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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 51.8
edited by Admin
on 2026/04/01 08:35
Change comment: There is no comment for this version
To version 16.43
edited by Admin
on 2024/12/26 15:10
Change comment: There is no comment for this version

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Content
... ... @@ -4,17 +4,11 @@
4 4  (% data-numbered-headings-start="4" style="--numbered-headings-start: 3;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
5 5  == Protections ==
6 6  
7 -The BMS Main 3 / BMS Main 2R device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
7 +The BMS Main 3 device continuously monitors the state of the cells, the external environment and, when detecting abnormalities, protects the battery and system components from damage.
8 8  
9 -(% class="box errormessage" %)
10 -(((
11 -**Attention!**
12 -Behavior of contactors at different errors is configured in **corresponding contactor settings**!
13 -)))
14 -
15 15  === Overcurrent ===
16 16  
17 -The BMS Main 3 / BMS Main 2R device performs the overcurrent protection depending on current sensor values.
11 +The BMS Main 3 device performs the overcurrent protection depending on current sensor values.
18 18  
19 19  To change the overcurrent protection of the battery, select the "Protections → Overcurrent" section:
20 20  
... ... @@ -22,14 +22,14 @@
22 22  
23 23  In this section:
24 24  
25 -* **Enable **– a flag to enable the protection;
26 -* **Maximum charging current**, А;
27 -* **Tolerant charging current**, А;
28 -* **Maximum discharging current**, А;
29 -* **Tolerant discharging current**, А;
30 -* **Delay before setting the error**, millisecond;
31 -* **Delay before clearing the error**, second;
32 -* **Lock **– a flag to block the error until the device is restarted.
19 +* Enable – a flag to enable the protection;
20 +* Maximum charging current, А;
21 +* Tolerant charging current, А;
22 +* Maximum discharging current, А;
23 +* Tolerant discharging current, А;
24 +* Delay before setting the error, millisecond;
25 +* Delay before clearing the error, second;
26 +* Lock – a flag to block the error until the device is restarted.
33 33  
34 34  As a result of operation of the overcurrent protection, the "Overcurrent" error is generated.
35 35  
... ... @@ -43,47 +43,33 @@
43 43  * the current is positive (charging) or zero, and its modulo value is less than the “Tolerant charging current” value for the “Delay before clearing the error” time;
44 44  * the current is negative (discharging) or zero, and its modulo value is less than the “Tolerant discharging current” value for the “Delay before clearing the error” time.
45 45  
40 +(% class="box infomessage" %)
41 +(((
42 +If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43 +)))
44 +
46 46  === Charge current limit ===
47 47  
48 -The BMS Main 3 / BMS Main 2R device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
47 +The BMS Main 3 device can check if the charging current exceeds the estimated limit based on the [[Charge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HChargemap"]].  If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
49 49  
50 -Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
49 +Current difference is configured by two regions separated by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
51 51  
52 52  To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
53 53  
54 54  [[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section:
55 55  
56 -* **Enable **– a flag to enable the protection;
57 -* **Threshold to switch from Region 1 to Region 2** – a current value at which current excess calculation will be switched from absolute to relative difference, A;
58 -* **Region 1: Current difference** – a value of maximum absolute current difference, A;
59 -* **Region 2: Current difference** – a value of maximum relative current excess, A;
60 -* **Delay before setting the error**, millisecond;
61 -* **Delay before clearing the error**, second;
62 -* **Lock **– a flag to block the error until the device is restarted.
55 +* Enable – a flag to enable the protection;
56 +* Threshold to switch from Region 1 to Region 2
57 +*
63 63  
59 +
64 64  === Discharge current limit ===
65 65  
66 -The BMS Main 3 / BMS Main 2R device can check if the discharging current exceeds the estimated limit based on the [[Discharge map>>doc:Battery management systems.BMS Main 3.3\. Configuration.3\.3 Control.WebHome||anchor="HDischargemap"]]. If current exceeds the calculated limit more than configured difference, "Current limit" error is generated.
62 +TBA
67 67  
68 -Current difference is separated to two regions by the threshold value. Maximum current in Region 1 is calculated by the absolute difference, in Region 2 – by the relative difference.
69 -
70 -To change the overcurrent protection of the battery, select the "Protections → Discharge current limit" section:
71 -
72 -[[image:1735225942893-869.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]
73 -
74 -In this section:
75 -
76 -* **Enable **– a flag to enable the protection;
77 -* **Threshold to switch from Region 1 to Region 2** – a current value at which current excess calculation will be switched from absolute to relative difference, A;
78 -* **Region 1: Current difference** – a value of maximum absolute current difference, A;
79 -* **Region 2: Current difference** – a value of maximum relative current excess, A;
80 -* **Delay before setting the error**, millisecond;
81 -* **Delay before clearing the error**, second;
82 -* **Lock **– a flag to block the error until the device is restarted.
