|Mounting holes|(% style="width:178px" %)M3
30 +
31 +== Connection procedure ==
32 +
16 16  The mounting area of the BMS Main 2.1 must be protected from mechanical particles (dust, dirt, large objects) and water. The installation site must provide convenient access for subsequent connection to the device’s headers.
17 17  
18 18  1. Connect the charging and discharging contactors to the P6-P9 headers.
... ... @@ -20,214 +20,231 @@
20 20  1. Connect the BMS Main 2.1 to the on-board CAN network. Observe the rules for connecting CAN devices. If the BMS Main 2.1 is the last device on a bus, close pins 1-2 on the P21 jumper, otherwise leave the jumper on pins 2-3.
21 21  1. Connect a power supply to the P1 header. It is not recommended to power the BMS Main 2.1 from the battery only, since at a critical discharge of the battery, it is not possible to turn on the BMS and close the charging contactor.
22 22  
23 -== 2.3 ​​​​Headers description ==
40 +== ​​​​Headers description ==
24 24  
25 25  The BMS Main 2.1 headers are shown in figure below.
26 26  
27 -[[The BMS Main 2.1 headers>>image:1731516393377-928.jpeg||alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
44 +[[image:1731516393377-928.jpeg||alt="1731517946345-632.png" data-xwiki-image-style-alignment="center" height="417" width="451"]]
28 28  
29 -(% class="wikigeneratedid" %)
30 -Following chapters describes the BMS Main 2.1 headers pinout.
46 +(% class="box warningmessage" %)
47 +(((
48 +**Attention!**
49 +All headers are shown from the device side!
50 +)))
31 31  
32 -=== 2.3.1 P1 – header for power supply ===
52 +=== P1 – header for power supply ===
33 33  
34 -[[image:1732198827034-560.png||height="78" width="41"]]
54 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
35 35  
36 -(% style="width:339px" %)
37 -|(% style="width:71px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:174px" %)**Description**
38 -|(% style="width:71px" %)**1**|(% style="width:91px" %)**GND**|(% style="width:174px" %)Ground
39 -|(% style="width:71px" %)**2**|(% style="width:91px" %)**V+**|(% style="width:174px" %)Supply voltage 9-30V
56 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
40 40  
41 -=== 2.3.2 P15 – header for BMS Logic ===
58 +|**Pin**|**Name**|**Description**
59 +|**1**|**GND**|Ground
60 +|**2**|**V+**|Supply voltage 9-30V
42 42  
43 -[[image:1732198849079-697.png||height="77" width="71"]]
62 +=== P15 – header for BMS Logic ===
44 44  
45 -(% style="width:524px" %)
46 -|(% style="width:69px" %)**Pin**|(% style="width:97px" %)**Name**|(% style="width:355px" %)**Description**
47 -|(% style="width:69px" %)**1**|(% style="width:97px" %)**RS485_A**|(% style="width:355px" %)RS-485 line A for communication with BMS Logic
48 -|(% style="width:69px" %)**2**|(% style="width:97px" %)**RS485_B**|(% style="width:355px" %)RS-485 line B for communication with BMS Logic
49 -|(% style="width:69px" %)**3**|(% style="width:97px" %)**+5V**|(% style="width:355px" %)Supply voltage for BMS Logic
50 -|(% style="width:69px" %)**4**|(% style="width:97px" %)**GND**|(% style="width:355px" %)Ground
64 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
51 51  
52 -=== 2.3.3 P12 – header for current sensor ===
66 +[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
53 53  
54 -[[image:1732198890482-787.png||height="77" width="71"]]
68 +|**Pin**|**Name**|**Description**
69 +|**1**|**RS485_A**|RS-485 line A for communication with BMS Logic
70 +|**2**|**RS485_B**|RS-485 line B for communication with BMS Logic
71 +|**3**|**+5V**|Supply voltage for BMS Logic
72 +|**4**|**GND**|Ground
55 55  
56 -(% style="width:531px" %)
57 -|(% style="width:75px" %)**Pin**|(% style="width:93px" %)**Name**|(% style="width:360px" %)**Description**
58 -|(% style="width:75px" %)**1**|(% style="width:93px" %)**+5V**|(% style="width:360px" %)Supply voltage for the current sensor 5V, max 50 mA
59 -|(% style="width:75px" %)**2**|(% style="width:93px" %)**GND**|(% style="width:360px" %)Ground
