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Changes for page 3.4 Protections

Last modified by Admin on 2026/04/01 08:42
From version 17.1
edited by Admin
on 2024/12/26 15:12
Change comment: Uploaded new attachment "1735225942893-869.png", version {1}
To version 51.7
edited by Admin
on 2026/04/01 08:34
Change comment: There is no comment for this version

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... ... @@ -4,11 +4,17 @@
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 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 / 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.
8 8  
9 +(% class="box errormessage" %)
10 +(((
11 +**Attention!**
12 +Behavior of contactors at different errors is configured in **corresponding contactor settings**!
13 +)))
14 +
9 9  === Overcurrent ===
10 10  
11 -The BMS Main 3 device performs the overcurrent protection depending on current sensor values.
17 +The BMS Main 3 / BMS Main 2R device performs the overcurrent protection depending on current sensor values.
12 12  
13 13  To change the overcurrent protection of the battery, select the "Protections → Overcurrent" section:
14 14  
... ... @@ -16,14 +16,14 @@
16 16  
17 17  In this section:
18 18  
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.
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.
27 27  
28 28  As a result of operation of the overcurrent protection, the "Overcurrent" error is generated.
29 29  
... ... @@ -37,14 +37,9 @@
37 37  * 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;
38 38  * 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.
39 39  
40 -(% class="box infomessage" %)
41 -(((
42 -If there is the "Overcurrent" error, the **charging **and **discharging **contactors open.
43 -)))
44 -
45 45  === Charge current limit ===
46 46  
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.
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.
48 48  
49 49  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.
50 50  
... ... @@ -52,22 +52,37 @@
52 52  
53 53  [[image:1735225207687-430.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="113" width="800"]]In this section:
54 54  
55 -* Enable – a flag to enable the protection;
56 -* Threshold to switch from Region 1 to Region 2
57 -*
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.
58 58  
59 -
60 60  === Discharge current limit ===
61 61  
62 -The BMS Main 3 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.
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.
63 63  
64 64  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.
65 65  
66 -To change the overcurrent protection of the battery, select the "Protections → Charge current limit" section:
70 +To change the overcurrent protection of the battery, select the "Protections → Discharge current limit" section:
67 67  
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 +
68 68  === Undervoltage ===
69 69  
70 -The BMS Main 3 device implements battery protection from too low voltage on the cells.
86 +The BMS Main 3 / BMS Main 2R device implements battery protection from too low voltage on the cells.
71 71  
72 72  To change the battery protection parameters from low voltage on the cells, select the "Protections → Undervoltage" section:
73 73  
... ... @@ -75,13 +75,13 @@
75 75  
76 76  In this section:
77 77  
78 -* Enable – a flag to enable the protection;
79 -* Minimum cell voltage, V;
80 -* Tolerant cell voltage, V;
81 -* 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;
82 -* Delay before setting the error, millisecond;
83 -* Delay before clearing the error, second;
84 -* Lock – a flag to block the error until the device is restarted.
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.
85 85  
86 86  As a result of the operation of battery protection from low voltage, the "Undervoltage" error is generated.
87 87  
... ... @@ -93,14 +93,9 @@
93 93  
94 94  * 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.
95 95  
96 -(% class="box infomessage" %)
97 -(((
98 -If there is the "Undervoltage" error, the **discharging **contactor opens.
99 -)))
100 -
101 101  === Overvoltage ===
102 102  
103 -The BMS Main 3 device implements battery protection from too high voltage on the cells.
114 +The BMS Main 3 / BMS Main 2R device implements battery protection from too high voltage on the cells.
104 104  
105 105  To change the battery protection parameters from high voltage on the cells, select the "Protections → Overvoltage" section:
106 106  
... ... @@ -108,13 +108,13 @@
108 108  
109 109  In this section:
110 110  
111 -* Enable – a flag to enable the protection;
112 -* Maximum cell voltage, V;
113 -* Tolerant cell voltage, V;
114 -* 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;
115 -* Delay before setting the error, millisecond;
116 -* Delay before clearing the error, second;
117 -* Lock – a flag to block the error until the device is restarted.
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.
118 118  
119 119  As a result of the operation of the battery protection from high voltage, the "Overvoltage" error is generated.
120 120  
... ... @@ -126,14 +126,34 @@
126 126  
127 127  * 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.
128 128  
129 -(% class="box infomessage" %)
130 -(((
131 -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).