83 -
84 84  === Undervoltage ===
85 85  
86 -The BMS Main 3 / BMS Main 2R device implements battery protection from too low voltage on the cells.
66 +The BMS Main 3 device implements battery protection from too low voltage on the cells.
87 87  
88 88  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
89 89  
... ... @@ -91,13 +91,13 @@
91 91  
92 92  In this section:
93 93  
94 -* **Enable **– a flag to enable the protection;
95 -* **Minimum cell voltage**, V;
96 -* **Tolerant cell voltage**, V;
97 -* **Check the open circuit voltage instead of the actual voltage** – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
98 -* **Delay before setting the error**, millisecond;
99 -* **Delay before clearing the error**, second;
100 -* **Lock **– a flag to block the error until the device is restarted.
74 +* Enable – a flag to enable the protection;
75 +* Minimum cell voltage, V;
76 +* Tolerant cell voltage, V;
77 +* Check the open circuit voltage instead of the actual voltage – a flag to enable the check of voltage correction due to current and cell resistance;
78 +* Delay before setting the error, millisecond;
79 +* Delay before clearing the error, second;
80 +* Lock – a flag to block the error until the device is restarted.
101 101  
102 102  As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
103 103  
... ... @@ -109,9 +109,14 @@
109 109  
110 110  * the minimum voltage among all cells of the battery is greater than the “Tolerant cell voltage” value for the “Delay before clearing the error” time.
111 111  
92 +(% class="box infomessage" %)
93 +(((
94 +If there is the "Undervoltage" error, the **discharging **contactor opens.
95 +)))
96 +
112 112  === Overvoltage ===
113 113  
114 -The BMS Main 3 / BMS Main 2R device implements battery protection from too high voltage on the cells.
99 +The BMS Main 3 device implements battery protection from too high voltage on the cells.
115 115  
116 116  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
117 117  
... ... @@ -119,13 +119,13 @@
119 119  
120 120  In this section:
121 121  
122 -* **Enable **– a flag to enable the protection;
123 -* **Maximum cell voltage**, V;
124 -* **Tolerant cell voltage**, V;
125 -* **Check the open circuit voltage instead of the actual voltage** – a flag to use the U,,ocv,, (corrected due to current and cell resistance) cell voltage;
126 -* **Delay before setting the error**, millisecond;
127 -* **Delay before clearing the error**, second;
128 -* **Lock **– a flag to block the error until the device is restarted.
107 +* Enable – a flag to enable the protection;
108 +* Maximum cell voltage, V;
109 +* Tolerant cell voltage, V;
110 +* Check the open circuit voltage instead of the actual voltage – a flag to enable the check of voltage correction due to current and cell resistance;
111 +* Delay before setting the error, millisecond;
112 +* Delay before clearing the error, second;
113 +* Lock – a flag to block the error until the device is restarted.
129 129  
130 130  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
131 131  
... ... @@ -137,34 +137,14 @@
137 137  
138 138  * the maximum voltage among all cells of the battery is less than the “Tolerant cell voltage” value for the “Delay before clearing the error” time.
139 139  
140 -=== Cell imbalance ===
125 +(% class="box infomessage" %)
126 +(((
127 +If there is the "Overvoltage" error, the **charging** contactor and **discharging **contactor open (if the “Switch off the discharging contactor on error” flag is set).
128 +)))
141 141  
142 -The BMS Main 3 / BMS Main 2R device implements battery protection from too much cell imbalance. If balancing algorithm is not enough to compensate battery imbalance, then imbalance protection generates an error when imbalance is above estimated threshold.
143 -
144 -To change the battery protection parameters from cell imbalance, select the "Protections → Cell imbalance" section:
145 -
146 -[[image:1760437465709-702.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="133" width="800"]]In this section:
147 -
148 -* **Enable **– a flag to enable the protection;
149 -* **Maximum cell imbalance**, V;
150 -* **Tolerant cell imbalance**, V;
151 -* **Delay before setting the error**, millisecond;
152 -* **Delay before clearing the error**, second;
153 -* **Lock **– a flag to block the error until the device is restarted.
154 -
155 -As a result of the operation of the battery protection from cell imbalance, the "Cell imbalance” error is generated.
156 -
157 -Error generation conditions:
158 -
159 -* the voltage difference between the most charged cell and the least charged cell is more than the “Maximum cell imbalance” value for the “Delay before setting the error” time.
160 -
161 -Conditions for removing the error:
162 -
163 -* the voltage difference between the most charged cell and the least charged cell is less than the “Tolerant cell imbalance” value for the “Delay before clearing the error” time.