60 -|(% style="width:75px" %)**3**|(% style="width:93px" %)**Vcs**|(% style="width:360px" %)ADC input (current sensor output)
61 -|(% style="width:75px" %)**4**|(% style="width:93px" %)**Vref**|(% style="width:360px" %)ADC input (current sensor reference signal)
74 +=== P12 – header for current sensor ===
62 62  
63 -=== 2.3.4 P13 – header for humidity sensor ===
76 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
64 64  
65 -[[image:1732198896526-660.png||height="70" width="64"]]
78 +[[image:1732198890482-787.png||data-xwiki-image-style-alignment="center" height="77" width="71"]]
66 66  
67 -(% style="width:531px" %)
68 -|(% style="width:77px" %)**Pin**|(% style="width:92px" %)**Name**|(% style="width:359px" %)**Description**
69 -|(% style="width:77px" %)**1**|(% style="width:92px" %)**+5V**|(% style="width:359px" %)Supply voltage 5 V, max 50 mA
70 -|(% style="width:77px" %)**2**|(% style="width:92px" %)**GND**|(% style="width:359px" %)Ground
71 -|(% style="width:77px" %)**3**|(% style="width:92px" %)**Vhs**|(% style="width:359px" %)ADC input (humidity sensor output)
72 -|(% style="width:77px" %)**4**|(% style="width:92px" %)**Vts**|(% style="width:359px" %)ADC input (temperature sensor output)
80 +|**Pin**|**Name**|**Description**
81 +|**1**|**+5V**|Supply voltage for the current sensor 5V, max 50 mA
82 +|**2**|**GND**|Ground
83 +|**3**|**Vcs**|ADC input (current sensor output)
84 +|**4**|**Vref**|ADC input (current sensor reference signal)
73 73  
74 -=== 2.3.5 P8 – header of relay 1 ===
86 +=== P13 – header for humidity sensor ===
75 75  
76 -[[image:1732198827034-560.png||height="78" width="41"]]
88 +Receptacle Housing: Molex 430250400. Terminals: Molex 43030
77 77  
90 +[[image:1732198896526-660.png||data-xwiki-image-style-alignment="center" height="70" width="64"]]
91 +
92 +|**Pin**|**Name**|**Description**
93 +|**1**|**+5V**|Supply voltage 5 V, max 50 mA
94 +|**2**|**GND**|Ground
95 +|**3**|**Vhs**|ADC input (humidity sensor output)
96 +|**4**|**Vts**|ADC input (temperature sensor output)
97 +
98 +=== P8 – header of relay 1 ===
99 +
100 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
101 +
102 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
103 +
78 78  By default, relay 1 is used to control the discharging contactor.
79 79  
80 -(% style="width:527px" %)
81 -|(% style="width:82px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:351px" %)**Description**
82 -|(% style="width:82px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:351px" %)Switching voltage (up to 55V, max 2A)
83 -|(% style="width:82px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:351px" %)Normally open contact
106 +|**Pin**|**Name**|**Description**
107 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
108 +|**2**|**NO**|Normally open contact
84 84  
85 -=== 2.3.6 P9 – header of relay 2 ===
110 +Contactor connection example for all relays:
86 86  
87 -[[image:1732198827034-560.png||height="78" width="41"]]
112 +[[image:1741619814065-850.png||height="189" width="252"]]
88 88  
114 +=== P9 – header of relay 2 ===
115 +
116 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
117 +
118 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
119 +
89 89  By default, relay 2 is used to output the “Allow charging” signal.
90 90  
91 -(% style="width:524px" %)
92 -|(% style="width:89px" %)**Pin**|(% style="width:91px" %)**Name**|(% style="width:341px" %)**Description**
93 -|(% style="width:89px" %)**1**|(% style="width:91px" %)**V+**|(% style="width:341px" %)Switching voltage (up to 55V, max 2A)
94 -|(% style="width:89px" %)**2**|(% style="width:91px" %)**NO**|(% style="width:341px" %)Normally open contact
122 +|**Pin**|**Name**|**Description**
123 +|**1**|**V+**|Switching voltage (up to 55V, max 3A)
124 +|**2**|**NO**|Normally open contact
95 95  
96 -=== 2.3.7 P6 – header of relay 3 ===
126 +Contactor connection example: see relay 1.