132 -)))
140 +=== Cell imbalance ===
133 133  
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 +
134 134  === Low temperature ===
135 135  
136 -The BMS Main 3 device implements battery protection from too low temperature.
167 +The BMS Main 3 / BMS Main 2R device implements battery protection from too low temperature.
137 137  
138 138  To change the battery protection parameters from low temperature, select the "Protections → Low temperature" section:
139 139  
... ... @@ -141,14 +141,14 @@
141 141  
142 142  In this section:
143 143  
144 -* Enable – a flag to enable the protection;
145 -* Minimum charge temperature, °C;
146 -* Tolerant charge temperature, °C;
147 -* Minimum discharge temperature, °C;
148 -* Tolerant discharge temperature, °C;
149 -* Delay before setting the error, millisecond;
150 -* Delay before clearing the error, second;
151 -* Lock – a flag to block the error until the device is restarted.
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.
152 152  
153 153  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.
154 154  
... ... @@ -160,15 +160,9 @@
160 160  
161 161  * 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.
162 162  
163 -(% class="box infomessage" %)
164 -(((
165 -If there is the "Low temperature (CH)" error, the **charging **contactor opens.
166 -If there is the "Low temperature (DCH)" error, the **discharging **contactor opens.
167 -)))
168 -
169 169  === High temperature ===
170 170  
171 -The BMS Main 3 device implements battery protection from too high temperature.
196 +The BMS Main 3 / BMS Main 2R device implements battery protection from too high temperature.
172 172  
173 173  To change the battery protection parameters from high temperature, select the "Protections → High temperature" section:
174 174  
... ... @@ -176,14 +176,14 @@
176 176  
177 177  In this section:
178 178  
179 -* Enable – a flag to enable the protection;
180 -* Maximum charge temperature, °C;
181 -* Tolerant charge temperature, °C;
182 -* Maximum discharge temperature, °C;
183 -* Tolerant discharge temperature, °C;
184 -* Delay before setting the error, millisecond;
185 -* Delay before clearing the error, second;
186 -* Lock – a flag to block the error until the device is restarted.
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.
187 187  
188 188  As a result of the operation of the battery protection from high temperature, the "High temperature (CH)" or “High temperature (DCH)” error is generated.
189 189  
... ... @@ -195,12 +195,6 @@
195 195  
196 196  * 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.
197 197  
198 -(% class="box infomessage" %)
199 -(((
200 -If there is the "High temperature (CH)" error, the **charging **contactor opens.
201 -If there is the "High temperature (DCH)" error, the **discharging **contactor opens.
202 -)))
203 -
204 204  === Battery cover ===
205 205  
206 206  To change the protection parameters from opening the battery cover, select the "Protections → Battery cover" section:
... ... @@ -209,10 +209,10 @@
209 209  
210 210  In this section:
211 211  
212 -* Enable – a flag to enable the protection;
213 -* Delay before setting the error, millisecond;
214 -* Delay before clearing the error, second;
215 -* Lock – a flag to block the error until the device is restarted.
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.
216 216  
217 217  As a result of the operation of the protection against opening the battery cover, the “Battery cover error” is generated.
218 218  
... ... @@ -226,12 +226,12 @@
226 226  
227 227  (% class="box warningmessage" %)
228 228  (((
229 -If there is the "Battery cover error", the **“Critical error” **is generated **and all contactors open.**
248 +If there is the "Battery cover error", the **“Critical error” **is generated**.**
230 230  )))
231 231  
232 232  === High humidity ===
233 233  
234 -The BMS Main 3 can detect that the battery is operating in high humidity conditions.
253 +The BMS Main 3 / BMS Main 2R can detect that the battery is operating in high humidity conditions.
235 235  
236 236  To change the detection parameters, select the "Protections → High humidity" section:
237 237  
... ... @@ -239,12 +239,12 @@
239 239  
240 240  In this section:
241 241  
242 -* Enable – a flag to enable the detection;
243 -* Maximum humidity, RH%;
244 -* Tolerant humidity, RH%;
245 -* Delay before setting the error, second;
246 -* Delay before clearing the error, second;
247 -* Lock the error until the device is reset.
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.
248 248  
249 249  As a result of the operation of the battery protection from high humidity, the "High humidity" error is generated.
250 250  
... ... @@ -263,7 +263,7 @@
263 263  
264 264  === Water ===
265 265  
266 -The BMS Main 3 can protect the battery from working in very high humidity conditions.
285 +The BMS Main 3 / BMS Main 2R can protect the battery from working in very high humidity conditions.