164 -
165 165  === Low temperature ===
166 166  
167 -The BMS Main 3 / BMS Main 2R device implements battery protection from too low temperature.
132 +The BMS Main 3 device implements battery protection from too low temperature.
168 168  
169 169  To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
170 170  
... ... @@ -172,14 +172,14 @@
172 172  
173 173  In this section:
174 174  
175 -* **Enable **– a flag to enable the protection;
176 -* **Minimum charge temperature**, °C;
177 -* **Tolerant charge temperature**, °C;
178 -* **Minimum discharge temperature**, °C;
179 -* **Tolerant discharge temperature**, °C;
180 -* **Delay before setting the error**, millisecond;
181 -* **Delay before clearing the error**, second;
182 -* **Lock **– a flag to block the error until the device is restarted.
140 +* Enable – a flag to enable the protection;
141 +* Minimum charge temperature, °C;
142 +* Tolerant charge temperature, °C;
143 +* Minimum discharge temperature, °C;
144 +* Tolerant discharge temperature, °C;
145 +* Delay before setting the error, millisecond;
146 +* Delay before clearing the error, second;
147 +* Lock – a flag to block the error until the device is restarted.
183 183  
184 184  As a result of the operation of the battery protection from low temperature, the "Low temperature (CH)" and/or “Low temperature (DCH)” error are generated.
185 185  
... ... @@ -191,9 +191,15 @@
191 191  
192 192  * the minimum temperature among all cells of the battery is greater than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
193 193  
159 +(% class="box infomessage" %)
160 +(((
161 +If there is the "Low temperature (CH)" error, the **charging **contactor opens.
162 +If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
163 +)))
164 +
194 194  === High temperature ===
195 195  
196 -The BMS Main 3 / BMS Main 2R device implements battery protection from too high temperature.
167 +The BMS Main 3 device implements battery protection from too high temperature.
197 197  
198 198  To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
199 199  
... ... @@ -201,14 +201,14 @@
201 201  
202 202  In this section:
203 203  
204 -* **Enable **– a flag to enable the protection;
205 -* **Maximum charge temperature**, °C;
206 -* **Tolerant charge temperature**, °C;
207 -* **Maximum discharge temperature**, °C;
208 -* **Tolerant discharge temperature**, °C;
209 -* **Delay before setting the error**, millisecond;
210 -* **Delay before clearing the error**, second;
211 -* **Lock **– a flag to block the error until the device is restarted.
175 +* Enable – a flag to enable the protection;
176 +* Maximum charge temperature, °C;
177 +* Tolerant charge temperature, °C;
178 +* Maximum discharge temperature, °C;
179 +* Tolerant discharge temperature, °C;
180 +* Delay before setting the error, millisecond;
181 +* Delay before clearing the error, second;
182 +* Lock – a flag to block the error until the device is restarted.
212 212  
213 213  As a result of the operation of the battery protection from high temperature, the "High temperature (CH)" or “High temperature (DCH)” error is generated.
214 214  
... ... @@ -220,6 +220,12 @@
220 220  
221 221  * the maximum temperature among all cells of the battery is less than the “Tolerant charging (discharging) temperature” value for the “Delay before clearing the error” time.
222 222  
194 +(% class="box infomessage" %)
195 +(((
196 +If there is the "High temperature (CH)" error, the **charging **contactor opens.
197 +If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
198 +)))
199 +
223 223  === Battery cover ===
224 224  
225 225  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -228,10 +228,10 @@
228 228  
229 229  In this section:
230 230  
231 -* **Enable** – a flag to enable the protection;
232 -* **Delay before setting the error**, millisecond;
233 -* **Delay before clearing the error**, second;
234 -* **Lock **– a flag to block the error until the device is restarted.
208 +* Enable – a flag to enable the protection;
209 +* Delay before setting the error, millisecond;
210 +* Delay before clearing the error, second;
211 +* Lock – a flag to block the error until the device is restarted.
235 235  
236 236  As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
237 237  
... ... @@ -245,12 +245,12 @@
245 245  
246 246  (% class="box warningmessage" %)
247 247  (((
248 -If there is the "Battery cover error", the **“Critical error” **is generated**.**
225 +If there is the "Battery cover error", the **“Critical error” **is generated **and all contactors open.**
249 249  )))
250 250  
251 251  === High humidity ===
252 252  
253 -The BMS Main 3 / BMS Main 2R can detect that the battery is operating in high humidity conditions.
230 +The BMS Main 3 can detect that the battery is operating in high humidity conditions.
254 254  
255 255  To change the detection parameters, select the "Protections → High humidity" section:
256 256  
... ... @@ -258,12 +258,12 @@
258 258  
259 259  In this section:
260 260  
261 -* **Enable **– a flag to enable the detection;
262 -* **Maximum humidity**, RH%;
263 -* **Tolerant humidity**, RH%;
264 -* **Delay before setting the error**, second;
265 -* **Delay before clearing the error**, second;
266 -* **Lock **– a flag to block the error until the device is restarted.