97 97  
98 -[[image:1732198827034-560.png||height="78" width="41"]]
128 +=== P6 – header of relay 3 ===
99 99  
130 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
131 +
132 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
133 +
100 100  By default, relay 3 is used to control the charging contactor.
101 101  
102 -(% style="width:524px" %)
103 -|(% style="width:101px" %)**Pin**|(% style="width:88px" %)**Name**|(% style="width:332px" %)**Description**
104 -|(% style="width:101px" %)**1**|(% style="width:88px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
105 -|(% style="width:101px" %)**2**|(% style="width:88px" %)**NO**|(% style="width:332px" %)Normally open contact
136 +|**Pin**|**Name**|**Description**
137 +|**1**|**V+**|Switching voltage up to 55V,
138 +up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
139 +|**2**|**NO**|Normally open contact
106 106  
107 -=== 2.3.8 P7 – header of relay 4 ===
141 +Contactor connection example: see relay 1.
108 108  
109 -[[image:1732198827034-560.png||height="78" width="41"]]
143 +=== P7 – header of relay 4 ===
110 110  
145 +Receptacle Housing: Molex 39012020. Terminals: Molex 5556
146 +
147 +[[image:1732198827034-560.png||data-xwiki-image-style-alignment="center" height="78" width="41"]]
148 +
111 111  By default, relay 4 is used to control the heater.
112 112  
113 -(% style="width:530px" %)
114 -|(% style="width:102px" %)**Pin**|(% style="width:93px" %)**Name**|(% style="width:332px" %)**Description**
115 -|(% style="width:102px" %)**1**|(% style="width:93px" %)**V+**|(% style="width:332px" %)Switching voltage (up to 55V, max 8A)
116 -|(% style="width:102px" %)**2**|(% style="width:93px" %)**NO**|(% style="width:332px" %)Normally open contact
151 +|**Pin**|**Name**|**Description**
152 +|**1**|**V+**|Switching voltage up to 55V,
153 +up to 8A (board rev. 2.1b), up to 3A (board rev. 2.1c)
154 +|**2**|**NO**|Normally open contact
117 117  
118 -=== 2.3.9 P14 – header for CAN and RS-485 interfaces ===
156 +Contactor connection example: see relay 1.
119 119  
120 -[[image:1731517180930-597.png||height="81" width="113"]]
158 +=== P14 – header for CAN and RS-485 interfaces ===
121 121  
160 +Receptacle Housing: Molex 430250600. Terminals: Molex 43030
161 +
162 +[[image:1731517180930-597.png||data-xwiki-image-style-alignment="center" height="81" width="113"]]
163 +
122 122  (% style="width:641px" %)
123 -|(% style="width:107px" %)**Pin**|(% style="width:127px" %)**Name**|(% style="width:404px" %)**Description**
124 -|(% style="width:107px" %)**1**|(% style="width:127px" %)**EXT_RS485_A**|(% style="width:404px" %)RS-485 line A for communication with external equipment
125 -|(% style="width:107px" %)**2**|(% style="width:127px" %)**CAN_H**|(% style="width:404px" %)CAN H line for communication with external equipment
126 -|(% style="width:107px" %)**3**|(% style="width:127px" %)**+5V_CAN**|(% style="width:404px" %)Supply voltage 5V for external devices, max 200 mA
127 -|(% style="width:107px" %)**4**|(% style="width:127px" %)**EXT_RS485_B**|(% style="width:404px" %)RS-485 line B for communication with external equipment
128 -|(% style="width:107px" %)**5**|(% style="width:127px" %)**CAN_L**|(% style="width:404px" %)CAN L line for communication with external equipment
129 -|(% style="width:107px" %)**6**|(% style="width:127px" %)**GND_CAN**|(% style="width:404px" %)Ground
165 +|**Pin**|**Name**|**Description**