267 267  
268 268  To change the protection parameters, select the "Protections → Water" section:
269 269  
... ... @@ -271,12 +271,12 @@
271 271  
272 272  In this section:
273 273  
274 -* Enable – a flag to enable the protection;
275 -* Maximum humidity, RH%;
276 -* Tolerant humidity, RH%;
277 -* Delay before setting the error, second;
278 -* Delay before clearing the error, second;
279 -* Lock – lock the error until the device is reset.
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.
280 280  
281 281  As a result of the operation of the battery protection from water, the "Water" error is generated.
282 282  
... ... @@ -288,9 +288,9 @@
288 288  
289 289  * the measured humidity is less than the “Tolerant humidity” value during the “Delay before clearing the error” time.
290 290  
291 -(% class="box infomessage" %)
310 +(% class="box warningmessage" %)
292 292  (((
293 -If there is the “Water” error, the **“Critical error”** is generated and **all relays open**.
312 +If there is the “Water” error, the **“Critical error”** is generated.
294 294  )))
295 295  
296 296  === Logic high temperature ===
... ... @@ -301,12 +301,12 @@
301 301  
302 302  In this section:
303 303  
304 -* Enable – a flag to enable the protection;
305 -* Maximum temperature, °C;
306 -* Tolerant temperature, °C;
307 -* Delay before setting the error, second;
308 -* Delay before clearing the error, second;
309 -* Lock – lock the error until the device is reset.
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.
310 310  
311 311  As a result of the operation of the protection from high temperatures of BMS Logic devices, the "High Logic temperature" is generated.
312 312  
... ... @@ -327,12 +327,15 @@
327 327  
328 328  To change the protection parameters from loss of communication with BMS Logic devices, select the "Protections → Logic offline" section:
329 329  
330 -[[image:1733328399416-818.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="86" width="800"]]
349 +[[image:1755871522789-489.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="102" width="800"]]
331 331  
351 +
332 332  In this section:
333 333  
334 -* Enable – a flag to enable the protection;
335 -* Lock – lock the error until the device is reset.
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.
336 336  
337 337  As a result of the protection from loss of communication with BMS Logic devices, the "Logic offline" error is generated.
338 338  
... ... @@ -346,7 +346,7 @@
346 346  
347 347  (% class="box warningmessage" %)
348 348  (((
349 -If there is the "Logic offline" error, the **“Critical error” **is generated and **all relays open.**
371 +If there is the "Logic offline" error, the **“Critical error” **is generated**.**
350 350  )))
351 351  
352 352  === Cell count ===
... ... @@ -357,11 +357,11 @@
357 357  
358 358  In this section:
359 359  
360 -* Enable – a flag to enable the protection;
361 -* Number of cells – a number of cells connected to the BMS;
362 -* Delay before setting the error, millisecond;
363 -* Delay before clearing the error, second;
364 -* Lock – a flag to block the error until the device is restarted.
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.
365 365  
366 366  As a result of the operation of the protection from the mismatch of the number of cells, the "Cell count error" is generated.
367 367  
... ... @@ -375,40 +375,73 @@
375 375  
376 376  (% class="box warningmessage" %)
377 377  (((
378 -If there is the "Cell count error", the **“Critical error” **is generated and **all relays open.**
400 +If there is the "Cell count error", the **“Critical error” **is generated**.**
379 379  )))
380 380  
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 +
381 381  === Logic count ===
382 382  
383 383  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:
384 384  
385 -[[image:1733328415732-163.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="110" width="800"]]
436 +[[image:1762425434368-516.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="125" width="800"]]
386 386  
387 387  In this section:
388 388  
389 -* Enable – a flag to enable the protection;
390 -* Logic count – a number of BMS Logic devices connected to the BMS Main;
391 -* 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);
392 -* Lock – lock the error until the device is reset.
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.
393 393  
394 394  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.
395 395  
396 396  Error generation conditions:
397 397  
398 -* the number of BMS Logic devices connected to the BMS Main is **not equal** to the “Logic count” value.
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.
399 399  
400 400  Conditions for removing the error:
401 401  
402 -* the number of BMS Logic devices connected to the BMS Main is **equal** to the “Logic count” value.
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.
403 403  
404 404  (% class="box warningmessage" %)
405 405  (((
406 -If there is the "Logic count error", the **“Critical error”** is generated and **all relays open.**
461 +If there is the "Logic count error", the **“Critical error”** is generated.