238 +* Enable – a flag to enable the detection;
239 +* Maximum humidity, RH%;
240 +* Tolerant humidity, RH%;
241 +* Delay before setting the error, second;
242 +* Delay before clearing the error, second;
243 +* Lock the error until the device is reset.
267 267  
268 268  As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
269 269  
... ... @@ -282,7 +282,7 @@
282 282  
283 283  === Water ===
284 284  
285 -The BMS Main 3 / BMS Main 2R can protect the battery from working in very high humidity conditions.
262 +The BMS Main 3 can protect the battery from working in very high humidity conditions.
286 286  
287 287  To change the protection parameters, select the "Protections → Water" section:
288 288  
... ... @@ -290,12 +290,12 @@
290 290  
291 291  In this section:
292 292  
293 -* **Enable **– a flag to enable the protection;
294 -* **Maximum humidity**, RH%;
295 -* **Tolerant humidity**, RH%;
296 -* **Delay before setting the error**, second;
297 -* **Delay before clearing the error**, second;
298 -* **Lock **– lock the error until the device is reset.
270 +* Enable – a flag to enable the protection;
271 +* Maximum humidity, RH%;
272 +* Tolerant humidity, RH%;
273 +* Delay before setting the error, second;
274 +* Delay before clearing the error, second;
275 +* Lock – lock the error until the device is reset.
299 299  
300 300  As a result of the operation of the battery protection from water, the "Water" error is generated.
301 301  
... ... @@ -307,9 +307,9 @@
307 307  
308 308  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
309 309  
310 -(% class="box warningmessage" %)
287 +(% class="box infomessage" %)
311 311  (((
312 -If there is the “Water” error, the **“Critical error”** is generated.
289 +If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.
313 313  )))
314 314  
315 315  === Logic high temperature ===
... ... @@ -320,12 +320,12 @@
320 320  
321 321  In this section:
322 322  
323 -* **Enable **– a flag to enable the protection;
324 -* **Maximum temperature**, °C;
325 -* **Tolerant temperature**, °C;
326 -* **Delay before setting the error**, second;
327 -* **Delay before clearing the error**, second;
328 -* **Lock **– lock the error until the device is reset.
300 +* Enable – a flag to enable the protection;
301 +* Maximum temperature, °C;
302 +* Tolerant temperature, °C;
303 +* Delay before setting the error, second;
304 +* Delay before clearing the error, second;
305 +* Lock – lock the error until the device is reset.
329 329  
330 330  As a result of the operation of the protection from high temperatures of BMS Logic devices, the "High Logic temperature" is generated.
331 331  
... ... @@ -346,15 +346,12 @@
346 346  
347 347  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
348 348  
349 -[[image:1755871522789-489.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
326 +[[image:1733328399416-818.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="86" width="800"]]
350 350  
351 -
352 352  In this section:
353 353  
354 -* **Enable **– a flag to enable the protection;
355 -* **Delay before setting the error**, second;
356 -* **Delay before clearing the error**, second;
357 -* **Lock **– lock the error until the device is reset.
330 +* Enable – a flag to enable the protection;
331 +* Lock – lock the error until the device is reset.
358 358  
359 359  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
360 360  
... ... @@ -368,7 +368,7 @@
368 368  
369 369  (% class="box warningmessage" %)
370 370  (((
371 -If there is the "Logic offline" error, the **“Critical error” **is generated**.**
345 +If there is the "Logic offline" error, the **“Critical error” **is generated and **all relays open.**
372 372  )))
373 373  
374 374  === Cell count ===
... ... @@ -379,11 +379,11 @@
379 379  
380 380  In this section:
381 381  
382 -* **Enable** – a flag to enable the protection;
383 -* **Number of cells** – a number of cells connected to the BMS;
384 -* **Delay before setting the error**, millisecond;
385 -* **Delay before clearing the error**, second;
386 -* **Lock **– a flag to block the error until the device is restarted.
356 +* Enable – a flag to enable the protection;
357 +* Number of cells – a number of cells connected to the BMS;
358 +* Delay before setting the error, millisecond;
359 +* Delay before clearing the error, second;
360 +* Lock – a flag to block the error until the device is restarted.