166 +|**1**|**EXT_RS485_A**|RS-485 line A for communication with external equipment
167 +|**2**|**CAN_H**|CAN H line for communication with external equipment
168 +|**3**|**+5V_CAN**|Supply voltage 5V for external devices, max 200 mA
169 +|**4**|**EXT_RS485_B**|RS-485 line B for communication with external equipment
170 +|**5**|**CAN_L**|CAN L line for communication with external equipment
171 +|**6**|**GND_CAN**|Ground
130 130  
131 -=== 2.3.10 P21 – CAN termination resistor jumper ===
173 +=== P21 – CAN termination resistor jumper ===
132 132  
133 -[[image:1731517188900-976.png||height="78" width="149"]]
175 +[[image:1731517188900-976.png||data-xwiki-image-style-alignment="center" height="78" width="149"]]
134 134  
135 135  To connect the termination resistor between the lines **CAN_H** and **CAN_L**, install a jumper, according to the P21 pinout:
136 136  
137 -(% style="width:643px" %)
138 -|**Pin**|(% style="width:122px" %)**Name**|(% style="width:400px" %)**Description**
139 -|**1-2**|(% style="width:122px" %)**120 Ohm**|(% style="width:400px" %)Termination resistor 120 Ohm is connected
140 -|**2-3**|(% style="width:122px" %)**-**|(% style="width:400px" %)Termination resistor 120 Ohm is not connected
179 +|**Pin**|**Name**|**Description**
180 +|**1-2**|**120 Ohm**|Termination resistor 120 Ohm is connected
181 +|**2-3**|**-**|Termination resistor 120 Ohm is not connected
141 141  
142 -=== 2.3.11 P22 - RS-485 termination resistor jumper ===
183 +=== P22 - RS-485 termination resistor jumper ===
143 143  
144 -[[image:1731517195672-298.png||height="81" width="155"]]
185 +[[image:1731517195672-298.png||data-xwiki-image-style-alignment="center" height="81" width="155"]]
145 145  
146 146  To connect the termination resistor between the **EXT_RS485_A** and **EXT_RS485_B** lines, install a jumper according to the P22 pinout:
147 147  
148 -(% style="width:644px" %)
149 -|**Pin**|(% style="width:121px" %)**Name**|(% style="width:402px" %)**Description**
150 -|**1-2**|(% style="width:121px" %)**120 Ohm**|(% style="width:402px" %)Terminating resistor 120 Ohm is connected
151 -|**2-3**|(% style="width:121px" %)**-**|(% style="width:402px" %)Terminating resistor 120 Ohm is not connected
189 +|**Pin**|**Name**|**Description**
190 +|**1-2**|**120 Ohm**|Terminating resistor 120 Ohm is connected
191 +|**2-3**|**-**|Terminating resistor 120 Ohm is not connected
152 152  
153 -=== 2.3.12 P11 – header for discrete inputs/outputs ===
193 +=== P11 – header for discrete inputs/outputs ===
154 154  
155 -[[image:1732198937514-731.png||height="85" width="272"]]
195 +Receptacle Housing: Molex 430251600. Terminals: Molex 43030
156 156  
157 -(% style="width:584px" %)
158 -|(% style="width:98px" %)**Pin**|(% style="width:157px" %)**Name**|(% style="width:326px" %)**Description**
159 -|(% style="width:98px" %)**16**|(% style="width:157px" %)**IN_1**|(% style="width:326px" %)Discrete input #1 “dry contact” (+5V)
160 -|(% style="width:98px" %)**8**|(% style="width:157px" %)**GND_1**|(% style="width:326px" %)Discrete input #1 “dry contact” (ground)
161 -|(% style="width:98px" %)**15**|(% style="width:157px" %)**IN_2**|(% style="width:326px" %)Discrete input #2 “dry contact” (+5V)
162 -|(% style="width:98px" %)**7**|(% style="width:157px" %)**GND_2**|(% style="width:326px" %)Discrete input #2 “dry contact” (ground)