407 407  )))
408 408  
409 409  === Short circuit ===
410 410  
411 -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.
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.
412 412  
413 413  To change the protection parameters from short circuit, select the "Protections → Short circuit" section:
414 414  
... ... @@ -416,12 +416,12 @@
416 416  
417 417  In this section:
418 418  
419 -* Level 1, 2, 3 – three protection levels. The following parameters are configured at each level:
420 -** Enable – a flag to enable the protection;
421 -** Maximum current, A;
422 -** Delay before setting the error, second;
423 -* Delay before clearing the error, second;
424 -* Lock – a flag to block the error until the device is restarted.
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.
425 425  
426 426  If there is a short circuit, the "Short circuit" error is generated.
427 427  
... ... @@ -433,14 +433,9 @@
433 433  
434 434  * the current modulo is lower than the “Maximum current” values for all three protection levels during the “Delay before setting the error” time.
435 435  
436 -(% class="box infomessage" %)
437 -(((
438 -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).
439 -)))
440 -
441 441  === High contactor temperature ===
442 442  
443 -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.
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.
444 444  
445 445  To change the overheating protection parameters of power contactors, select the "Protections → High contactor temperature" section:
446 446  
... ... @@ -448,13 +448,13 @@
448 448  
449 449  In this section:
450 450  
451 -* Enable – a flag to enable the protection;
452 -* Thermistor – a selection of which cell thermistor will be used as contactor temperature sensor;
453 -* Maximum contactor temperature, °C;
454 -* Tolerant contactor temperature, °C;
455 -* Delay before setting the error, second;
456 -* Delay before clearing the error, second;
457 -* Lock – a flag to block the error until the device is restarted.
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.
458 458  
459 459  If there is a contactor overheat, the "High contactor temperature" error is generated.
460 460  
... ... @@ -466,14 +466,9 @@
466 466  
467 467  * the contactor temperature is lower than the “Tolerant contactor temperature” value during the “Delay before clearing the error” time.
468 468  
469 -(% class="box infomessage" %)
470 -(((
471 -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).
472 -)))
473 -
474 474  === Current sensor ===
475 475  
476 -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.
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.
477 477  
478 478  To change the test parameters of the current sensor connection circuits, select the "Protections → Current sensor" section:
479 479  
... ... @@ -502,12 +502,12 @@
502 502  
503 503  (% class="box warningmessage" %)
504 504  (((
505 -If there is the “Current sensor error”, the **“Critical error” **is generated and **all relays open.**
550 +If there is the “Current sensor error”, the **“Critical error” **is generated.
506 506  )))
507 507  
508 508  === Power switch ===
509 509  
510 -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:
555 +BMS Main 3 / BMS Main 2R 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:
511 511  
512 512  [[image:1733328461554-241.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="99" width="800"]]
513 513  
... ... @@ -520,16 +520,42 @@
520 520  
521 521  (% class="box warningmessage" %)
522 522  (((
523 -If there is the "Power switch error", the **“Critical error” **is generated and **all relays open.**
568 +If there is the "Power switch error", the **“Critical error” **is generated.
524 524  )))
525 525  
526 526  === Power fault ===
527 527  
528 -TBA
573 +BMS Main 3 / BMS Main 2R device checks the status of CAN2, CAN3, RS-485-2 and Current sensors power supply.
529 529  
575 +(% class="box infomessage" %)
576 +(((
577 +**Note:** this error can be configured only under** "Service" account**.
578 +)))
579 +
580 +To change the parameters of the power fault error, select the "Protections → Power fault" section:
581 +
582 +[[image:1739284154410-676.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="96" width="800"]]
583 +
584 +In this section:
585 +
586 +* Enable – a flag to enable the protection;
587 +* Delay before setting the error, millisecond;
588 +* Time to keep power off, millisecond;
589 +* Delay before clearing the error, millisecond;
590 +* Lock – a flag to block the error until the device is restarted.
591 +
592 +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.
593 +
594 +Error is removed when the power consumption is normal during “Delay before clearing the error” time.
595 +
596 +(% class="box warningmessage" %)
597 +(((
598 +If there is the "Power fault", the **“Critical error” **is generated.
599 +)))
600 +
530 530  === Charge contactor cycles ===
531 531  
532 -The BMS Main 3 device protects the charging contactor against frequent switching.
603 +The BMS Main 3 / BMS Main 2R device protects the charging contactor against frequent switching.