387 387  
388 388  As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
389 389  
... ... @@ -397,73 +397,40 @@
397 397  
398 398  (% class="box warningmessage" %)
399 399  (((
400 -If there is the "Cell count error", the **“Critical error” **is generated**.**
374 +If there is the "Cell count error", the **“Critical error” **is generated and **all relays open.**
401 401  )))
402 402  
403 -=== Temperature sensor count ===
404 -
405 -To change the protection parameters from the mismatch of the number of temperature sensors to the set value, select the "Protections → Temperature sensor count" section:
406 -
407 -[[image:1755871582533-550.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="123" width="800"]]
408 -
409 -In this section:
410 -
411 -* **Enable **– a flag to enable the protection;
412 -* **Number of cells** – a number of temperature sensors connected to the BMS;
413 -* **Delay before setting the error**, millisecond;
414 -* **Delay before clearing the error**, second;
415 -* **Lock **– a flag to block the error until the device is restarted.
416 -
417 -As a result of the operation of the protection from the mismatch of the number of cells, the "T-sensor count error" is generated.
418 -
419 -Error generation conditions:
420 -
421 -* the number of temperature sensors connected to the BMS is **not equal** to the “Number of temperature sensors” value during the “Delay before setting the error” time.
422 -
423 -Conditions for removing the error:
424 -
425 -* the number of temperature sensors connected to the BMS is **equal** to the “Number of temperature sensors” value during the “Delay before clearing the error” time.
426 -
427 -(% class="box warningmessage" %)
428 -(((
429 -If there is the "T-sensor count error", the **“Critical error” **is generated**.**
430 -)))
431 -
432 432  === Logic count ===
433 433  
434 434  To change the protection parameters from the mismatch of the number of BMS Logic devices to the set value, select the "Protections → Logic count” section:
435 435  
436 -[[image:1762425434368-516.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="125" width="800"]]
381 +[[image:1733328415732-163.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]
437 437  
438 438  In this section:
439 439  
440 -* **Enable **– a flag to enable the protection;
441 -* **Logic count** – a number of BMS Logic devices connected to the BMS Main;
442 -* **Scan fast** – a flag to scan BMS Logic devices fast (devices with addresses from 1 to “Logic count” are scanned; this mode reduces BMS system startup time);
443 -* **Delay before setting the error** – a delay before setting the error //during initialization//, millisecond;
444 -* **Delay before clearing the error **– a delay before clearing the error //during initialization//, second;
445 -* **Lock** – lock the error until the device is reset.
385 +* Enable – a flag to enable the protection;
386 +* Logic count – a number of BMS Logic devices connected to the BMS Main;
387 +* Scan fast – a flag to scan BMS Logic devices fast (devices with addresses from 1 to “Logic count” are scanned; this mode reduces BMS system startup time);
388 +* Lock – lock the error until the device is reset.
446 446  
447 447  As a result of the operation of the protection from the mismatch of the number of BMS Logic devices, the "Logic count error" is generated.
448 448  
449 449  Error generation conditions:
450 450  
451 -* during the initialization BMS Main 3 / BMS Main 2R have not found required number of BMS Logic devices during the "Delay before setting the error" time;
452 -* after the initialization the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
394 +* the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
453 453  
454 454  Conditions for removing the error:
455 455  
456 -* during the initialization BMS Main 3 / BMS Main 2R have found required number of BMS Logic devices and the "Delay before setting the error" time has passed;
457 -* after the initialization the number of BMS Logic devices connected to the BMS Main is **equal** to the “Logic count” value.
398 +* the number of BMS Logic devices connected to the BMS Main is **equal** to the “Logic count” value.
458 458  
459 459  (% class="box warningmessage" %)
460 460  (((
461 -If there is the "Logic count error", the **“Critical error”** is generated.
402 +If there is the "Logic count error", the **“Critical error”** is generated and **all relays open.**
462 462  )))
463 463  
464 464  === Short circuit ===
465 465  
466 -The BMS Main 3 / BMS Main 2R device implements the protection of power circuits (contactors, power wires) against overheating caused by the flow of high current for a long time.
407 +The BMS Main 3 device implements the protection of power circuits (contactors, power wires) against overheating caused by the flow of high current for a long time.
467 467  
468 468  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
469 469  
... ... @@ -471,12 +471,12 @@
471 471  
472 472  In this section:
473 473  
474 -* **Level 1, 2, 3** – three protection levels. The following parameters are configured at each level:
475 -** **Enable **– a flag to enable the protection;
476 -** **Maximum current**, A;
477 -** **Delay before setting the error**, second;
478 -* **Delay before clearing the error**, second;
479 -* **Lock **– a flag to block the error until the device is restarted.
415 +* Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
416 +** Enable – a flag to enable the protection;
417 +** Maximum current, A;
418 +** Delay before setting the error, second;
419 +* Delay before clearing the error, second;
420 +* Lock – a flag to block the error until the device is restarted.
480 480  
481 481  If there is a short circuit, the "Short circuit" error is generated.