163 -|(% style="width:98px" %)**14**|(% style="width:157px" %)**IN_3**|(% style="width:326px" %)Discrete input #3 “dry contact” (+5V)
164 -|(% style="width:98px" %)**6**|(% style="width:157px" %)**GND_3**|(% style="width:326px" %)Discrete input #3 “dry contact” (ground)
165 -|(% style="width:98px" %)**13**|(% style="width:157px" %)**IN_4**|(% style="width:326px" %)Discrete input #4 “dry contact” (+5V)
166 -|(% style="width:98px" %)**5**|(% style="width:157px" %)**GND_4**|(% style="width:326px" %)Discrete input #4 “dry contact” (ground)
167 -|(% style="width:98px" %)**12**|(% style="width:157px" %)**OUT_4**|(% style="width:326px" %)Discrete output #4 (+5V, 20mA)
168 -|(% style="width:98px" %)**4**|(% style="width:157px" %)**GND_OUT_4**|(% style="width:326px" %)Discrete output #4 (ground)
169 -|(% style="width:98px" %)**11**|(% style="width:157px" %)**OUT_3**|(% style="width:326px" %)Discrete output #3 (+5V, 20mA)
170 -|(% style="width:98px" %)**3**|(% style="width:157px" %)**GND_OUT_3**|(% style="width:326px" %)Discrete output #3 (ground)
171 -|(% style="width:98px" %)**10**|(% style="width:157px" %)**OUT_2**|(% style="width:326px" %)Discrete output #2 (+5V, 20mA)
172 -|(% style="width:98px" %)**2**|(% style="width:157px" %)**GND_OUT_2**|(% style="width:326px" %)Discrete output #2 (ground)
173 -|(% style="width:98px" %)**9**|(% style="width:157px" %)**OUT_1**|(% style="width:326px" %)Discrete output #1 (+5V, 20mA)
174 -|(% style="width:98px" %)**1**|(% style="width:157px" %)**GND_OUT_1**|(% style="width:326px" %)Discrete output #1 (ground)
197 +[[image:1732198937514-731.png||data-xwiki-image-style-alignment="center" height="85" width="272"]]
175 175  
176 -= 2.4 Indicators =
199 +|**Pin**|**Name**|**Description**
200 +|**16**|**IN_1**|Discrete input #1 “dry contact” (+5V)
201 +|**8**|**GND_1**|Discrete input #1 “dry contact” (ground)
202 +|**15**|**IN_2**|Discrete input #2 “dry contact” (+5V)
203 +|**7**|**GND_2**|Discrete input #2 “dry contact” (ground)
204 +|**14**|**IN_3**|Discrete input #3 “dry contact” (+5V)
205 +|**6**|**GND_3**|Discrete input #3 “dry contact” (ground)
206 +|**13**|**IN_4**|Discrete input #4 “dry contact” (+5V)
207 +|**5**|**GND_4**|Discrete input #4 “dry contact” (ground)
208 +|**12**|**OUT_4**|Discrete output #4 (+5V, 20mA)
209 +|**4**|**GND_OUT_4**|Discrete output #4 (ground)
210 +|**11**|**OUT_3**|Discrete output #3 (+5V, 20mA)
211 +|**3**|**GND_OUT_3**|Discrete output #3 (ground)
212 +|**10**|**OUT_2**|Discrete output #2 (+5V, 20mA)
213 +|**2**|**GND_OUT_2**|Discrete output #2 (ground)
214 +|**9**|**OUT_1**|Discrete output #1 (+5V, 20mA)
215 +|**1**|**GND_OUT_1**|Discrete output #1 (ground)
177 177  
178 -=== 2.4.1 DS1 – power indicator ===
217 +== Indicators ==
179 179  
180 -(% style="width:442px" %)
181 -|(% style="width:138px" %)**State**|(% style="width:301px" %)**Description**
182 -|(% style="width:138px" %)**Lights red**|(% style="width:301px" %)The device is powered
183 -|(% style="width:138px" %)**Off**|(% style="width:301px" %)The device is not powered
219 +=== DS1 – power indicator ===
184 184  
185 -=== 2.4.2 DS2 – operation indicator ===
221 +|**State**|**Description**
222 +|**Lights red**|The device is powered
223 +|**Off**|The device is not powered
186 186  
187 -(% style="width:442px" %)
188 -|(% style="width:137px" %)**State**|(% style="width:302px" %)**Description**
189 -|(% style="width:137px" %)**Blinking green**|(% style="width:302px" %)The BMS firmware is running