533 533  
534 534  To change the protection parameters against high frequency switching of the charging contactor, select the "Protections → Charge contactor cycles" section:
535 535  
... ... @@ -554,14 +554,9 @@
554 554  
555 555  * the “Delay before clearing the error” time has passed since the error was generated.
556 556  
557 -(% class="box infomessage" %)
558 -(((
559 -If there is the "CH contactor cycles error" error, the **charging **contactor opens.
560 -)))
561 -
562 562  === Discharge contactor cycles ===
563 563  
564 -The BMS Main 3 device protects the discharging contactor against frequent switching.
630 +The BMS Main 3 / BMS Main 2R device protects the discharging contactor against frequent switching.
565 565  
566 566  To change the protection parameters against high frequency switching of the discharging contactor, select the "Protections → Discharging contactor cycles" section:
567 567  
... ... @@ -586,14 +586,9 @@
586 586  
587 587  * the “Delay before clearing the error” time has passed since the error was generated.
588 588  
589 -(% class="box infomessage" %)
590 -(((
591 -If there is the "DCH contactor cycles error" error, the **discharging **contactor opens.
592 -)))
593 -
594 594  === Temperature sensors ===
595 595  
596 -The BMS Main 3 device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
657 +The BMS Main 3 / BMS Main 2R device checks the temperature sensors connection circuits. The circuits are checked for breakage and short-circuit.
597 597  
598 598  To change the protection parameters of the temperature sensors circuits, select the "Protections → Temperature sensors" section:
599 599  
... ... @@ -610,7 +610,7 @@
610 610  
611 611  (% class="box warningmessage" %)
612 612  (((
613 -If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated and **all relays open.**
674 +If there is the “No temp. sensors” or “Temp. sensor is shorted” error, the **“Critical error”** is generated.
614 614  )))
615 615  
616 616  === WDT reset ===
... ... @@ -633,7 +633,7 @@
633 633  
634 634  (% class="box warningmessage" %)
635 635  (((
636 -If there is the "WDT reset" error, the **“Critical error” **is generated and **all relays open.**
697 +If there is the "WDT reset" error, the **“Critical error” **is generated.
637 637  )))
638 638  
639 639  === Unallowable charging ===
... ... @@ -661,14 +661,9 @@
661 661  
662 662  * the battery current is zero during the “Delay before clearing the error” time.
663 663  
664 -(% class="box infomessage" %)
665 -(((
666 -If there is the "Unallowable charging" error, the **discharging **contactor opens.
667 -)))
668 -
669 669  === Stuck contactor ===
670 670  
671 -The BMS Main 3 device protects contactors against sticking.
727 +The BMS Main 3 / BMS Main 2R device protects contactors against sticking.
672 672  
673 673  To change the protection parameters against sticking, select the "Protections → Stuck contactor" section:
674 674  
... ... @@ -689,12 +689,12 @@
689 689  
690 690  (% class="box warningmessage" %)
691 691  (((
692 -If there is the “Stuck contactor” error, the **“Critical error” **is generated and **all relays open.**
748 +If there is the “Stuck contactor” error, the **“Critical error” **is generated.
693 693  )))
694 694  
695 695  === Contactor feedback ===
696 696  
697 -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.
753 +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.
698 698  
699 699  To change the contactor feedback check parameters, select the "Protections → Contactor feedback" section:
700 700  
... ... @@ -713,12 +713,12 @@
713 713  
714 714  (% class="box warningmessage" %)
715 715  (((
716 -If there is the “Contactor feedback” error, the **“Critical error” **is generated and **all relays open.**
772 +If there is the “Contactor feedback” error, the **“Critical error” **is generated.
717 717  )))
718 718  
719 719  === Insulation ===
720 720  
721 -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.
777 +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.
722 722  
723 723  To change the insulation monitoring parameters, select the "Protections → Insulation" section:
724 724  
... ... @@ -739,12 +739,12 @@
739 739  
740 740  (% class="box warningmessage" %)
741 741  (((
742 -If there is the “Insulation fault”, the **“Critical error”** is generated and **all relays open.**
798 +If there is the “Insulation fault”, the **“Critical error”** is generated.
743 743  )))
744 744  
745 745  === HVIL ===
746 746  
747 -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.
803 +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.
748 748  
749 749  To change the HVIL measurement parameters, select the "Protections → HVIL" section:
750 750  
... ... @@ -759,58 +759,66 @@
759 759  * Source is ON: Upper current limit, A;
760 760  * Lock – a flag to block the error until the device is restarted.