482 482  
... ... @@ -488,9 +488,14 @@
488 488  
489 489  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
490 490  
432 +(% class="box infomessage" %)
433 +(((
434 +If there is the "Short circuit" error, **charging **contactor opens (if the “Switch off the charging contactor on error” flag is set) and **discharging **contactor opens (if the “Switch off the discharging contactor on error flag” is set).
435 +)))
436 +
491 491  === High contactor temperature ===
492 492  
493 -The BMS Main 3 / BMS Main 2R device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X5 connector is used.
439 +The BMS Main 3 device protects power contactors from overheating. To measure the temperature of the contactor, one of the thermistors connected to the X5 connector is used.
494 494  
495 495  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
496 496  
... ... @@ -498,13 +498,13 @@
498 498  
499 499  In this section:
500 500  
501 -* **Enable** – a flag to enable the protection;
502 -* **Thermistor **– a selection of which cell thermistor will be used as contactor temperature sensor;
503 -* **Maximum contactor temperature**, °C;
504 -* **Tolerant contactor temperature**, °C;
505 -* **Delay before setting the error**, second;
506 -* **Delay before clearing the error**, second;
507 -* **Lock **– a flag to block the error until the device is restarted.
447 +* Enable – a flag to enable the protection;
448 +* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
449 +* Maximum contactor temperature, °C;
450 +* Tolerant contactor temperature, °C;
451 +* Delay before setting the error, second;
452 +* Delay before clearing the error, second;
453 +* Lock – a flag to block the error until the device is restarted.
508 508  
509 509  If there is a contactor overheat, the "High contactor temperature" error is generated.
510 510  
... ... @@ -516,9 +516,14 @@
516 516  
517 517  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
518 518  
465 +(% class="box infomessage" %)
466 +(((
467 +If there is the "High contactor temperature" error, **charging **contactor opens (if the “Switch off the charging contactor on error” flag is set) and **discharging **contactor opens (if the “Switch off the discharging contactor on error” flag is set).
468 +)))
469 +
519 519  === Current sensor ===
520 520  
521 -The BMS Main 3 / BMS Main 2R device checks the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
472 +The BMS Main 3 device checks the current sensor connection circuits. The circuits are checked for breakage and short-circuit to the +5 V supply line.
522 522  
523 523  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
524 524  
... ... @@ -526,13 +526,13 @@
526 526  
527 527  In this section:
528 528  
529 -* **Enable **– a flag to enable the protection;
530 -* **Maximum voltage**, V;
531 -* **Minimum voltage**, V;
532 -* **Voltage hysteresis** – a hysteresis value to clear the error, V;
533 -* **Delay before setting the error**, second;
534 -* **Delay before clearing the error**, second;
535 -* **Lock **– a flag to block the error until the device is restarted.
480 +* Enable – a flag to enable the protection;
481 +* Maximum voltage, V;
482 +* Minimum voltage, V;
483 +* Voltage hysteresis – a hysteresis value to clear the error, V;
484 +* Delay before setting the error, second;
485 +* Delay before clearing the error, second;
486 +* Lock – a flag to block the error until the device is restarted.
536 536  
537 537  If there is an open or short circuit connection of a current sensor, the "Current sensor error" is generated.
538 538  
... ... @@ -547,16 +547,11 @@
547 547  
548 548  (% class="box warningmessage" %)
549 549  (((
550 -If there is the “Current sensor error”, the **“Critical error” **is generated.
501 +If there is the “Current sensor error”, the **“Critical error” **is generated and **all relays open.**
551 551  )))
552 552  
553 553  === Power switch ===
554 554  
555 -(% class="box warningmessage" %)
556 -(((
557 -This section is not available on BMS Main 2R.
558 -)))
559 -
560 560  BMS Main 3 device checks the status of power switches that are used to control the contactors. To change the parameters of the power switch protection, select the "Protections → Power switch" section:
561 561  
562 562  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
... ... @@ -563,7 +563,7 @@
563 563  
564 564  In this section:
565 565  
566 -* **Delay before clearing the error**, second;
512 +* Delay before clearing the error, second;
567 567  * Lock – a flag to block the error until the device is restarted.
568 568  
569 569  The “Power switch error” occurs when the device detects a shortage in contactor coil control circuit or an overheating of the power switch. Error is removed when the temperature of power switch is normal during “Delay before clearing the error” time.
... ... @@ -570,47 +570,16 @@
570 570  
571 571  (% class="box warningmessage" %)
572 572  (((
573 -If there is the "Power switch error", the **“Critical error” **is generated.
519 +If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
574 574  )))
575 575  
576 576  === Power fault ===
577 577  
578 -(% class="box warningmessage" %)
579 -(((
580 -This section is not available on BMS Main 2R.