190 -|(% style="width:137px" %)**Off**|(% style="width:302px" %)The BMS firmware is not running
225 +=== DS2 – operation indicator ===
191 191  
192 -=== 2.4.3 DS3 – communication indicator ===
227 +|**State**|**Description**
228 +|**Blinking green**|The BMS firmware is running
229 +|**Off**|The BMS firmware is not running
193 193  
194 -(% style="width:539px" %)
195 -|(% style="width:175px" %)**State**|(% style="width:361px" %)**Description**
196 -|(% style="width:175px" %)**Blinking yellow (2Hz)**|(% style="width:361px" %)Initializing communication with BMS Logic boards
197 -|(% style="width:175px" %)**Blinking yellow (25Hz)**|(% style="width:361px" %)Communication with BMS Logic is established
231 +=== DS3 – communication indicator ===
198 198  
199 -=== 2.4.4 DS4 – error indicator ===
233 +|**State**|**Description**
234 +|**Blinking yellow (2Hz)**|Initializing communication with BMS Logic boards
235 +|**Blinking yellow (25Hz)**|Communication with BMS Logic is established
200 200  
201 -(% style="width:539px" %)
202 -|(% style="width:176px" %)**State**|(% style="width:360px" %)**Description**
203 -|(% style="width:176px" %)**Blinking red**|(% style="width:360px" %)Errors in communication with BMS Logic
237 +=== DS4 – error indicator ===
204 204  
205 -=== 2.4.5 DS7 – relay 1 indicator ===
206 206  
207 -(% style="width:541px" %)
208 -|(% style="width:179px" %)**State**|(% style="width:359px" %)**Description**
209 -|(% style="width:179px" %)**Lights green**|(% style="width:359px" %)Relay #1 is closed
210 -|(% style="width:179px" %)**Off**|(% style="width:359px" %)Relay #1 is opened
240 +|(**State**|**Description**
241 +|(**Blinking red**|Errors in communication with BMS Logic
211 211  
212 -=== 2.4.6 DS8 – relay 2 indicator ===
243 +=== DS7 – relay 1 indicator ===
213 213  
214 -(% style="width:542px" %)
215 -|(% style="width:180px" %)**State**|(% style="width:359px" %)**Description**
216 -|(% style="width:180px" %)**Lights green**|(% style="width:359px" %)Relay #2 is closed
217 -|(% style="width:180px" %)**Off**|(% style="width:359px" %)Relay #2 is opened
245 +|**State**|**Description**
246 +|**Lights green**|Relay #1 is closed
247 +|**Off**|Relay #1 is opened
218 218  
219 -=== 2.4.7 DS5 – relay 3 indicator ===
249 +=== DS8 – relay 2 indicator ===
220 220  
221 -(% style="width:542px" %)
222 -|(% style="width:183px" %)**State**|(% style="width:356px" %)**Description**
223 -|(% style="width:183px" %)**Lights green**|(% style="width:356px" %)Relay #3 is closed
224 -|(% style="width:183px" %)**Off**|(% style="width:356px" %)Relay #3 is opened
251 +|**State**|**Description**
252 +|**Lights green**|Relay #2 is closed
253 +|**Off**|Relay #2 is opened
225 225  
226 -=== 2.4.8 DS6 – relay 4 indicator ===
255 +=== DS5 – relay 3 indicator ===
227 227  
228 -(% style="width:542px" %)
229 -|(% style="width:187px" %)**State**|(% style="width:352px" %)**Description**
230 -|(% style="width:187px" %)**Lights green**|(% style="width:352px" %)Relay #4 is closed
231 -|(% style="width:187px" %)**Off**|(% style="width:352px" %)Relay #4 is opened
257 +|**State**|**Description**
258 +|**Lights green**|Relay #3 is closed
259 +|**Off**|Relay #3 is opened
232 232  
261 +=== DS6 – relay 4 indicator ===
262 +
263 +|**State**|**Description**
264 +|**Lights green**|Relay #4 is closed
265 +|**Off**|Relay #4 is opened
266 +
233 233  
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