761 761  
762 -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.
818 +If interlock loop breaks and its current is out of the configured ranges, the “HVIL error” is generated.
763 763  
820 +Error clears if interlock loop is being restored.
821 +
764 764  (% class="box warningmessage" %)
765 765  (((
766 -If there is the “HVIL error”, the **“Critical error”** is generated and **all relays open.**
824 +If there is the “HVIL error”, the **“Critical error”** is generated.
767 767  )))
768 768  
769 -=== Critical error ===
827 +=== Battery voltage ===
770 770  
771 -To change the critical error parameters, select the "Protections → Critical error" section:
829 +The BMS Main 3 / BMS Main 2R allows to control the difference between sum of all cell voltages and voltage measured before the contactors.
772 772  
773 -[[image:1733328487100-898.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="101" width="800"]]
831 +To change the voltage difference check parameters, select the "Protections → Battery voltage" section:
774 774  
833 +[[image:1755871661259-633.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="100" width="800"]]
834 +
775 775  In this section:
776 776  
777 777  * Enable – a flag to enable the protection;
778 -* Delay before setting the error, millisecond;
838 +* Abnormal voltage difference – a maximum difference between sum of all cell voltages and voltage measured before the contactors (High voltage 1), V;
839 +* Delay before setting the error, second;
779 779  * Delay before clearing the error, second;
780 780  * Lock – a flag to block the error until the device is restarted.
781 781  
782 -The critical error flag is generated if at least one of the following errors is generated during the “Delay before setting the error” time:
843 +If there is a mismatch between voltages, "Battery voltage mismatch" error is generated.
783 783  
784 -* “Battery cover error”;
785 -* “Water”;
786 -* “Logic offline”;
787 -* “Cell count error”;
788 -* “ADC error”;
789 -* “Current sensor error”;
790 -* “Shunt offline”;
791 -* “Shunt error”;
792 -* “WDT reset”
793 -* “No temp. sensors”;
794 -* “Temperature sensor shorted”;
795 -* “Stuck contactor”;
796 -* “CH contactor feedback error”;
797 -* “DCH contactor feedback error”;
798 -* “Insulation fault”;
799 -* “PCH contactor feedback error”;
800 -* “CH/DCH contactor feedback error”;
801 -* “Main contactor feedback error”;
802 -* “High voltage fault”;
803 -* “Power switch error”;
804 -* “HVIL error”l
805 -* “Power fault”.
845 +Error generation conditions:
806 806  
807 -The “Critical error” is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
847 +* 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.
808 808  
809 -(% class="box infomessage" %)
849 +Conditions for removing the error:
850 +
851 +* 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.
852 +
853 +(% class="box warningmessage" %)
810 810  (((
811 -If there is the “Critical error”, **all **contactors open.
855 +If there is the “Battery voltage mismatch” error, the **“Critical error”** is generated.
812 812  )))
813 813  
858 +=== Critical error ===
859 +
860 +Some of the errors are system critical. A separate signal named "Critical error" indicates a BMS fault.
861 +
862 +To change the critical error parameters, select the "Protections → Critical error" section:
863 +
864 +[[image:1762775547945-129.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="117" width="800"]]
865 +
866 +In this section:
867 +
868 +* Enable – a flag to enable the protection;
869 +* Delay before setting the error, millisecond;
870 +* Delay before clearing the error, second;
871 +* Errors 1, 2 to to ignore when setting the critical error;
872 +* Lock – a flag to block the error until the device is restarted.
873 +
874 +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.
875 +
876 +The “Critical error" signal is cleared if there are no errors from the list above during the “Delay before clearing the error” time.
877 +
814 814  === General error ===
815 815  
816 816  To change the general error parameters, select the "Protections → Critical error" section:
... ... @@ -825,11 +825,11 @@
825 825  * Lock – a flag to block the error until the device is restarted;
826 826  * Errors 1, 2 to set the "Critical error" – bitfields to enable check of corresponding errors.
827 827  
828 -The general error flag is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
892 +The “General error”is generated if at least one of the enabled errors is generated during the “Delay before setting the error” time.
829 829  
830 830  The “General error” is cleared if there are no errors from the enabled errors during the “Delay before clearing the error” time.
831 831  
832 832  (% class="box infomessage" %)
833 833  (((
834 -The state of the “General error” can be output to a discrete output or a power switch.
898 +The state of the “General error” can be assigned to a discrete output or to a power switch.
835 835  )))
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