581 -)))
524 +TBA
582 582  
583 -BMS Main 3 device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
584 -
585 -(% class="box infomessage" %)
586 -(((
587 -**Note:** this error can be configured only under** "Service" account**.
588 -)))
589 -
590 -To change the parameters of the power fault error, select the "Protections → Power fault" section:
591 -
592 -[[image:1739284154410-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]
593 -
594 -In this section:
595 -
596 -* Enable – a flag to enable the protection;
597 -* Delay before setting the error, millisecond;
598 -* Time to keep power off, millisecond;
599 -* Delay before clearing the error, millisecond;
600 -* Lock – a flag to block the error until the device is restarted.
601 -
602 -The “Power fault” occurs when the device detects a shortage or high power consumption in power supplies mentioned above. After that BMS turns off the corresponding power supply for "Time to keep power off", then it tries to enable power again.
603 -
604 -Error is removed when the power consumption is normal during “Delay before clearing the error” time.
605 -
606 -(% class="box warningmessage" %)
607 -(((
608 -If there is the "Power fault", the **“Critical error” **is generated.
609 -)))
610 -
611 611  === Charge contactor cycles ===
612 612  
613 -The BMS Main 3 / BMS Main 2R device protects the charging contactor against frequent switching.
528 +The BMS Main 3 device protects the charging contactor against frequent switching.
614 614  
615 615  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
616 616  
... ... @@ -635,9 +635,14 @@
635 635  
636 636  * the “Delay before clearing the error” time has passed since the error was generated.
637 637  
553 +(% class="box infomessage" %)
554 +(((
555 +If there is the "CH contactor cycles error" error, the **charging **contactor opens.
556 +)))
557 +
638 638  === Discharge contactor cycles ===
639 639  
640 -The BMS Main 3 / BMS Main 2R device protects the discharging contactor against frequent switching.
560 +The BMS Main 3 device protects the discharging contactor against frequent switching.
641 641  
642 642  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
643 643  
... ... @@ -662,9 +662,14 @@
662 662  
663 663  * the “Delay before clearing the error” time has passed since the error was generated.
664 664  
585 +(% class="box infomessage" %)
586 +(((
587 +If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
588 +)))
589 +
665 665  === Temperature sensors ===
666 666  
667 -The BMS Main 3 / BMS Main 2R device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
592 +The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
668 668  
669 669  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
670 670  
... ... @@ -681,7 +681,7 @@
681 681  
682 682  (% class="box warningmessage" %)
683 683  (((
684 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated.
609 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**
685 685  )))
686 686  
687 687  === WDT reset ===
... ... @@ -704,7 +704,7 @@
704 704  
705 705  (% class="box warningmessage" %)
706 706  (((
707 -If there is the "WDT reset" error, the **“Critical error” **is generated.
632 +If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**
708 708  )))
709 709  
710 710  === Unallowable charging ===
... ... @@ -732,9 +732,14 @@
732 732  
733 733  * the battery current is zero during the “Delay before clearing the error” time.
734 734  
660 +(% class="box infomessage" %)
661 +(((
662 +If there is the "Unallowable charging" error, the **discharging **contactor opens.
663 +)))
664 +
735 735  === Stuck contactor ===
736 736  
737 -The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
667 +The BMS Main 3 device protects contactors against sticking.
738 738  
739 739  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
740 740  
... ... @@ -755,12 +755,12 @@
755 755  
756 756  (% class="box warningmessage" %)
757 757  (((
758 -If there is the “Stuck contactor” error, the **“Critical error” **is generated.
688 +If there is the “Stuck contactor” error, the **“Critical error” **is generated and **all relays open.**
759 759  )))
760 760  
761 761  === Contactor feedback ===
762 762  
763 -The BMS Main 3 / BMS Main 2R device can receive feedback signals from contactors and detect discrepancy between the control value and the feedback signal. To enable specific contactor protection, the feedback signal must be connected to the corresponding contactor feedback pin on the X3 header.
693 +The BMS Main 3 device can receive feedback signals from contactors and detect discrepancy between the control value and the feedback signal. To enable specific contactor protection, the feedback signal must be connected to the corresponding contactor feedback pin on the X3 header.
764 764  
765 765  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
766 766  
... ... @@ -779,12 +779,12 @@
779 779  
780 780  (% class="box warningmessage" %)
781 781  (((
782 -If there is the “Contactor feedback” error, the **“Critical error” **is generated.
712 +If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
783 783  )))
784 784  
785 785  === Insulation ===
786 786  
787 -The BMS Main 3 / BMS Main 2R device can detect a physical signal or CAN bus message from an external insulation monitoring device (such as Bender IR155, iso165C, BMD IMD) to monitor the insulation quality.
717 +The BMS Main 3 device can detect a physical signal or CAN bus message from an external insulation monitoring device (such as Bender IR155, iso165C, BMD IMD) to monitor the insulation quality.
788 788  
789 789  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
790 790  
... ... @@ -805,12 +805,12 @@
805 805  
806 806  (% class="box warningmessage" %)
807 807  (((
808 -If there is the “Insulation fault”, the **“Critical error”** is generated.
738 +If there is the “Insulation fault”, the **“Critical error”** is generated and **all relays open.**
809 809  )))
810 810  
811 811  === HVIL ===
812 812  
813 -The BMS Main 3 / BMS Main 2R allows to control the high voltage interlock loop by applying current to a testing loop and monitoring the difference between the measured current and the required value.
743 +The BMS Main 3 allows to control the high voltage interlock loop by applying current to a testing loop and monitoring the difference between the measured current and the required value.
814 814  
815 815  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
816 816  
... ... @@ -825,66 +825,58 @@
825 825  * Source is ON: Upper current limit, A;
826 826  * Lock – a flag to block the error until the device is restarted.
827 827  
828 -If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
758 +If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated. Error clears if interlock loop is being restored.
829 829  
830 -Error clears if interlock loop is being restored.
831 -
832 832  (% class="box warningmessage" %)
833 833  (((
834 -If there is the “HVIL error”, the **“Critical error”** is generated.
762 +If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.**
835 835  )))
836 836  
837 -=== Battery voltage ===
765 +=== Critical error ===
838 838  
839 -The BMS Main 3 / BMS Main 2R allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
767 +To change the critical error parameters, select the "Protections → Critical error" section:
840 840  
841 -To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
769 +[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
842 842  
843 -[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
844 -
845 845  In this section:
846 846  
847 847  * Enable – a flag to enable the protection;
848 -* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
849 -* Delay before setting the error, second;
774 +* Delay before setting the error, millisecond;
850 850  * Delay before clearing the error, second;
851 851  * Lock – a flag to block the error until the device is restarted.
852 852  
853 -If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
778 +The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
854 854  
855 -Error generation conditions:
780 +* “Battery cover error”;
781 +* “Water”;
782 +* “Logic offline”;
783 +* “Cell count error”;
784 +* “ADC error”;
785 +* “Current sensor error”;
786 +* “Shunt offline”;
787 +* “Shunt error”;
788 +* “WDT reset”
789 +* “No temp. sensors”;
790 +* “Temperature sensor shorted”;
791 +* “Stuck contactor”;
792 +* “CH contactor feedback error”;
793 +* “DCH contactor feedback error”;
794 +* “Insulation fault”;
795 +* “PCH contactor feedback error”;
796 +* “CH/DCH contactor feedback error”;
797 +* “Main contactor feedback error”;
798 +* “High voltage fault”;
799 +* “Power switch error”;
800 +* “HVIL error”l
801 +* “Power fault”.
856 856  
857 -* difference between sum of all cell voltages and voltage measured before the contactors is **more **than "Abnormal voltage difference" value during "Delay before setting the error" time.
803 +The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
858 858  
859 -Conditions for removing the error:
860 -
861 -* difference between sum of all cell voltages and voltage measured before the contactors is **less **than "Abnormal voltage difference" value during "Delay before clearing the error" time.
862 -
863 -(% class="box warningmessage" %)
805 +(% class="box infomessage" %)
864 864  (((
865 -If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
807 +If there is the “Critical error”, **all **contactors open.
866 866  )))
867 867  
868 -=== Critical error ===
869 -
870 -Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
871 -
872 -To change the critical error parameters, select the "Protections → Critical error" section:
873 -
874 -[[image:1762775547945-129.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="117" width="800"]]
875 -
876 -In this section:
877 -
878 -* Enable – a flag to enable the protection;
879 -* Delay before setting the error, millisecond;
880 -* Delay before clearing the error, second;
881 -* Errors 1, 2 to to ignore when setting the critical error;
882 -* Lock – a flag to block the error until the device is restarted.
883 -
884 -The "Critical error" signal is generated if at least one of the critical errors (see [[Errors>>doc:Battery management systems.Additional information.1\. Battery controllers\: signals and errors.WebHome||anchor="HErrors"]]) is generated during the “Delay before setting the error” time.
885 -
886 -The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
887 -
888 888  === General error ===
889 889  
890 890  To change the general error parameters, select the "Protections → Critical error" section:
... ... @@ -899,11 +899,11 @@
899 899  * Lock – a flag to block the error until the device is restarted;
900 900  * Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
901 901  
902 -The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
824 +The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
903 903  
904 904  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
905 905  
906 906  (% class="box infomessage" %)
907 907  (((
908 -The state of the “General error” can be assigned to a discrete output or to a power switch.
830 +The state of the “General error” can be output to a discrete output or a power switch.
909 909  )))
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